New build( no input to monitor)

MakerPower4

Honorable
Mar 20, 2013
3
0
10,510
New build worked fine for 2 months. Then CPU light came on and replaced MOBO, when mobo arrived i assembled and then no input to monitor. I tried differerent video card, ram, replaced the CPU, replaced the mobo again. I took it to a repair place and they didnt know what was wrong and said it was the mobo probably. I have tried everything I can think of.
 

MakerPower4

Honorable
Mar 20, 2013
3
0
10,510


Evga gtx 5670 video card
corsair tx650 psu
asus m599x evo mobo
amd fx 8150 cpu
asus monitor
kingsont hyper x ddrs 8gb ram


not over clocking. The mobo had a the cpu led light up is the only error i got. when this happened no signal would go to the monitor.
everything beeps just as before when it was working flawlessly
 
sounds like the 4/8 pin pci power plug not seated or the ps power output to that line has gone bad. the cpu error light will come on if the cpu stuck in reset mode. I would try another ps. if nothing changes..take the mb out of the case and bread board it with only the onboard video if it has it and one dimm. also check on the mb the bios rev lable..make sure it up to date to where it post your cpu. sometime replacment mb have older bios and wont post.
 

MakerPower4

Honorable
Mar 20, 2013
3
0
10,510


I dont have an onboard video. Im guessing i need to try to replace the PCI cable, bc that may be what it its or a faulty power supply. I took it to a PC place and they couldnt find what was wrong with it. I just dont understand why they wouldnt check for the PSU.