How could 600watts not be enough!?!?!?

tRad23

Distinguished
Oct 3, 2008
29
0
18,530
Hey guys, I would be thrilled if someone could solve this problem. I just installed an MSI K9A2 platinum motherboard with a Radeon HD 5750 videocard. For referance, let me say that this mobo has 4 PCI-E x16 2.0 Slots, two of which run 8x, I am also using an ocz gamexstream 600w psu. Anyways I installed the video card in one of the 8x slots and the computer works fine; however, when I put the video card in the 16x slot the computer would turn on for a split second then turn off right away. I put in my old and loud 700w rocketfish psu and it works.... Whats up with that?

MSI K9A2 platinum, AMD 64 X2 5600+ 2.8ghz, 4x1gb DDR2 PC6400, Radeon HD 5750, Soundblaster X-Fi Xtremegamer, DVD-R/W, and SATA2 160gb. two fans and stock cpu cooling. 600w should be fine?!