martin@cube.han.de (Martin Ortlepp) (05/30/91)
I know that this question has been asked several times but I don't know how to solve my problem: I want to upgrade my cube to 16 mb. So I bought 8 SIMM's 70 ns 511000 (1x9). Unfortunately the NeXT ROM Monitor said Exception #2 and that was all. I went back to the store and took 8 SIMM's 60 ns (!) 41C1000 (1x9) and,yes, with the same result. Now, NeXT does not provide information about third party SIMM's, so I would like to ask you guys to send me information about wich SIMM's will work correctly. -Martin martin@cube.han.de
tgingric@magnus.acs.ohio-state.edu (Tyler S Gingrich) (05/31/91)
In article <1991May29.211017.409@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes: >I know that this question has been asked several times but I don't know how to >solve my problem: > >I want to upgrade my cube to 16 mb. So I bought 8 SIMM's 70 ns 511000 (1x9). >Unfortunately the NeXT ROM Monitor said Exception #2 and that was all. I went >back to the store and took 8 SIMM's 60 ns (!) 41C1000 (1x9) and,yes, with the >same result. >Now, NeXT does not provide information about third party SIMM's, so I would >like to ask you guys to send me information about wich SIMM's will work >correctly. > You either need 1x8 or 1x9 (if you want parity mem & ALL your memory is 1x9) 100ns low-profile SIMM strips. I purchased 80ns SIMM strips from Chip Merchant and I've had no problems. If you're buying 1Mb strips, call MacConnection, MacWarehouse, etc & order 80ns Macintosh strips -- they will cost around $35-$45 each. Information on upgrading your machine's memory can be found in NeXTAnswers and in the comp.sys.next FAQ posting. Both are available from the ftp file servers at purdue (sonata.cc.purdue.edu) and oregon state (cs.orst.edu). Tyler
cnh5730@maraba.tamu.edu (Charles Herrick) (05/31/91)
In article <1991May29.211017.409@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes:
my problem:
I want to upgrade my cube to 16 mb. So I bought 8 SIMM's 70 ns 511000 (1x9).
Unfortunately the NeXT ROM Monitor said Exception #2 and that was all.
The SIMMS RAM chips shipped in your machine are 1X8 (i.e. non-parity
RAM).
You can not mix (1X8) with (1X9).
The 70ns should work, but your RAM needs to be non-parity if you are
going to use the RAM NeXT put in your cube.
Bon chance,
-- Chuckbartont@next2.msci.memst.edu (Tom Barton) (06/01/91)
In article <1991May29.211017.409@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes: >I want to upgrade my cube to 16 mb. So I bought 8 SIMM's 70 ns 511000 (1x9). >Unfortunately the NeXT ROM Monitor said Exception #2 and that was all. I went >back to the store and took 8 SIMM's 60 ns (!) 41C1000 (1x9) and,yes, with the >same result. We had the same problem. We also tried just 8 Meg of 80ns parity memory (no non-parity memory installed at all) without success. We finally traded our 1x9's for someone else's 1x8's. BTW, the 1x9's worked fine in a Mac, so the SIMMs weren't at fault. -- Tom Barton Internet: bartont@next2.msci.memst.edu Department of Math Sciences Bitnet: bartont@memstvx1 Memphis State University Phone: 901-678-2527
martin@cube.han.de (Martin Ortlepp) (06/01/91)
In article <CNH5730.91May31102802@maraba.tamu.edu> cnh5730@maraba.tamu.edu (Charles Herrick) writes: > The SIMMS RAM chips shipped in your machine are 1X8 (i.e. non-parity > RAM). > You can not mix (1X8) with (1X9). > The 70ns should work, but your RAM needs to be non-parity if you are > going to use the RAM NeXT put in your cube. Thanx for your answer. Hmm, in QA 620 it's said that one can mix parity and non-parity RAM. The problem ist that a 040 machine with mixed parity and non-parity won't boot automatically. However, my machine doesn't work with these SIMM's. I'll try 1x8 Mac style SIMM's, let's hope that they'll work.. -Martin martin@cube.han.de
SAMcinty@exua.exeter.ac.uk (Scott McIntyre) (06/02/91)
Since SIMMs from next here in the uk seem to be outrageously priced, I am considering just getting the 12mb colour station and getting the simms separately...is this wise? NeXT sells 16megs for about 2000 pounds, which, for those of you who watch the market, is about 3700 dollars. Which, to me, seems just a little bit silly. I have seen 4mb simms, X9 (whatever that means) for about 137 pounds in local trade mags...I know that they are probably even cheaper in the USA.. So, if I want more memory on my NeXT colour station, how should I go about doing it? All advice please! Scott . -- mcintyre@nsfnet-relay.ac.uk Scott A. McIntyre SAMcinty@uk.ac.exeter.exua Cornwall House S_MCINTYRE@uk.ac.lut.hicom St. Germans Road mcintyre.s@uk.ac.exeter Exeter, Devon, UK
kls30@duts.ccc.amdahl.com (Kent L Shephard) (06/04/91)
In article <CNH5730.91May31102802@maraba.tamu.edu> cnh5730@maraba.tamu.edu (Charles Herrick) writes: >In article <1991May29.211017.409@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes: > my problem: > > I want to upgrade my cube to 16 mb. So I bought 8 SIMM's 70 ns 511000 (1x9). > Unfortunately the NeXT ROM Monitor said Exception #2 and that was all. > >The SIMMS RAM chips shipped in your machine are 1X8 (i.e. non-parity >RAM). >You can not mix (1X8) with (1X9). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Wrong! I have 8 meg 1X8 and 4 meg 1X9. THe only requirement to mix 1X8 and 1X9 is that the 1X9 simms must be the first ones on the board and parity checking must be disabled. >The 70ns should work, but your RAM needs to be non-parity if you are >going to use the RAM NeXT put in your cube. I'm using IBM clone simms (1X9) and they do work. > >Bon chance, >-- Chuck -- /* -The opinions expressed are my own, not my employers. */ /* For I can only express my own opinions. */ /* */ /* Kent L. Shephard : email - kls30@DUTS.ccc.amdahl.com */
kls30@duts.ccc.amdahl.com (Kent L Shephard) (06/05/91)
In article <1991Jun1.091010.509@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes: >In article <CNH5730.91May31102802@maraba.tamu.edu> cnh5730@maraba.tamu.edu >(Charles Herrick) writes: > >> The SIMMS RAM chips shipped in your machine are 1X8 (i.e. non-parity >> RAM). >> You can not mix (1X8) with (1X9). >> The 70ns should work, but your RAM needs to be non-parity if you are >> going to use the RAM NeXT put in your cube. > >Thanx for your answer. Hmm, in QA 620 it's said that one can mix parity and >non-parity RAM. The problem ist that a 040 machine with mixed parity and >non-parity won't boot automatically. However, my machine doesn't work with ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This is not true. My '040 cube boots automatically from the scsi disk w/out having to go to the ROM monitor. The first time it did not. But after I disabled parity and rebooted it did. Like I said before parity should go into the first banks with non parity going in last. This is the way I configured my machine and the only way it would boot without problems. >these SIMM's. I'll try 1x8 Mac style SIMM's, let's hope that they'll work.. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The 1X9 simms you have should work. The only difference between a 1X9 and 1X8 is the extra chip the boards themselves are the same. > >-Martin >martin@cube.han.de -- /* -The opinions expressed are my own, not my employers. */ /* For I can only express my own opinions. */ /* */ /* Kent L. Shephard : email - kls30@DUTS.ccc.amdahl.com */
martin@cube.han.de (Martin Ortlepp) (06/09/91)
In article <28p402vw08py01@JUTS.ccc.amdahl.com> kls30@duts.ccc.amdahl.com (Kent L Shephard) writes: > >non-parity RAM. The problem ist that a 040 machine with mixed parity and > >non-parity won't boot automatically. However, my machine doesn't work with > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > This is not true. My '040 cube boots automatically from the scsi disk > w/out having to go to the ROM monitor. The first time it did not. But > after I disabled parity and rebooted it did. Ok, if that works then there is a wrong information in QA 620. Maybe that information depends on older ROM monitor versions where parity check couldn't be disabled. > >these SIMM's. I'll try 1x8 Mac style SIMM's, let's hope that they'll work.. > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > The 1X9 simms you have should work. The only difference between a 1X9 and > 1X8 is the extra chip the boards themselves are the same. Unfortunately they didn't. At the time of writing this I checked out three different types and all of them didn't work. It doesn't matter wether I turn off parity check or memory test I always get an exception #2. As I mentioned before all types work when I mix them with non-parity SIMMs WITHIN a bank. Now I have 16 MB 1x8 and no problems :-) Maybe there is something wrong with my ROM (2.2 v63) so it's unable to handle parity properly. I'll upgrade it to 2.4. -Martin martin@cube.han.de
cnh5730@calvin.tamu.edu (Charles Herrick) (06/11/91)
In article <1991Jun9.093935.846@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes: > The 1X9 simms you have should work. The only difference between a 1X9 and > 1X8 is the extra chip the boards themselves are the same. Unfortunately they didn't. At the time of writing this I checked out three different types and all of them didn't work. As I mentioned before all types work when I mix them with non-parity SIMMs WITHIN a bank. Now I have 16 MB 1x8 and no problems :-) Maybe there is something wrong with my ROM (2.2 v63) so it's unable to handle parity properly. I'll upgrade it to 2.4. When mixed (parity and non-parity) RAM is not officially supported, perhaps it's for a good reason. Don't mix your RAM. -- The opinions expressed herein are mine and are in no way attributed to any of the many people for whom I work. Who they are is irrelevant.
kls30@duts.ccc.amdahl.com (Kent L Shephard) (06/14/91)
In article <CNH5730.91Jun11084953@calvin.tamu.edu> cnh5730@calvin.tamu.edu (Charles Herrick) writes: >In article <1991Jun9.093935.846@cube.han.de> martin@cube.han.de (Martin Ortlepp) writes: > > The 1X9 simms you have should work. The only difference between a 1X9 and > > 1X8 is the extra chip the boards themselves are the same. > > Unfortunately they didn't. At the time of writing this I checked out three > different types and all of them didn't work. > > As I mentioned before all types work when I mix them with non-parity SIMMs > WITHIN a bank. Now I have 16 MB 1x8 and no problems :-) > Maybe there is something wrong with my ROM (2.2 v63) so it's unable to handle > parity properly. I'll upgrade it to 2.4. I just checked my ROM version it is 2.2 v63. Mixed ram works on mine. > >When mixed (parity and non-parity) RAM is not officially supported, >perhaps it's for a good reason. Don't mix your RAM. Third party ram is not supported, maybe I shouldn't use that either. 8-} >-- > The opinions expressed herein are mine and are in no way attributed > to any of the many people for whom I work. Who they are is irrelevant. -- /* -The opinions expressed are my own, not my employers. */ /* For I can only express my own opinions. */ /* */ /* Kent L. Shephard : email - kls30@DUTS.ccc.amdahl.com */