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I have one of those factory OC'ed MSI 8600GTS with the double slot fan. A couple days ago I upgraded the drivers to the June 23rd V175.19 drivers. I was playing a game and saw the temp go up into the high 70s, and then realized the fan wasn't turning on the card. I rolled the drivers back to the previous version and still the fan didn't work. This card usually runs in the low 40s in Windows and typically doesn't go over 60 even when gaming.
This card has a 3 pin plug coming off the fan, going into a Y adaptor that has both 3 and 4 pin plugs. From the factory the 4 pin plug is plugged in which makes the fan spin at 100% rpm. (Read: loud) But you can plug in the 3 pin plug and then it's software controlled and very quiet. So I tried plugging in the 4 pin plug and the fan worked. Then I tried removing the adaptor and using only the 3 pin straight out of the fan, and the fan still didn't work. Any idea what could be going on? The fan is working now but is plugged in with the 4 pin side of the adaptor and sound like a leaf blower.
This card has a 3 pin plug coming off the fan, going into a Y adaptor that has both 3 and 4 pin plugs. From the factory the 4 pin plug is plugged in which makes the fan spin at 100% rpm. (Read: loud) But you can plug in the 3 pin plug and then it's software controlled and very quiet. So I tried plugging in the 4 pin plug and the fan worked. Then I tried removing the adaptor and using only the 3 pin straight out of the fan, and the fan still didn't work. Any idea what could be going on? The fan is working now but is plugged in with the 4 pin side of the adaptor and sound like a leaf blower.