Hello. I've recently built a new system. All was working well until last night when I installed a new GPU. The GPU is an MSI 570gtx. My psu only provided one 12v connector and I attempted to use it. When I realized that he system was not displaying, I pulled it and replaced it with my original HD6670. However now, the cpu fan has power, HDD has power but I do not see any display. I've read many threads and have tried many potential solutions. I guess my questions are, (1) what the heck did I do, (2) is it possible that I may have shorted the board with the GPU and (3) how do I fix this. Thanks in advance. Below are my specs and attempts:
Intel i7 2600K
gSkillz Jigsaw 32GB
PSU Coolmax cu-700b
GPu: HD6670 replaced with MSI 570gtx (this caused the issue)
Try clearing the CMOS (unplug the power cord and remove the CMOS battery for few minutes). Then with only onboard (remove the graphics card) and one RAM stick, see if it does start. Check again all cable connections.
I though it was the PSU, so I bought another one on my way home today; and unfortunately no success. I've tried connecting the monitor via DVI and VGA. I know the cables work because my laptops connect to the monitor with no problem.