General Instruments D1 CPU in white ceramic PGA

doccybrown · Joined: 03 Oct 2005 Posts: 1736 Location: Germany

Hi,
if anybody has informations about
this unit I`d be really happy! Very Happy

Thanks,
Doccy

pinkie · Joined: 17 Sep 2005 Posts: 971 Location: Shenzhen,GD,China

I don't have any info about it, but I really like this white ceramic PGA cpu.

Great chip! Smile

spongiforme · Posted: Sun May 27, 2007 10:21 am Post subject:

A few months ago someone asked for identification of a similar chip set on a french forum. He provided these pictures:
http://membres.lycos.fr/pironsam53/01a.JPG
http://membres.lycos.fr/pironsam53/01d.JPG

One unconfirmed theory was that they had been manufactured by VLSI for the Bull DPS6000 minicomputer, guessing from this:
http://www.google.com/search?q=Bull+DPS6000+VLSI+CPU+VMMU&meta=

By the way, if someone here has a IEEE library account, I'd like to get a copy of this document....

Clues:
- the Bull marking on one of the chips
- the VLSI logo on one of the chips
- the 1989-1990 timeframe
- indications that the DPS6000 used a 3 chips "processor"
- the unusual VMMU name
- maybe the kind of box the processor was extracted from

Here is the thread where this was discussed (in french):
http://www.deuttai.com/forum/viewtopic.php?t=688&highlight=

and a page on this machine:
http://www.cray-cyber.org/systems/dps6000.php

doccybrown · Joined: 03 Oct 2005 Posts: 1736 Location: Germany

Great, many thanks! Smile

I`ve investigated that the mainframes of the
6000-series were released under various
names by Honeywell, Bull and NEC.
Very interesting is the fact that General Electric was the developer
of the GE-600 series, later when General Electric left the computer business
the mainframe-line was sold to Honeywell and GE-600 was
renamed to Honeywell 6000-series.
The GE-600 / 6000 series mainframes are 36bit-systems!
And I have no doubt that the chip which looks like a 32bit-CPU
can handle 36bit Razz

Here`s my source:
http://en.wikipedia.org/wiki/GE-600_series
/Doccy

Neon_WA · Posted: Thu Nov 26, 2009 4:10 am Post subject:

here is the patent for VMMU technology used for one of the chips in the series

http://www.freepatentsonline.com/5053951.html

doccybrown · Joined: 03 Oct 2005 Posts: 1736 Location: Germany

A very complete description - it will
take some time to understand it lol
Thanks!

debs3759 · Posted: Thu Nov 26, 2009 11:10 am Post subject:

Is there an echo in here?

Admin: I removed doccybrown's duplicate posts. This was fault of the server, not the poster.

6a6ar09a · Joined: 14 Oct 2009 Posts: 444 Location: Belgrade

Those chips are the same as on board that you have bought from me ( on hold... you remember? Smile

). I have found those chips in two different systems. If I remember well, one was DPS 6000, the other one was DPS 7000.

Here they are;

Chiefish · Posted: Thu Nov 26, 2009 8:35 pm Post subject:

Nice chips and very nice looking boards. Very Happy

6a6ar09a · Joined: 14 Oct 2009 Posts: 444 Location: Belgrade

Thanks Chiefish. The first one has been already sold, the other one will be soon Smile

I hope.

Neon_WA · Posted: Thu Nov 26, 2009 9:09 pm Post subject:

6a6ar09a · Joined: 14 Oct 2009 Posts: 444 Location: Belgrade

Hi Neon_WA. Yes, one CPU, one VMMU and one VLSI with marking;

8818V
VM282
VF4540-0001
CIM 78201456
HBULL ITALIA
USA

There are no marking of the board. There are some stickers... but reading is not clear.

Neon_WA · Posted: Thu Nov 26, 2009 9:52 pm Post subject:

6a6ar09a · Joined: 14 Oct 2009 Posts: 444 Location: Belgrade

Well, I don't know too much about marking of VLSI chips but it seams that first line is date-code and second one is serial number... it looks like you said, earlier version Smile

Neon_WA · Posted: Thu Nov 26, 2009 10:12 pm Post subject:

i didnt relise how many DPS7000 models there was Shocked

http://www.bull.com/servers/year2000/gcos7/g752.htm

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