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Thread ID: 78295 2007-04-10 11:00:00 Changing Fan Speed hueybot3000 (3646) Press F1
Post ID Timestamp Content User
539780 2007-04-10 11:00:00 I have a Albatron K8M800 - 754 Mobo and i just got a Thermaltake Vocano 12 off trademe. It didnt come with a speed controller so now i want to turn it down from 5700rpm to something that doesnt deafen me. My mobo doesnt support altering fan voltages so how can i change it, avoiding buying a fan controller if possible? hueybot3000 (3646)
539781 2007-04-10 11:58:00 I dont think u can. You'll have to buy some kind of controller. Speedy Gonzales (78)
539782 2007-04-10 12:08:00 Without buying a fan controller? Wire the fan using the 12v and 5v wires to get anywhere from 12v (full speed), 7 . 5v or 5v (half speed) .

I used to have a link to a site that describes it nicely, but it's a dead end now . This should get you started, Inexpensive 12V-OFF-7V Modification Fanbus Wiring Diagram ( . short-media . com/forum/attachment . php?attachmentid=3380&d=1067055247" target="_blank">www . short-media . com) .

I've done similar, without the switch, by linking a 5v into the a molex connector (you can get the molex male pins and female connectors from an electronics store like DSE), and I've also done it by modifying the wires to the 3 pin fan header plug (the one that connects to the mother board, the plugs are also available from electronics stores), though that's fiddlier .

These days I just use a fan controller . Much much simpler :thumbs:
Murray P (44)
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