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CPU fans at 100% on S5500BC in "other" chassis

JBern7
Beginner
1,303 Views

Hi,

I recently bought a S5500BC on ebay and its doing its job well. But the fans are allways at 100% and i would prefer a little bit more silence. I have updated my firmware (incl. BIOS) and nothing changed. I found a post about fan speeds in non-intel chassis ( ) but if i look in my BC_BMC.sdr i cannot find 100% aka 64h settings. Does anyone knows what i need to change in my config?

//=========================================================================//

// Chassis Fan Control Domain 1 with profile 6,7 for Minimum

// For Other Chassis (Medium ramp)

// Fan Control Domain Number # 1 (PWM0: Processor1&2 Fan)

//====================================================================//

_SDR_TYPE C0

_SDR_TAG 'OTHER_MR'

_REC_LEN 001F

// Sensor Record Header

00BD // Record ID

51 // SDR Version

C0 // Record Type

1A // Record Length

// Record Body Bytes

570100 // Manufacturer ID

0C // Record Subtype Value (Fan Speed Control SDR Record, rev 2)

// Temperature Fan Control Record

01 // Record Version

01 // Fan Control Domain Number # 1 (PWM0: Processor1&2 Fan)

14 // Normal Control Value (14h = PWM 20%)

FF // Boost Control Value (FFh = use boost sub record)

01 // Ramp Step (1=1%)

02 // Scan Rate (2 Cycles)

C0 // Fan Profile Support = 11000000

// Stepwise Linear type Temperature Sensor Sub-record

20 // Sensor Owner ID

20 // Temperature Sensor Number -- (BB Amb)

64 // Temp Sensor failure control Value (64h = PWM 100%)

00 // Sleep Control Value

41 // [7:6]-Supported in S1 (1=yes); [5:3]-Reserved; [2:0]-Control Type (001b=Stepwise linear)

10 // Temperature Info [7]-Reserved; [6]-Domain Maximum=0; [5:3]-Negative Hysteresis=2; [2:0]-Positive Hysteresis=0

//------------------------------------------------------------------//

04 // Count of Temperature/Control Value Pairs (04h=4)

00 // Temperature 1 0c

33 // Control Value 1 (Percentage) (33h = PWM 51%)

14 // Temperature 2 20c

33 // Control Value 2 (Percentage) (33h = PWM 51%)

1E // Temperature 3 30c

33 // Control Value 3 (Percentage) (33h = PWM 51%)

3C // Temperature 4 60c

64 // Control Value 4 (Percentage) (64h = PWM 100%)

Also i am not sure which entries to alter and which not. Would appreciate any help,

SinTh0r4s

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1 Solution
idata
Community Manager
199 Views

Hello,

We regret to inform you that the board you are looking support is end of interactive support (EOIS) so the only source of assistance is our website:

http://www.intel.com/content/www/us/en/support/server-products/server-boards/legacy-server-and-works... Intel® Server Board S5500BC

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1 Reply
idata
Community Manager
200 Views

Hello,

We regret to inform you that the board you are looking support is end of interactive support (EOIS) so the only source of assistance is our website:

http://www.intel.com/content/www/us/en/support/server-products/server-boards/legacy-server-and-works... Intel® Server Board S5500BC

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