- Jul 7, 2008
- 5,558
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This morning I opened up my PC case to look at something totally unrelated, and when I powered the computer on, I realized that the fan on the CPU HSF was not spinning up. Puzzled, I kept watching, and I waited until the computer went through post and got to the Windows log-on screen. Then, finally, I saw the fan start budging, hesitantly.... until it began to spin up quickly to what I assume is normal speed.
That's odd. I shut down the PC, waited a few seconds, and turned it back on. This time the CPU fan spun up immediately, just as it should. No issues.
What's interesting is that I've seen this happen in the past, when I first got this computer. I shrugged it off because it happened only once or twice and then continued to work normally again. It makes me wonder how often this actually happens, because after all, I'm not always looking at the CPU fan in my case when I boot up. For all I know, it could be happening 1/3 of the time and I just don't realize it.
While it appears to be totally random, I'm sure there's gotta be something causing it. After I post this I think I'll do a few informal tests. I'll keep the case panel on it while turning it off and back on again (I can still peek at the CPU through the vent holes on the side). See how often it keeps doing it. I'm pretty sure my CPU fan connector is securely attached to the motherboard, but I can check one more time.
Also, before anyone tells me I'm in danger of overheating, I actually have my BIOS set to automatically shut down the system if the CPU temp reaches 60c, so I'm good. I'm using the stock heatsink but with a different 70mm fan attached to it (it's an AMD Phenom II). The rest of my specs are in my signature. Thanks.
That's odd. I shut down the PC, waited a few seconds, and turned it back on. This time the CPU fan spun up immediately, just as it should. No issues.
What's interesting is that I've seen this happen in the past, when I first got this computer. I shrugged it off because it happened only once or twice and then continued to work normally again. It makes me wonder how often this actually happens, because after all, I'm not always looking at the CPU fan in my case when I boot up. For all I know, it could be happening 1/3 of the time and I just don't realize it.
While it appears to be totally random, I'm sure there's gotta be something causing it. After I post this I think I'll do a few informal tests. I'll keep the case panel on it while turning it off and back on again (I can still peek at the CPU through the vent holes on the side). See how often it keeps doing it. I'm pretty sure my CPU fan connector is securely attached to the motherboard, but I can check one more time.
Also, before anyone tells me I'm in danger of overheating, I actually have my BIOS set to automatically shut down the system if the CPU temp reaches 60c, so I'm good. I'm using the stock heatsink but with a different 70mm fan attached to it (it's an AMD Phenom II). The rest of my specs are in my signature. Thanks.
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