One of the google results described:

DEC 64MB Kit 4-16MB Modules DRAM 70ns Parity SIMM

Another one claims that this memory is proprietary, and tries to con buyers into
paying over $200.

I do not think it is anything more than good quality generic 72-pin SIMMs.

.... Ben Myers



On Sun, 26 Aug 2007 22:35:46 GMT, "Robert Jarratt" wrote:

>In a previous post I was unable to boot this machine. It turns out that
>there was some faulty memory. Now when I try to boot of the CD-ROM I
>sometimes get AUDIT_CHECKSUM_INVALID and other times it gets past this and
>then fails with a problem allocating memory (right now I am getting the
>former error too much and can't tell you the exact message, it think it was
>ALOHUGEPAGE)..
>
>I am not sure whether the former error indicates a memory problem (TEST
>MEMORY succeeds) or if it is a problem with the CD-ROM drive. Any tips would
>be appreciated.
>
>I am assuming that the second problem is because I am now down to 16Mb and I
>have documentation now that suggests it needs a minimum of 32Mb, so I need
>to find more memory. The question therefore is what kind exactly (I know it
>is a 72-pin SIMM, but does it need to be parity, EDO etc?) and up to what
>sizes will the machine recognise?
>
>Any help with this would be greatly appreciated.
>
>Thanks
>
>Rob
>

Robert Jarratt wrote:
> In a previous post I was unable to boot this machine. It turns out that
> there was some faulty memory. Now when I try to boot of the CD-ROM I
> sometimes get AUDIT_CHECKSUM_INVALID and other times it gets past this and
> then fails with a problem allocating memory (right now I am getting the
> former error too much and can't tell you the exact message, it think it was
> ALOHUGEPAGE)..
>
> I am not sure whether the former error indicates a memory problem (TEST
> MEMORY succeeds) or if it is a problem with the CD-ROM drive. Any tips would
> be appreciated.
>
> I am assuming that the second problem is because I am now down to 16Mb and I
> have documentation now that suggests it needs a minimum of 32Mb, so I need
> to find more memory. The question therefore is what kind exactly (I know it
> is a 72-pin SIMM, but does it need to be parity, EDO etc?) and up to what
> sizes will the machine recognise?

You need generic 72 pin true parity SIMMs. The original memory was
70ns, but I am pretty sure that 60ns also works.

I think you need FPM memory and not EDO, but I don't know of any parity
SIMMs that are not FPM, so this shouldn't be a problem.

I know that 4MB and 16MB memory works. I am pretty sure that 8MB also
works. I don't know about other sizes.

Good luck!

--
-----------------------------------------------------------------------
Chris Scheers, Applied Synergy, Inc.

Voice: 817-237-3360 Internet: chris@applied-synergy.com
Fax: 817-237-3074

You've confirmed my suspicions. I think I still have some 16MB FPM SIMMs, even
with DEC part number. The OP can have four of them for a song plus cost of
first class mail... Ben Myers

On Mon, 27 Aug 2007 16:24:13 -0500, Chris Scheers
wrote:

>Robert Jarratt wrote:
>> In a previous post I was unable to boot this machine. It turns out that
>> there was some faulty memory. Now when I try to boot of the CD-ROM I
>> sometimes get AUDIT_CHECKSUM_INVALID and other times it gets past this and
>> then fails with a problem allocating memory (right now I am getting the
>> former error too much and can't tell you the exact message, it think it was
>> ALOHUGEPAGE)..
>>
>> I am not sure whether the former error indicates a memory problem (TEST
>> MEMORY succeeds) or if it is a problem with the CD-ROM drive. Any tips would
>> be appreciated.
>>
>> I am assuming that the second problem is because I am now down to 16Mb and I
>> have documentation now that suggests it needs a minimum of 32Mb, so I need
>> to find more memory. The question therefore is what kind exactly (I know it
>> is a 72-pin SIMM, but does it need to be parity, EDO etc?) and up to what
>> sizes will the machine recognise?
>
>You need generic 72 pin true parity SIMMs. The original memory was
>70ns, but I am pretty sure that 60ns also works.
>
>I think you need FPM memory and not EDO, but I don't know of any parity
>SIMMs that are not FPM, so this shouldn't be a problem.
>
>I know that 4MB and 16MB memory works. I am pretty sure that 8MB also
>works. I don't know about other sizes.
>
>Good luck!

Chris Scheers wrote:
>
> I know that 4MB and 16MB memory works. I am pretty sure that 8MB also
> works. I don't know about other sizes.

The Jensen also takes 32MB modules for a maximum of 256MB RAM.

Dennis

--
Don't suffer from insanity...
Enjoy every minute of it.

Dennis Grevenstein wrote:
>
> Chris Scheers wrote:
> >
> > I know that 4MB and 16MB memory works. I am pretty sure that 8MB also
> > works. I don't know about other sizes.
>
> The Jensen also takes 32MB modules for a maximum of 256MB RAM.

OOOHHH!!! Excellent! I'll have to see what I can find for mine!

--
David J Dachtera
dba DJE Systems
http://www.djesys.com/

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