mahesh@caradhras.cc.nd.edu (Mahesh Subramanya) (01/16/91)
Is there a low cost way of upgrading the memory on a model 320?? As far as I know, IBM is the only company that sells the memory boards, but I also hear that the system memory consists of a board with SIMMS of some sort mounted on it. Is it possible for me to just scrap the current set of SIMMS and replace them with something else? Will it take straight parity SIMMS i doubt it tho). Does any one else out there manufacture these ? Has anyone out there actually upgraded the memory themselves?? Thanx in advance for the info ************************************************************************ Mahesh Subramanya INTERNET: mahesh@caradhras.cc.nd.edu Senior Analyst Office of University Computing NeXT: mahesh@numenor.next.nd.edu University of Notre Dame Voice: (219) 239-5600 x6421 Notre Dame, IN 46556 ************************************************************************
woan@exeter (Ronald S Woan) (01/17/91)
In article <1991Jan16.153700.10512@news.nd.edu>, mahesh@caradhras.cc.nd.edu (Mahesh Subramanya) writes: Mahesh> Is there a low cost way of upgrading the memory Mahesh> on a model 320?? As far as I know, IBM is the only Mahesh> company that sells the memory boards, but I also Mahesh> hear that the system memory consists of a board Mahesh> with SIMMS of some sort mounted on it. Is it Mahesh> possible for me to just scrap the current set of SIMMS Mahesh> and replace them with something else? Will it take Mahesh> straight parity SIMMS i doubt it tho). Does Mahesh> any one else out there manufacture these ? No third party memory boards are available, but some people have reported success in this group of upgrading the 8MB IBM memory cards by replacing the SIMMs with third party 2MB/4MB SIMMs (16/32MB card capacity) designed for the RISC System/6000 memory cards (straight parity PC SIMMs will definitely not work, just count memory chips on your board to figure out why). At the back of the latest PC Week magazine is an ad by Sigma Data (800-446-4525) claiming to have such SIMMs in stock.... This is not an endorsement in anyway and I have had no dealings with SD other than happening upon their ad in PC Week. +-----All Views Expressed Are My Own And Are Not Necessarily Shared By------+ +------------------------------My Employer----------------------------------+ + Ronald S. Woan woan@peyote.cactus.org + + other email addresses Prodigy: XTCR74A Compuserve: 73530,2537 +
abe@mace.cc.purdue.edu (Vic Abell) (01/18/91)
I enclose two articles previously posted on this subject. I have also discussed the possibility of obtaining unpopulated memory boards from IBM with my local ACIS rep. While he was initially optimistic that it would be possible to get them if the order quantity was large enough, he does not now believe it will be possible. Vic Abell <abe@mace.cc.purdue.edu> Article 2758 of comp.unix.aix: >From: mccalpin@perelandra.cms.udel.edu (John D. McCalpin) Newsgroups: comp.unix.aix Subject: Re: Non IBM Scsi Disk and memory Date: 27 Nov 90 20:36:54 GMT >> On 27 Nov 90 16:36:30 GMT, donp@niaid.nih.gov (Don Preuss) said: Don> [.....] Also, IBM is charging a shitload for Don> their memory boards and SIMMS. Has anyone tried 3rd party memory/or Don> recommend where to get it from. I know of 3 vendors who are advertising RS/6000 SIMMs. I also know that the SIMMs from at at least the first two of these vendors actually work, since I have had some in my machine for testing. #1 Impediment, Inc. 333 Franklin St Duxbury, MA 02332 (617) 837-8877 #2 Clearpoint 1-800-253-2778 #3 Dataram 1-800-822-0071 Don't be surprised if there is a bit of a wait on delivery, since no one is really geared up for production yet. 1 MB, 2 MB, and 4 MB SIMM's should be available in quantity from these guys by January or so (my guess). -- John D. McCalpin mccalpin@perelandra.cms.udel.edu Assistant Professor mccalpin@brahms.udel.edu College of Marine Studies, U. Del. J.MCCALPIN/OMNET Article 2941 of comp.unix.aix: >From: lab3e@landau5.phys.virginia.edu (Louis A. Bloomfield) Newsgroups: comp.unix.aix Subject: Non IBM Memory for RS/6000 Date: 11 Dec 90 17:31:11 GMT A number of individuals have asked about 3rd party memory for the RS/6000 machines (e.g. posting on Nov 27, 1990 by Don Preuss: donp@niaid.nih.gov). The actual memory cards are themselves difficult to clone, however SIMM kits (eight SIMM modules) to upgrade these cards to 16 MB or 32 MB are now being sold by: Impediment, Inc. 333 Franklin Street Duxbury, MA 02332 (617) 837-8877 at a price of less than $200 per MB. They are already shipping the kits. I have had a 32 MB kit in my model 320 for about a month and its works beautifully. I purchased my machine with only 8 MB of memory, hoping that some company would sell me SIMMs for a price more in line with the actual cost of the memory chips. I seem to have gotten lucky. The SIMM kits work in the models 320, 520, and 530. Unfortunately, IBM issued the model 540 with special 3.5 volt memory chips, so that these new SIMM kits will not work in the model 540 until they are field changed by IBM. ------------------------------------------------------------- Louis A. Bloomfield LAB3E@VIRGINIA.EDU Assistant Professor Department of Physics University of Virginia