On Fri, 11 Feb 2000, [EMAIL PROTECTED] wrote: > My PB2400 of 2 years died a few months ago when it would not boot up. The > symptoms were similar to what others have reported, the green sleep light comes > on and stays on for several hours even when all power is removed. Attempts to > boot up produce either the greeting chord only, a click or - in the last death > throes - nothing at all. This has happened to me twice in the past year. > Or so I thought...... After about 6 weks of use I got the green light of death > again. Started off with some sort of "address error" warning message. When I > attempted to reboot it seemed OK at first but never progressed beyond a certain > point in the reboot - just froze. After numerous tries to reboot it got worse > until in the end just the sleep light stayed on. It maintained a ghostly green > vigil throught the night, but then it too flickered its last and fell into a > silent slumber from which no man or machine ever returns. I think the problem is connected to a weak/dead PRAM battery and an inopportune system freeze which somehow corrupts the PRAM and/or Power Manager. On subsequent restarts the problem gets worse. repeated PRAM & PM resets don't help. The only solution is to remove the main battery, totally drain the residual power and let the 2400 sit a day or two. A number of Duolisters seem to agree the 2400 is particularly susceptible to PRAM & PM corruption and difficult to reset. > > Or so I thought ..... 2 days later I could no longer stand the mocking visage of > my dead PB2400 and I plugged the thing in. Hello, it perks right up, loads the > OS and now it is running fine. > > Any ideas about what is going on here? Two motherboards, same symptoms. I am > afraid the G3 upgrade, while nice in itself, did not solve whatever problem > caused the machine to die in the first place. Other known problems: a very > scratchy. noisy HD that I think also must be replaced. Could the problems > booting be related to a HD failure of some sort? > I also suspected a flaky MB / DB-CPU / powerboard but my G3/240 2400 has been fine ever since. Solid and stable over the past 6 months with daily use. Another (unverified) suspicion I have is that a frayed AC adapter wire can also contribute to this sudden "corruption" problem (for lack of a better descriptive term). In short, the "green light of death" is less terminal than it may seem. > I'd kind of like to have some idea before I go invest in a new HD. The HD problem should be unrelated unless its stiction is so bad it literally freezes on spinup. > > thanks, > > Marc --- Sidney Ho [EMAIL PROTECTED] ---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400> X-Router | Share your DSL or cable modem between multiple computers! Dr. Bott | <http://www.drbott.com/prod/MIH120.html> PowerBook Guy is | Click here! Everything PowerBook! | http://www.powerbookguy.com Midwest Mac Parts ][ <http://www.midwestmac.com> After-market parts for Macs. ][ 888-356-1104 ][ MacResQ Reader Specials: 2.5GB Seagate SCSI: $119, 4GB IBM SCSI: $199, Norton Util. 4.0: $29, Mac Parts, Systems & Repairs <http://www.macresq.com>
