PCI Express gfx card stopping PC booting

[pompeymiey]

Hi!

I have a problem after interting my gfx card into the PCI-E slot. The PC passes the POST, then reboots. If I take out the card, the PC has no issues running from the onboard. Almost all of the PC's components have been bought/replaced within the last few weeks after the problem started, apart from the CPU, and the power supply.

The specs are:

MB - Biostar P4M900-M7 SE
Bios - Latest from Biostar as of today
Graphics Card - Novatech/ECS Elitegroup GeForce 8600GT 512MB GDDR3 PCI-E
CPU - Pentium 4 2.8Ghz HT
PSU - ACE 480X 480w atx
Ram - 2 GB OCZ DDR 667
HD - 80GB Fujitsu 80 GB SataII
DVD - generic cheap from novatech
Vista ultimate

Any help would be greatly appreciated

 

[kimsland]

Well as you probably know, they are compatable together (vid and m/b)

I suspect it's faulty pci-e slot (sometimes dust)
Or mounting incorrectly (probably unlikely)
Or power supply (probably this)
Oh, and faulty video card (probably not)

 

[pompeymiey]

The gfx card was previously a 8500GT, and I suspected this to be a problem, so I changed it and no change...

One of my thoughts was the PSU, maybe not enough voltage carried through the 12v rail...

Will try & change the PSU as soon as I can & keep updating.

 

[tweakboy]

Maybe this guy didn't connect the molex straight from PSU to graphics card,, no or nos,,,

 

[kimsland]

nah it sounded like he knew what he was doing
But possible, even I did it once, thankfully the high pitch scream (!) helped me remember, oh this card has its own power lol