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01/21/2009 at 08:27AM PST, ID: 24070740

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6.6

CPU Smart Fan control for AMI Bios e8400 ECS G31-TM

Asked by lexus in Computer Fans and Cooling, Computer Motherboards

Tags: CPU Smart Fan control for AMI Bios e8400 ECS G31-TM thermal cooling heat sink

In an effort to reduce CPU fan noise in my ECS G31T-M Motherboard (AMI bios v2.59), socket 775 e8400 Intel Core 2 Duo (Not OC), I replaced my very loud Thermaltake with a much quieter Scythe Shuirken SCSK-1000 that supports PWM (Power Width Modulation) adjustable fan speed control. The mobo has a feature called Smart Fan to adjust the CPU fan speed as necessary, however I do not understand the settings. When Smart Fan is disabled speedfan registers the fan at 2200 rpm (full speed and a little loud). When Smart Fan is enabled with the default settings, the fan runs at ~300 rpm regardless of the load. Even with Prime95 running both cores at 100% bringing the cpu temp to 62 degrees doesnt change the fan speed at all. (With the fan at full speed, the temp never reaches above 46) I want a happy medium. I have searched all over the net for the descriptions of the Smart Fan settings without success.

Can you please describe (in simple terms) what each of these controls does and what direction change does what:

Smart Fan Start PWM Value      Default 28      (Range 0 to127)
Smart Fan Start Offset (-)      Default 44      (Range 10 to 127)
CPU Delta T            Default +3      (Range 0 to 15)
Fan 1 Slope PWM Value/1Unit I      Default 5      (Range 1 to 15)
Fan 1 Full Speed Offset (-)      Default 23      (Dependant variable)

In a screen before these settings list a dependant variable under PECI Mode called Offset to TCC Activation Temp that is currently -68.

Thank You.

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20090824-EE-VQP-74 - Hierarchy / EE_QW_3_20080625

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CPU Smart Fan control for AMI Bios e8400 ECS G31-TM

Asked by lexus in Computer Fans and Cooling, Computer Motherboards

Tags: CPU Smart Fan control for AMI Bios e8400 ECS G31-TM thermal cooling heat sink

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