Memory Replacement Instructions for the Network Processing Engine or Network Services Engine and Input/Output Controller
SDRAM and DRAM Memory Systems Overview
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SDRAM and DRAM Memory Systems Overview

Table Of Contents

SDRAM and DRAM Memory Systems Overview

Terms and Acronyms

Network Processing Engine or Network Services Engine Memory Information

NPE-G2 and UBR7200-NPE-G2 Memory Information

NPE-G1 and UBR7200-NPE-G1 Memory Information

NSE-1 Memory Information

NPE-400 Memory Information

NPE-300 Memory Information

NPE-225 and NPE-175 Memory Information

NPE-200 Memory Information

NPE-150 Memory Information

NPE-100 Memory Information


SDRAM and DRAM Memory Systems Overview


Product Numbers: MEM-NPE-32MB=, MEM-NPE-64MB=, MEM-NPE-128MB=, MEM-SD-NPE-32MB=, MEM-SD-NPE-64MB=, MEM-SD-NPE-128MB=, MEM-SD-NSE-256MB=, MEM-NPE-400-128MB=, MEM-NPE-400-256MB=, MEM-NPE-400-512MB=, NPE-100=, NPE-150=, NPE-175=, NPE-200=, NPE-225=, NPE-300=, NPE-400=, NSE-1=, NPE-G1=, UBR7200-NPE-G1=, NPE-G2=, UBR7200-NPE-G2

The Cisco 7200 series and Cisco uBR7200 series memory systems are part of the network processing engine or network services engine. The network processing engine is available in nine versions: the NPE-100, NPE-150, NPE-175, NPE-200, NPE-225, NPE-300, NPE-400, NPE-G1 and NPE-G2. The network services engine is available in one version, the NSE-1.

The NPE-100, NPE-150, NPE-175, NPE-200, and NPE-300 have reached their end-of-life and are no longer sold, although they are still supported in existing installations. For information about each processor's end-of-life cycle, see the Cisco 7200 Series Routers Bulletins at the following URL:
http://www.cisco.com/en/US/products/hw/routers/ps341/prod_bulletins_list.html.

Note The Cisco uBR7246VXR universal broadband router does not support the NPE-G1 or NPE-G2 processor but must use the UBR7200-NPE-G1or UBR7200-NPE-G2 processor, which contains the bootflash code required to boot the router. Unless otherwise indicated, all references to NPE-G1 or NPE-G2 in this document also refer to the UBR7200-NPE-G1 or UBR7200-NPE-G2 rocessor.


Table 2-1 shows the current network processing engine or network services engine options and restrictions for Cisco 7200 series and Cisco uBR7200 series routers. Table 2-2 shows the network processing engine options for Cisco 7200 series and Cisco uBR7200 series routers that have reached their end-of-life and are no longer sold, but are still supported in existing installations.

Table 2-1 NPE-G2, NPE-G1, NSE-1, NPE-400, or NPE-225 Options for Cisco 7200 Series and
Cisco uBR7200 Series Routers 

Router Platform
NPE-G2
NPE-G1
NSE-1
NPE-400
NPE-225

Cisco 7200 series

         

Cisco 7204VXR, Cisco 7206VXR

Yes

Yes

Yes

Yes

Yes

Cisco 7202, 7204, and 7206

No

No

No

No

Yes

Cisco AS5800

         

Cisco 7206VXR router shelf

No

No

No

Yes

Cisco 7206 router shelf

No

No

No

No

Cisco uBR7200 series

         

Cisco uBR7246VXR

Yes1

Yes2

No

Yes

Yes

Cisco uBR7246

No

No

No

No

Yes

1 The Cisco uBR7246VXR router cannot use the NPE-G2 processor but must use the UBR7200-NPE-G2 processor.

2 The Cisco uBR7246VXR router cannot use the NPE-G1 processor but must use the UBR7200-NPE-G1 processor.


Table 2-2 NPE-300, NPE-200, NPE-175, NPE-150, or NPE-100 Options for Cisco 7200 Series and Cisco uBR7200 Series Routers

Router Platform
NPE-300
NPE-200
NPE-175 1
NPE-150
NPE-100

Cisco 7200 series

         

Cisco 7204VXR, Cisco 7206VXR

Yes

Yes

Yes

Yes

Yes

Cisco 7202, 7204, and 7206

No

Yes

Yes

Yes

Yes

Cisco AS5800

         

Cisco 7206VXR router shelf

Yes

Yes

Cisco 7206 router shelf

No

Yes

Cisco uBR7200 series

         

Cisco uBR7246VXR

Yes

No

No

No

Cisco uBR7246

No

Yes

No

Yes

1 Previous documents stated that the NPE-175 was also supported on the Cisco uBR7200 series routers. Because the NPE-175 has reached its end of life and was never made orderable on the Cisco uBR7200 series routers, it is no longer shown as supported on the Cisco uBR7200 series routers.


The memory systems provide the following functions:

Main memory (DRAM in the NPE-100, NPE-150, and NPE-200; SDRAM in the NPE-175, NPE-225, NPE-300, NPE-400, NSE-1, NPE-G1, and NPE-G2)—Stores the running configuration and routing tables. The Cisco IOS software executes from main memory.

Shared memory—Used for packet buffering by the router's network interfaces.

Flash memory—Stores the boot helper image software. The boot helper image allows you to boot the router when PC cards do not contain a valid system image. It also allows you to boot the router from a network server.

CompactFlash Disks, Flash Disks, or PC cards—Stores the default Cisco IOS software image.

Boot erasable programmable read-only memory (EPROM)—Does power-on diagnostics and initialization; initiates system boot-up based on virtual configuration register. Contains the ROM monitor, which permits you to boot the Cisco IOS image from a CompactFlash Disk, Flask Disk, or PC card if a boot helper image is not present in the Flash memory.

Nonvolatile random-access memory (NVRAM)—Stores the system configuration, environmental monitoring logs, and the virtual configuration register.

Terms and Acronyms

Cache memory—Memory with fast access and small capacity used to temporarily store recently accessed data; found either incorporated into the processor or near it.

DIMM—dual in-line memory module

DRAM—dynamic random-access memory

Instruction and data cache memory—Instructions to the processor, and data on which the instructions work.

Integrated cache—Cache that is built into the processor; sometimes referred to as internal cache. Cache memory physically located outside the processor is not integrated, and is sometimes referred to as external cache.

Primary, secondary, tertiary cache memory—Hierarchical cache memory storage based on the proximity of the cache to the core of the processor. Primary cache is closest to the processor core and has the fastest access. Secondary cache has slower access than primary cache, but faster access than tertiary cache.

OTP—one time programmable

RAM—random-access memory

RISC—reduced instruction set computing

ROM—read-only memory

SIMM—single in-line memory module

SODIMM—small outline dual in-line memory module

SDRAM—synchronous dynamic random-access memory

SDRAM-fixed—SDRAM that is a fixed size or quantity; can be replaced, but not upgraded.

SRAM—static random-access memory

Unified cache—Instruction cache and data cache are combined. For example, a processor may have primary cache with separate instruction and data cache memory, but unified secondary cache.

Network Processing Engine or Network Services Engine Memory Information

Refer to figures and tables for memory location specifications, and configurations for the network processing engine or the network services engine on these pages:

NPE-G2 and UBR7200-NPE-G2 Memory Information

NPE-G1 and UBR7200-NPE-G1 Memory Information

NSE-1 Memory Information

NPE-400 Memory Information

NPE-300 Memory Information

NPE-225 and NPE-175 Memory Information

NPE-200 Memory Information

NPE-150 Memory Information

NPE-100 Memory Information

For removal and installation information, follow the instructions in Chapter 3, "Preparing for Installation" and Chapter 4, "Installing and Removing SDRAM and DRAM."

NPE-G2 and UBR7200-NPE-G2 Memory Information

Use the following figure and tables for information about the NPE-G2 memory location, specifications, and configurations.

Figure 2-1 NPE-G2 and UBR7200-NPE-G2

1

DIMM

   

Table 2-3 NPE-G2 and UBR7200-NPE-G2 Processor and Memory Specifications 

Memory Type
Size
Quantity
Description
Component Location on the NPE-G2 Board

SDRAM

1 GB

1

1-GB DDR SDRAM (DIMM)

S1

Boot ROM

512 KB

1

Reprogrammable Boot ROM for the ROM monitor program

U24

Flash memory
(also known as bootflash)

64 MB

1

Contains the default boot helper (boot loader) image

U19 and U13

NVRAM

2 MB

1

Nonvolatile EPROM for the system configuration file

U17

Primary cache

32 KB (16 KB instruction, 16 KB data)

Motorola Freescale 7448 processor, internal cache

U30

Secondary cache

1 MB

MPC7448 secondary cache

U30


Table 2-4 NPE-G2 SDRAM DIMM Configuration—Configurable Memory Only

Total SDRAM
SDRAM Bank
Quantity
Product Number

1 GB

S1

1-GB DIMM

MEM-NPE-G2-1GB=

2 GB

S1

2-GB DIMM

MEM-NPE-G2-2GB=


NPE-G1 and UBR7200-NPE-G1 Memory Information

Use the following figure and tables for information about the NPE-G1 and UBR7200-NPE-G1 memory location, specifications, and configurations.

Figure 2-2 NPE-G1 and UBR7200-NPE-G1

1

Midplane connectors

6

Boot ROM (U1)

2

Flash memory

7

NVRAM (U7)

3

Temperature sensor

8

SODIMM 2 (J4)

4

BCM 1250 processor (U22)

9

Temperature sensor

5

Keying post

10

SODIMM 1 (J3)


Table 2-5 NPE-G1 and UBR7200-NPE-G1 Processor and Memory Specifications

Memory Type
Size
Quantity
Description
Component Location on the NPE-G1 Board

SDRAM

128MB, 256MB,
512 MB

2

128-MB, 256-MB, or 512-MB SODIMMs—Requires two SODIMMs of the same size to create the total memory size of 256 MB, 512 MB, or 1024 MB (see Table 2-6)

J3 and J4

Boot ROM

512 KB

1

Reprogrammable Boot ROM for the ROM monitor program

U1

Flash memory

16 MB

1

Contains the default boot helper (boot loader) image1

U25 and U26

NVRAM

512 KB

1

Nonvolatile EPROM for the system configuration file

U7

Primary cache

32 KB (16 KB instruction, 16 KB data)

BCM 1250 processor internal cache

U22

Secondary cache

512 KB

BCM 1250 system unified, internal cache

U22

1 The NPE-G1 and UBR7200-NPE-G1 processors contain different boothelper images to support the Cisco 7200 series and Cisco uBR7200 series routers, respectively.


Table 2-6 NPE-G1 and UBR7200-NPE-G1 SDRAM SODIMM—Configurable Memory Only

Total SDRAM
Bank 1
Quantity
Product Number

256 MB (default)

J3 and J4

2 128-MB SODIMMs

MEM-NPE-G1-256MB

512 MB

J3 and J4

2 256-MB SODIMMs

MEM-NPE-G1-512MB

1 GB

J3 and J4

2 512-MB SODIMMs

MEM-NPE-G1-1GB

1 The same-sized SODIMM must be installed in each bank.


NSE-1 Memory Information

Use the following figure and tables for information about the NSE-1 memory location, specifications, and configurations.

Figure 2-3 NSE-1

1

Network controller board

8

Midplane connectors

2

Keying post

9

Boot ROM (U1)

3

System controller

10

Temperature sensor

4

Processor engine board

11

SDRAM DIMM (U15)

5

Captive installation screw

12

Parallel eXpress Forwarding (PXF) processor

6

RM7000 microprocessor

13

Temperature sensor

7

Handle

   

Table 2-7 NSE-1 Processor and Memory Specifications 

Processor
Memory Type
Size
Quantity
Description
Component Location on the NSE-1 Board

RM7000 processor

1

262-MHz RM7000 RISC

U22

PXF processor

1

U34

 

SDRAM

128, 256 MB

1

128- or 256-MB DIMM

U15

 

Boot ROM

512 KB

1

OTP1 ROM for the ROM monitor program

U1

 

Primary cache

16 KB (instruction), 16 KB (data)

RM7000 processor internal cache

U22

 

Secondary cache

256 KB

RM7000 processor internal, unified instruction and data cache

U22

 

Tertiary cache

2 MB (fixed)

RM7000 processor external cache

U7, U9, U12, U14, U17

1 OTP = one time programmable


Table 2-8 NSE-1 SDRAM Configurable Memory

Total SDRAM
SDRAM Bank
Quantity
Product Number

128 MB

U15

1 128-MB DIMM

MEM-SD-NPE-128MB

256 MB

U15

1 256-MB DIMM

MEM-SD-NSE-256MB


NPE-400 Memory Information

Use the following figure and tables for information about the NPE-400 memory location, specifications, and configurations.


Note The NPE-400 uses a single small outline dual in-line memory module (SODIMM).


Figure 2-4 NPE-400

1

Temperature sensor (U31)

7

Midplane connectors

2

Keying post

8

Boot ROM (U7)

3

RM7000 microprocessor

9

Temperature sensor (U6)

4

System controller

10

SODIMM (J1)

5

Captive installation screw

11

Standoff and screw

6

Handle

   

Table 2-9 NPE-400 Processor and Memory Specifications 

Memory Type
Size
Quantity
Description
Component Location on the NPE-400 Board

SDRAM-configurable

128, 256, or
512 MB

1

128-, 256-, or 512-MB SODIMM

J1

Boot ROM

512 KB

1

OTP ROM for the ROM monitor program

U7

Primary cache

16 KB (instruction), 16 KB (data)

RM7000 processor integrated cache

U38

Secondary cache

256 KB (fixed)

RM7000 processor unified, internal cache

U38

Tertiary cache

4 MB (fixed)

RM7000 processor external cache

U2, U26, U27, U28, U37


Table 2-10 NPE-400 SDRAM Configurable Memory

Total SDRAM
Bank 1
Quantity
Product Number

128 MB

J1

1 128-MB SODIMM

MEM-NPE-400-128MB

256 MB

J1

1 256-MB SODIMM

MEM-NPE-400-256MB

512 MB

J1

1 512-MB SODIMM

MEM-NPE-400-512MB


NPE-300 Memory Information

Use the following figure and tables for information about the NPE-300 memory location, specifications, and configurations.


Note The NPE-300 contains two banks of SDRAM. Both SDRAM banks are used for all packet memory requirements; however, bank 0 is used exclusively for packet memory and is set at a fixed configuration in the factory.

Bank 1 contains two user-configurable SDRAM slots, DIMM slot 2 and DIMM slot 3. (See Figure 2-5.) Both slots in bank 1 can be populated by DIMMs of different sizes; however, the size of the DIMM in slot 2 must be greater than or equal to the size of the DIMM in slot 3, and the size of the DIMM in slot 3 can be zero.


Figure 2-5 NPE-300

1

Midplane connectors

9

RM7000 microprocessor

2

Keying post

10

Temperature sensor (U42)

3

DIMM 3 (U44)

11

Keying post

4

Bank 1 (user configurable)

12

Temperature sensor (U41)

5

DIMM 2 (U45)

13

Boot ROM (U1)

6

Captive installation screw

14

DIMM 0 (U16)

7

Handle

15

Bank 0 (fixed)

8

System controllers

16

U15 (never populated)


Table 2-11 NPE-300 Processor and Memory Specifications 

Processor
Memory Type
Size
Quantity
Description
Component Location on the NPE-300 Board

RM7000

1

262-MHz RM7000 RISC

U49

 

Fixed SDRAM

32-MB

1

32- MB DIMM

Bank 01 : U16

 

Configurable SDRAM

32 to 256 MB

1 configurable bank with 2 SDRAM slots

32-, 64-, 128-, or 256-MB DIMMs (based on maximum SDRAM required)

Bank 1: U45 and U44

 

Boot ROM

512 KB

1

OTP2 ROM for the ROM monitor program

Socket U13

 

Primary cache

16 KB (instruction), 16 KB (data)

RM7000 processor internal cache

U49

 

Secondary cache

256 KB
(unified instruction and data)

RM7000 processor unified, internal cache

U49

 

Tertiary cache

2 MB (fixed)

RM7000 processor external cache

U7, U8, U9, U10, U17

1 Socket U15 is never populated, although it is part of bank 0.

2 OTP = one time programmable

3 Located on the processor engine board


Table 2-12 NPE-300 SDRAM Configurable Memory

Total SDRAM 1
SDRAM Bank 1 2
Quantity
Product Number 3

32 MB4 + 32 MB

U45 (DIMM slot 2 only)

1 32-MB DIMM

MEM-SD-NPE-32MB

32 MB4 + 64 MB

U45 and U44
or

2 32-MB DIMMs
or

MEM-SD-NPE-32MB

 

U45

1 64-MB DIMM

MEM-SD-NPE-64MB

32 MB4 + 128 MB

U45 and U44
or

2 64-MB DIMMs
or

MEM-SD-NPE-64MB

 

U45

1 128-MB DIMM

MEM-SD-NPE-128MB

32 MB4 + 256 MB

U45 and U44
or

2 128-MB DIMMs
or

MEM-SD-NPE-256MB

 

U45

1 256-MB DIMM

MEM-SD-NSE-256MB

1 Refer to the Cisco AS5800 Universal Access Server documentation on Cisco.com for Cisco AS5800 Universal Access Server SDRAM options.

2 There are two user-upgradable SDRAM slots in bank 1. (Bank 0 is used exclusively for packet memory and is set at a fixed configuration in the factory.)

3 These products are also available as SDRAM upgrades. To order an upgrade, add an equal sign (=) after the Product Number, for example, MEM-SD-NPE-128MB=.

4 This 32 MB is fixed memory in SDRAM bank 0.


NPE-225 and NPE-175 Memory Information

Use the following figure and tables for information about the NPE-225 and NPE-175 memory location, specifications, and configurations.

Figure 2-6 NPE-225

1

Network controller board

6

Handle

2

System controller

7

Midplane connectors

3

Processor engine board

8

Boot ROM (U1)

4

Captive installation screw

9

Temperature sensor

5

RM5271 microprocessor

10

SDRAM DIMM (U15)


Figure 2-7 NPE-175

1

Network controller board

6

Handle

2

System controller

7

Midplane connectors

3

Processor engine board

8

Boot ROM (U1)

4

Captive installation screw

9

Temperature sensor

5

RM5270 microprocessor

10

SDRAM DIMM (U15)


Table 2-13 NPE-225 and NPE-175 Processor and Memory Specifications 

Processor
Memory Type
Size
Quantity
Description
Component Location on the NPE-175 and NPE-225 Board

NPE-175 - R5270

1

R5270 200-MHz RISC1

U4

NPE-225 - R5271

1

R5271 262-MHz RISC

U4

 

SDRAM

64, 128, or 256 MB2

1 configurable bank with 1 SDRAM slot

DIMM

U15

 

Boot ROM

512 KB

1

OTP3 ROM for the ROM monitor program

U1

 

Primary cache

16 KB (instruction),
16 KB (data)

R5270 processor internal cache

U4

   

32 KB (instruction),
32 KB (data)

R5271 processor internal cache

U4

 

Secondary cache

2 MB

4 chips, each 512 KB by 8 bits wide

R527x processor unified, external cache

U5, U6, U7, U84

1 RISC = reduced instruction set computing

2 256 MB supported on the NPE-225 processor only

3 OTP = one time programmable

4 Located on the processor engine board


Table 2-14 NPE-225 SDRAM Configurable Memory

Total SDRAM
SDRAM Bank
Quantity
Product Number

64 MB1

U15

1 64-MB DIMM

MEM-SD-NPE-64MB

128 MB

U15

1 128-MB DIMM

MEM-SD-NPE-128MB

256 MB

U15

1 256-MB DIMM

MEM-SD-NSE-256MB

1 The 64-MB memory configuration is not supported on the NPE-225 on a Cisco uBR7200 series router, which requires a minimum of 128 MB memory. The 64-MB memory configuration is supported on the Cisco 7200 series routers, but 128 MB is the minimum recommended memory configuration.


Table 2-15 NPE-175 SDRAM Configurable Memory

Total SDRAM
SDRAM Bank
Quantity
Product Number

64 MB

U15

1 64-MB DIMM

MEM-SD-NPE-64MB

128 MB

U15

1 128-MB DIMM

MEM-SD-NPE-128MB


NPE-200 Memory Information


Note To prevent DRAM errors in the NPE-200and to ensure that your system initializes correctly at startup, DRAM bank 0 (socket U18 and U25, or U11 and U25) must contain no fewer than two SIMMs of the same type. You can also install two SIMMs of the same type in bank 1 (socket U4 and U12, or U42 and U52); however, bank 0 must always contain the two largest SIMMs.


Use the following figure and tables for information about the NPE-200 memory location, specifications, and configurations.

Figure 2-8 NPE-200

1

System controller

7

Midplane connectors

2

R5000 microprocessor

8

Temperature sensor

3

4-MB SRAM (U6, U10, U13, U14, U28, U29, U38, and U39)

9

Boot ROM (U92)

4

Captive installation screw

10

DRAM SIMMs

5

Handle

11

Bank 1

6

Temperature sensor

12

Bank 0


Table 2-16 NPE-200 Processor and Memory Specifications 

Processor
Memory Type
Size
Quantity
Description
Component Location on the NPE-200 Board

R5000

   

1

R5000 200-MHz RISC1

U44

 

DRAM2

32 to 128 MB

2 to 4

16- or 32-MB SIMMs (based on maximum DRAM required)

Bank 0: U11 and U25
Bank 1: U42 and U52

 

SRAM3

4 MB

8

8 chips, each being 512 KB x 8 bits wide

U6, U10, U13, U14, U28, U29, U38, and U39

 

Boot ROM4

256 KB

1

EPROM5 for the ROM monitor program

U92

 

Primary cache

R5000 internal cache

U44

1 RISC = reduced instruction set computing

2 DRAM = dynamic random-access memory

3 SRAM = static random-access memory

4 ROM = read-only memory

5 EPROM = erasable programmable read-only memory


Table 2-17 NPE-200 DRAM Configurable Memory

Total DRAM 1
DRAM Bank 0
Quantity - Bank 0
DRAM Bank 1
Quantity - Bank 1
Product Number

32 MB

U11 and U25

2 16-MB SIMMs

U42 and U52

MEM-NPE-32MB2

64 MB

U11 and U25

2 32-MB SIMMs

U42 and U52

MEM-NPE-64MB2

128 MB

U11 and U25

2 32-MB SIMMs

U42 and U52

2 32-MB SIMMs

MEM-NPE-128MB2

1 Refer to the Cisco AS5800 Universal Access Server documentation listed on Ciso.com for Cisco AS5800 Universal Access Server DRAM options.

2 These products are also available as DRAM upgrades. For example, to upgrade a network processing engine from 32 MB to 64 MB of DRAM, order Product Number MEM-NPE-64MB=.


NPE-150 Memory Information


Note To prevent DRAM errors in the NPE-150 and to ensure that your system initializes correctly at startup, DRAM bank 0 (socket U18 and U25, or U11 and U25) must contain no fewer than two SIMMs of the same type. You can also install two SIMMs of the same type in bank 1 (socket U4 and U12, or U42 and U52); however, bank 0 must always contain the two largest SIMMs.


Use the following figure and tables for information about the NPE-150 memory location, specifications, and configurations.

Figure 2-9 NPE-150

1

System controller

7

Midplane connectors

2

R4700 microprocessor

8

Temperature sensor

3

1-MB SRAM (U700 through U703,
U800 through U803)

9

DRAM SIMMs

4

Captive installation screw

10

Bank 1

5

Handle

11

Bank 0

6

Temperature sensor

   

Table 2-18 NPE-150 Processor and Memory Specifications

Processor
Memory Type
Size
Quantity
Description
Component Location on the NPE-150 Board

R4700

   

1

R4700 150-MHz RISC1

U201

 

DRAM2 (Main memory)

32 to 128 MB

2 to 4

16- or 32-MB SIMMs (based on maximum DRAM required)

Bank 0: U18 and U25
Bank 1: U4 and U12

 

SRAM3

1 MB

8

8 chips, each being 128 KB x 9 bits wide

U700 through U703
U800 through U803

 

Primary cache

R4700 internal cache

U201

 

Secondary cache

512 KB

4

R4700 unified, external cache

U2, U10, U14, and U26

1 RISC = reduced instruction set computing

2 DRAM = dynamic random-access memory

3 SRAM = static random-access memory


Table 2-19 NPE-150 DRAM Configurable Memory

Total DRAM 1
DRAM Bank 0
Quantity - Bank 0
DRAM Bank 1
Quantity - Bank 1
Product Number 2

32 MB

U18 and U25

2 16-MB SIMMs

U4 and U12

MEM-NPE-32MB

64 MB

U18 and U25

2 32-MB SIMMs

U4 and U12

MEM-NPE-64MB2

128 MB

U18 and U25

2 32-MB SIMMs

U4 and U12

2 32-MB SIMMs

MEM-NPE-128MB

1 Refer to the Cisco AS5800 Universal Access Server documentation listed on Cisco.co m for Cisco AS5800 Universal Access Server DRAM options.

2 These products are also available as DRAM upgrades. For example, to upgrade a network processing engine from 32 MB to 64 MB of DRAM, order Product Number MEM-NPE-64MB=.


NPE-100 Memory Information


Note To prevent DRAM errors in the NPE-100, and to ensure that your system initializes correctly at startup, DRAM bank 0 (socket U18 and U25, or U11 and U25) must contain no fewer than two SIMMs of the same type. You can also install two SIMMs of the same type in bank 1 (socket U4 and U12, or U42 and U52); however, bank 0 must always contain the two largest SIMMs.


Use the following figure and tables for information about the NPE-100 memory location, specifications, and configurations.

Figure 2-10 NPE-100

1

System controller

6

Midplane connectors

2

R4700 microprocessor

7

Temperature sensor

3

Captive installation screw

8

DRAM SIMMs

4

Handle

9

Bank 1

5

Temperature sensor

10

Bank 0


Table 2-20 NPE-100 Processor and Memory Specifications 

Processor
Memory Type
Size
Quantity
Description
Component Location on the NPE-100 Board

R4700

   

1

R4700 150-MHz RISC1

U201

 

DRAM2

32 to 128 MB

2 to 4

16- or 32-MB SIMMs (based on maximum DRAM required)

Bank 0: U18 and U25

Bank 1: U4 and U12

 

Primary cache

R4700 internal cache

U201

 

Secondary cache

512 KB

4

R4700 unified, external cache

U2, U10, U14, and U26

1 RISC = reduced instruction set computing

2 DRAM = dynamic random-access memory


Table 2-21 NPE-100 DRAM Configurable Memory

Total DRAM 1
DRAM Bank 0
Quantity - Bank 0
DRAM Bank 1
Quantity - Bank 1

Product Number2

32 MB

U18 and U25

2 16-MB SIMMs

U4 and U12

MEM-NPE-32MB

64 MB

U18 and U25

2 32-MB SIMMs

U4 and U12

MEM-NPE-64MB

128 MB

U18 and U25

2 32-MB SIMMs

U4 and U12

2 32-MB SIMMs

MEM-NPE-128MB2

1 Refer to the Cisco AS5800 Universal Access Server documentation listed on Cisco.con for Cisco AS5800 Universal Access Server DRAM options.

2 These products are also available as DRAM upgrades. For example, to upgrade a network processing engine from 32 MB to 64 MB of DRAM, order Product Number MEM-NPE-64MB=.