eBay Dash30fx

From: jpero_at_sympatico.ca <(jpero_at_sympatico.ca)>
Date: Mon Jan 29 13:20:17 2001

> Date: 29 Jan 01 17:28:42 +0100
> From: "Iggy Drougge" <optimus_at_canit.se>
> Subject: Re: eBay Dash30fx
> To: Mark <classiccmp_at_classiccmp.org>
> Reply-to: classiccmp_at_classiccmp.org

> I've sent a mail inquiring the hardware guy, he's having a go at another 64-
> pin adapter now. =)

Or if 98% of pins are standard in places, cut few traces and rewire?
This is done for adapting generic 30 pins simms for few certain IBM
machines.

>
> >While the connector may be the same, I'm sceptical that they are compatible;
> >a few years ago I tried an AST 64-pin SIMM in my GVP card unsuccessfully.
>
> What are those AST SIMMs used for anyway?

AST machines and queer machines that use 64pin simms! I have bunch
of those little 64pin 1MB and rare few 4MB usually comes out of AST
486 bravo series cpu on a card types.

1. The # of chips on both 64pin and 72pin are same therefore 32bit
per stick plus 1bit every byte of data for parity = 9 or 18, non
parity 8 or 16 chips, except for some early 12 chip parity simms.

2. There's is no TTL chips anywhere on those AST 64pin simms and
wasn't any non-standard DRAMs either.

AST is bad as Compaq using oddball memory modules in all shapes on
many early to mid 90's compaq machines.

I think that IIfx 60ns or 53ns speed for dram due to 40 or hacked
50 MHz IIfx's?

IBM is not *that* bad like this, 99% of time these machines they
produced since the ps/2 series used standard types except 25/30
series (except make it work by this hack noted above) and few early
to mid 90's used either standard or ECC in same machines. I'm not
including those RS6000 series which is totally different animal to
this topic.

Cheers,

Wizard
Received on Mon Jan 29 2001 - 13:20:17 GMT