In a message dated 10/21/02 10:06:56 AM, [EMAIL PROTECTED] writes: << >From what I've read (haven't checked this out myself) the 510W supplies are a myth. True they're listed in some Apple specifications but they don't actually exist. The best explanation I heard was that the 510W was likely the input power (for the 390W PS) and some marketing weany got ahold of the number. >>
I'd have to agree. There's not enough volume in that housing for a 510 watt supply ... at least not without making it inherently unreliable. It's a rather complicated supply ... not like those PeeCee models which claim to put 390 watts in about one third the volume of the 8600/9600 supply. That being said, I have found a 325 watt PeeCee power supply which will fit in a Beige G3, and, by extension (and with the Beige's PSU adapter plate) in an 8600/9600. The trick on this adaptation is to get a late model ATX supply ... the ones with the 4-pin (2 by 2) Japan Molex connector and the (brand unknown) "1 by" connector which appears as though it came from a PC/XT supply. Cut off those two connectors. Then, go into the supply and cut wires from those two connectors all except one +5 line, two ground lines and one +12 line. Shrink-on some insulating tubing over the cut ends. Make these four remaining wires into an additional disk drive connector using a crimp-on AMP Mate-N-Lock connector. Finally, convert the two 3.5" floppy power connectors into AMP Mate-N-Lock connectors. I don't have the faintest idea why the manufacturers always wire +12 and the +12 return to those 3.5" floppy connectors as every one I've endountered has been +5 volts only. The result of all this is a high-capacity PSU which can supply eight drives, or seven drives and the fans in the handle of the Beige MT. -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:pci-powermacs@;mail.maclaunch.com> To unsubscribe, email: <mailto:pci-powermacs-off@;mail.maclaunch.com> For digest mode, email: <mailto:pci-powermacs-digest@;mail.maclaunch.com> Subscription questions: <mailto:listmom@;lowendmac.com> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
