I've had it in continuous use for 3 years and no problems so far. But the cooling is now on the blink... Within a few seconds to 90

I don't think so. I would keep my hands off the card anyway. It crashed at 60 degrees and was sent back 3 times. In the end, Gigabyte refunded the purchase price. On the internet you can find countless reports from people with the same overheating problem.