Sun

I've got a Powerlite 110 sitting here, was working totally fine, it's got Solaris 2.5.1 on it, OBP 2.15. I let it sit unpowered for a bit and of course the NVRAM is dead. Now it thinks there's a password on it (there wasn't the last 20 times I booted it) and I am unsure how to remove said password. The NVRAM module is different from that in most Sun offerings, it's an M48T08-150PCI. It appears to be almost 100% pin-compatible with the standard M48T59Y-70 in the Sun Ultra series workstations. Aside from the difference in latency (70 vs 150ns) pin 1 is FT on the M48T59Y, with the M48T08 being INT. The T08 is apparently pin compatible with the Dallas DS1643, which lists pin 1 as NC. Is it worth a shot swapping its nvram out for that of an Ultra machine? I have some spares around in my dead ultras if so.

The Sun design (which RDI's is heavily based upon) does not use the ability for the MK48 to generate interrupts, so this pin isn't likely connected to anything on the motherboard. You can swap with an MK48T59 or a DS1643.

Thanks, I'll give it a shot tonight!

An update, in case anyone looks here. I didn't get a chance to swap the NVRAM modules out, as I powered it on today and the PROM Password prompt disappeared as mysteriously as it had appeared.