Alpha hardware

[Jay Estabrook]

Hi, Todd,

Did you try just 1, or a pair?

I thought that all the Alphas (other than some API machines that use
and AMD chipset) required SIMMS/DIMMS in pairs... ???

I know that I've loaded UDB with 64M SIMMS with success, but never had
anything larger to attempt. If those SIMMS were really "late", it's possible
that the SROM code isn't up to configuring them. I don't know if any of
the SIMM-based Alphas were ever tested with 128MB SIMMS...

Good luck.

--Jay++

Smith, Todd wrote:
> I have a Multia/UDB VX40 that takes 72pin FPM 36bit True Parity SIMM
> modules and I have wanted to use 128MB modules but the one that I tried
> didn't work.
> 
> Does anyone know if a 128MB module would work?  Has anyone with one the
> machines mentioned that use True Parity FPM RAM ever tried a 128MB
> module or know why it doesn't work?
> 
> Todd
> 
> -----Original Message-----
> From: axp-list-bounces at redhat.com [mailto:axp-list-bounces at redhat.com]
> On Behalf Of Marc Schlensog
> Sent: Wednesday, December 03, 2008 08:54
> To: axp-list at redhat.com
> Subject: Re: Alpha hardware
> 
> On Wed, 3 Dec 2008 15:44:03 +0200
> "Vesselin Kenashkov" <kenashkov at gmail.com> wrote:
> 
>> On Wed, Dec 3, 2008 at 3:39 PM, Marc Schlensog <mschlens at redhat.com>
>> wrote:
> [...]
>>> No. The offered memory is reg/buffered SD-RAM, which came way past
>>> the obsolesence of the DEC3000. You need fast page mode SIMMs
>>> (pre-decessor of edo). Not even sure if PS/2 works.
>>>
>>> b.r.,
>>>
>>> Marc
>>>
>>>
>> In that case SGI Indy memory *might* work for him. AFAIK Indy uses
>> 50/60nsec FPM modules.
> 
> As I said: I'm not sure if the DEC3000 uses PS/2 memory. I know that
> the Noname/AXPpci33 and the Multia/UDB use them (72pin FPM w/ true
> parity). If the DEC3000 uses the same memory, yes, then he can use Indy
> memory. If not and it's something proprietary (which wouldn't surprise
> me), he's a bit out of luck.
> 
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