PC only boots sometimes - please help

[SR2502]

Hi guys,

 

I helped my friend install a new GPU and PSU a few days ago. Tested it out everything turned on and played a game for 20 minutes to make sure all was in working order. The next day he told me it didn't turn on but then found a tip on the Internet saying to remove the CMOS battery for 10 seconds then put it back in and try again. This did work and he was playing games on it yesterday all day but when he tried to turn it on again this morning it was not powering up again.

 

Could anyone please help and maybe give me an indication where to start with this I'm not extremely technical but I have built PCs before and never ran into this problem.

 

SYSTEM:

-Intel core i5-9600k

-16gb corsair vengeance memory

-Nvidia RTX 2070 super

-Seasonic core 650w power supply

-MSI Z390-A PRO motherboard

 

Thanks in advance.

[WillYV]

Did you try doing the battery thing?

[SR2502]

2 minutes ago, WillYV said:

Did you try doing the battery thing?

He just told me that he reseated all the PSU connections and it's now turned on again, it just seems to be in the morning when it's been off for a while it won't turn back on.