Computer used to boot, now it doesn't

Vinin

Junior Member
May 9, 2006
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So I recently came back from college in New Orleans where I had my computer that I built there running fine. When I get back here to New Jersey however, I plug everything in and when I try to turn it on, it starts up a little and then shuts itself off. I had shipped my computer from NO and had opened it up to check out everything inside. Everything seemed fine, but it still wouldn't stay on. All my fans lit up and everything starts whirring, but then it all just stops after a second, or if I am lucky, it will stop after 15 seconds. My first guess at this would be that the power supply was wrong, so I switched that out, and I am still getting the same problem. If anyone could help me out, that would be great. I will list my specs below.

Note: The computer worked fine in New Orleans using the old PSU.

ASUS A8N-SLI Deluxe Socket 939 Motherboard NVIDIA nForce4 SLI ATX AMD
eVGA 256-P2-N383-BX Geforce 6800 256MB DDR PCI Express x16 Video Card (x2) [SLI] (this isn't even listed anymore, they are just vanilla 6800's)
AMD Athlon 64 3000+ Venice 2000MHz HT Socket 939 Processor Model ADA3000BPBOX
CORSAIR ValueSelect 1GB (2 x 512MB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Unbuffered Dual Channel Kit System Memory Model VS1GBKIT400
NEC DVD Burner Black IDE/ATAPI Model ND-3540A
Western Digital Caviar SE WD2000JS 200GB 7200 RPM SATA 3.0Gb/s Hard Drive (x3 more or less, I have three different HD, but unless they have different power draws, it shouldn't really matter that much)
Antec Performance I P180


Old powersupply
Thermaltake Silent PurePower TT-420AD(DUAL FAN) ATX 420W Power Supply

New Powersupply
Antec TRUEPOWERII TPII-480 BLUE ATX12V 480W Power Supply


This is not a review on parts for a machine I will build. I have already built this machine and do not really care for criticisms on the parts. I would just like to figure out why I am having these start up problems.
 

MagnusTheBrewer

IN MEMORIAM
Jun 19, 2004
24,122
1,594
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Break system down to minimum requirements (MB, Video card, hdd, one stick of ram). Try to boot. If still no go, try other stick of ram. Start eliminating possible bad components. This may require testing the basic components in another machine. Hang in there and welcome. :)