Black Screen, No BIOS, New GPU and PSU

Andy23798

Reputable
Oct 21, 2014
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I know that this question has been asked a lot but mine seems to be a little different!

Initially I had:
300w PSU
Nvidia GT220
4gb RAM
on a GA-M68M-S2P (rev. 2.3) motherboard.

I then replaced the 300w PSU and GT220 for a 600w corsair PSU and a Nvidia GTX750Ti GPU.
New:
600w PSU
Nvidia GTX 750Ti
4gb RAM
on a GA-M68M-S2P (rev. 2.3) motherboard.

The first time i replaced the parts everything went well and I was able to install the new drivers and the card worked fine the rest of the day. I didn't remove my previous drivers but this didn't seem to cause a problem.
Next day I tried to power on and I got a black screen, no bios, but the fans spin and it sounds like normal start up. I tried replacing the old card and still got nothing but when I put the new card back in i got bios, but it crashed unless i went into safe mode. I deleted all old and new drivers and rebooted but then got another black screen with no bios.
Tried it again next day and started normally with no issues and I installed the drivers for the new card. The day after that back to black screen, no bios. I then tried resetting bios and it started normally, then when i restarted it later back to a black screen.

So basically, what is the issue? I know the card works really well when it wants to but I don't know why i'm getting these intermittent problems.

Thanks
 
Solution
Could be faulty power supply. Make sure you'd plugged in the PCI power connector to the video card. Also, next time it starts up cleanly, install the latest BIOS update for your MB.

That's about all I can guess, however, you haven't tried reverting back to the original PSU to see if your new PSU is faulty. I would do that first. Try with either card.

cirdecus

Distinguished
Could be faulty power supply. Make sure you'd plugged in the PCI power connector to the video card. Also, next time it starts up cleanly, install the latest BIOS update for your MB.

That's about all I can guess, however, you haven't tried reverting back to the original PSU to see if your new PSU is faulty. I would do that first. Try with either card.
 
Solution