pci-e video card problems

[Rich88]

i just built a new system
AMD athlon 64 3500+
EPoX nforce4 sLi motherboard (no onboard graphics)
512mb ddr ram
leadtek geforce px7300 gs 256mb turbocache(pci-e video card) monitor will not come on when hooked to it

i put an old pci video card in and the monitor reads it...windows picks up the pci-e card and asked for drivers and i installedbut the monitor still wont come on.....i set initial display in Bios for pci-e and still nothing....help please...

 

[Rich88]

bump please

 

[i_am_a_newbie]

Did you plug in the power cord that goes on the card?

 

[Rich88]

i dont see a place for a power cord.....

 

[i_am_a_newbie]

Sorry, the card must not require one then.

Maybe your PSU isn't powerful enough to run it?

What brand, wattage, and what are the amps on the +12V rail?