Bad Mobo? Plz help!

[smileysays]

Heya my friend ordered alll the parts for his new PC, and i built it all today. Went to start it up first time and black screen, no output from vid. card...tried card in another computer and it worked fine...The card was getting power (i also tried another card in the same slot, no video) but i think the pci-e x16 slot was bad or just the mobo in general...Does it seem like the mobo is whats at fault here? Everything else works fine, cept no picture, or no beeps...the mobo is a gigabyte ga-p35-ds3l s series. We got a geforce 8800gts card in with 4gig of DDR2 pc2 6400 (4sticks) and a lga775 core2 duo e6850 3gig. Any help would be appreciated!

 

[darksideleader]

what power supply u got?

 

[nerdygeek]

Try booting without the ram. And see if you get the bios. If that doesn't work uninstall everything and only install the bare esentials you need to boot the bios so no CDrom or anything like that and see what happens

 

[smileysays]

thats what someone else said, so i will try that..its a ocz gamestream 600w with i guess 18A on each 12v rail or whatever...but i did unplug most things and got a real loud beeping noise accompanied by it powering on and off, and it was really loud, so now imma try to jus boot with the cpu, psu, cooler, and case and see what happens

 

[veg1992]

EDIt: Delete please.. wrong place.. stupid tabbed posting:

 

[phucng_10]

What's happening here is your video card isn't working?

 

[smileysays]

nah the vid card works in a other PC, i unplugged everything except the CPU power, mobo power, and the case connections and it flashes on and off with no beeping whatsoever, and there isnt any ram in it so it should be beeping because the lack of ram. We just trying to figure out if we need 2 order a new mobo or not. Thanks!
-But yea the problem is a lack of video output when it wasnt flashing on and off, but now it is flashing on and off and on and off and so on lol..No beeping whatsoever, and the power button wont work to shut it off.