Computer shutdown problems

[belash]

Recently bought some new hardware parts, and when I go to install the OS (XP Pro) the computer shutdowns. I checked the CPU speed in the BIOS and it listed the temp as 77-80C, which seems high and I am guessing is causing the system to shutdown to protect itself. Any ideas on what is wrong?

New parts are:
Intel 3E Ghz Prescott
MSI 865PE Motherboard

Also, I noticed there is a 12V power connector on the MB that the manual lists as power for the CPU. I currently have it hooked up...could that be causing the problem? I tried to boot without it and got no response.

PS The power supply is a Antec 300W that has been rock solid in the past.

 

[Coro Dominicano]

My guess is that the PSU cant handle the new parts, try it with a PSU with more than 350w, also double check that the CPU is properly seated and that the heatsink is properly engaged.

 

[stevty2889]

A 300w PSU, even if it is an Antec, is probably a bit weak for a 3ghz Prescott. Prescotts are known for being power hungry and running warm. 77c-80c is a bit too high, what are you using to cool it? Did you use thermal paste?

 

[belash]

I am using the retail Intel fan, and I checked...the fan is rotating and everything appears to be seated normally. It looks like Intel has some kind of substance already on the heatsink, so no, I did not use any artic silver or other compound.

 

[fibes]

Originally posted by: belash
I am using the retail Intel fan, and I checked...the fan is rotating and everything appears to be seated normally. It looks like Intel has some kind of substance already on the heatsink, so no, I did not use any artic silver or other compound.

Seems like you have a thermal pad on the heatsink. I'm not a big fan of thermal pads. I always scrap them off with a credit card and wipe off the excess residue with rubbing alcohol. Then I apply a thin layer of A.S. thermal paste and resesat the heatsink.