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12-20-2007, 03:51 PM
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#1 |
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Member (5 bit)
Join Date: Dec 2007
Location: Mainz, Germany
Posts: 17
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Motherboard Support for Case Fans
I am doing my first build and have run into a snag already. My case has TWO fans which was a big selling point with me. However, my motherboard has only one place to connect a fan (that I can see). Also, the accompanying owners manual show only one. Where/How do I connect my second fan?
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12-20-2007, 04:05 PM
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#2 |
Join Date: Dec 2006
Location: Alberta, Canada
Posts: 1,382
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Run it from the PSU. You should have extra connections lying about.
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12-20-2007, 04:36 PM
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#3 |
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Member (5 bit)
Join Date: Dec 2007
Location: Mainz, Germany
Posts: 17
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The PSU has lots of connectors but none match up to the fan.
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12-20-2007, 04:56 PM
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#4 |
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Member (11 bit)
Join Date: Apr 2003
Location: Iowa
Posts: 1,652
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What kind of motherboard to you have?
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12-20-2007, 05:24 PM
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#5 |
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Join Date: Dec 2006
Location: Alberta, Canada
Posts: 1,382
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I'll guess that your fan has a 3-pin connection. Your PSU has a 4-pin molex. Find an adapter, they are everywhere.
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12-21-2007, 05:08 PM
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#6 |
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Member (5 bit)
Join Date: Dec 2007
Location: Mainz, Germany
Posts: 17
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I have a Gigabyte GA-MA69G-S3H. Looks to be a pretty good board. Has gotten decent reviews. I'm still waiting on a few things before I can fire it up.
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12-21-2007, 05:31 PM
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#7 |
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Member (11 bit)
Join Date: Apr 2003
Location: Iowa
Posts: 1,652
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Ahh.. It's a microATX board. That's why there only one Sys fan header. hitch has your answer.
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12-22-2007, 02:24 AM
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#8 |
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Member (5 bit)
Join Date: Dec 2007
Location: Mainz, Germany
Posts: 17
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Well, the mfgr's website lists this motherboard with the dimensions of 12X9 inches (actually 30.5mm X 22.9mm). Correct me if I'm wrong but I thought a micro was like 9.6 inches square?
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12-22-2007, 03:14 PM
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#9 |
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Member (13 bit)
Join Date: Sep 1999
Posts: 4,954
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It appears your motherboard is atx and has 2 fan headers,one for cpu fan and the other for system fan.
One is near the cpu socket and the other is on the edge near the pci slots. You can hook one fan to it and the other get an adapter to use the molex connector from the psu. |
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12-22-2007, 04:28 PM
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#10 |
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Member (5 bit)
Join Date: Dec 2007
Location: Mainz, Germany
Posts: 17
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Okay, I learned something today. Went to my local German computer gadget store with the intentions of buying the adapter recommended in the above threads and the guy there showed me a splitter that enables two fans to connect to the same SYS FAN header. Set me back all of about $1.50 and works great; made by Revoltec. Highly recommend.
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12-23-2007, 04:04 AM
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#11 |
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Folding at home.
Join Date: Jul 2007
Location: Christchurch, New Zealand
Posts: 2,126
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I would be cautious of running more than one fan off one header, the motherboard's PWM circuitry can only handle so much.
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AMD Athlon 64 X2 5600+@3.0GHz - nVIDIA GeForce GTX260@626/1620/2060MHz - 4GB DDR2 800MHz - 320GB WD Caviar Blue + 500GB WD Caviar Blue |
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12-23-2007, 10:15 AM
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#12 | |
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Shiro Usagi
Premium Member
Join Date: Sep 1999
Location: Kaneohe, Hawaii
Posts: 34,002
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Quote:
 Cricket
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12-24-2007, 02:51 AM
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#13 |
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Member (5 bit)
Join Date: Dec 2007
Location: Mainz, Germany
Posts: 17
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You know, that thought popped into my head at the store when the guy recommended this little splitter. But I asked him about the voltage and long-term effects and he said it shouldn't be a problem. I think I may err on the side of caution and take your advice. Thanks.
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12-24-2007, 05:22 AM
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#14 |
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Join Date: Dec 2006
Location: Alberta, Canada
Posts: 1,382
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"Shouldn't be a problem"...famous last words.
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