Can 5.28 volts from power supply overheat p-4

January 18, 2011 at 20:20:35
Specs: Windows XP, Prescott p-4 3.4 ghz
Just this week, my 3.4 Ghz p-4 computer died without warning. The computer does not even finish booting now. I was able to get it into bios and discovered the cpu reaching 78c (in less than a minute!) before the system freezes. I tested the power supply and found everything normal except for the +5 volts dc which is out of range at 5.28 volts. could the power supply be causing the sudden heating? Why does the computer not shut down? The CPU heat sink gets very hot in less than a minute. This computer has had no problems since my new mother board 2 years ago. motherboard is a GA-8ipe1000 pro rev.1, 2 gig ram.Windows xp home edition. It appears to be booting normally , sometimes even reaching log in before it freezes and the video card stops and keyboard locks up.

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#1
January 18, 2011 at 21:01:11
Fins free of dust? Did you visually check that the CPU fan is spinning at it's apparent normal speed at start up (that is a hot CPU normally, if the fan is not working properly, it can heat fast)?
The 5.28V does sound a little high for normal, But I am not sure if it is enough out, but certainly very suspect. Someone will be along shortly who can confirm this I am sure (I have never had the need to take readings on these yet).

You have to be a little bit crazy to keep you from going insane.


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#2
January 19, 2011 at 02:37:19
Max +5.25 but +5.28 is fine plus +12v rail is the one that supply power to the cpu. Clean the dust from heatsink and apply new thermal paste.

We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.


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#3
January 19, 2011 at 04:54:15
You CPU is not fried & you're +5v is OK. Clean your system of dirt/dust, remove the heatsink & thoroughly clean it (& the top on CPU), then apply a fresh dab of paste. Here's the instructions:

http://www.arcticsilver.com/pdf/app...


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#4
January 19, 2011 at 17:00:40
Thanks for the link, I will apply paste as soon as I get some. :)

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#5
January 20, 2011 at 05:23:11
"I will apply paste as soon as I get some"

Go to Radio Shack & buy their "heatsink grease" for $3.

http://www.radioshack.com/product/i...


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