graphics artifacts? - 7970m failed

Ok. So i have had this issue and tried so many possible solutions and none have prevailed so maybe i need some confirmation if this is a hardware problem which i now think it is. The problem started on windows 10 which was fully functioning until one day i booted up and the boot screen had all these artifacts on it and it would not get past this screen only freeze there.i then tried safe mode which allowed me to get past this screen and there were also no artifacts i did notice however that the refresh rate had been changed from 60hz to 64hz (not sure if thats worth mentioning) from here i uninstalled the amd drivers via device manager and after a reboot i proceded to remove the catalyst after that the machine booted just fine but still had some issues. after reinstalling the drivers the problem was gone after another restart it cam back so i thought this could possibly be windows 10 not working well with these drivers so i reinstalled win 7,got all my drivers and everything ran fine i even played a game perfectly but yet again after a reboot it would not get past the boot screen the only way it would is if i enabled vgasave.i have no idea on what to do as this is completely random,i have used this machine for years and generally keep it clean of dust etc.please if anyone could lend a hand it would be appreciated. https://imageshack.us/i/pawYlM1Bj - picture of artifacts on boot and missing password bar?

 

If you have one available I'd try an external monitor to see if the issues persist.

 

It seems to me like your drivers are some how being corrupted after the reboot, I'm not sure if faulty hardware can do this... but the artifacts sure make it seem like that is the case.
You could also try booting up on integrated graphics if you haven't done so yet

 

ah sorry i forgot to mention i had tried thst and the problems are the same all the artifacts still show up.

 

i had completely fogotten about my switchable graphics and tried your advice.my intel graphics seem to work fine and i can access my machine.i also removed my 7970's to check for damage but also to reseat them and still no solution its very confusing im not sure if its hardware though

 

Well if the integrated graphics is working fine I would try the primary card on its own (the left hand side card) if that doesn't work try the secondary card in the primary slot, you might find one card failing while the other one is fine.

 

ok thanks to your advice i ahve made some progress. you were right the primary card was failing and after swapping it with the secondary it booted fine with no artifacts. does this mean one of my cards is dead or is there a possible fix?

 

Sorry to say but I think its dead/dying, I have not heard of any one being able to resurrect their 7970m before. You should be able to track down a used 7970m for a few hundred dollars if you want to replace it...?