Newly Built Computer turning off within 5 seconds

March 19, 2012 at 12:42:47
Specs: Windows 7
First off, here are the specs. Everything listed is brand new out of the box:

Motherboard - GIGABYTE GA-970A-UD3 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

CPU - AMD FX 4100 4-Core Processor, 3.6 4 Socket AM3+ FD4100WMGUSBX

GPU - XFX ATI Radeon HD6670 1 GB DDR3 VGA/DVI/HDMI PCI-Express Video Card HD667XZHF3

Memory - Corsair Vengeance 8 GB ( 2 x 4 GB ) DDR3 1600 MHz (PC3 12800) 240-Pin DDR3 Memory Kit for Intel Core i3, i5, i7 and AMD Platforms SDRAM CMZ8GX3M2A1600

PSU - Thermaltake TR2 500W Continuous-Delivery Power Supply ATX12V W0379RU

I put all the parts together outside of the case to make sure everything was working and found no problems. After putting together everything in the case I turned it on and still had no problems, everything was running and I was able to access the Bios and change the boot order. As I was getting ready to install the OS I noticed my disc was too scratched to work. As I'm re-burning the DVD on my other computer I leave the new computer on for about 30 minutes. When I come back the monitor is turned off and nothing happens when I tap buttons on the keyboard. So, I reset the computer and within 3-6 seconds it shuts off. It does pull up the BIOS screen and moves forward as normal before powering off.

I read up and thought that it could be the CPU overheating, so I disassemble the heat sink and notice that the thermal paste on it has melted. Figuring that this might have been the problem I waited a day and started up the computer cold. Still the same problem, although this time it may have stayed on for about 10 seconds.

I'm stumped as to what the problem could be. I was thinking it could be the CPU overheating, but could it really overheat in 10 seconds with the CPU fan working? Another possibility was the PSU, but I wasn't sure seeing as it does turn on for the short amount of time.

Any ideas?

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March 19, 2012 at 13:20:36
The thermal pad is supposed to melt. But since you took off the heatsink to check, you destroyed the pad & will now have to apply paste. That means both the heatsink & CPU must be completely cleaned of all traces of the old material & a fresh dab of thermal paste applied. And it MUST be done correctly using the "middle dot" method:

BTW, none of your links work.

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March 19, 2012 at 14:08:57
Thanks for the link, I'll be sure to reapply thermal paste to the CPU and heatsink, if it doesn't end up being the problem in the end. It would power off even before I unhooked the heatsink to check it out.

*Fixed the links

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March 19, 2012 at 14:37:30
are you getting a post beep or are you getting a series of beeps? Check the switch to be sure it is working correctly as I had this problem before and replaced everything only to find out it was the switch on the tower.

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