Table Of Contents
Cisco UCS B420 M3 High Performance Blade Server Installation and Service Note
This document describes how to install and service the Cisco UCS B420 M3 High Performance Blade Server, a full-width blade server (see Figure 1) meaning up to four of these high-density, four-socket blade servers can reside in a Cisco UCS 5108 Blade Server chassis.
The B420 M3 Blade Server has the following features:
•Up to four Intel Xeon processor E5-4600 processor family CPUs, with up to 32 cores per server
•48 DIMM slots for registered ECC DIMMs, with up to 1.5-TB memory capacity (using 32-GB LRDIMMs)
•3 adapter connectors for up to 160-Gb/s bandwidth:
–One dedicated connector for the Cisco VIC 1240 modular LAN-on-motherboard (mLOM)
–Two connectors for Cisco the VIC 1280, VIC Port Expander, or third-party network adapter cards
•Four hot-plug drive bays that support SAS or SATA SSD drives
•LSI 2208R controller that provides RAID 0, 1, 5, and 10 with an optional 1-GB flash-backed write cache
Figure 1 B420 M3 Blade Server Front Panel
Note Each server has a blank plastic tag that pulls out of the front panel so you can add your own asset tracking label without interfering with the intended air flow.
The LEDs in the following table indicate whether the blade server is in active or standby mode, the status of the network link, the overall health of the blade server, and whether the server is set to give a flashing blue beaconing indication. The removable drives also have LEDs indicating drive access activity and health.
The Reset button is just inside the chassis and must be pressed using the tip of a paper clip or a similar item. Hold the button down for five seconds and then release it to restart the server if other methods of restarting are not working.
The beaconing function for an individual server may be turned on or off by pressing the combination button and LED.
The Power button and LED allows you to manually take a server temporarily out of service but leave it in a state where it can be restarted quickly.
A console port is provided to give a direct connection to a blade server to allow operating system installation and other management tasks to be done directly rather than remotely. The port uses the KVM dongle device included in the chassis accessory kit.
The KVM cable (N20-BKVM) shown in Figure 2 allows a KVM connection into a Cisco UCS blade server, providing a DB9 serial connector, a VGA connector for a monitor, and dual USB ports for a keyboard and mouse. With this cable, you can create a direct connection to the operating system and the BIOS that runs on a blade server. The pinout for the DB-9 connector is shown in Table 2.
Figure 2 KVM Cable for Blade Servers
Connector to blade server
DB9 serial connector
VGA connection for a monitor
2-port USB connector for a mouse and keyboard
Table 2 DB-9 Connector Pinout
Signal Name Pin Number
1 UCS 440 only.
This document uses the following conventions for notes, cautions, and safety warnings.
Notes and Cautions contain important information that you should know.
Note Means reader take note. Notes contain helpful suggestions or references to material that are not covered in the publication.
Caution Means reader be careful. You are capable of doing something that might result in equipment damage or loss of data.
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, can cause physical injuries. A warning symbol precedes each warning statement.
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen.
BEWAAR DEZE INSTRUCTIES
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.
SÄILYTÄ NÄMÄ OHJEET
IMPORTANTES INFORMATIONS DE SÉCURITÉ
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.
CONSERVEZ CES INFORMATIONS
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
BEWAHREN SIE DIESE HINWEISE GUT AUF.
IMPORTANTI ISTRUZIONI SULLA SICUREZZA
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento.
CONSERVARE QUESTE ISTRUZIONI
Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten.
TA VARE PÅ DISSE INSTRUKSJONENE
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.
GUARDE ESTAS INSTRUÇÕES
INSTRUCCIONES IMPORTANTES DE SEGURIDAD
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.
GUARDE ESTAS INSTRUCCIONES
Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning.
SPARA DESSA ANVISNINGAR
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.
GUARDE ESTAS INSTRUÇÕES
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de oversatte advarsler, der fulgte med denne enhed.
GEM DISSE ANVISNINGER
Installing and Removing a Drive
Each blade has up to 4 front-accessible, hot plug capable, 2.5-inch SAS or SATA drive bays. The B420 M3 blade server uses an LSI SAS 2208R RAID controller, with 6 Gbps SAS connectivity and RAID 0/1/5/10 capabilities. You can remove blade server hard drives without removing the blade server from the chassis. All other component replacement for a blade server requires removing the blade from the chassis. Unused hard drive bays should always be covered with cover plates (N20-BBLKD) to assure proper cooling and ventilation. in Figure 1, the chassis is omitted to simplify the drawing.
Caution To prevent ESD damage, wear grounding wrist straps during these procedures and handle modules by the carrier edges only.
Caution RAID array migration between a B440 M1 or B440 M2 and a B420 M3 is not supported because they use different RAID controller types.
Replacing an HDD or SSD with a drive of the same size, model, and manufacturer generally causes few problems with UCS Manager. If the drive being replaced was part of a RAID array we recommend that you use a newly ordered drive of identical size, model, and manufacturer to replace the failed drive. We recommend that you following the industry standard practice of using drives of the same capacity when you create RAID volumes. If drives of different capacities are used, the usable portion of the smallest drive will be used on all drives that make up the RAID volume. Before upgrading or adding an HDD to a running system, check the service profile in Cisco UCS Manager and make sure the new hardware configuration is within the parameters allowed by the service profile.
For information about local disk and RAID troubleshooting information, see the" Troubleshooting Server Hardware" chapter of the Cisco UCS Troubleshooting Guide.
The drives supported in this blade server are constantly being updated. A list of currently supported and available drives is in the specification sheets at:
The onboard RAID controller supports the following RAID levels:
•RAID 0 (data striping): Data is striped across all disks in the array, which provides fast throughput. There is no data redundancy, and all data is lost if any disk fails.
•RAID 1 (disk mirroring): Data is written to two disks, which provides complete data redundancy if one disk fails. The maximum array size is equal to the available space on the smaller of the two drives.
•RAID 5 (disk striping with distributed parity): Data is striped across all disks in the array. Part of the capacity of each disk stores parity information that can be used to reconstruct data if a disk fails. RAID 5 provides good data throughput for applications with high read request rates.
•RAID 10 (combination of RAID 0 and RAID 1): data is striped across mirrored drives. RAID 10 breaks up data into smaller blocks and mirrors the blocks of data to each RAID 1 drive group. The first RAID 1 drive in each drive group then duplicates its data to the second drive. The size of each block is determined by the stripe size parameter, which is set during the creation of the RAID set. The RAID 1 virtual drives must have the same stripe size.
Removing a Blade Server Drive
To remove a hard drive from a blade server, follow these steps:
Step 1 Push the button to release the ejector, and then pull the hard drive from its slot. (See Figure 3.)
Step 2 Place the hard drive on an antistatic mat or antistatic foam if you are not immediately reinstalling it in another blade server.
Step 3 Install a blank faceplate (N20-BBLKD) to keep dust out of the blade server if the slot will remain empty.
Figure 3 Removing and Installing a Drive
Installing a Blade Server Drive
To install a blade server hard drive, follow these steps:
Step 1 Place the hard drive lever into the open position by pushing the release button (see Figure 3).
Step 2 Gently slide the hard drive into the opening in the blade server until it seats into place.
Step 3 Push the hard drive lever into the closed position.
You can use Cisco UCS Manager to format and configure RAID services. See the UCS Manager configuration guide for your software release for details on RAID configuration.
If you need to move a RAID cluster from one server to another, refer to the "Moving a RAID Cluster" section of the "Troubleshooting Server Hardware" chapter of the Cisco UCS Troubleshooting Guide.
Removing and Installing a B420 M3 Blade Server
Before performing any internal operation on a blade server, you must turn it off and remove it from the chassis.
Caution To prevent ESD damage, wear grounding wrist straps during these procedures and handle modules by the carrier edges only.
Shutting Down and Powering Off a Blade Server
The server can run in two power modes:
•Main power mode—Power is supplied to all server components and any operating system on your hard drives can run.
•Standby power mode—Power is supplied only to the service processor and the cooling fans and it is safe to power off the server from this mode.
After establishing a connection to the blade server's operating system, you can directly shut down the blade server using the operating system.
You can invoke a graceful shutdown or an emergency shutdown (hard shutdown) by using either of the following methods:
•Use Cisco UCS Manager. See either the Cisco UCS Manager GUI Configuration Guide or the Cisco UCS Manager CLI Configuration Guide.
•Use the Power button on the server front panel. To use the Power button, follow these steps:
Step 1 Check the color of the Power Status LED:
•Green indicates that the server is in main power mode and must be shut down before it can be safely powered off. Go to Step 2.
•Amber indicates that the server is already in standby mode and can be safely powered off. Go to Step 3.
Step 2 Invoke either a graceful shutdown or a hard shutdown:
Caution To avoid data loss or damage to your operating system, you should always invoke a graceful shutdown of the operating system.
•Graceful shutdown—Press and release the Power button. The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber Power Status LED.
•Emergency shutdown—Press and hold the Power button for 4 seconds to force the main power off and immediately enter standby mode.
Step 3 If you are shutting down all blade servers in a chassis, you should now disconnect the power cords from the chassis to completely power off the servers. If you are shutting down only one server, you can skip unplugging the chassis and move to removing the server.
Removing a Blade Server
You must decommission the server using Cisco UCS Manager before physically removing the blade server.
To remove a blade server from the chassis, follow these steps:
Step 1 Turn off the blade server using either UCS Manager or the power button.
Step 2 Completely loosen the captive screws on the front of the blade.
Step 3 Remove the blade from the chassis by pulling the ejector levers on the blade until it unseats the blade server.
Step 4 Slide the blade part of the way out of the chassis, and place your other hand under the blade to support its weight.
Step 5 Once removed, place the blade on an antistatic mat or antistatic foam if you are not immediately reinstalling it into another slot.
Step 6 If the slot is to remain empty, reinstall the slot divider (N20-CDIVV) and install two blank faceplates (N20-CBLKB1) to keep assure proper ventilation and cooling.
Installing a Blade Server
Full-width Blade Servers are intended to run in the upper slots of the chassis, if the chassis will house both full-width and half-width servers. A chassis with four full width servers is fully supported.
To install a blade server, follow these steps:
Step 1 If necessary, remove the slot divider (N20-CDIVV) from the chassis.
a. Simultaneously pull up on the left side catch and push down on the right side catch as shown in callout 1 of Figure 4.
b. Pull the slot divider out of the chassis as shown in callout 2 of Figure 4. Keep the slot divider in case it is needed at another time.
Tip To reinstall the slot divider, align it with the dimples in the slot top and bottom and slide it back in until it clicks into place.
Figure 4 Removing a Slot Divider
Step 2 Grasp the front of the blade server and place your other hand under the blade to support it. See Figure 5.
Figure 5 Positioning a Blade Server in the Chassis
Step 3 Open the ejector levers in the front of the blade server.
Step 4 Gently slide the blade into the opening until you cannot push it any farther.
Step 5 Press the ejector levers so that they catch the edge of the chassis and press the blade server all the way in.
Step 6 Tighten the captive screw on the front of the blade to no more than 3 in-lbs. Tightening with bare fingers only is unlikely to lead to stripped or damaged captive screws.
Secure Digital Card Access
Secure Digital (SD) card slots are provided for future usage. Their use is not supported at this product release. They will require a future software update to be used.
Figure 6 SD Card Slot Locations
Removing the Cover
To open a blade server, follow these steps:
Step 1 Press and hold the button down as shown in callout 1 of Figure 7.
Step 2 While holding the back end of the cover, pull the cover back and up as shown in callout 2 of Figure 7.
Figure 7 Opening a Blade Server
The air baffles (UCSB-BAFF-B420-M3=) shown in Figure 8 ship with this server; they direct and improve air flow for the server components. No tools are necessary to install them. Place them over the DIMMs and align them to the standoffs.
Caution Be sure that the tabs on the baffles are set in the slots provided on the motherboard; otherwise, it may be difficult to replace the server cover or damage to the motherboard might occur.
Figure 8 Cisco UCS B420 Air Baffles
Figure 9 shows the various components within the B420 M3 Blade Server.
Figure 9 Inside View of the Blade Server
Hard drive bay 1
Drive bay 2
Hard drive bay 3
Drive bay 4
Internal USB connector 1
Transferable Flash-backed Write Cache Module (TFM) for flash-backed write cache2
DIMM slots for CPU 1
DIMM slots for CPU 2
DIMM slots for CPU 3
DIMM slots for CPU 4
mLOM card 3
Adapter card 4
Supercap for flash-backed write cache2
Adapter card 5
1 Cisco UCS-USBFLSH-S-4GB= is recommended, but if you use another USB drive it must be no wider than 0.8 inches (20 mm), and no more than 1.345 inches (34 mm) long in order to provide needed clearances to install or remove the USB drive. Third-party USB flash memory is allowed but not subject to support by Cisco and is at the user's risk.
2 The flash-backed write cache feature is not supported at the initial server release.
3 This slot is shown in Cisco UCS Manager as "Adapter 1" but the BIOS lists it as "mLOM." The VIC 1240 is a type of adapter with a specific footprint that can only be used in this slot.
4 This slot is shown in Cisco UCS Manager as "Adapter 2," but is shown in the BIOS as "Mezz 1." Mixing adapter types is supported.
5 This slot is shown in Cisco UCS Manager as "Adapter 3," but it is shown in the BIOS as "Mezz 2." Mixing adapter types is supported.
Note A squeeze-to-remove retaining clip is provided to secure the internal USB flash memory, the clip must always be securely fastened when the flash memory is in use. Third party memory that will not fit in the clip should not be used. When installing USB memory, do so in the orientation shown in Figure 9, item 6.
Note Use of this server may require an upgrade to the FEX in the chassis. The 2104XP fabric extender is not compatible when any Cisco-certified adapter is installed in slot 1 or slot 2. If a VIC 1240 modular LOM card is installed, you will have connectivity through the mLOM but other adapters will not be recognized.
Diagnostics Button and LEDs
At blade start-up, Power-on Self Test (POST) diagnostics test the CPUs, DIMMs, HDDs and adapter cards. Any failure notifications are sent to Cisco Ucs Manager. You can view these notification in the System Error Log or in the output of the show tech-support command. If errors are found, an amber diagnostic LED also lights up next to the failed component. During run time, the blade BIOS, component drivers, and OS all monitor for hardware faults and the amber diagnostic LED for a component lights up if an uncorrectable error or correctable errors (such as a host ECC error) over the allowed threshold occur.
LED states are saved. If you remove the blade from the chassis, the LED values are preserved in memory for up to 10 minutes. Pressing the LED diagnostics button on the motherboard causes the LEDs that currently show a component fault to light for up to 30 seconds for easier component identification. LED fault values are reset when the blade is reinserted into the chassis and booted, and the process begins again.
If DIMM insertion errors are detected, they may cause the blade discovery to fail and errors will be reported in the server POST information, viewable using the UCS Manager GUI or CLI. Cisco UCS blade servers require specific rules to be followed when populating DIMMs in a blade server, and the rules depend on the blade server model. Refer to the section on DIMM population for those rules.
Drive status LEDs are on the front face of the drive. Faults on the CPU, DIMMs, or adapter cards also cause the server health LED to light solid amber for minor error conditions or blinking amber for critical error conditions.
Working Inside the Blade Server
This section describes how to perform the following tasks within a blade server:
Installing a Motherboard CMOS Battery
This server supports the CR2032 CMOS battery (N20-MBLIBATT).
Warning There is danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.
Note Replacing this battery resets the BIOS settings to default settings, which might be undesirable or might be useful when trying to recover a BIOS.
To install or replace a motherboard complementary metal-oxide semiconductor (CMOS) battery, follow these steps:
Step 1 Remove a motherboard CMOS battery:
a. Set the power button to Standby (it goes from green to amber).
b. Remove the blade server from the chassis,
c. Remove the top cover as described in the "Removing the Cover" section.
d. Press the battery socket retaining clip toward the chassis wall (see Figure 10).
e. Lift the battery from the socket. Use needle-nose pliers to grasp the battery if there is not enough clearance for your fingers.
Step 2 Install a motherboard CMOS battery:
a. Press the battery socket retaining clip toward the chassis wall.
b. Insert the new battery into the socket with the battery's positive (+) marking toward the chassis wall. Ensure that the retaining clip clicks over the top of the battery.
c. Replace the top cover.
d. Replace the server in the chassis, and then power on the server by pressing the Power button.
Figure 10 Removing and Replacing a Motherboard CMOS Battery
Removing a CPU or Heat Sink
You can order your blade server with two CPUs (they are installed in CPU sockets 1 and 2, and a two socket configuration will only work for those sockets), and upgrade later to up to four CPUs. All CPUs must be of the same type, and memory in slots intended for additional CPUs will not be recognized if the corresponding CPU is not present (see Memory Arrangement). You might need to use these procedures to move a CPU from one server to another or to replace a faulty CPU.
The CPUs supported in this blade server are constantly being updated, a list of currently supported and available CPUs is in the specification sheets at this URL:
Caution The CPU pick and place tool shown in Figure 12 and Figure 14 is required to prevent damage to the connection pins between the motherboard and the CPU. Do not attempt this procedure without the required tool, which is included with each CPU option kit.
To remove a CPU and heat sink, follow these steps:
Step 1 Unscrew the four captive screws securing the heat sink to the motherboard. See Figure 11, callout 1.
Loosen one screw by a quarter turn, then move to the next in the X pattern shown in Figure 16. Continue loosening until the heat sink can be lifted off.
Step 2 Remove the heat sink. See Figure 11, callout 2. Remove the existing thermal compound from the bottom of the heat sink using the cleaning kit (UCSX-HSCK= ) included with each CPU option kit. Follow the instructions on the two bottles of cleaning solvent.
Step 3 Unhook the first socket hook, marked with an icon. See Figure 11, callout 3.
Step 4 Unhook the second socket hook, marked with an icon. See Figure 11, callout 4.
Step 5 Open the socket latch. See Figure 11, callout 5.
Figure 11 Removing the Heat Sink and Accessing the CPU Socket (UCS B200 M3 Server Shown)
Step 6 Press the central button on the provided CPU pick and place tool (UCS-CPU-EP-PNP=) to release the catch. See Figure 12.
The CPU pick and place tool is included with each CPU option kit, or the tool may be purchased separately. Be sure to use the tool for the Intel Xeon E5-2600 Series processors.
Step 7 Remove an old CPU as follows:
a. Place the CPU pick and place tool on the CPU socket aligned with the arrow pointing to the CPU registration mark as shown in Figure 12.
b. Press the button/handle on the tool to grasp the installed CPU.
c. Lift the tool and CPU straight up.
Figure 12 Proper Alignment of CPU Pick and Place Tool (for Intel Xeon E5-2600 Series Processors)
Installing a New CPU and Heat Sink
Before installing a new CPU in a server, verify the following:
•The CPU is supported for that given server model. This may be verified via the server's Technical Specifications ordering guides (see Related Documentation) or by the relevant release of the Cisco UCS Capability Catalog.
•A BIOS update is available and installed that supports the CPU and the given server configuration.
•If the server will be managed by Cisco UCS Manager, the service profile for this server in UCS Manager will recognize and allow the new CPU.
If you are installing a CPU in a socket that had been shipped empty, there will be a protective cap intended to prevent bent or touched contact pins. The pick and pull cap tool provided (See Figure 13) can be used in a manner similar to a pair of tweezers. Grasp the protective cap and pivot as shown.
Figure 13 Protective Cap Removal
To install a CPU and heat sink, follow these steps:
Step 1 Release the catch on the pick and place tool by pressing the handle/button.
Step 2 Remove the new CPU from the packaging, and load it into the pick and place tool as follows (see Figure 14):
a. Confirm that the pedestal is set up correctly for your processor. The pedestal ships configured with the markings "LGA2011-R0" facing upward, and this is the correct orientation.
b. Place the CPU on the pedestal. The CPU corners should fit snugly at the pedestal corners and the notches should meet the pegs perfectly.
c. Place the CPU pick and place tool on the CPU pedestal aligned with the A1 arrow pointing to the A1 registration mark on the pedestal.
d. Press the button/handle on the tool to grasp the CPU.
e. Lift the tool and CPU straight up off of the pedestal.
Figure 14 Loading the Pick and Place Tool
Step 3 Place the CPU and tool on the CPU socket with the registration marks aligned as shown in Figure 15.
Step 4 Press the button/handle on the pick and place tool to release the CPU into the socket.
Figure 15 Using the CPU Pick and Place Tool to Insert the CPU
Step 5 Close the socket latch. See Figure 16, callout 1.
Step 6 Secure the first hook, marked with an icon. See Figure 16, callout 2.
Step 7 Secure the second hook, marked with an icon. See Figure 16, callout 3.
Figure 16 Replacing the Heat Sink (B200 M3 Shown)
Step 8 Using the syringe of thermal grease provided with replacement CPUs and servers (and available separately as UCS-CPU-GREASE=, the only exceptions are Cisco UCS C220 M3 and and C240 M3 servers which use UCS-CPU-GREASE2= instead), add 2 cubic centimeters of thermal grease to the top of the CPU where it will contact the heat sink. Use the pattern shown in Figure 17. This should require half the contents of the syringe.
Figure 17 Thermal Grease Application Pattern
Caution The thermal grease has very specific thermal properties, and thermal grease from other sources should not be substituted. Using other thermal grease may lead to damage.
Step 9 Replace the heat sink. See Figure 16, callout 4.
Caution On certain models, heat sinks are keyed to fit into the plastic baffle extending from the motherboard. Do not force a heat sink if it is not fitting well, rotate it and re-orient the heat sink.
Step 10 Secure the heat sink to the motherboard by tightening the four captive screws a quarter turn at a time in an X pattern as shown in the upper right of Figure 16.
Note The Transferable Flash-backed Write Cache Module (TFM, Cisco Product ID UCSB-RAID-1GBFM) used by the RAID controller has the same form factor as a typical DIMM, and the installation instructions are the same. It goes in the dedicated slot as shown in Figure 20. The TFM is not supported at the initial product release.
Check the server's service profile setting in Cisco UCS Manager before adding memory to make sure that the new memory will be recognized. To install a DIMM into the blade server, follow these steps:
Step 1 Open both DIMM connector latches. See callout 1 in Figure 18.
Figure 18 Installing DIMMs in the Blade Server
Step 2 Press the DIMM into its slot evenly on both ends until it clicks into place. See callout 2 in Figure 18. The DIMM connector latches will snap into place.
Note DIMMs are keyed and will only insert into their slot if the notch at the bottom of the DIMM is oriented correctly. Attempting to force an incorrectly oriented DIMM will damage the slot.
Step 3 Press the DIMM connector latches inward slightly to seat them fully. See callout 3 in Figure 18.
Memory and Performance
This section describes the type of memory that the blade server requires, and its effect on performance. This section includes the following topics :
The DIMMs that are supported in this blade server are constantly being updated. A list of currently supported and available DIMMs is in the specification sheets at this URL:
Cisco does not support third-party memory DIMMs, and in some cases their use may irreparably damage the server and require an RMA and down time.
The Cisco UCS B420 high-performance blade server contains 48 slots for installing DIMMs—12 for each CPU. Each CPU has 12 DIMM slots spread over 4 channels. This blade server needs at least one DIMM attached to all populated CPUs. DIMMs installed in slots for an absent CPU will not be recognized. For optimal performance, distribute DIMMs evenly across all CPUs. DIMM connector latches are color coded blue, black, and white, and we recommend that you install memory in roughly that order.
Figure 19 Memory Slots Within the Blade Server
Each CPU has 4 channels, consisting of 3 DIMMs. Each channel is identified by a letter. Each channel member is identified by numbers, 0, 1 or 2.
Figure 20 shows how channels are physically laid out on the blade server, and Table 3 shows the population order per CPU. The DIMM slots are contiguous to their associated CPU. When installing DIMMs, you must add them in the configurations shown in Table 3.
Table 3 UCS B420 M3 DIMM Slot Population
DIMMs per CPU Populate
CPU 1 Slots
CPU 2 Slots
CPU 3 Slots
CPU 4 Slots
A0, B0, C0
E0, F0, G0
I0, J0, K0
M0, N0, O0
A0, B0, C0, D0
E0, F0, G0, H0
I0, J0, K0, L0
M0, N0, O0, P0
Not recommended for performance reasons.
A0, B0, C0,
A1, B1, C1
E0, F0, G0,
E1, F1, G1
I0, J0, K0,
I1, J1, K1
M0, N0, O0, M1, N1, O1
Not recommended for performance reasons.
A0, B0, C0, D0,
A1, B1, C1, D1
E0, F0, G0, H0, E1, F1, G1, H1
I0, J0, K0, L0, I1, J1, K1, L1
M0, N0, O0, P0, M1, N1, O1, P1
A0, B0, C0,
A1, B1, C1,
A2, B2, C2
E0, F0, G0,
E1, F1, G1,
E2, F2, G2
I0, J0, K0,
I1, J1, K1,
I2, J2, K2
M0, N0, O0,
M1, N1, O1,
M2, N2, O2
Not recommended for performance reasons.
Not recommended for performance reasons.
A0, B0, C0, D0,
A1, B1, C1, D1,
A2, B2, C2, D2
E0, F0, G0, H0, E1, F1, G1, H1, E2, F2, G2, H2
I0, J0, K0, L0, I1, J1, K1, L1, I2, J2, K2, L2
M0, N0, O0, P0, M1, N1, O1, P1, M2, N2, O2, P2
Figure 20 Physical Representation of DIMMs and CPUs
Figure 21 shows a logical view of the channels.
Figure 21 Logical Representation of Channels
When configuring your server, consider the following.
•DIMMs within the blade server can be of a different size, but mixing speeds causes the faster DIMMs to run at the speed of the slower DIMMs.
•No mixing of DIMM type (LRDIMM, RDIMM) is allowed.
•Your selected CPU(s) can have some affect on performance. CPUs used must be of the same type.
Bandwidth and Performance
You can achieve maximum bandwidth, performance, and system memory by using the following configuration:
•DDR3, 1600 millions of transfers per second (MT/s) across four Channels
•12 DIMMs per CPU (48 DIMMs total)
•Maximum capacity of 1536 GB (using 32-GB DIMMs)
Performance is less than optimal if the following memory configurations are used:
•Mixing DIMM sizes and densities
•Unevenly populating DIMMs between CPUs
Depending on the application needed, performance loss might or might not be noticeable or measurable.
Installing a Modular LOM
The Cisco VIC 1240 is a specialized modular Lan on Motherboard (mLOM) adapter that provides dual 2 x 10 Gb of Ethernet/ or Fiber Channel over Ethernet (FCoE) connectivity to each chassis. It plugs into the dedicated mLOM connector only. It is currently the only card that can be plugged into the mLOM connector and it will provide connectivity through either a 2100 series or 2200 series IOM.
Note You must remove the adapter card to service the modular LOM.
To install an mLOM on the blade server, follow these steps:
Step 1 Position the mLOM's board connector above the motherboard connector and align the captive screw to the standoff post on the motherboard.
Step 2 Firmly press the modular LOM's board connector into the motherboard connector.
Step 3 Tighten the captive screw.
Tip To remove a modular LOM , reverse the above procedure. You might find it helpful when removing the connector from the motherboard to gently rock the board along the length of the connector until it loosens.
Figure 22 Installing an mLOM
Installing an Adapter Card
The network adapters and interface cards all have a shared installation process and are constantly being updated. A list of currently supported and available models for this server is in the specification sheets at this URL:
Note If a VIC 1240 mLOM is not installed, you must have an adapter card installed.
Note Use of the adapters available for this server might require an upgrade to the IOM in the chassis. The 2104XP IOM is not compatible with any Cisco-certified adapter installed in slot 1 or slot 2. If a VIC 1240 mLOM card is installed, you will have connectivity through the mLOM but other adapters will not be recognized. Use of all three slots requires Cisco UCS 2200 series IOMs.
If you are switching from one type of adapter card to another, before you physically perform the switch make sure that you download the latest device drivers and load them into the server's operating system. For more information, see the firmware management chapter of one of the Cisco UCS Manager software configuration guides.
Adapter cards can be installed in either slot 1 or slot 2; they can be of the same type or a mixed configuration.
Note Cisco UCS Manager will recognize adapters in these slots as "Adapter 2" and "Adapter 3," and counts the mLOM as being "Adapter 1."
Adapter Slot Drives
The Cisco UCS 785GB MLC Fusion-io Drive and LSI 400GB SLC WarpDrive have the same form factor as M3 adapter cards and can be installed and removed using the same procedures. Using these drives in a B200 M3 or B22 M3 blade server requires the presence of a VIC 1240 mLOM to provide blade I/O. They will not work in M1 and M2 generation Cisco UCS servers, and can be mixed with an adapter in the B420 M3 server. These drives appear in Cisco UCS Manager as regular SSDs.
To install an adapter cardor adapter slot drive on the blade server, follow these steps:
Step 1 Position the adapter board connector above the motherboard connector and align the two adapter captive screws to the standoff posts (see callout 1 in Figure 23) on the motherboard.
Step 2 Firmly press the adapter connector into the motherboard connector (see callout 2 in Figure 23) .
Step 3 Tighten the two captive screws (see callout 3 in Figure 23) .
Tip Removing an adapter card is the reverse of installing it. You might find it helpful when removing the connector from the motherboard to gently rock the board along the length of the connector until it loosens.
Figure 23 Installing an Adapter Card
Enabling the Trusted Platform Module
The Trusted Platform Module (TPM, Cisco Product ID UCSX-TPM1-001) is a component that can securely store artifacts used to authenticate the server. These artifacts can include passwords, certificates, or encryption keys. A TPM can also be used to store platform measurements that help ensure that the platform remains trustworthy. Authentication (ensuring that the platform can prove that it is what it claims to be) and attestation (a process helping to prove that a platform is trustworthy and has not been breached) are necessary steps to ensure safer computing in all environments.
TPM is a factory-configurable option for this server. It is a requirement for the Intel Trusted Execution Technology (TXT) security feature, which must be enabled in the BIOS settings for a server equipped with a TPM. A TPM cannot be added later by customers or moved from one server to another.
To enable the TPM, follow these steps:
Step 1 Enable Quiet Mode in the BIOS policy of the server's service profile.
Step 2 Establish a direct connection to the server, either by connecting a keyboard, monitor, and mouse to the front panel using a KVM dongle (N20-BKVM shown in Figure 2) or by other means.
Step 3 Reboot the server. Press F2 during reboot to enter the BIOS setup screens.
Step 4 On the Advanced tab, choose Trusted Computing and press Enter.
Step 5 Set the TPM Support option to Enable.
Step 6 Press F10 to save and exit. Allow the server to finish booting.
Installing the Flash-Backed Write Cache
The Flash-backed Write Cache (FBWC) is an intelligent backup solution that protects disk write cache data during a long term power loss on the RAID controller. It has two components, the TFM memory and the Supercap module, which provides emergency power. The TFM installs into the dedicated slot shown in Figure 20, but the installation steps are identical to installing a DIMM. The flash-backed write cache feature and its components are not supported at the initial server release.
Verify whether replacement is required by using the show raid-battery detail command in the CLI.
To install the Supercap module, follow these steps:
Step 1 Using Cisco UCS Manager, perform a graceful shutdown of the server. Without a graceful shutdown, data can be permanently lost.
Step 2 Remove the server from the chassis.
Step 3 Remove the top cover from the server.
Step 4 Remove the adapter in slot 2.
Step 5 With a No.1 Phillips screwdriver, remove the four screws holding the top plate of the Supercap's enclosure.
Step 6 Angle the top plate up and remove the tabs from the slots at the rear. Set the plate aside.
Step 7 Press the clip at the end of the SuperCap's wires into the clip attached to the enclosure.
Step 8 Place the Supercap inside the enclosure.
Step 9 Slide the tabs on the top plate into the slots at the rear of the Supercap enclosure.
Step 10 With a No.1 Phillips screwdriver, replace the four screws and attach the top plate to the enclosure as shown in Figure 24.
Step 11 Replace the adapter, top cover, and the server in the chassis. Cisco UCS Manager reestablishes management of the server and the service profile.
Figure 24 Supercap Installation
Troubleshooting the Server
Configuring the Server
Cisco UCS servers are intended to be configured and managed using Cisco UCS Manager. See the UCS Manager Configuration Guide appropriate for your Cisco UCS Manager version.
Table 4 Physical Specifications for the Cisco UCS B420 M3 Blade Server
1.95 inches (50 mm)
16.50 inches (419.1 mm)
24.4 inches (620 mm)
34.5 lbs (15.65 kg) 1
1 The system weight listed here is an estimate for a fully configured system and will vary depending on peripheral devices installed.
The documentation set for the Cisco Unified Computing System environment is described in full at:
For specifics on which components are supported refer to the server's Technical Specifications ordering guide at the following link:
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