PC shuts down after running for a few minutes

[Camp Freddy]

I recently performed a major update to my PC and replaced the motherboard, graphics card, CPU/Cooler and PSU.

I installed everything according to the usual instructions and booted up my PC. However, when the PC is upright, it will boot up and run for a few minutes before abruptly shutting down. However, when I lay the case on its side, it'll run indefinitely.

My only two guesses thus far are that there's a short somewhere that's somehow causing the shut down or that the new CPU cooler isn't seated correctly and when I stand the case upright, there's not enough contact with the CPU to do the job.

The upgrade went smoothly apart from the CPU cooler that I though was unnecessarily difficult to install.

I don't know how relevant my specs are here but here's what I've upgraded to:

Intel Core 2 Quad 9450
600W Trend PSU
Asus P5Q Pro Turbo motherboard
Palit GTX 275 GeForce graphics card
Arctic Cooling freezer 7 Pro cooler

I could run the PC on its side, but I'd rather find the issue as it's taking up all the space below my desk and I don't want whatever issue to actually do some long term damage to the PC.

Do you guys have any ideas or solutions to my problem?

 

[rowannew]

ive had a problem with the pc not booting before and it turned out it was a short. id reccomend you:
reseat cooler and reapply thermal compund if needed
build the pc out of the case incase it is a short.

hope you find out the problem soon


ps welcome to the forums as i see this is ure first post

 

[Franksi]

have you monitored your temps in case it is the cooler? Can only agree with the post above - build it up outside your case and give it a whirl

 

[kingnoob]

depending on the cooler u have it could be its top heavy and not connected propally with the rong amount of past on it corsing it to overheat wile upright seeings how gravity is a pain like that >.<