I have been using a 3.2mhz Intel Processor and a Asus P4C800-E deluxe mobo for about a year now, last night when I turned on my system It would boot up and shut right off, after the memory test completed. I tried the power button again, but the same thing continued, no warning or anything just shut off. So I thought it might be a bad PSU so I bought a new more powerful one. Installed it and the same thing happened. I took off the fan to my processor and it looked like the heatsink melted a lil bit on it. I cleaned it up and tried it again, same result. the board and chip is less than a year old so it should still be covered under warranty. When I tried turning on the system without the processor it turned on and stayed on but obviously nothing happened because there wasn't a processor installed. Any suggestions?
Update: Ok I spoke to a Tech @ intel, he told me that if it was a defective chip that I wouldn't get any display and nothing would happen. He suggested it could be my memory, Well I will check into that tonite.
<P ID="edit"><FONT SIZE=-1><EM>Edited by teezee1000 on 10/17/05 12:13 PM.</EM></FONT></P>
In order to actually melt the heat sink, it would take much heat than the CPU could endure for a long perion. What he probably sees is the thermal compound, and not actually the heat sink. And melted compound is perfectly normal and should even happen to ensure good heat transfer. To melt the heatsink, the CPU should hold an even higher temperature than the melting point of the material that the sink is made of for a certain periond of time too.. this should create a big hole in the motherboard underneath the cpu.
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Good idea Pat. It's suprising how often people forget other components can short out.
Since secondary drives, and add-in cards are tested after ram, a short in one of those would have the same results as listed.
Yea I tried clearing the CMOS last night still the same reaction, Then I thought of something, the center of the fan was covered in a pasty type film. So I scraped it off and tried it again....voila, it worked It seems the processor needs to be in constant contact with the copper plate of the fan to work. Now I need a OEM clamp to hold the fan in place. I broke the original clamp trying to get the fan off the first time. Thanks for all your help.
Stock HSFs usually come with it already applied. Is the computer on right now? If it is and you don't have the paste applied, then I would be seriously concerned. Prescotts are not known for running cool...
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Usually when it shuts off like that there is some kind of heat issue or hardware issue. If it was the RAM it wouldn't shutoff you would be experiencing a lot of freezes and lockups. The fact the intel guy was telling you it was the RAM was just giving you a run around. He didn't wanna deal with it.
On the side note good work on the trouble shooting!
Got similar symptoms with a different Asus model here, it's a bad capacitor on this board (at least one). And the visual signs of this capacitor being bad are...not very visable, I actually had to look several times to spot it.
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