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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Powering internal PC fans
Does anyone know of a way to power a standard internal pc fan with an
external power supply? Are there any products out there that would make this simple? What I am doing is I have a lot of external hardware in a homemade case to provide portability. I have created an array of fans in the rear of it but need a way to power them without running them from the PCs internal supply. Any help would be great |
#2
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Powering internal PC fans
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#3
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Powering internal PC fans
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#4
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Powering internal PC fans
James Sweet wrote:
Does anyone know of a way to power a standard internal pc fan with an external power supply? Are there any products out there that would make this simple? What I am doing is I have a lot of external hardware in a homemade case to provide portability. I have created an array of fans in the rear of it but need a way to power them without running them from the PCs internal supply. Any help would be great Sure, just use one of those cheap "wall wart" bricks that puts out 12vdc. If it's unregulated (most are unregulated), make sure the 12v output is at the total needed current. I had an unregulated wall wart rated at 12v @ 500mA that I was running only at about 300 mA. The output was actually a little over 13v. |
#5
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Powering internal PC fans
UCLAN wrote:
James Sweet wrote: Does anyone know of a way to power a standard internal pc fan with an external power supply? Are there any products out there that would make this simple? What I am doing is I have a lot of external hardware in a homemade case to provide portability. I have created an array of fans in the rear of it but need a way to power them without running them from the PCs internal supply. Any help would be great Sure, just use one of those cheap "wall wart" bricks that puts out 12vdc. If it's unregulated (most are unregulated), make sure the 12v output is at the total needed current. I had an unregulated wall wart rated at 12v @ 500mA that I was running only at about 300 mA. The output was actually a little over 13v. A little over 13v will be fine for PC fans, they're not terribly sensitive and will run fine as high as 15V or so without issues. |
#6
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Powering internal PC fans
James Sweet wrote:
Sure, just use one of those cheap "wall wart" bricks that puts out 12vdc. If it's unregulated (most are unregulated), make sure the 12v output is at the total needed current. I had an unregulated wall wart rated at 12v @ 500mA that I was running only at about 300 mA. The output was actually a little over 13v. A little over 13v will be fine for PC fans, they're not terribly sensitive and will run fine as high as 15V or so without issues. Unless noise is an issue (since they will be at a higher RPM.) |
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