Thanks Clark and Chris for hanging with me on this one. I won't be able to follow up till next week, but I will try the procedures and report back. > At 6:06 PM -0500 2/22/06, Chris Placzek wrote: >> One way to test the PS would be to make sure everything is plugged in >> properly, turn it on, and use a voltmeter to test the voltages coming >> out of one of the molex power connectors. Yellow should read 12V and >> red 5V. Thats really the least thorough way. I think, but am not sure, >> the proper way would be to unhook the motherboard, short out the green >> and a black wire to start it up, keeping it shorted, then testing out >> the voltages of the motherboard connector. You could just use one >> ground, and you probably dont have to test multiple of the same color wire. > > I wouldn't test any computer power supply without a load on it. I > inadvertently fired up a C610 PS without it being plugged into the > logic board and blew the PS. I even knew this was a possibility, I'd > just missed the power connector. > > Some switching supplies simply need a load attached or they burn out. > Generally the only way to find out is the hard way. > > It's better to test the PS with the logic board connected. You > should see +5, +12 and +3.3V at least, -5, -12 and +24 are also > possible. You should see one of those voltages on each lead of the > PS with the exception of the black wires and one other (the start > line. > > >> Anyway after checking the PS I would check the CPU connector. If that >> looks good check the PCI and RAM slots (even the ones with cards in >> them). Also any other connectors (airport, modem, ATA). If those look >> good I would look over the whole board (top and bottom) for missing >> resistors or other types of damage, or shorts. If one of those isn't >> your problem, then I would say the board is damaged beyond repair. > >> >> Chris P >> >> R. A. Cantrell wrote on 2/22/06, 5:28 AM: >> >>> on 2/22/06 1:02 AM, Chris Placzek at [EMAIL PROTECTED] wrote: >>> >>>> Or >>>> did you buy it dead? >>> I got it dead. It had been working daily in a graphics studio, and no one >>> there got inside it. > > Try cleaning the logic board with 90% IPA. Sometimes when a computer > gets stored (if that's the case) it can get coated with gunk.
-- All the Best, R.A. Cantrell [EMAIL PROTECTED] Visit R.A.'s Old Mac (mostly) Stuff @ http://tinyurl.com/vfvn -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:g-list@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
