COMPUTER WONT POST

Hey everyone... i just built a new pc here is specs

CASE SIGMA ORCA-WB RT

MB GIGABYTE GA-MA78GM-S2H 780G RT

PSU TT | W0070RU 430W RTL

CPU AMD|A64 X2 5200+ 2.7G AM2 65N

MEM 2G|GSkillK F2-6400CL5S-2GBPQ

160G|WD 7K 8M SATA2 WD1600AAJS
DVD BURN LG|GH22LS30 22X LS SATA

all connectors are connected fine except in not sure about the extra 4 pin 12v connector thats tied with the 20 pin connector. i was thinking maybe because its one stick of ram (2gig) everything runs(fans, neon light, dvd drive, hd drive)but no beep and nothing shows up on screen.


REPLY FROM: lunyone
You should have all 24 pins connected to the mobo. The slide out 4 pins is there, in case you only need the older style 20 pin power connection. You will also need the 4 pin CPU power connection to get everything powered up. So just to recap, you'll need the 20+4pin (24 pin together) and the 4 pin CPU power connections to power everything up properly.


I tried that and still the computer would not post. i re-adjusted the cpu and all the cables just incase and now it wont even power on..
is there any more suggestions??