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Case fans run full speed when MB temp is above 51 C

post #1 of 5
Thread Starter 
Hi everyone!

My problem is that when motherboard temp (PCH or chipset temp I think) goes above 50-51°C, the case fans starts to run full speed immediately, and it's noisy. I read that my MB chipset (Intel Z97) - and usually MB chipsets - can handle much higher temps than 50°C.

So how can I set this temp threshold higher? Or what else can be the solution?

I set fan speeds to manual in the BIOS, finetuned everything, and it works well balanced until MB temp reaches 50 or 51°C.

I have a good airflow case (CM 690) and a lot of good fans.

Thanks for the help!
post #2 of 5
Quote:
Originally Posted by RudiSZT3 View Post

Hi everyone!

My problem is that when motherboard temp (PCH or chipset temp I think) goes above 50-51°C, the case fans starts to run full speed immediately, and it's noisy. I read that my MB chipset (Intel Z97) - and usually MB chipsets - can handle much higher temps than 50°C.

So how can I set this temp threshold higher? Or what else can be the solution?

I set fan speeds to manual in the BIOS, finetuned everything, and it works well balanced until MB temp reaches 50 or 51°C.

I have a good airflow case (CM 690) and a lot of good fans.

Thanks for the help!

You need to set the fan curve higher. What mobo is it?
 
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intel i5 750 Lynnfield Gigabyte GA-P55-USB3 ASUS Strix GTX 960 G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin... 
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Crucial BX100 SSD 500GB EKWB EK-KIT L120 Corsair SP120 Koolance 2x140mm Radiator HX-CU1402V 
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AMD Phenom 9750 ASUS M3A78-CM PNY XLR8 GTX 460 Corsair XMS2 (4 x 1GB) 
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Hitachi 5K500 Silenx 92mm EFFIZIO Corsair SP 120 Red LED Antec 500watt 
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Bykski CPU-XPR-A High Performance Acrylic Nicke... EKWB Acrylic Nickel GPU Block Monsoon MMRS Reservoir Bykski BY-PUMP-XPH-PA Water Cooling Pump 
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Koolance 240 30 FPI Radiator Magicool 280 14 FPI Radiator Bitfenix Spectre PWM 120mm Fan ML140 140mm PWM Premium Magnetic Levitation Fan 
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post #3 of 5
what mobo? might just be a setting in BIOS. kinda strange since most BIOS control using CPU temp rather then PCH temp. i had to specify in BIOS for a fan to read from PCH instead of CPU on my mobo. (maximus VIII hero) most mobo i'm aware of default to CPU temp rather then mobo or PCH temp.
post #4 of 5
Thread Starter 
I solved the problem. I installed one of the MOBO apps, called Software Information Viewer. It has a fan controller function, where I can graphically finetune the fans speed to the temperatures.
Actually my MOBO is a Gigabyte Z97 D3H.
Thank you for the answers!
post #5 of 5
ahh cool.

it's unusual for a board to come from the factory using PCH temp sensor. was the board bought 2nd hand? typically you only use PCH temp if you are using it to control the intake fan speed of the fan directly supplying the GPU that has an internal exhaust cooler since the heat exhausted from the GPU cooler blows directly onto the PCH heatsink biggrin.gif but most mobo come from the factory default onto the CPU temp.
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