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Critical error, black screen and fans running full speed on boot!

Last response: in Systems
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May 3, 2013 1:20:21 PM

Hey guys, I'm pretty new to the art of PC building so it's probably something really obvious but I just can seem to work it out.

Recently I did a few upgrades. I got a XFX Radeon 6790 refurb and 2×4gb g.skill cards, installed them and every thing was fine after a few days heavy use. However, last night while playing BioShock Infinite my PC suddenly when to a black screen, the monitor switched off and the graphics card fan started running at full speed. I gave it a rest and came back later to try it again. This time it did it again when I was just in chrome. Now after a night of no use when I turn it on it makes a strange beep, the monitor doesn't wake and after a little while the fans speed up again. I have had no issues with the gfx card for the past week or so but the new RAM I only put in a few days ago.

If anyone can shed any light on what it might be or what needs upgrading it would be treaty appreciated.
May 3, 2013 1:22:11 PM

What PSU do you have?

What are your GPU and CPU temps under full load.

Rum MEMTEST for 3 or more passes to test the RAM.
May 3, 2013 2:12:38 PM

tiny voices said:
What PSU do you have?

What are your GPU and CPU temps under full load.

Rum MEMTEST for 3 or more passes to test the RAM.


PSU is a 520w Corsair. Model number CMPSU-520HX

Not sure how I'm going to run MEMTEST if I can even boot into BIOS.
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May 3, 2013 2:16:32 PM

Remove the GPU and see if it boots.
May 3, 2013 3:25:22 PM

Ok I'll try that when I finish work. Could it been that something new isn't compatible with my current system? PSU not big enough? New Mobo?
May 3, 2013 3:29:35 PM

The PSU should be fine.

What are the specs of the rest of the system?
May 3, 2013 4:19:52 PM

tiny voices said:
The PSU should be fine.

What are the specs of the rest of the system?


Processors a 3 year old i5. Not sure what the motherboard is, think its some Asus.
May 3, 2013 11:36:56 PM

Just swapped the new hardware with the old ones they replaced and had exactly the same problem. Also noticed that when my old gfx card was in, I could hear the fans getting progressively faster.
July 21, 2013 2:03:28 AM

simple & easy solution go to the graphic card site & check what your graphic card needs when it is used & also check your motherboard site and compare with the data that you have 'bout the graphic card & motherboard.THIS HEIPS A LOT & TIMELESS CONSUMING.
!