How many fans can this motherboard support?

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raisonjohn
The MSI A68HM-E33 V2 has a total of 2x Fan Headers (1x 4-pin CPU_FAN and 1x 4-pin SYS_FAN). Typically, a fan header supports up to 1A max. If you only intend to plug in one fan per header, then, the CPU Fan will take up the CPU_FAN header while you are left with just 1 case fan to plug in the SYS_FAN header.

But, it is possible to plug in several fans off of one fan header - achieved by using fan hubs or splitters. You just have to make sure the rated ampere draw of the total fans you will connect would not reach 75% of the header's max., for safety. You can check how much amp the fan draws by looking at the spec sheet, the box, or the back of the fan with the sticker label.

So, for example, if the case fans are rated at 0.25A...
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David5555

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May 21, 2017
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Thanks but is it a big temperature if I use one fan instead of two?
 
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raisonjohn

raisonjohn

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Feb 22, 2015
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The MSI A68HM-E33 V2 has a total of 2x Fan Headers (1x 4-pin CPU_FAN and 1x 4-pin SYS_FAN). Typically, a fan header supports up to 1A max. If you only intend to plug in one fan per header, then, the CPU Fan will take up the CPU_FAN header while you are left with just 1 case fan to plug in the SYS_FAN header.

But, it is possible to plug in several fans off of one fan header - achieved by using fan hubs or splitters. You just have to make sure the rated ampere draw of the total fans you will connect would not reach 75% of the header's max., for safety. You can check how much amp the fan draws by looking at the spec sheet, the box, or the back of the fan with the sticker label.

So, for example, if the case fans are rated at 0.25A, then, you can plug in 3 of those fans (total of 0.75A) off a 1A fan header of your motherboard.
 
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Solution
DRagor

DRagor

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Jan 23, 2017
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It depends - on size of case and components used. Two fans, one on intake, one on exhaust is better option then just one fan on exhaust. But in general, if not using small case (for IATX motherboards), the difference between one or two fans should not be big.
 
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