I have never heard of that ps nor can I find any information on it. Most of the hardware problems you find with high end video cards are caused by low quality power supplies. I would test a quality unit ie antec, enermax, coolmax, or sparkle / fortron of at least 500W with a min of 30amp on the combined 12V rails.
You are not using a 20pin ps with an adapter to 24pin are you?
They do not even publish specs on what that ps puts out ie what amps on what rail.
I would really go with a quality unit ie antec, enermax, coolmax or sparkle / fortron. With something like that and a high end video card, you are asking for problems.
As posted in post #6, a min of 30amps on the 12V; preferably 35amp or more. Note most modern ps have dual 12V; you add the two together to get the total amps. As an example you might see 12V1 @18amp and 12V2 @18amp for a total of 36 amp on the 12V rail.
BTW the 12V is what powers most things in a modern system including your vid card.
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