29 Dec
2008
29 Dec
'08
6:51 p.m.
On Mon, Dec 29, 2008 at 6:52 AM, Johnny Billquist <bqt at softjar.se> wrote:
And since some have mentioned it, there was a 3rd
party upgrade to the 11/70
which replaced the whole memory system with a few cards in the CPU box,
which turned all memory into cache.
This was by a company called SETASI, and the product was the hypercache.
They actually had two products. HC-70 was the hypercache, and then you had
something called the PEP-70 as well. It appears they could be used together,
but I don't know if one was required for the other, or if they were related
in any way, and if so how.
Once I got the keyword "PEP-70", I easily found the previously
mentioned install guide. It appears that the products are usable
singly or combined. Since I don't really care about squeezing extra
CPU performance, I wouldn't personally hold out for the hypercache,
but replacing an MK-11 loaded with 16 256K cards with a single card is
enticing.
(SETASI also did other stuff, such as a SCSI adapted
for massbus, which was
pretty nice, and usable both on 16-bit and 36-bit machines.)
Neat. I've never seen any of that - I've only played with real DEC
peripherals on MASSBUS.
-ethan