Cant get my first PCI-E card to work

[serlex]

Bought a second hand 7900gt (came alone) then bought 6pin power cable and VGA to DVI convertor (for the monitor)

No luck geting it to work
Motherboard: Click here
480W PSU

have I missed something?

EDit: oops :d

 

[jonislost]

Do you mean PCI-E? Don't think theres a PCI version...?

Whats actually happening? Does anything display on screen at all? Does the fan on the card spin up?

 

[Amidar]

Have you gone into the bios & turned the onboard graphics off? or set your primary graphics to pcie instead of onboard?

 

[serlex]

the fans spin, blank screen. Few stupid questions

Does it matter where i can connect the monitor DV1 or DV2?
I got onboard card, do i need to disable it?

EDIT: i will try disable now, cant you do it through Device Manager?

 

[serlex]

Thank you, it was the onboard card.

 

[serlex]

sorry to bring this back, straight away nvidia software is telling me not enough power, so settings are lowered to prevent damaging hardware.

Now, I got a 480W Thermaltake PSU Click here with
Motherboard
1 x gfx card
1 x HD 80GB IDE

is there a setting i missed or a mistake by me? or do I need a need psu?