[rescue] Cheapass MicroFax (sic)
wrmartin at verizon.net
Fri Jan 24 15:41:13 CST 2003
>>I can't seem to find the QBus HOWTO, though I'm sure I've seen it
>>somewhere back when I was looking for Unibus info. And silly me, I
>>thought the pdp11-field-guide was just about pdp11s.
> ...or you can just post here. There are lots of DECheads here. The
> pdp11 field guide covers many boards which can be used in both PDP11 and
> VAX systems.
Both? Are they 16 bit, or do they somehow autodetect? Wasn't the Vax a
clean sheet architecture hardware-wise? (I have a lot to learn. Great fun!)
>>The label says "Series BA215" and the case has six slots showing.
>>(Haven't gotten inside it yet.) Curious that it would have dual, but
>>non-redundant PSUs. Double the failure possibilities?
> Well, ordinarily that would be an issue. But these machines don't fail.
> Seriously. They just *do not break*.
> This reminds me of a story. About 12 years ago I was working at a
> gov't contractor facility in Princeton, NJ during severe weather. The
> building was hit by lightning...squarely on a power switching box for an
> air conditioning unit. The damage:
> - about 30 PCs completely destroyed (some of which produced smoke)
> - six laser printers destroyed
> - two Emulex Performance4000 terminal servers smoked
> - about a hundred PC and terminal keyboards destroyed
> - two SGI 4D/20 workstation power supplies destroyed
> - Nortel phone switch smoked
> - nearly every color monitor in the building needed to be "deeply"
> ...this amounted to pretty much everything that was plugged into a
> power outlet in the building.
> Except, of course, two MicroVAX 3600s (KA650, RA82). One indicated a
> spurious interrupt (or something along those lines) in the error log, and
> the other didn't notice at all. They didn't even reboot.
And I thought Sun SPARC boxes were well built. I'm impressed, though I was
already impressed by the PWS433au I bought a couple of months ago. Can you
tell by now that I'm an engineer? Retired now, got into management in
later years, but once an engineer... (Yes, I confess my sellout, a
suit. But it is/was mechanical engineering, so I had nothing
professionally to do with computers except as a user and when experiencing
jealousy (imagining the MIS (remember MIS?) guys' fun) and frustration
(when they wouldn't let me do what I wanted. Like buy a CP/M box. Though
they did give me the first PC in the company (Southern Railway.)) So
please, no flames.)
More information about the rescue