10 Jun
2025
10 Jun
'25
8:29 a.m.
On Tue, Jun 10, 2025, 9:04 AM Jon Elson via cctalk <cctalk(a)classiccmp.org
wrote:
On 6/9/25 12:59, Miod Vallat via cctalk wrote:
Isn't there a command in OpenFirmware to reset that? Or to set things like
MAC address that might 'fix' this before the kernel gets a chance to freak
out...
Warner
There are no details about the battery in the manual, except that they
are made of ``the latest generation of Nickel Cadmium batteries'', where
latest means 1992.
Ah HAH! That confirms my suspicions from the original
message, that the machine would partially boot once, then
never again until left unpowered for a few weeks. I guessed
that there was a CMOS battery that was rechargeable, and the
several weeks wait allowed that battery to fully discharge.
The issue is the partial boot leaves some corrupted data in
the battery-backed RAM.