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Old 06-22-2009, 11:33 PM   #1
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Default Case fan size

How do you measure a case fan? I saw a few google posts and they made it seem pretty simple. Just measure straight across.

I just want to make sure I get the right one. Do you measure the vent width? or do you measure diagonal, or mouting screw to mounting screw etc.?

The case I have is a Apex PC-389.

Thanks
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Old 06-22-2009, 11:42 PM   #2
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Default Re: Case fan size

Usually, the smaller sizes are 80mm and the next biggest is 120mm.
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Old 06-22-2009, 11:45 PM   #3
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Default Re: Case fan size

Quote:
Originally Posted by pitbull30 View Post
How do you measure a case fan? I saw a few google posts and they made it seem pretty simple. Just measure straight across.

I just want to make sure I get the right one. Do you measure the vent width? or do you measure diagonal, or mouting screw to mounting screw etc.?

The case I have is a Apex PC-389.

Thanks
edge to edge. straight across.
Generally, the only 2 sizes are 80mm and 120mm.
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Old 06-22-2009, 11:50 PM   #4
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Default Re: Case fan size

The rear exhaust fan is 80mm and the fan that goes in front of the hard drive cage is 92mm. You can fit a 92mm in the rear as well, but you need grommets for that.
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Old 06-23-2009, 03:35 AM   #5
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Default Re: Case fan size

They are circular, so it doesn't matter which way you measure it
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Old 06-23-2009, 07:23 AM   #6
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Default Re: Case fan size

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Originally Posted by worshipme View Post
They are circular, so it doesn't matter which way you measure it
what if they wernt circular? lol

but like most say its either 80 or 120, or 8cm or 12cm, how ever u wanna look at it, unless a case has a special size like antecs 1200 with its 200cm fan.
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Old 06-23-2009, 09:15 PM   #7
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Default Re: Case fan size

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Originally Posted by rohan23 View Post
The rear exhaust fan is 80mm and the fan that goes in front of the hard drive cage is 92mm. You can fit a 92mm in the rear as well, but you need grommets for that.
Hi,

Did you find those specs online? I searched google and couldnt find it.

I realize they are circular but I wasnt sure if they measure from mounting hole to mounting hole or just the circle diameter.

Thanks for the replies! once again.
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Old 06-23-2009, 09:22 PM   #8
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Default Re: Case fan size

The info is on their site: APEX PC-389
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Old 06-23-2009, 09:29 PM   #9
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Default Re: Case fan size

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They are circular, so it doesn't matter which way you measure it
Actually no, The measurement is the whole thing, not the fan itself. The actual fan on an 80mm is more like 70mm.
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Old 06-23-2009, 09:45 PM   #10
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Default Re: Case fan size

They are measured edge to edge as foothead described earlier.

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