max wattage cpu fan header a7n8x-e

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Leadfoot

what is the max wattage for the cpu fan header on a a7n8x-e

have a 120mm 12vdc .0.30amp 3.6W fan i want to hook up to it
 
"Leadfoot" said:
what is the max wattage for the cpu fan header on a a7n8x-e

have a 120mm 12vdc .0.30amp 3.6W fan i want to hook up to it
Click to expand...

The manual says:

The fan connectors support cooling fans of 350mA~740mA (8.88W
max.) or a total of 1A~2.22A (26.64W max.) at +12V.

and while I don't understand how there can be two current limits,
you are running at less than both of them, so it should be OK.

HTH,
Paul
 
Paul said:
The manual says:

The fan connectors support cooling fans of 350mA~740mA (8.88W
max.) or a total of 1A~2.22A (26.64W max.) at +12V.

and while I don't understand how there can be two current limits,
you are running at less than both of them, so it should be OK.
Click to expand...
The first limit is 'per connector', the second is for all the connectors
together. Three fan connecors, 740mA each gives 2.22A total. Why they bother
to give the second figure is that on some other board models, the total is
less than 3* the rating of the individual connectors, so they have 'got into
the habit' of giving both figures.

Best Wishes
 
and while I don't understand how there can be two current limits,
Click to expand...

3 fan headers, 8.88 * 3 = 26.64.

Why they mention the total is sort of confusing to me since I don't
think you could connect them in serial. ;p

Ed
 
Ed said:
3 fan headers, 8.88 * 3 = 26.64.

Why they mention the total is sort of confusing to me since I don't
think you could connect them in serial. ;p
Click to expand...



There is probably a feeder lead that branches out to all three headers in
parallel. Why not just use the nearest 12vdc line? Because if you do blow
out a lead by using a high wattage fan the motherboard won't be rendered
useless.


Thanks to all who replied!!!!
 
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