GPU or PSU issue

[lg96]

Recently my 4 year old PC has not been booting up even to BIOS. I had previously had problems with my PC completely crashing and requiring a hard reset when playing video games. However, after a bit of playing around with the hardware, I found that removing the graphics card entirely and using the HDMI on my motherboard made Windows boots as normal with nothing wrong.

So my question is has this happened because the GPU is faulty and needs replacing, or because the PSU is faulty and cannot cope with the added stress of a GPU, or is it both, perhaps?

Thank you

 

[CountMike]

Well, you didn't say anything about those actual parts so it's difficult to tell because a GPU can easily take half of power of whole system.

 

[lg96]

Well it's been working fine for 4 years so i didn't think it necessary, but it's a Palit GTX 970 with a CS 650M from Corsair

 

[CountMike]

OK. power wise PSU is enough, can't really drop in power that much so I would suspect GPU.