Have to unplug my computer's chord to get it to boot

[joelfotboll2]

When I boot my pc the fans will give off a loud noise that goes away after a couple of seconds after that I get to a black screen where the only thing i can see is my mouse and some random white dots (could be artifacts?) on the screen. I cant move my mouse and the screen is frozen. If i try turning my pc off using the button on my case it wont work (even tho the LED's of my case are still working). What is causing this problem? Note tham my psu isnt off highest quality so could that be the problem?

PS. I recently overclocked my gpu but i have it overclocked through amd crimson so that my gpu is only overclocked in some games and not at startup.

 

[logainofhades]

What are your full system specs, including PSU?

 

[Long__T123]

either that your gpu is failing or you have a bad psu. try running in igpu if your motherboard has a video port.

 

[joelfotboll2]

What are your full system specs, including PSU?

either that your gpu is failing or you have a bad psu. try running in igpu if your motherboard has a video port.

What is igpu

 

[joelfotboll2]

What are your full system specs, including PSU?

PSU is low quality 400w (can't find the model anywhere)
GPU r7 250 (overclocked in some games by 65 MHz)
CPU fx6300 ( and turbo boost is over locked to 3900 MHz )

 

[logainofhades]

Well if is a low quality one, get rid of it ASAP. Using a low quality PSU, is just asking for trouble. This one is a great unit, for the money.

PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($55.99 @ SuperBiiz)
Total: $55.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-19 09:38 EST-0500


IGPU is your integrated graphics, if you happen to have a board with it.

 

[joelfotboll2]

yeah thats what i tought. i was actually going to upgrade my gpu soon to a r9 390 and with that upgrade my psu aswell (i was actually going to buy exactly the xfx 750W cause the r9 390 needs alot of power and where i live the watts dosnt increase the prices of the psu that much ). the thing is that i will visit some relatives in the US this summer and everything is so much cheaper there.

i will probably buy the xfx 750W now because its not that expensive here in Sweden and just wait with the gpu to when i go to the US.

thanks for your help

 

[logainofhades]

XFX 750w is a good choice. Evga B2 series is good too. Whichever is cheaper, I would go with, as you cannot go wrong either way.