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Octopicake

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I have a AMD Radeon HD 7950 series, and I've had it for about 10 months or so far. It was working great until recently where I fell asleep and woke up to my monitor being in sleep mode or power save mode at least that is what I thought. I couldn't get out of it, so I had to turn off my PC which gave me quite a struggle since it wouldn't turn off but finally did. When I did try to turn it back on it only turned back on for a very very short second then back off, so I reseated the graphics card and the PCI-E chord to it, boots up normally now but still isn't detecting the video card. The fans are still going, I used different monitors and both don't detect it, different chords still doesn't detect it and I have no real way of testing it on another computer since my old one is a prebuilt and can't handle the video card.

Plus the hard drive pretty much just died on the old one. Should I reinstall / update the drive and hope it works? I've tried getting into the boot menu to see if maybe something was changed in the background but it ignores my prompts to get into the MSI Boot menu by pressing F10, I even hit Delete and it wouldn't let me into the bios setup.

I can replace the card, I just need to if there is anything I can do at this moment before I try anything.
 
Right there are two possible answers here.
The PSU may be to blame if it is old.
As they degrade over time and use and become less efficient.
Often they don`t break straight away but power distribution issues creep in like you have.

The second thing is it may of caused the board or the bios to default back to factory settings.
In that case if it did, and the motherboard has its own display output ports for graphics then the monitor cable from the 7950 should be connected to that.
To see if the bios is entered when pressing the selected key to enter the bios.
See if the board defaulted.

But as a rule if it freezes when trying to enter the bios. then it`s related to the Psu or faulty caps on the board going bad. A faulty cap will be domed at the top and fluid will leak from it. if you find this to be the case the only option is to replace the cap or caps to get the board working right or buy a new one.
If not that old, RMA the board it should have at least a years warranty on it.
But test the PSU is not the main culprit as everything feeds of it.
 

Octopicake

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The only problem with the BIOS bit is that I can't access them, nor the Boot Menu no matter how much I try. I press Delete, F11, even Tab and it just ignores my prompts on start up for some reason. I have an MSI Motherboard, and I'm not sure how I can work around this at all. Plus I'm looking at the power distribution on AIDA64 and it seems to be fine so far. http://i.imgur.com/9dkHhlD.png I'm also using the onboard chip set to use my computer at the moment.
 

Octopicake

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Pardon the double posy but how do I check if my BIOS defaulted? I'm looking at the bios boot menu and all I got is uefi built in efi shell, my two hard droves and boot manager and a enter set up option