how do you turn on only PSU fan or case fan?

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jewk
Posts: 21
Joined: Sun Jan 29, 2006 9:55 pm

how do you turn on only PSU fan or case fan?

Post by jewk » Tue Mar 28, 2006 5:56 am

i got 10 yate loon fans
i should choose quiet fans among 10 fans
i intended to hear 10 fans noise respectively by switching on them through hdd power adapter used in usb-ide adapter

Image

but the fan didn't work out

what's wrong with'em?
how do you turn on only PSU fan or case fan?
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CoolGav
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Post by CoolGav » Tue Mar 28, 2006 7:23 am

You could get a standard regulated power supply for anything that's rated for DC up to the maximum voltage of the fans. Thay wont draw much current, so even a small wall-wart should be OK. Regulated means the output voltage should be constant, so it wont vary and fool you into mis-choosing a particular fan if you test it when there's a slight brownout, or the washing machine (etc0 kicks in).
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dukla2000
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Re: how do you turn on only PSU fan or case fan?

Post by dukla2000 » Tue Mar 28, 2006 9:04 am

jewk wrote:... through hdd power adapter used in usb-ide adapter...
USB only provides +5V - many 12V fans will not start at that level.
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jewk
Posts: 21
Joined: Sun Jan 29, 2006 9:55 pm

Re: how do you turn on only PSU fan or case fan?

Post by jewk » Thu Mar 30, 2006 2:49 am

dukla2000 wrote:
jewk wrote:... through hdd power adapter used in usb-ide adapter...
USB only provides +5V - many 12V fans will not start at that level.
I made it by connecting it to 1394 external hdd power adapter
:D
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