"The PRAM battery is irrelevant to powering up on these models." Sooo, even if I change my battery, my IIci will not work. Right? It made sense that, if I didn't have any power to establish any ADB connection, that the IIci wouldn't power up using the keyboard. If the battery doesn't supply power, then what is it? The PSU?
Greets, Manuel Jorge M. Marques _____ [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> http://manuelmarque.no.sapo.pt -----Original Message----- From: Vintage Macs [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Walther Sent: segunda-feira, 12 de Setembro de 2005 0:44 To: Vintage Macs Subject: Re: Strange IIci behavior, cont. >Date: Sat, 10 Sep 2005 20:01:11 -0500 >From: Jeff Grant <[EMAIL PROTECTED]> >The IIci has the Astec power supply, and I think you're right, it may >be getting quirky. I have a bit of other odd behavior though. I was >under the impression, (but could be totally wrong) that the Quadra 700 >power supply would work in the IIci being the same form factor with >same listed voltages. When I try my Quadra power supply in the IIci, >the light flickers again, but won't power up. This happens if the PDS >card is in or removed. Nada happens. When I put the PSU back into >the Quadra, the 700 boots up just fine. It happens to be the GE model >from the 700. When I put the IIci's original Astec back in, it boots >up fine if no PDS card is in, as I described before. So maybe it is >the mobo?? Maybe both . . . hmmm. Oh yeah, I live in Fredericksburg, >Va. There is a fairly common failure of the IIci motherboard which interferes with powering up. Many of the surface mount capacitors are in the vicinity of the power-on circuitry on the motherboard and when they leak corrosive, that's the circuitry most likely to be damaged. You may wish to pull your motherboard and examine the rear right quadrant for discoloration--slightly darker, hint of brown. My IIci had this failure. I ended up bypassing a motherboard trace with some wire, because one of the vias through which the trace passed was corroded completely. I also cleaned the motherboard and replaced the caps. You might try your IIci PS in the Q700 to see what you can see. The two power supplies should be interchangeable. However, the current required to power up might be different and that could be why one power supply come on and the other doesn't. If the MB is delivering below spec. one PS may have more head room than the other. Other compatible power supplies include IIcx, IIci, IIvi, IIvx, Q700, C650, Q650, 7100. The PRAM battery is irrelevant to powering up on these models. Jeff Walther -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
