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Strange temperature jump - help? - Page 2

post #11 of 22
How old's the computer, dust could be an issue.

If dust has blocked up the fins on the HS (Dissapator) then it will act like an insulation and retain the CPU's heat, to clean it remove the 4 screw's holding the fan in place and use a small paint brush and a hoover and gently brush the dust off.

If you need any more help just post
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post #12 of 22
I think cokker's on to something with the PSU. Less power running through the system would be a great reason for a fan to run at half the intended RPM, and prevent you from clocking your cpu to something higher than a gig and a bit.

Check as many voltages as you can and compare to normal settings. If you want to be sure, try your PSU in another system, it's an easy part to change. If you really want to be thorough, just individually test each part, PSU, CPU, cooling, mobo, for stability and order.
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post #13 of 22
Thread Starter 
Here's what Asus Probe has to say about voltages:

+12V 12,091
+5V 5,068
+3,3V 3,328
VCore 1,416

If the PSU was not outputting enough power, wouldn't that cause a whole bunch of other issues - malfunctioning hard drives, for a starter? The system works flawlessly, except for the CPU temperature.

I'll try to clean the dissipator (as soon as I figure out how to correctly remove the fan). Dust is a possibility; I've left the case open for months.
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post #14 of 22
Thinking about it if the PSU did blow it would make everything act funny, if you wanna clean the heatsink what i do is

1. Turn off PC and let it cool for 30mins
2. Remove heatsink via the two white tabs, (skt 478)
3. Wipe clean bottom of heatsink
4. Remove fan from heatsink
5. Wash with warm water and a (old) tooth brush
6. Make sure you dry the base (copper part) with towel and leave to dry or dry with a hair dryer, but be carefull the heatsink can get very hot so leave to stand for 30mins
7. Once cool and dry refit with "arctic silver 5" (AS5) and TADA!

Ive done this with all my heatsinks and never had a problem!
    
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post #15 of 22
Quote:
Originally Posted by cokker
Thinking about it if the PSU did blow it would make everything act funny, if you wanna clean the heatsink what i do is

1. Turn off PC and let it cool for 30mins
2. Remove heatsink via the two white tabs, (skt 478)
3. Wipe clean bottom of heatsink
4. Remove fan from heatsink
5. Wash with warm water and a (old) tooth brush
6. Make sure you dry the base (copper part) with towel and leave to dry or dry with a hair dryer, but be carefull the heatsink can get very hot so leave to stand for 30mins
7. Once cool and dry refit with "arctic silver 5" (AS5) and TADA!

Ive done this with all my heatsinks and never had a problem!
That's a very throurgh way cokker but i'll work that's for sure.

It could also be the TIC, when was the last time you applied a new coting of thermal compound to the Processor?
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post #16 of 22
Thread Starter 
New coating? ..you mean it doesn't last forever? I put it when I bought the computer, a bit more than one year ago.

But other computers I have, with similar setups, have been running smoothly for years. Heck, I've got old processors that still work fine after 10+ years. Some machines I've installed in industrial environments work fine after years, and those places are hardware's Vietnam.

Maybe I did something wrong when installing the CPU on the mobo? What could I do that would result in the CPU working for one year and then overheating?
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post #17 of 22
Well it's good practice to replace it every so often but it should last and have no problem's for years.

Have you cleaned the heatsink and fan?, i think that's the problem.
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post #18 of 22
Thread Starter 
Not yet; I can't shutdown right now. I'll be doing it ASAP.

Meanwhile, there's another part of the mystery. Last week, as I mentioned in the original post, the computer powered off and wouldn't power on for some time. It wasn't the BIOS stopping me - the machine did not power on, as if the PSU was gone. After a half hour, everything resumed working (but the overheating issue appeared shortly after that).

Now, I had a cold at the moment and couldn't smell, but another person told me that there was a noticeable smell of burning around the area, at the moment the machine powered off. That worried me at the moment, but since the machine became functional again after a short time, I forgot about it. I can't think of anything that could burn and not cause obvious malfunction.

Is there anything that could burn up and cause those symptoms?
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post #19 of 22
Well it could have been from the PSU does the PSU have any other Fan's except from the one at the back?
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post #20 of 22
Thread Starter 
No, the PSU only has one fan.
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