doc@nucleus.UUCP (Dave Mundhenk) (09/18/89)
Well, I'm posting again regarding weird goings-on in my 7300.
I may be wearing out my welcome here, but the way things are
going I probably won't be a UNIXpc owner much longer, at least
the owner of a "working, intact" UNIXpc.
The machine is a P3..P5 512K motherboard. I have a 512K RAM
expansion card in it. The motherboard has a daughterboard over
the area where the battery is - others I've seen don't have
this and I don't know the significance of it. I pulled the dead
original battery and wired up a battery holder outside the case.
Motherboard appears to have extensive field mods (know what
'vermicelli' is?). ;-)
I run the hard disk off an external 150 Watt power supply.
Disk is currently a CDC 94155-85. (Brand New). Had foundation
set installed and running briefly when the root directory appeared
to be trashed - /tmp was a very large FILE with 000 permissions, etc.
Now trying to re-install the foundation set from either of 2 known
good sets (3.5 and 3.51). Got some floppy-related errors so I've
tried everything with another known good floppy drive also.
Here are some of the errors encountered:
In diagnostics,
Test: Floppy disk Test
Subtest: Random seeks with read sector
Pass: 2
Error: FLOPPY: Error on Check - Read: Response = 8,
start Block = 1.
Test: Hard Disk Test (Drive 0)
Subtest: Read all the disk
Pass: 1
Error: WINCHESTER: Error on Check - Read: Response = 40,
start Block = 31063.
Test: Expansion memory test
Subtest: Data bus test (Walking 1's)
Pass: 1
Error: Memory error at Address 0: Wrote 80; Read back 0.
^
|
This repeated for 2,4,6,8,A,C,E,10,12,14,16, etc. before
I aborted and moved on...
Here's what happens when I read in the Foundation Set:
Floppy boot boots OK (sometimes must power on & off several times
first). Prompts for Floppy File System Disk. Floppy FS disk reads,
prompts "...want to continue? [Yes,No]" and I answer "y". It says
"making file system on hard disk". OK. Then "copying loader onto
hard disk". OK. Then "Copying System V files to hard disk" or
something like that. After about 10 seconds, I get the message:
#FDERR ST:40 TR:3 SR:1 DR:0 DMACNT:FF00 DCRREG:F7 MCRREG:CF00
#FDERR ST:40 TR:3 SR:1 DR:0 DMACNT:FF00 DCRREG:F7 MCRREG:CF00
#FDERR ST:40 TR:3 SR:1 DR:0 DMACNT:FF00 DCRREG:F7 MCRREG:CF00
^
panic: dup mem alloc |
|
Please record the panic message. |
Press hardware reset to reboot. |
|
[This came out as "CD00" several times also...]
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I think this may be my final plea for help. I can't afford to
put much money into this machine, and if it needs work on the
motherboard I will probably have to sell the 70MB disk and use
something smaller and slower |-(
I got a variety of sugg{Ystions in response to previous postings.
Most were "bad floppy drive", "bad WD1010", "RF interference".
Augustine Cano mentioned that it might be the DMA chip, so it
be worth a try to replace that [them?]. Did I mention that I also
put in a new WD2010? Just out of curiousity I may put the WD1010
back in. What the hell. I'll try feeding it toast and coffee if
it will help.
If it is really sick I will part it out and stick with IBM
compatibles and 3B's (or whatever else is handy that WORKS!).
BTW, I have a DOS-73 board that I was hoping to install in this
machine if I got it working. If this is curtains, anyone want to
make me an offer on that or any other parts?
-sigh-
I like this machine, please help me resurrect it!
Dave Mundhenk =-=-=-=-=-=-= 201-580-4943
Please reply to: ...!att!lc15a!doc
--
Dave Mundhenk =-=-=-=-=-=-= 201-580-4943
Please reply to: ...!att!lc15a!docjarrett@gremlin.ucsd.edu (Brooke Jarrett) (09/19/89)
In article <5452@nucleus.UUCP> doc@nucleus.UUCP (Dave Mundhenk) writes: > >(... deleted lots of lines ...) >BTW, I have a DOS-73 board that I was hoping to install in this >machine if I got it working. If this is curtains, anyone want to >make me an offer on that or any other parts? > Hi Group, I have a 3b1 that I am very happy with (Fire Sale 8-), I have been looking for a Dos-73 card to put into it. I'd rather not pay the full retail, so if anyone out there has one they'd like to get rid of, let me know. I'd like to run the Cosmos Go program (IBM PC), so if any of you know a reason why that wouldn't run on the DOS-73, save me some money. Brooke Jarrett bjarrett@ucsd.edu (work) ucsd!sdsu!berick!delbr!brooke (home)