DEC Alpha Bug Check Crash

Douglas Taylor dj.taylor4 at
Tue Nov 13 11:15:34 CST 2018

On 11/12/2018 1:30 PM, Patrick Finnegan via cctalk wrote:
> On Mon, Nov 12, 2018 at 12:22 PM Jon Elson via cctalk
> <cctalk at> wrote:
>> On 11/11/2018 11:36 PM, Douglas Taylor via cctalk wrote:
>>> This is most likely correct.  I re-installed the OS on a
>>> different SD card/SCSI2SD device and got a successful
>>> graphics boot up.  Do SD cards drop bits or go bad?
>> UGH!  Yes, they can.  It SHOULD cause a device parity error,
>> but I guess some of their coverage is less than 100%
> You can buy "industrially rated" flash memory cards such as the
> "SanDisk Industrial" labelled ones, which seems to help based on my
> experience with SD cards in industrial controls systems at work.
> Absolutely avoid cheap SD cards though, they aren't usually good for
> more than a few re-writes in a digital camera type situation (linearly
> write the card, and then erase the whole thing, repeat).  Things like
> swap files on SD/CF cards may wear them out in a couple of hours of
> use.
> Pat

And I was under the impression that my hardware problems were coming 
from the 20 year old Vax!  Thanks for informing me.

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