CPU an not working right

Toony

Honorable
Jul 24, 2012
14
0
10,510
This is my first build and it has been one massive headache after another. Okay at this point I had started the thing up it ran fine. I then today tried to install the GPU and after installing that, the CPU fan does not work right. I can boot up to windows and everything, theres no errors, everything works but I can watch the fan and it's like it tries to spin but can't make it. Other times it does spin (depends on start up, pretty much) and the BIOS monitor shows it going CPU Fan speed 1: 1165 RPM and then N/A and then back. CPU heat starts climb and I shut it off right away.

What is the issues? Why is this happening, what do I do? I am so frustrated now.


Mobo: ASrock B75M 1155 Intel
CPU: Intel 1155 i-3 2120
GPU: Geforce GT 430
PSU: Corsair 430W 80+ Builders series
Case: Coolermaster elite 430

The only change made was the addition of one fan on the case side.

Please, help.
 
check that you did not pull the cpu fan wires off the fan pins or bend them or cut or pinch the wires under the gpu.
for your issues sounds like the power supply 12v line is maxed out with the new gpu. (ps also check that you have the 4/8 pin extra atx power plug connected.)
 


I tried switching the cpu fan to a different fan port and starting it without the GPU. It worked fine. Then I tried again but this time with the GPU. Started slowly, like before where it couldn't seem to get going and then it went and stayed on fine at like 2000rpm. I tried this 5 times. 3 times it started instantly with boot, 2 times it sputtered and then when entering windows or BIOS menus it went full speed. Now what?
 


That's a bit dangerous, you CPU fan could stop spinning any time causing the CPU to overheat, replace the PSU.

Choose a best answer to close this thread.
 


There is no way that me or anyone can know for sure if the problem is with your motherboard or with your PSU.

BUT----> if your fan stops working ONLY when you connect a the GPU then the problem is with your PSU because its either not providing enough wattage or enough amps
 


Well, go and buy a quality PSU fellow.

...just in case you're open to suggestions: ..... http://pcpartpicker.com/part/pc-power--cooling-power-supply-ppcmk3s600

it might be a little bit more expensive then what you thought but that PSU is PURE quality.

Pick a best answer to close this thread