Brand New PC shuts down - URGENT

I bought this PC yesterday, have assembled it, and when I boot it, go into the bios... after about 10 seconds it shuts down, cold.

Here are the specs:

Seagate SATAII NCQ 320GB 7200RPM 16mb Cache
DDR2 Corsair Twin2X (2048MB Kit ) 6400C4 2048Mb (2X1024MB)
XFX GeForce 8800GTX 768MB Dual DVI HDTV SLI PCI Express Video
Asus P5N32-E SLI 775 QuadCore nF680i-SLI 2xPCIEx16 SLIx16 RAID FW 2xLA
Asus 1814BLT-BLK 18xDVDRW SATA, LightScribe,BLACK Retail
Antec P182 Performance One Black ATX Mid Tower - NO PSU
Intel CORE 2 Q6600/2.4Ghz/2x4MB/1066FSB/LGA775/(GOSLACR stepping)
Thermaltake Tough power 850W with PFC cable Management PSU

My previous PC had similar things happen to it and it was on the same powerboard. I replaced the powerboard with a brand new one yet it still happens. Could it be the power point in which the board is getting its power?

Please help, I need this machine operational for contract 3D work by monday!

Thanks.

 

Did you buy it assembled or did you assemble it yourself? If you put it together (or someone else did) it could be a few things.

If it's only running for a few seconds it could be that the heatsink on the cpu is not seated properly. It sounds as though this could be your culprate. The system runs long enough to get into the bios then shuts down. I would suggest checking the heatsink for proper seating asap. Don't start your system too many times or you could fry the cpu!

 

Nice components!

I'd agree with Blackjax, check the heatsink (I once installed a heatsink and left the plastic tape covering the copper plate on, needless to say I got the same problem!)

 

Thanks very much guys, you were both right on the money. One corner of the heatsink anchor was not fastened 100%. In the bios, I quickly jumped over to the temperature monitor and it was at 105 degrees, then it promptly shut down again.

It's now working perfectly.

Thanks a lot for the help, btw, yes I did assemble it myself.

Cheers!

 

Great stuff, enjoy that awesome PC you built!

 

After having that shutdown problem solved, now whenever I have a game running for a while, it will crash to the desktop. There is no consistent error message.

I have also had two bluescreens one of which said BAD_POOL_DATA.

Any ideas anyone?

 

updated my bios, now I get a message on boot saying NTLDR is missing.

There are no USB storage devices plugged in. I have selected the HDD as the first boot device.

It still happens. I can spam F8 on startup and it goes into Boot Menu. I then can select the hard disk with windows on it and it will start normally, however on reboot the same thing happens still.

Strange.

Asus P5N32-E SLI 775 QuadCore nF680i-SLI 2xPCIEx16 SLIx16 RAID FW 2xLA

That's my board.

Any help would be greatly appreciated.

Thanks.

 

It sounds like your boot config is messed up. If it's new, I'd suggest just wiping the drive and reinstalling the OS. Don't install the 8800GTX drivers from the disc, get the internet up and running and simply use the latest ones from the nvidia site instead.