On August 4, Jerome Fine wrote:
> While trying to solve my timing problem with a PDP-11/83 in a BA123 system,
> I thought it might be time to try one of the other BA123 boxes I have. It turns
> out it had an M7626 CPU inside complete with 3 M7622 memory boards
> and the correct 5016743 usual cabinet kit and Ethernet L4 50020061 cabinet
> kit with the spaghetti cable harness. The cable to the DSSI cabinet kit was there
> as well along with a 5 part cable for the memory (only four in use of course).
Sounds like a KA660, VAX4000-200. 5VUPS. Nice little board, lots
of bang for the buck these days.
> One thing I am surprised about is just how few components there are on the
> M7662 CPU board. I see 3 inch square chips (2 with heat sinks on top)
> and 3 other somewhat smaller square chips (all 3 with heat sinks on top).
> There is also what seem to be a 114.285 MHz crystal. Is this correct?
> Is this the clock for the VAX CPU?
Yup. It's divided by two for a clock of 57.1MHz.
-Dave
--
Dave McGuire
Laurel, MD
Received on Sat Aug 04 2001 - 19:59:01 BST