| View previous topic :: View next topic |
| Author |
Message |
gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
|
 Posted: Thu Feb 13, 2003 9:08 am Post subject: Help identify the chips |
 |
|
Hi!
I need help identifying these two IBM chips:
They are in staggered PGA package, 304 pins (if I didn't make a mistake), and came with small heatsinks. I found them listed on this website between other processors:
http://scottgutshall.mystarband.net/chips.html
Also, similar looking chip with different part number is called "IBMPentium" on cpushack.net website:
http://www.cpushack.net/images/IBMPentium.jpg
Thanks!
Gennadiy |
|
| Back to top |
|
 |
Grampa
Joined: 10 Feb 2003
Posts: 56
Location: Erlangen, Germany
|
| Posted: Fri Feb 14, 2003 4:19 am Post subject: |
|
|
This chip has been the root of many speculations, the same question arose in my forum without any solution, but several possibilities - it might be a CPU from a PS2-machine or from a network card.
If someone is interested - on Alfrad Arnold's website about PS2-history there are a lot of pictures: http://john.ccac.rwth-aachen.de:8000/alf/
- Grampa
_________________
visit my world of slow chips |
|
| Back to top |
|
|
Grampa
Joined: 10 Feb 2003
Posts: 56
Location: Erlangen, Germany
|
|
| Back to top |
|
|
Komz
Joined: 02 Feb 2003
Posts: 370
Location: PL
|
|
| Back to top |
|
|
gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
|
| Posted: Fri Feb 14, 2003 8:16 pm Post subject: |
|
|
Grampa - thank you for the link. I really liked pictures of a living room of the guy 
Karolo - your chip is probably IBM 80386 16 or 20 MHz. Edgar Elsen (www.edgar-elsen.de) lists it as 80386 processor, and I also found two other references for this chip as IBM 80386DX processor, but I couldn't find any reliable information about it's speed.
Gennadiy |
|
| Back to top |
|
|
gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
|
| Posted: Wed Apr 23, 2003 11:19 pm Post subject: |
|
|
I received a few IBM 80386 chips, including the same chip Karolo has (51F1784ESD). There is a reference in newsgroups about this chip - one guy mentions the type of motherboard this chip was on. This motherboard type uniquely identifies not only processor type, but also processor speed. Well, I found information about computer with exactly this motherboard, and it's 80386DX-20 computer. I guess the 51F1784ESD chip is 80386DX-20.
I have another IBM (probably) 386 CPU I wasn't able to identify:
The number on the chip is 51F0352ESD. If anybody has any information about this chip please let me know.
I also received one broken IBM 80386 chip. Because it looks pretty cool without cover I decided to take it's picture - it's the chip on the left.
Gennadiy |
|
| Back to top |
|
|
Windmiller
Joined: 24 Jun 2005
Posts: 1716
Location: Chapel Hill, NC
|
| Posted: Sun Oct 07, 2007 6:13 pm Post subject: |
|
|
| I just received some of these 51F0352ESD. Did anyone ever find out more about them? The person I got them from pulled them out of working units along with some 51F1784ESD. |
|
| Back to top |
|
|
Telcontar
Joined: 11 Sep 2006
Posts: 61
|
| Posted: Sun Feb 10, 2008 5:40 pm Post subject: |
|
|
Yesterday I found a mysterious IBM 80386SX CPU in a broken PS/2 machine.
It's printing says:
50G6950
IBM 14 PQ
IL48F64P5
Does anybody have information about the clock and the manufacturing date of this processor?
I also have another beautiful IBM chip I don't anything about:
What is this chip at all? Pls help me!
Thank you in advance! |
|
| Back to top |
|
|
Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
|
| Posted: Sun Feb 10, 2008 5:45 pm Post subject: |
|
|
| IBM 51F1784ESD is 386DX-20 |
|
| Back to top |
|
|
Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
|
|
| Back to top |
|
|
el_gecko
Joined: 25 May 2005
Posts: 1553
Location: Nice, France
|
| Posted: Sun Feb 10, 2008 7:49 pm Post subject: |
|
|
| Telcontar wrote: |
I also have another beautiful IBM chip I don't anything about:
What is this chip at all? Pls help me!
Thank you in advance! |
Does it count 361 pins?
_________________
My microprocessor collection: The Gecko's CPU Library |
|
| Back to top |
|
|
Telcontar
Joined: 11 Sep 2006
Posts: 61
|
| Posted: Tue Feb 12, 2008 6:46 pm Post subject: |
|
|
| el_gecko wrote: | | Telcontar wrote: |
I also have another beautiful IBM chip I don't anything about:
What is this chip at all? Pls help me!
Thank you in advance! |
Does it count 361 pins? |
It has 14x14 pins, with neither missing, nor key pin. |
|
| Back to top |
|
|
Telcontar
Joined: 11 Sep 2006
Posts: 61
|
| Posted: Tue Feb 12, 2008 6:47 pm Post subject: |
|
|
Thank you very much! |
|
| Back to top |
|
|
UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
|
| Posted: Tue Oct 07, 2008 2:56 am Post subject: IBM multichip module |
|
|
| Telcontar wrote: | Yesterday I found a mysterious IBM 80386SX CPU in a broken PS/2 machine.
It's printing says:
50G6950
IBM 14 PQ
IL48F64P5
Does anybody have information about the clock and the manufacturing date of this processor?
I also have another beautiful IBM chip I don't anything about:
What is this chip at all? Pls help me!
Thank you in advance! |
Hello,
your beautiful IBM chip is a multichip module used in IBM 43xx computers (4341, 4361 and so on). It holds a maximum of nine chips.
Look at this IBM document: http://www.research.ibm.com/journal/rd/255/ibmrd2505X.pdf, page #622.
IMHO a very nice IBM product!
Paolo |
|
| Back to top |
|
|
Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
|
| Posted: Sat Oct 17, 2009 8:08 pm Post subject: |
|
|
| Telcontar wrote: | Yesterday I found a mysterious IBM 80386SX CPU in a broken PS/2 machine.
It's printing says:
50G6950
IBM 14 PQ
IL48F64P5
Does anybody have information about the clock and the manufacturing date of this processor?
|
I know this is an old thread, but better late than never 
The processor was manufactured week 48 1992
_________________
There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
http://www.x86-guide.net/Neon-WA/en/collection.html |
|
| Back to top |
|
|
|
![[ Hidden ]](https://cdn.cpu-world.com/forum/templates/CPUWorld/images/lang_english/icon_email.gif "[ Hidden ]"){kind=icon}
