Solved Desktop will not boot up.

June 13, 2011 at 09:19:14
Specs: Windows Vista
My desktop with vista operating system has a high tone beep followed by a low tone beep(this occurs several times) then shuts down. Normally after 5 or 6 times of pressing the start switch(each time the computer is only on for a few seconds) the computer will eventually boot up. After booting up, a message on the monitor is that the computer was shut down because of a thermal problem. The computer is really clean and all fans are working. Temperature monitoring programs I have installed do not indicate any high temperatures. Also BIOS temp is normal. Memory has tested OK. I have unplugged all external hardware, except the monitor and key board. I have checked all intermal wire connections. Could this be a power supply problem?
Please help.

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June 13, 2011 at 09:28:39
✔ Best Answer
The high/low alarm & error message indicate a temperature/overheating problem, why would you think it's something else?

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June 14, 2011 at 09:26:30
Thanks a million for your support. In addition to my previous report, once the computer boots up, everything seems to work OK and will continue to work until I shut it down. You asked why I would think it is something other than a temperature problem. Well, all temperature sensors and BIOS temperature readings are acceptable, at least I think so. With the case open, I can't detect any elevated temperatures. I know this is a poor way to gauge temperature. Is there a way to determine what is over heating without taking it to a repair shop? Thanks again for your help.

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