Sun

RDI PowerLite 110 NVRAM

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.
:Indy: :Indy: :Indigo2: :Indigo2: :320: :1600SW: <-Touchscreen retrofit
HP 712/60, 715/80, J6000 (16GB!)
IBM 43P-140
Sun SPARCstation IPX, SPARCstation 5
Apple Quadra 660av, PB540c, Pismo PBG3, PM8500, Radius 81/110
IBM Thinkpad 760ED, 765D (2x), 560X, T21
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.
:Indigo: R4000 :Indigo: R4000 :Indigo: R4000 :Indigo2: R4400 :Indigo2IMP: R4400 :Indigo2: R8000 :Indigo2IMP: R10000 :Indy: R4000PC :Indy: R4000SC :Indy: R4600 :Indy: R5000SC :O2: R5000 :O2: RM7000 :Octane: 2xR10000 :Octane: R12000 :O200: 2xR12000 :O200: - :O200: 2x2xR10000 :Fuel: R16000 :O3x0: 4xR16000 :A350:
among more than 150 machines : Apollo, Data General, Digital, HP, IBM, MIPS before SGI , Motorola, NeXT, SGI, Solbourne, Sun...
Thanks, I'll give it a shot tonight!
:Indy: :Indy: :Indigo2: :Indigo2: :320: :1600SW: <-Touchscreen retrofit
HP 712/60, 715/80, J6000 (16GB!)
IBM 43P-140
Sun SPARCstation IPX, SPARCstation 5
Apple Quadra 660av, PB540c, Pismo PBG3, PM8500, Radius 81/110
IBM Thinkpad 760ED, 765D (2x), 560X, T21
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.
:Indy: :Indy: :Indigo2: :Indigo2: :320: :1600SW: <-Touchscreen retrofit
HP 712/60, 715/80, J6000 (16GB!)
IBM 43P-140
Sun SPARCstation IPX, SPARCstation 5
Apple Quadra 660av, PB540c, Pismo PBG3, PM8500, Radius 81/110
IBM Thinkpad 760ED, 765D (2x), 560X, T21