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Old 03-21-2006, 10:12 PM   #1 (permalink)
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Default case fan 101...

i have a connection on my mobo for "fan 2". what's the difference between connecting a case fan to the mobo and just connecting it to the power supply. does the mobo control speed? if so, is that necessary or can i just connect my case fans to power and they'll run at a constant speed? how does this work?

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Old 03-21-2006, 10:36 PM   #2 (permalink)
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Yes the mobo can control the speed, Can you tell us what mobo you have ?

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Old 03-21-2006, 10:45 PM   #3 (permalink)
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abit is7-v2.

also, what size case fan is likely to fit in the standard rear fan location of my tower? it looks like it measures 70mm but 60mm seems like a more common size.

where do you guys put these huge fans, like 120mm? do your cases have provisions for such big fans or do you have to "make" room?
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Old 03-22-2006, 06:32 AM   #4 (permalink)
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In most instances we use cases that already provide for larger fans.

80mm is a standard chassis fan size.
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Old 03-22-2006, 08:41 AM   #5 (permalink)
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matters what case you have really most that I've come across have either 2 80mm slots or a single 120mm slot in the back.The Lower end case have a single 80mm slot often.
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