Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!cernvax!chx400!hslrswi!aut!nbladt
From: nbladt@aut.UUCP (Norbert Bladt)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Looking for strange 1Mb SIMMs.
Message-ID: <775@aut.UUCP>
Date: 13 Sep 90 07:28:34 GMT
References: <6845.26ed0801@vax1.tcd.ie>
Reply-To: nbladt@aut.UUCP (Norbert Bladt)
Organization: Ascom Autelca AG, CH-3073 Guemligen, Switzerland
Lines: 32

cnolan@vax1.tcd.ie writes:

>I am looking for a peculiar 1Mb SIMM for a Philips model P 3302 '386 PC.

[Text deleted]
>The PS/2 SIMMs are 256k X 36 bit, ie. double word plus parity on each byte.  
>The Philips SIMMs we need are 256k X 32 bit, ie. no parity.  This would 
>account for the lack of pins.  Otherwise the two parts look identical.

>Does anybody know anything about these, I'm sure they are a standard part 
>but Philips locally are charging a ridiculous price for them given today's 
>RAM prices.

Try looking for SIMMs for the MAC. Yes, Apple MAC that is.
They don't use a parity bit per byte. However, I am not sure, whether
you can get exactly the same SIMMs. I once saw a list from a german
dealer which includes 256kx8 bit for MACs. The newer MACs should
have the chips you are looking for.

>Conor Nolan

>Microelectronics Dept.			Fon:	+353 1 772941
>Trinity College.			Fax:	+353 1 772442
>Dublin 2.				Net:	cnolan@mee.tcd.ie
>IRELAND					    or	cnolan@vax1.tcd.ie

Norbert Bladt.
-- 
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Norbert Bladt, Ascom Autelca AG, Worbstr. 201, CH-3073 Guemligen, Switzerland
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