brand new computer... don't work. suggestions?

[sharrash]

so, i bought new system, which won't boot up, don't even get through power on tests (sytem got power in - vents and leds started working). i removed all unneneccesary stuff (hdd's, other drives, etc.), took out and connected again all stuff, cause might had bad connection, tried memory with 1 and 2 sticks in different slots, nothing.

system contains:
conroe 6400
sapphire x1900 xt 512 mb
asus p5wdg2 ws
ocz 7200 platinum xtc 2x1gb
OCZ GameXStream 700w
(plus 2x74gb raptors, cd-rom drive, 2x60gb hdd's, wireless network card)

so, i have no idea, which part isn't working and i have no way to test it, as i bought all new parts and i don't have friend, who has computer with similar components.

[ExceededGoku]

you have no post is what you mean? (nothing on screen). If so I would be looking at either your ram or motherboard... but make sure the x1900 pcie connector is in correctly

[nvening]

clear the cmos - often new motherboards need it.

[sharrash]

yes, screen remains black. if videocard fails, i should be hearing beeps, what means hardware failure.

cleared CMOS, didn't help.

my idea was, at first point, motherboard, memory or cpu failure.

[ExceededGoku]

have you got any other ram to test with? This sounds like the ram undervoltage problem tht a lot of other people were having... I think they had to buy cheap ram (like a 256MB module) and install it to boot and then increase the voltage and loosen the timings, I may be wrong however....

[sharrash]

sadly no, i like that idea, this is a littlbe bit higher default voltage ram (2.1v), than usually.