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 at classiccmp.org> wrote:
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, 36 of them are 1MB, and the total of
288 256Kbit DRAM chips on the M7609 is a total of 8MB.