Introduction
This document describes the Unified Computing Server (UCS) C-Series M5 server components relation to Fan Policy and Fan Noise. It is noticed that different configured servers and different server models result in more fan noise when compared.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
The information in this document is based on these software and hardware versions:
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.
Background Information
Pulse Width Modulation (PWM) is the measurement of the average fan speed in percentage (%) of the maximum Revolutions Per Minute (RPMs) for a specific fan model.
Specific components influence the FAN policy for Cisco Servers. If you add new internal hardware, it can change the FAN Policy due to requirements and might result in difference of average fan speed and noise level.
UCS C-Series M5 Server Components Relation to Fan Policy and Fan Noise
How Each Component Influences FAN Policy
| PID |
Name of Card |
Minimum Fan Profile
|
Category |
Release |
C220M5 |
C240M5 |
| UCSC-GPU-7150x2 |
AMD FirePro S7150x2 |
High Power |
3 |
HP |
NA |
Applicable |
| UCSC-PCIE-BD16GF |
Emulex LPe31002 Dual-Port 16G FC HBA |
Balanced |
2 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-BS32GF |
Emulex LPe32000 Single-port 32Gb FC HBA |
Balanced |
2 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-BD32GF |
Emulex LPe32002 Dual-port 32Gb FC HBA |
Balanced |
2 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-IRJ45 |
Intel Ethernet Server Adapter I350-T4 |
Balanced |
2 |
HP |
Applicable |
Applicable |
| N2XX-AIPCI01 |
Intel X520-DA2 10 Gbps 2 port NIC |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-ID10GC |
Intel(R) X550-T2 SagePond 2x10GB 10GBaseT |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-ID40GF |
Intel(R) XL710-QDA2 SpiritFalls 2x40GB QSFP+ |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-ID10GF |
Intel(R) X710-DA2 EagleFountain 2x10GB SFP+ |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-IQ10GF |
Intel(R) X710-DA4 EagleFountain 4x10GB SFP+ |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-IQ10GC |
Cisco(R) Ethernet Converged NIC X710-T4 |
High Power |
3 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-ID25GF |
Cisco(R) Ethernet Converged NIC XXV710-DA2 |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-MLOM-IRJ45 |
Intel(R) I350-mLOM 1 Gbps Network Controller |
Low Power |
1 |
HP |
Applicable |
Applicable |
|
Cisco 12G SAS Modular Raid Controller |
Low Power |
1 |
HP |
Applicable |
NA |
| UCSC-RAID-M5 |
Cisco 12G Modular RAID Controller with 2GB cache |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-SAS-M5 |
Cisco 12G Modular SAS HBA(Max 16 drivers) |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-9400-8E |
Cisco 9400-8E 12G SAS HBA |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-RAID-M5HD |
Cisco 12G Modular RAID Controller with 4GB cache |
Low Power |
1 |
HP |
NA |
Applicable |
| UCSC-SAS-M5 |
Cisco 12G Modular SAS HBA (Max 26 drives) |
Low Power |
1 |
HP |
NA |
Applicable |
| UCSC-GPU-M10 |
Nvidia M10 P2405-070 |
High Power |
3 |
HP |
NA |
Applicable |
| UCSC-GPU-M60 |
Nvidia TESLA M60 |
High Power |
3 |
HP |
NA |
Applicable |
| UCSC-GPU-P100-12G |
Nvidia GP100 PCIe PH400-201 PASSIVE, 250W, FF 3.0, 16GB |
Max Power |
4 |
HP |
NA |
Applicable |
| UCSC-GPU-P100-16G |
Nvidia GP100 PCIe PH400-202 PASSIVE, 250W, FF 3.0, 12GB |
Max Power |
4 |
HP |
NA |
Applicable |
| UCSC-GPU-P4 |
Nvidia P4 (PG414-200), PASSIVE, 75W, 8GB PCIe Card |
High Power |
3 |
HP |
Applicable |
Applicable |
| UCSC-GPU-P40 |
Nvidia P40 (PG610-200), PASSIVE, 250W, FF 3.0, 24GB PCIe Card |
High Power |
3 |
HP |
NA |
Applicable |
| UCSC-GPU-V100 |
NVIDIA V100 SXM2 PG503-203, 300W, 16GB |
High Power |
3 |
HP |
NA |
Applicable |
| UCSC-GPU-V100-32 |
NVIDIA V100 SXM2 PG503-203, 300W, 32GB |
High Power |
3 |
HP |
NA |
Applicable |
| UCSC-PCIE-QD25GF |
Qlogic QL41212H 25GbE Adapter |
High Power |
3 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-QD40GF |
Qlogic QL45412H 40GbE Adapter |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-QD16GF |
Qlogic QLE2692 dual-port 16G FC |
Balanced |
2 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-QD32GF |
Qlogic QLE2742 dual-port 32G FC HBA |
Balanced |
2 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-C40Q-03 |
UCS VIC 1385 40Gb 2 port CNA QSFP+ |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-MLOM-C40Q-03 |
UCS VIC 1387 40Gb 2 port QSFP+ |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-MLOM-C25Q-04 |
Cisco UCS VIC 1457 MLOM |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-PCIE-C25Q-04 |
Cisco UCS VIC 1455 |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-F-H16003 |
Cisco HHHL AIC 1.6TB HGST SN250 NVMe |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-NVME-H32003 |
Cisco HHHL AIC 3.2TB HGST SN260 NVMe |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-NVME-H64003 |
Cisco HHHL AIC 6.4TB HGST SN260 NVMe |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-NVME-H38401 |
Cisco HHHL AIC 3.8TB HGST SN260 NVMe |
Low Power |
1 |
HP |
Applicable |
Applicable |
| UCSC-NVME-H76801 |
Cisco HHHL AIC 7.7TB HGST SN260 NVMe |
Low Power |
1 |
HP |
Applicable |
Applicable |
UCS C-Series Servers support 4 fan policy, Low Power, Balanced, High Power and Maximum Power. Navigate to CIMC UI > Compute > Power Policies in order to find the setting.
Minimum allowable fan speed is a function of server inlet air temperature and applied fan policy.
How to Relate Inlet Temperature with FAN Policy and PWM
|
Inlet Temperature
|
Acoustic Mode Policy
|
Lower Power Policy
|
Balanced Policy
|
High Power Policy
|
Maximum Power Policy
|
|
[C]
|
[PWM %]
|
|
≥
|
5
|
≤
|
21
|
20
|
20
|
30
|
30
|
50
|
|
>
|
21
|
≤
|
23
|
20
|
20
|
30
|
40
|
60
|
|
>
|
23
|
≤
|
25
|
20
|
25
|
30
|
50
|
70
|
|
>
|
25
|
≤
|
27
|
20
|
30
|
40
|
60
|
80
|
|
>
|
27
|
≤
|
29
|
20
|
35
|
50
|
70
|
90
|
|
>
|
29
|
≤
|
31
|
25
|
40
|
60
|
80
|
100
|
|
>
|
31
|
≤
|
33
|
25
|
45
|
70
|
90
|
100
|
|
>
|
33
|
≤
|
35
|
30
|
50
|
80
|
100
|
100
|
|
>
|
35
|
≤
|
37
|
35
|
55
|
80
|
100
|
100
|
|
>
|
37
|
≤
|
39
|
35
|
60
|
80
|
100
|
100
|
|
>
|
39
|
≤
|
41
|
40
|
65
|
80
|
100
|
100
|
|
>
|
41
|
|
|
40
|
70
|
80
|
100
|
100
|
Example: At 23°C inlet air temperature, with a Maximum Power policy applied, the minimum allowable fan speed is 60% Pulse Width Modulation (PWM). A Low Power policy minimum fan speed is 20% PWM at 23°C inlet air temperature .
Related Information
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