Psu not working after long time of no use?

[Kyle_88]

I have an old desktop with an i7 2600k and 8 gigs of gddr3 ram, and a single gigabyte graphics card, and im doing some pretty substantial upgrades to it converting it into a gaming pc, but when I tried booting it all the leds would turn on, the fans would begin to spin and after 3 seconds it would all turn off, it would repeat this 2-3 times before successfully booting and I was just wondering if this was a PSU issue as the computer hasnt been turned on for roughly 7 months. everything is registering in the BIOS correctly and the led on the mobo is displaying its receiving power so before I go and sink too much into upgrading this I wanted to know what was causing this issue?

 

[SirMelon]

I've had that issue in the past and it's often due to issues with the MOBO interfacing with other components. For me it was a driver issue with the GPU, if you want to be safe you can get a new PSU (they're pretty cheap and you may need that extra power to run new components if you add a lot). IMHO it's a fairly reasonable set-up if you wish to play games like CS:GO and Skyrim with reasonable FPS.