uVax II problems
John Dodson
johnd at physiol.su.oz.au
Sat Jun 2 08:46:54 AEST 1990
In <1990Jun1.151251.24062 at eng.umd.edu> smaug at eng.umd.edu (Kurt J. Lidl) writes:
>We have a uVax-II with a third party disk controller with two 320meg
>Maxtor disk drives attached to this controller. Additionally,
>a third party 8 meg memory board is in the system.
>After some downtime (for re-arrangment of the area where the
>machine lives), I cannot bring the machine back up.
>What confuses me is why the machine gets so far along in the startup
>before it crashes and burns. Any ideas out there?
>machine check 80: read bus error, VAP is virtual
> sumpar = 80
> most recent virtual addr =8798
> internal state =0
> pc = 8794
> psl = 3c00000
> mser = 241
You have a memory problem (m chk 80)
problem is in additional memory board 1 (mser = 241) if it were mser =2C1
it would be board 2.
it could be, the board itself (ie a bad chip) or the cable at the rear of the
boards if this cable is not very very short ;-) you will have problems (or if
it is not quite pushed right in)
Try the cable, then replace the board (or remove it, but then I don't know
if your kernel will manage with only the 1Mb on the cpu board)
Most of these 3rd party boards come with 5yr or lifetime ?;-) warranty.
For info on uvaxII hardware you need the KA630 cpu manual (can't recall the
DEC part No. off hand)
johnd at physiol.su.oz.au
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