Question about odd GPU temperature issue

[ckm91377]

Hey all-not sure if my exact hardware makes a difference but if it does please let me know and I'll list it. I have been having an issue lately where my system will just shut down completely every once in a while completely out of the blue. It will go days without doing it and sometimes will do it a couple of times in a day. I use Speedfan to monitor my temps and each time after I have a shutdown I bring up the Speedfan logs and the temp is fine up until a few readings before the shutdown when it goes to -999. If this is a card issue it really needs upgraded anyway but if there is something I can do to fix it I'd like to be able to put off an upgrade a little longer to wait till I have the cash freed up to build a whole new system. Any thoughts or advice you can give are greatly appreciated.

 

[ckm91377]

Still looking for an answer.......