Help: 32 MB in PI25

Fri Sep 7 21:50:26 AEST 1990

Here are two messages about upgrading PIs past 16 MB.  Basically what
one wants to do is remove the 1 MB SIMMs and replace them with 4 MB
SIMMs.  The 4 MB SIMMs allow one to upgrade the PIs with anything from
16 MB up to 64 MB of memory.  The second message gives a supplier of
4 MB SIMMs which are cheaper (per MB) than the 1 MB SIMMs!
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From:	FNAL::LEININGER    "MARK LEININGER at FNALB.FNAL.GOV (708) 840-4776" 
24-AUG-1990 12:12:25.33
To:	RICHARDSON
CC:	NAGY,HERBER,THOMAS,LEININGER
Subj:	Upgrading SGI Personal Iris past 16M

You have two options to upgrade the PI past 16M.

Background: The PI has 16 memory slots.  If you populate them all with 1M
Simms, you go to 16M.  If you populate them all with 2M Simms (only available
from SGI) you got to 32M.  If you populate them all with 4M Simms (only
available from third party), you can go to 16M, 32M, 48M, or 64M.  You can
mix 1M Simms with 2M or 4M Simms to go to 24M or other combinations.

Here's what to buy:

SGI	HU-C32B	32MB Memory upgrade		$9100 (discounted price)

	This upgrade consists of sixteen, 2M byte boards.  A 2M byte board
	is made of double high 1M bit chips.  There are a total of 16 memory
	slots in a personal Iris.  So, this 32M upgrade can be used to take
	one machine to 32M, or to take two machines to 16M.  It can also
	be used to take a machine from 8M to 24M, but note that the 2M
	Simms must be in the first slots.  The disadvantage of this upgrade
	is that it is not possible to purchase just a 16M upgrade.  You must
	buy the whole 32M.  The other disadvantage is that it limits you to
	32M forever unless you through out boards.

Southcoast Electronics
	SC94000/08	4MB Memory Upgrade	$1652

	This upgrade consists of a single 4M Simm made with 4M bit chips.
	By purchasing 8 of these modules, you could take a single machine
	to 32M for a total cost of $13,216.  The advantage of these
	upgrades is that you can take the machine to 64M rather than just
	32M because it uses 4M boards instead of 2M boards.  Also, it is 
	possible to purchase only what you need rather than having to buy
	the complete 32M upgrade kit.  I would expect to see these 4M
	prices tumble in the near future.
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From:	FNAL::LEININGER    "MARK LEININGER at FNALB.FNAL.GOV (708) 840-4776" 
27-AUG-1990 15:20:18.55
To:	NAGY,HERBER,THOMAS
CC:	LEININGER
Subj:	SGI upgrade memory, best price yet

Here is the best price I've seen yet on SGI upgrade memory.  It is 
4Mbit chips at the same price as 1Mbit chips.

Dataram Corp.
1100 Jorie Blvd.
Suite 118
Oak Brook, IL  60521

4MB Memory Module for SGI Personal Iris 4D/20
	Product Number #D/SIMM/4
	Part #61906					$355/each

So, for a 32M upgrade you need 8 boards for a cost of 
8x355= $2840 as opposed to $9100 our price from SGI.
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= Dr. Frank J. Nagy   "VAX Guru & Wizard"
= Fermilab Computing Division/Distributed Computing Dept/Special Projects Grp
= HEPnet/SPAN: WARNER::NAGY (43198::NAGY) or FNAL::NAGY (43009::NAGY)
= BitNet: NAGY at FNAL        = Internet: NAGY at FNALF.FNAL.GOV
= USnail: Fermilab POB 500 MS/234 Batavia, IL 60510