David Elmo wrote:

Can be easily... mere voltage is not a reliable indication of condition and
it should be 3.6 anyway, any loss of voltage when you are not putting a load
is a ground for suspicion. Try a small load and see. If it is awkward to get
another, just for temporary, hook up any 3.6 well charged supply (any 3
nicads... or many camera lithiums) to your Mac.


Carried the old battery in my pocket all day today before I got to Radio Shack. Got a new battery and brought them both home. Just for kicks, I retested the old battery. Outside of the system, it was now reading 3.68 V. When in the system (off and unplugged), it read 3.48 V. The expensive new battery (fifteen bucks!) had similar readings. The system also had a similar response: as dead as ever.

***RECAP***
To recap for those of you just joining us, my PowerMac 8500/120 (224 MB RAM, 2 MB VRAM, System 7.5.5) doesn't give video nor a startup chime. Lights flash and light up as they normally do, my hard drive spins up, my CD-ROM ejects. Key combos don't work (such as Ctrl-Cmd-Power, Cmd-Shift-Opt-Del-0, Opt, Cmd-Opt-O-F, mouse button down) and there's no video nor sound.


The pRAM and NVRAM have apparently been cleared. I've booted with no battery, the old battery and a new battery to the same results. The system has been in various states of plugged-in-ness with the aforementioned battery combos. All cards and DIMM's seated, cables intact. User has cursed repeatedly.
***********


Any more tech support, or should I just email Apple (if they'll even think of helping me with a legacy system like this)?
--
Colin



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