to isolate thermal factor on this, open up the case and point an electric fan to it, power on your system and observe if same problem would appear, check also the test report for your motherboard and make sure that all components are supported, this can also contribute to system instability.

One more thing, sometimes we are not aware that we have not properly installed the heatsing-fan you can also verify this, see to it that the heatsink properly and firmly touches the CPU die.

Let us know any development.

Have you thought about mabye the power supply is not big enough for all of your components? I had a old gateway that I decided to stick a 9800 pro in, and I got constant restarts. I finally found out that the power supply was only a 160 watt. I upgraded it, and it worked fine.

Ok I have built a new machine expecting to use the old PSU the specs are as follows:



MOBO: GIGABYTE S-series GA-MA790FX-DS5



PSU: JGE ATX 500W P4-12V (rails are unknown please let me know how to tell the rails and ill gladly post them)



Processor: AMD Athlon64 X2 (skt AM2)



Media Drives: 2 dvd drives (IDE), dynex internal USB multi media card reader



Video card/s: 2 ATI Diamond HD 3870's (tryed to run both first in crossfire than only one)

HDD's: 2 segate 500GB sata HDD's



Misc: TV tuner card (PCI), total of about 7 fans (tho all were not plugged in when I attempted to boot), LCD screen



Problem:

The problem occures durring boot up I attempt to se my BIOS settings and the system shuts down I was told this sounds like a heat issue in wich case the cpu fan is working as is the PSU fan my question is is it posible to add too much thermal paste to the CPU to cause an overheating issue?



The reason for this question is the fact that I had to remove the heat sink in order to install an LCD screen (that arrived later after the fact I had already clipped the CPU to the board and heat sink) I applyed a small amount (or in my opinion a small amount) of artic silver 5 to re seal the heatsink and processor (moral of this story is don't be in a hurry to get ure new machine up and running or you might mess up)



Is it possible that my old PSU is just simply too weak to power this set-up?



Any thoughts or ideas would be awsome I already tryed to run only 1 PCI-E card but that still didnt seem to make any diffrence



I would like to get to the bottom of this ASAP as I am excited to get this machine up and running thank you for ure time and for reading this post

Any other questions please feel free to ask



-reply by korn16ftl

system shutdown after 50min
New System Shuts Down After Running About 1 Minute

Hi,
I too have got system shutdown problem, but it is initiated when I run command prompt, otherwise my pc will run fine.

Any suggestions if this is caused by some trojan/virus.

Pleae help

-question by vinay

My Solution
New System Shuts Down After Running About 1 Minute

My PC was shutting down and not indicating overheating (though it was overheating cause it happened a lot more when playing video)

SOLUTION:

Remove CPU cooling fan and heatsink
Remove and reinstall CPU
Reapply thermal compound
Reinstall CPU cooler

My Amd Socket A needed reseating, and is sensitive to heatsink placement and fan speed. The Amd Socket A heatsink is a ***** to install with zero clearance unless you remove the Power Supply. Mine needed to be seated perfectly to not overheat.