My PC only boots after I re-seat the RAM. Any suggestion to why this is?

[seanoliverfarrell788]

Hello, Yesterday I did a clean install of Windows 10 (genuine copy) and the pc booted up fine. However the next time I tried to boot up the CPU fan, LEDs and HDD span up but no image was displayed (nor no booting as the speaker did not beep) . I tested all my components (PSU, GPU etc) with no avail.

But when I re-seated the RAM (ie. took it out and back in again) the system booted fine. however the next time I shut down the system would not boot until i re-sat the RAM in which it would.

Bearing in mind before the install I have been running the machine flawlessly for over 12 months with no problems.

Any Suggestions. Thanks

Specs:
CPU: intel core I5 4690K
Mobo: Gigabyte GA z87 HD3
Ram: 8GB DDR3 Ram
GPU: AMD r9 280x
PSU: XFX TS 550w

 

[Tradesman1]

Once booted does the correct day and time show? If not may have a bad CMOS battery. Else might try cleaning the DRAM contacts....another possible is to try the rig using a different PSU