CPU fan lifespan? Signs of CPU fan dying?

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xStampede

xStampede

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Jun 18, 2013
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Hi, i have 6 years old CPU Intel Core2 Quad CPU Q6600 @ 2.40GHz with this Thermaltake Typhoon heatsink(http://www.legitreviews.com/images/reviews/409/test_system.jpg).

CPU-Z specs: http://valid.canardpc.com/m5ysxx

The CPU has been overclocked for over half othe those 6 years, the machine worked close to 18 hours per day average.

The fan has manual speed control but i noticed that sometimes it has random RPG swings from like 1500 to 1450 when i start new application or something. Is this PSU / Motherboard related or is the fan giving me the sings he is gonna stop working soon?

The hotest CPU core idle's at 44° C, at prolongued load 62° C now in summer, so he is still doing his job. Should i replace this old CPU fan or will it last forever?
 
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C12Friedman
The MTBF for most computer fans is listed between 30,000 and 50,000 hours or, 3.5 - 6 years continual running. You've put about that many hours on the fan but it doesn't seem to me that it's showing it's age. Normally when a fan starts to fail it audibly complains as a first sign (not always though). Your fan is getting up there in time, I'd suggest at least ordering a replacement to have on hand.
Actually, I'd be inclined to worry more about the motherboard's VRM and how it's holding up, the 50rpm sag would seem to me to be coming from the motherboard. The delay of the RPM recovery can indicate if there is something to be concerned about, less than 2 seconds, I wouldn't worry much, any more than that and I'd start looking for failed...
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C12Friedman

C12Friedman

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Jan 25, 2012
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The MTBF for most computer fans is listed between 30,000 and 50,000 hours or, 3.5 - 6 years continual running. You've put about that many hours on the fan but it doesn't seem to me that it's showing it's age. Normally when a fan starts to fail it audibly complains as a first sign (not always though). Your fan is getting up there in time, I'd suggest at least ordering a replacement to have on hand.
Actually, I'd be inclined to worry more about the motherboard's VRM and how it's holding up, the 50rpm sag would seem to me to be coming from the motherboard. The delay of the RPM recovery can indicate if there is something to be concerned about, less than 2 seconds, I wouldn't worry much, any more than that and I'd start looking for failed caps on the motherboard
 
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xStampede

xStampede

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Jun 18, 2013
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I think you are right, the motherboard showed it's limits more times, also i have a random problem that used to happen last summer but then stoped, the windows started gently shutting down if the room temperature changed rapidly, the CPU and all temperatures were showing fine when the shutting down happened most of the time, if i played an PC intensive game it wouldn't shut down cuase the heat would keep steady temperature. I tried changing PSU and HD's but it haven't affected this random happenening so i was suspecting the motherboard.

I'm planing on buying a new CPU + motherboard soon, the PSU 800w Corsair GS800 is still fine and the GPU is ok still. But im not sure what to do with this CPU + motherboard + ddr2 ram.., i think it's still a good PC so i will prefer to keep it working and in good shape. Do you think i can physicaly see motherboard caps failure?
 
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