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fan power supplies and regulation....

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Dec 22, 2000
Got me a killer setup in the works. I have procured a power supply board from a VCR, which is nothing but a circuit board with the various components on it, and it plugs into a standard 110v wall outlet. The p/s has +5v, +12v, and +24v outputs at 2.8 amps. Enough to run my Nidec 92mm, 24v, 56cfm cooling fan, since it only pulls 3mA at 24v. I am going to run it through the LM217T voltage regulator setup, and consequently will be able to adjust my fan from @22v and down. (the LM217T drops about 2v across the circuit). I am building my mounting plate on 1/8" lexan and will attach it in the top inside of my full tower where the (2) 80mm Sunons will keep it nice and cool. Now the 92mm Nidec is going onto my FOP38 in place of the Delta screamer, and by turning down the voltage a bit I should be able to provide a nice QUIET 38cfm or so to the cooler. Should work like a charm, I will post some pics as soon as I finish the job tomorrow night or saturday.

Tbird 1.0 @1.1ghz and 1.8v, 110 fsb x 10, (have not tried higher YET)
Abit KT7 non-raid
Globalwin FOP38
256mb Kingmax pc150 @146mhz CAS2 (host + pci)
WD 15.3gb and 20.5gb ata66 7200rpm
Plextor 8432 CDRW
AOpen 52x CDRom
Pioneer 10x DVD-ROM
Highpoint ATA66 controller card
KDS 19" Avitron (Trinitron tube)
USB Intellimouse Optical
Creative GTS @215/380
(2) 120mm blowholes
(4) 80mm case fans
Image full tower case with 300w Sparkle
Windows 2000 PRO SP1 (the only way to fly!)