I was given several CPU chips at a yard sale and the people had no
information about these chips. The people moved and I'm not sure how I
can use them or if they're worth the trouble of more research and
installation. I've done some web research but couldn't find any
specific and complete information, even on the manufacturer's web sites
-- it's not the same as having the original box with manual and if
necessary, an install disk -- we all know that story.
===
AMD
N80L286-10/S
H 924CPPG
(m) (c) INTEL 1982
This 1-inch square CPU chip has 17-pins on each 4-sides. It's not the
normal straight pins, but rather rounded, curved connectors that plug
into a matching socket.
I had a Compaq Deskpro 386x which I recently discarded for proprietary
design issues, but when I had it the motherboard was labeled with an
unfilled math co-processor socket into which this AMD N80L286-10/S CPU
chip could fit, but I don't think this chip is supposed to be used as a
math co-processor because it's not labeled "80387" which I think is a
real math co-processor.
AMD has no information about this chip on their web page.
Could this be a "make it a 286" for an older 8086/88, XT? Ha! Make it a
286!
What is this CPU chip used for?
===
AMD
N80L286-10/S
H 938DC9F
(m) (c) INTEL 1982
This one looks the same as the CPU chip mentioned above, but it's seated
in a small interposter socketed board (voltage regulator adapter) --
both the chip and the interposter use the same rounded, curved
connector/socket; not straight pins. On this interposter is also
another chip 25-pins on each 4-sides: 50G6663, 1N20L17L3 (c) INTEL 1985
(c) IBM 1992.
AMD has no information about this chip on their web page.
Is this CPU chip more complete with a required interposter, that the one
above is missing?
What is this CPU chip used for?
=====
SIEMENS
SAB
80286-A
(c) INTEL '82
This is a 1-1/4-inch square CPU chip and has 68-straight pins.
I thought the 286 chips were soldered onto the motherboard and wouldn't
use a socket as this chip would require.
What is this CPU chip used for?
===
H IIT
3C87-40
(c) 1988
This is a 1-1/4-inch square CPU chip and has 68-straight pins. Some
research I uncovered on the web was that this is an Intel 386 clone with
less than 100% compatible instruction set.
Could this be just a Mhz upgrade CPU chip, for say if someone had a
386DX-25Mhz and wanted to upgrade to 40Mhz?
What is this CPU chip used for?
===
ADVANCED MICRO DEVICES
Am386 DX-40
NG80386dx-40
D 310MVGD
(c) AMD
This is a 1-inch square CPU chip and has 132-straight pins on the bottom
of an interposter or maye it's not technically an interposter at all.
There are no other chips on the interposter. The CPU chip is soldered
onto the interposter, and the interposter has the straight pins.
AMD has no information about this chip on their web page.
Could this be just a Mhz upgrade CPU chip, for say if someone had a
386DX-25Mhz and wanted to upgrade to 40Mhz?
What is this CPU chip used for?
===
Cyrix
Cx486
S40
FasCache
Cx486S-40-GP
(c) 1993
This is a 1-3/4-inch square CPU chip and has 168-straight pins on the
bottom. Also included is a heat sink, but it's not attached because the
adheasive isn't sticky anymore.
Cyrix apparently is no longer in business and was purchased by Viatech
who provides no information about this chip on their web page.
I thought Cyrix CPU chips require special software and not all original
motherboard BIOS will support it.
Could this be just a Mhz upgrade CPU chip, for say if someone had a
486sx-25Mhz and wanted to upgrade to 40Mhz?
What is this CPU chip used for?
===
ADVANCED MICRO DEVICES
Am5x86 - P75
AMD-X5 - 133ADZ
A 9632APE
(c) AMD
3.45 volt
Designed for Microsoft Windows 95
This is a 1-3/4-inch square CPU chip and has 168-straight pins on the
bottom. Also included is a heat sink, but it's not attached because the
plastic bracket that holds it onto the chip is cracked -- I think I
could fix the bracket with Super Glue.
AMD had some information on their web page about this chip "X5"; not the
better K5 -- not much information though. Mainly that this was a
133-Mhz, 16K cache upgrade for 486 PCs limited to a 33Mhz bus speed.
I thought AMD CPU chips require special software and not all original
motherboard BIOS will support it.
I don't understand if this CPU chip is worth the trouble because isn't
performance speed greatly related to bus speed -- although it's marketed
as 133Mhz the actual performance depends on bus speed and since it's
limited to a 33Mhz bus than it wouldn't be any faster performance to an
everyday user (not a rigged lab test) than an Intel 486DX-66Mhz PC --
although AMD says otherwise.
What is this CPU chip used for?
===
Any information would be greatly appreciated as I'm unsure if I should
keep these for something useful or if they're so old that they're
useless. Any comments?
*** |===| PACKARD BELL * Pack-Mate Legend 386x ***
* __|___|__ 386sx-16Mhz, 4MB, VGA-256K, DOS 6.22/WFW 3.11 *
* |_____==_=|~~ MY OTHER COUNTING BOARD IS AN ABACUS! *
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