SUMMARY: extra memory causes crashes

From: Roger Holman - Manager Computing Facility - Wgtn School of Medicine, Otago Uni <HOLMAN_at_wnmeds.ac.nz>
Date: Mon, 9 Jan 1995 13:25:24 +1300 (NZDT)

Date sent: 9-JAN-1995 13:11:36

Thanks to all those who responded to my original question regarding problems
with adding memory to a 3000-300. I have summarized the responses. In my case
it seems to be the Samsung memory incompatibility which requires an upgrade to
firmware ie cpu board replacement. If you plan to buy new memory I would advise
this is checked beforehand to avoid wasting time.

My memory is set up as follows

Slot Original Chip set (112Mb) Attempted Chip set (160 Mb)
1 32 Mb 32 Mb
2 32 Mb 32 Mb
3 8 Mb 32 Mb
4 8 Mb 32 Mb
5 8 Mb 8 Mb
6 8 Mb 8 Mb
7 8 Mb 8 Mb
8 8 Mb 8 Mb

Total 112 Mb 160 Mb

From the replies I have had so far the important things are

1. Layout (as above ) This I had correct
2. Bad memory Possible, one suggestion is to put new memory into
                        existing 32 mb slots. I havent done this yet.
3. Bad slots Unlikely, I am using the slots ok at present with 8 Mb
4. Firmware problem I have asked Digital to check on this one. This is
                        related to Samsung memory not being compatible with
                        previous firmware revs. I have requested an upgrade to
                        the cpu board as all above check out ok.

Thanks to

brendan_at_otago.ac.nz
john_at_wpi.edu
Grant Ward ( Grant.Ward_at_cssip.edu.au / gaward_at_dsto.gov.au ) configuration
From: Jonathan.J.B.Buchanan_at_Oda-3.CS.CSH.COM Firmware
From: wilkes_at_progress.co.uk Samsung memory
From: Harald Lundberg <hl_at_tekla.fi>
From: skk_at_benelux.pa.dec.com (Stuart Kreitman)
From: haymanR_at_icefog.uacn.alaska.edu
From: "Mark Borrie" <MBORRIE_at_math.otago.ac.nz>

Roger Holman Wellington School of Medicine
Manager Computing Facility P.O. Box 7343
Wellington School of Medicine Wellington South
Otago University New Zealand
Tel 64 4 385 5534 Tel 64 4 385 5999
Fax 64 4 389 8200 Fax 64 4 389 5725
Internet holman_at_wnmeds.ac.nz
Received on Sun Jan 08 1995 - 19:26:52 NZDT

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