DEC used to use the first letter of the suffix for density, and the second
letter for the chip manufacturer.
On Wed, Jul 10, 2019 at 12:08 PM Glen Slick via cctalk <
cctalk@classiccmp.org> wrote:
> > The simple answer is to install it in a uVAX2 system and see what it
> > says :-)
>
> Or look up
> The simple answer is to install it in a uVAX2 system and see what it
> says :-)
Or look up the part number on one of the DRAM chips, count the number
of DRAM chips, and then work out the total.
If the M7609 uses 256Kbit DRAM chips (as all MS630 boards do), then 9
of them are 256KB with parity,
bably right (in this case ;)
Lyle
__
> From: Lyle Bickley
> Sent: Tuesday, July 9, 2019 6:08 PM
> To: cct...@classiccmp.org
> Cc: W2HX
> Subject: Re: DEC MS630/M7609 Question
>
> On Tue, 9 Jul 2019 21:11:39 +
> W2HX via cctech wrote:
>
> >
be the first time wikipedia was wrong...
Eugene
From: Lyle Bickley
Sent: Tuesday, July 9, 2019 6:08 PM
To: cct...@classiccmp.org
Cc: W2HX
Subject: Re: DEC MS630/M7609 Question
On Tue, 9 Jul 2019 21:11:39 +
W2HX via cctech wrote:
> Hi there.
>
>
On Tue, 9 Jul 2019 21:11:39 +
W2HX via cctech wrote:
> Hi there.
>
>
> I just acquired a board with the number M7609. It was advertised as an
> M630-CA which my research tells me is supposed to be 16MB. How do I tell on
> the board if this is 8MB or 16MB? There does not seem to be a suffix
On 09/07/2019 22:11, W2HX via cctech wrote:
Hi there.
I just acquired a board with the number M7609. It was advertised as an M630-CA
which my research tells me is supposed to be 16MB. How do I tell on the board
if this is 8MB or 16MB? There does not seem to be a suffix on the board that I
M7608 == 4MB
M7609 == 8MB
AFAIK the only DEC 16MB Q-bus board is the MS650 M7622 for the KA640,
KA650, KA655, KA660
On Tue, Jul 9, 2019, 2:36 PM W2HX via cctech wrote:
> Hi there.
>
>
> I just acquired a board with the number M7609. It was advertised as an
> M630-CA which my research tells me
Hi there.
I just acquired a board with the number M7609. It was advertised as an M630-CA
which my research tells me is supposed to be 16MB. How do I tell on the board
if this is 8MB or 16MB? There does not seem to be a suffix on the board that I
can see.
What to look for?
73 Eugene W2HX
