[Info-vax] MicroVAX 3100-40 RAM

[Darren Clark]

Thanks for the reply, I bought some off another newsgroup member.

Now if I can only find a 9 track tape drive working or not...

Darren Clark


On 03.05.2012 10:46 AM, David Froble wrote:
> urbancamo wrote:
>> On Feb 26, 11:40 pm, Darren Clark <BiggRan... at tds.net> wrote:
>>> Does anybody have any 2 extra MicroVAX 3100-40 RAM SIMM floating around
>>> (good or bad)?
>>>
>>> I've reverse engineered one out of my MicroVAX after realizing that it's
>>> not a standard 72 pin SIMM, but an 80 pin SIMM. I've pinned it out and
>>> it's somewhat compatible with a 36 bit 4MB 72 pin SIMM, minus a buffer
>>> for the inputs and 8 extra (unused) pins. I've contemplated making up 2
>>> custom 80 pin SIMMS with a buffer and 72 pin SIMM socket, but that's a
>>> lot of work if someone has some extra's they're willing to let go of.
>>>
>>> If they're bad, I have the equipment to remove and replace individual
>>> chips on it, and have 100's of 4x1024K and 1x1024K memory chips floating
>>> around.
>>>
>>> Also if anybody is interested I can post the pinout and schematic
>>> somewhere.
>>>
>>> Darren Clark
>>> East of East Lansing, Michigan, USA.
>>
>> Darren,
>>
>> Does that bear any relation to the memory in a VAXstation 3100 ?
>
> If you're looking for 4 MB SIMMs, I most likely have some sitting
> around. I've also got 16 MB SIMMs, bot probably won't let them go since
> I have some VAXstation 4000 systems that I'm either using, or keeping
> for backup to the one I'm using.
>
> If interested, let me know.