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Replacing strange sized graphics card fan

Last response: in Graphics & Displays
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June 5, 2013 2:45:27 AM

My graphics card makes a hell of a racket on start up. After about 10 minutes when it has warmed up I can hit the case a few times and it'll quieten down. Card is an ATI HIS 5770HD. When new, it was beautifully silent outside games and in games it was still hardly noticable.

I want to replace the fan. Problem is, it is a 65mm fan, which I found by taking a ruler and measuring the tip to tip distance of the fan blades. No one in New Zealand sells this size (lots of 70mm fans...). I refuse to believe my skills with a ruler are that bad, and even ebay returns only Chinese results.

So the question is: Have HIS used some strange sized fan no one else uses or am I missing something obvious?

NB: Yes, I have tried oiling the fan, its impossible as it is a completely sealed unit. Have considered drowning it in oil for a while and seeing what happens.
June 5, 2013 3:04:11 AM

I would rather suggest that you measure the distance between the holes that the screws go through and then going to an electronics store with that same ruler and measuring the holes on the fans that they sell.
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June 14, 2013 3:45:40 AM

So I bought an Artic Accelero L2 Plus aftermarket cooler, fits perfectly and comes with RAM and VR heatsinks which the card did not have before. All very nice. Cost $30 after shipping.

HOWEVER, the HIS HD5770 has a 2 pin fan connector and the Accerlero comes with a 3 pin and 4 pin connector. Unless anyone says otherwise in the next 24 hours, I am going to cut the plug off the old fan, wire the red and black wires from the new fan into the plug and see what happens. Anyone tried this before?

Another question, how is GPU-Z giving me a fan speed when I only have a 2 pin fan? I thought that took at least 3 wires and preferably a 4.
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