Hey guys I recently bought a bundle from tiger direct Erich included the following:
1. AMD FX8350 processor 4.0 GHz
2. Sabertooth 990 fx r2 motherboard
3. XFX RADEON HD 6870
4. Lsp ultra 550w psu
I post, it works great. Two days later I turn it on and it shuts off after4 seconds. Do it again, same thing. I return the psu and get a 650. Today, a day later, the same thing happened again. The motherboard light is on but every time I start it, it turns back off. Any chance it's the PSU or am I looking at a bigger problem? No beeps from the motherboard btw
Shuts off completely? Considering you have already replaced the PSU, can you stay on BIOS or it shutdowns in there too? If not, I would start by checking all power cables, including your sockets, power lead. Fan cables..
If yes, have you overclocked?