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One more for the VAX crowd... 4000/90a FEPROM reprogram...
My VAXstation 4000/90a made a cross-country trip so that an expert could
replace a SIMM socket with corroded pins. It came back clean and
I put in a full 128 megs of memory. It boots showing 64 megs, but shows:
DEVNBR DEVNAM INFO
------ -------- --------------------------
1 NVR OK
2 LCSPX ?? 001 0480
Highres 66Hz - 8 Plane 4Mpixel FB - V1.0
3 DZ OK
4 CACHE OK
5 MEM OK
128MB 0A,0B,0C,0D=16MB, 1E,1F,1G,1H=16MB
So I tested the memory. No problems. I took out 64, tested one bank. No
problems. Took that one out and put in the other. No problems. Moved those
SIMMs to the second bank. Tested with no problems. Swapped the other SIMMs
in to that second bank and tested. No problems. So, both sets of SIMMs
test fine in both banks.
I put back in the full 128 megs. It comes up as 128 megs. I try to boot
and get messages like:
?02 EXT HLT
PC= 00001F6D PSL= 041F0000
BOOT = DKA0
%VMB-F-ERR, PC = 00001340
%VMB-I-STS, R0 = 00000908
?06 HLT INST
PC= 0000167F PSL= 041F0000
Looking online, other people mention similar errors in conjunction with
corrupted FEPROMs. I have a copy of COUGAR.SYS 1.4, but since I can't
boot via MOP, I'm not sure what else to do.
Is there another way to load a fresh COUGAR.SYS in to the FEPROMs? I was
thinking of writing a script which (slowly) issues DEPOSIT commands over
the serial port for all 512 KB of COUGAR.SYS, but even if I get it loaded
in to memory, how would I flash it in to the FEPROM from the chevron
prompt? Could I manually write all zeros, then all ones, then write
directly to the FEPROM?
Or is there another way to do this even though I can't MOP boot?
I can't wait to get this system running...
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