As supplied it was "off". Luckily the spec sheet detailed that it needed an up/down pulse on a pin to switch it on.
having removed the dud RTC, I discovered the PC wouldn't boot without it in place ...
This was a PC with an EISA bus (whatever happened to ?)
In message , Chris Green writes
OK, I'm missing the obvious. The case is off, and I am looking for a silver button battery, probably about the six of a sixpence. Could it be entirely different?
Size of a 10p piece more likely. Look for something shiny and round.
Back in the days of 8086/286/386, I do remember a few desktop PCs that used rechargeable batteries, soldered in. I never kept any long enough to need to replace it though.
SteveW
NiCds often last that long, I'd try it first & see. Give it 12hrs on to charge & see if it holds settings.
NT
Look for a NiCd, typ 3.6v
NT
may work if itrs an NiCd.
If its a button cell replace it
Oh I had some with NiCd in
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