nagy%warner.hepnet@LBL.GOV (Frank J. Nagy, VAX Wizard & Guru) (05/12/88)
> I have never seen or used the products and am in no way associated > with the vendor, but, according to ads I have seen, Clearpoint > Research Corp (1-800-CLEARPT) sells 8 and 16 Mbyte ram boards for the > MicroVax 2000. These might also work in the VaxStation, and could > very well be cheaper than DEC's upgrade to 4 Mbytes (at least per > Mbyte). I would be interested in other peoples experiences using > these products. >> I'd be very interested in knowing whether these boards will work in the >> VaxStation 2000. We had an 8 MB board on loan from Clearpoint for about a month. We had it installed in one of our color VS-2000s. There was no problem either installing the board or de-installing it. The VS-2000 is a 4 MB system with a non-DEC RD32 for local page/swap files. With the Clearpoint board, we raised the memory to 10 MB (8 MB Clearpoint board plus 2 MB on the motherboard). At that level (10 MB plus local page/swap) the VS-2000 was now outperforming the VAXStation-IIs on our LAVC (the VS-IIs have 13 MB of memory and local RD53s) as would be expected since the CPUs are essentially equal and the VS-2000s in this case have the Dragon graphics coprocessors. We were sorry to see the memory go. We also have 2 8 MB boards on order from Nemonix. These boards are showing every sign of being vaporware of the first order. Finally, our next round of VS-2000 orders will get us 6 MB machines from DEC. We will be installing a newer, high speed non-DEC RD32 (now with a 28 msec access time). In our LAVCs, such a 6 MB system might have adequate performance with those resources (6 MB + fast local disk). If so, then we would leave those systems at 6 MB but still plan to upgrade all the 4 MB systems. In an LAVC, 4 MBs in a VS-2000 is very nearly inadequate memory (about 2000 pages are left free for users after VMS and its detached processes consume memory). = Frank J. Nagy "VAX Guru & Wizard" = Fermilab Research Division EED/Controls = HEPNET: WARNER::NAGY (43198::NAGY) or FNAL::NAGY (43009::NAGY) = BitNet: NAGY@FNAL = USnail: Fermilab POB 500 MS/220 Batavia, IL 60510