> I just passed on the optical mouse and some keyboards for the Sun's.
Passing on the optical mice or keyboards (type 3 or 4) is no great shakes.
However...
Passing on Sun optical mouse pads for type 3 or 4 mice is a crime
punishable by death. They are unique _two_ color pads (the horizontal
stripes are a different color from the verticle ones) that Sun does not
make anymore (contrary to Sun Direct's sales people, the pads they sell
are for the normal type 5 mice).
In short, the things are getting quite rare.
> I will
> be going back next Saturday to pick up some other things I will see if they
> still have them. You will need a shoebox (has the HD) to really do anything
> other then run the build in diagnostic. I get back to you
You can boot the thing off a network - no local disk required.
William Donzelli
william(a)ans.net
I remember when I wouldn't take a 286. I needed POWER. Like a SERVER.
How 'bout a 486??? THAT WOULD LAST UNTIL THE 21st CENTURTY TOO!!! IT COULD
RUN WINDOWS 3.1 with NO RAM ERRORS!!! And then when upgrading to Windows
95, I remember the guy there specifaclly falling down laughing, resulting
in purchasing 16MB of RAM (Then at $10 a MB), to add to the 12 I had, along
with a 486 DX/2 processor. I doubt that the 432 would actually take it.
But I think that Intel aimed it at the wrong market. The Digital Alpha
(Recently aquired by Intel, with it's RISC... yes, RISC technology) has had
some success, with 600 MHz of power in a single chip and x86 "translation
software" written by Digital. Also, there is a version of Windows NT 4.0
made ONLY for Alpha's, so the translation software is not used there.
Microsoft writes programs like Internet Explorer for Alphas, but they're
usually "a month late". Intel might have just bought it to stamp it out,
but my guess is they're aiming to do something with the RISC market, they
could be attempting to lower the Alpha's power down to H/PC levels and then
WINDOWS CE. Maybe they'll take the 300 MHz version, that was avaible in
1995. If Apple can get 150 Mhz into a handheld, why can't Intel? But back
to classics. Would the 432 be capible today if it were given a second
chance?
One last thing. I remember something about a huge warehouse filled with
classics. Has anyone heard since?
Ciao,
Tim D. Hotze
<Wrong. For a while (in the early 90's) I subscribed to a magazine called
<Defense Electronics. The military had things like 50ns RAM available then
<They are way ahead in many areas; they can afford to (or used to be able to
<anyway) throw money at things, and they often got first dibs.
fast parts...
keep this in mind: Good, fast, cheap, pick any two.
In 1982 NEC and Intel sold 1kx4 (2149), 4kx1(2147) and 16kx1(2167) these
were static mos parts that were anywhere from 35ns to a slow 70ns. They
were widely available and about 7-9x the cost of the 4116 16kx1 dram. The
problem was that '83 brought 64kx1 parts that were as cheap as the 4116,
faster than the 4116 but were about 270ns-Tcy/200ns-Tcas. When your
building a system the 4164 (8 of them) used roughly 240ma. the same memory
using the super fast 2167 (32of them) would eat a whopping 2.16 Amps! Speed
costs! It would also produce more heat.
In late '83 I built a system using a 8088/8mhz with 256k of 2167s besides
being amazingly fast. However 128 of those 2167s tended to heat up the
place and their cost was $768 compared to $128 for the fairly new 4164 and
the $96 for the very new 41256. Also using the newest 256k part would fit
4mb of ram where 256k of static parts fit and still use less than half the
power.
By 1990 32kx8 static rams were in the sub 30ns region. Drams were fairly
fast for page mode but their requirement to have the address stuffed in in
two pieces will add time to the ability to access in exchange for power
savings, pins and packing density. Dram was never as fast but usually
their density was the win. For the current generation of 200mhz and faster
systems cache is barely able to keep up. look at the cost of 16mb of dram
compared to 512k of fast cache ram.
Allison
Anybody have any information pertaining to a Visual Technologies unit # Visual
1083? I think its also called a "Commuter".
Thanks in advance.
Sam Uncler
At 05:55 PM 11/3/97 +0300, you wrote:
>more. But I need a basic list of systems that are 1. Easy To Find 2.
>Important enough to draw attention.
1. Depends greatly on where you are. (TI & Tandy common as dirt in Texas,
less common in, say, Bahrain.)
2. Depends greatly on the audience. (Common bloke: Apple I, Osborne 01,
Altair, a couple others. Me: Atari Portfolio, Model 100, NEC Starlet,
Outbound Laptop, etc.)
I would seriously recommend checking around on the web for the various
virtual museums out there. If you don't know where to start, try
<http://www.chac.org/> and check out the list of links.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)ricochet.net that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
On Sat, 1 Nov 1997 12:43:58 -0500 (EST), kstumpf(a)unusual.on.ca
remarked:
> How many computer collectors does it take to change a light bulb?
> Forty.
^^^^^
Shouldn't that really be a power of two, or maybe some bizarre
permutation of 12, 16, 18, or 36?
And, of course, the punch line:
> One to change the light bulb and thirty-nine to chat about how good
> the old one was.
______________________________________________________________________
| | |
| Carl Richard Friend (UNIX Sysadmin) | West Boylston |
| Minicomputer Collector / Enthusiast | Massachusetts, USA |
| mailto:carl.friend@stoneweb.com | |
| http://www.ultranet.com/~engelbrt/carl/museum/ | ICBM: N42:21 W71:46 |
|________________________________________________|_____________________|
I wouldn't be so sure about the military part... their MIS seems to either
have gone to school and got a degree in dentistry or learned on the
Eniac.... corporate will always be faster than military. There is no
"secret operations" that deal with these areas of computers. But maybe a
company like Microsoft or maybe IBM had someone design something
faster..... we'll be at 15ns soon enough anyway. We've gone from 70ns in
late 94 to only 45ns today, and SRAM has become so darn fast.... by the
way, does anyone know about overclocking an 8088 (the 8mhz variety), by
NEC, not Intel?
Hope that this input helps,
Tim D. Hotze
----------
From: jpero(a)cgo.wave.ca
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Subject: Re: Help Identifying RAM Chips
Date: Monday, November 03, 1997 3:26 AM
> I disagree with both of you. 300ns is more like the 70's to me. Even
the
> 1982 IBM PC XT had 200ns RAM. A year later adding a third to that figure
> makes no since. But 300ns might be right; as I would KILL for 30ns RAM
in
> a Pentium 233!!!! Even the fastest EDO RAM (Slightly outdated, but still
> recent) is at 50ns; so 30ns makes ZERO sense.
>
Correct, the number 1 is 64k and I bet that is for video use i think
because: I have old machines like this designs usually uses big 24
dip static memory or dynamic 64k in 4 bits form maybe. 300 Could be
static memory more likely than dynamic type which might be 8k x
8bit in a 24 or 26 pin fat package and mostly likely found in video
section. Oh yeah, I'm very sure that was normal configuration for
that CGA video type for that time in 1983's, that should have 2 of
them to make 16k.
Other last 3 chips, they're all 256k x 1bit at 150ns. Note! Change
all 9 chips in a bank to keep reliablity which you might have
experienced having problems suppose if you had just did one chip...
150ns could be 8mhz because 4.77mhz takes exactly 210ns per
instruction in 8088 so IBM used 200ns chips.
Oh, Tim, I would be surprised if military accidently released 15ns in
early 1980's Oh no! :) NOT! The fastest current drams of any kind
was 45ns and mostly used in video cards for no reason where 60ns
would do well...static chips did not hit 30ns mark for nearly 7 years
later, I think.
Troll the hardware guy.
> ----------
> From: Tim Shoppa <shoppa(a)alph02.triumf.ca>
> To: Discussion re-collecting of classic computers
> <classiccmp(a)u.washington.edu>
> Subject: Re: Help Identifying RAM Chips
> Date: Monday, November 03, 1997 5:35 AM
>
> > Your chip #1 is a 64k chip speed of 30ns, chips 2&3 are 256k at 150ns
> speed.
> ^^^^^^^^^^^^^^^^^^^^^^
Big nip to save bandwidth...
Yes right, Tim.
At 10.36 04/11/97 +0000, you wrote:
>Which reminds me. Which word lengths have been used by (binary) computers?
>Off the top of my head :
>
>4 (Intel 4004, etc)
>8 (Far too many to list)
>12 (PDP8, PDP12, etc)
..omissis...
>What others?
9 (Texas 99/4, 990/10, TMS 9900)
86 (Intel Docet again)
Riccardo
At 06:13 PM 11/3/97 +0300, you wrote:
>I wouldn't be so sure about the military part... their MIS seems to either
>have gone to school and got a degree in dentistry or learned on the
>Eniac.... corporate will always be faster than military. There is no
>"secret operations" that deal with these areas of computers. But maybe a
Wrong. For a while (in the early 90's) I subscribed to a magazine called
Defense Electronics. The military had things like 50ns RAM available then.
They are way ahead in many areas; they can afford to (or used to be able to,
anyway) throw money at things, and they often got first dibs.
I mean, if you had developed a spiffy new toilet seat, and were going to
sell it for $50 each, but the military guys showed up and said "we'll buy
10,000 of them for $10,000 each, but you can't tell anyone about them", what
would you do?
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)ricochet.net that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
e.tedeschi wrote:
>Yes, the darker colour +2 is really a +2a which Amstrad decided to make
>incompatible with the other Spectrum extensions.
Is his why some (but not all) of my old spectrum 48k software will not load
on this one?
Regards
Pete
#include <std_disclaimer>
> > > Absolutely. The wire in question is between pins CA1 and CB1 on the _same_
> > > slot - the slot the control cart of the UDA50 is in. It's a little loop of
> > > wire, and is quite difficult to find the first time.
> >
> > Okay... I'll give it a shot! But if I foul up, I'm stuck - I don't have
> > a wirewrap tool.
>
> You can always solder a jumper back in place.
Oh, come on, Tony, _please!_
Individual socket pins from various types of connector (including D I
think) fit quite well over these backplane pins. Crimp or solder a
short length of wire to two of these and hey presto! A removable NPG
jumper. NB take care that these don't stick out so far as to foul on
the case...
Philip.
I got the 34, and I just located a UDA50 for it, known working.
Cost me $30.
I plugged it in, and connected the RA81. It's cabled like this:
+----+ +-----+
|1134| | RA81|
+----+ +----|+
1 /-----3/
| |
|----****
| |
+2+
Cable 1 is the cable from the UDA50.
Cable 2 is a normal SDI cable
Cable 3 is attached to the RA81
**** is a 4-port SDI bulkhead plug. I have the UDA going in port 1, the
patch going from port 1 to port 3, and the RA on port 3.
I boot RT11SJ from a RX02 (Because I don't have a DU bootstrap)
and tell it "boot du0:"
The machine sits there. If I look, 2 led's come on the 2nd (terminator
side) uda board, the first 2 closest to the PS. They strobe normally when
the machine starts. They stay that way. If I halt the CPU, the BUS ERR
light comes on. Did I foul up the cabling, or is the UDA or drive toast,
or what?
<The Intel 8088 was 8 bits, the 8086 16; the 80x87, as I recall, are 80
<bits internally (another one for your list, Tony, if coprocessors
Generally there are several parameters instruction word size, largest data
word size, internal bus size and external bus size. Some are archtectually
decided.
The 8088 was 16 bit. What you have is instruction size (8bit!), register
size(16bit) and databus size(8 or 16). the 8088 and 8086 are the identical
processor save for the data bus is 8bits on the 8088 as small systems
economy vs speed measure. The processor assembles the bytes as needed
internally. Advanatage of an 8bit bus is cost and the expense of some
speed. Motorola did that with the 6800x, it was internally 32bit, but
available as 8/16 bit bus and sold as a 16 bit processor.
<I believe that there are some CPU chips now with 64-bit internal buses.
<Any advance on 64?
Alpha early was external 64bit and later external 128bit but the register
structure is 64bit.
<At the other end, do the processors in the AMT DAP count as 1-bit
<machines? Or are they bit-slices of a 32 bit machine? Or a 1024 bit
<machine?
Unknown here.
Allison
< 9 (Texas 99/4, 990/10, TMS 9900)
the ti machines were all 16bit.
< 86 (Intel Docet again)
???? Intel has done 2(bitslice), 4, 8, 16, and 32.
1bit Moto 14500 (actually 1bit data and 4 bit control word)
4bit ti1000, NEC uCOM4, NEC 75xx series, 4004, 4040 all had 4 bit data
paths but the instruction words were 8bit!
22bit Perkin Elmur
60bit CDC
64bit DEC Alpha
Allison
In the past I have seen a _little_ discussion here about how some
companies, such as Tandy (with their CoCo), and other companies should
re-release their old 8-bit computers targeted towards the current kids
community... similar to what v-tech does with their kids computers.
I also heard a comment recently that said there is no way Apple computers
would ever license someone else to produce their computers... I beleive
the discussion was regarding the black case Apples.
Anyway, I recently saw in Christmas Catalog that Tiger Computing is
selling a computer, that takes cartridges only, for about $200. You hook
it to your tv, and most of the available software is original Apple titles
by MECC, a popular Apple educational software developer. It even says in
the description that this little lap-top size unit is licensed from Apple,
and based on Apple //e technology!
Even more, you can buy a cheap 14.4 modem cartridge that allows internet
access. Does anyone have one of these Tigers? Just curious.
Also, still looking for a Laser 50 (Sam Ismail? Bill? etc., etc., and am
curious for more information on my Laser 310 I just picked up. Maybe a
trade straight across?
Well, my $.02 worth,
CORD
//*=====================================================================++
|| Cord G. Coslor P.O. Box 308 - 1300 3rd St. Apt "M1" -- Peru, NE ||
|| (402) 872- 3272 coslor(a)bobcat.peru.edu 68421-0308 ||
|| Classic computer software and hardware collector ||
|| Autograph collector ||
++=====================================================================*//
Also, 88 (8088), 87 (487, 8087, etc.) and many other numbers. With macs,
there's a whole slew of numbers that I don't want to get into.
Tim D. Hotze
----------
From: Riccardo Romagnoli <chemif(a)mbox.queen.it>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Subject: Re: Computer collecting humor.
Date: Tuesday, November 04, 1997 4:49 PM
At 10.36 04/11/97 +0000, you wrote:
>Which reminds me. Which word lengths have been used by (binary) computers?
>Off the top of my head :
>
>4 (Intel 4004, etc)
>8 (Far too many to list)
>12 (PDP8, PDP12, etc)
..omissis...
>What others?
9 (Texas 99/4, 990/10, TMS 9900)
86 (Intel Docet again)
Riccardo
I disagree with both of you. 300ns is more like the 70's to me. Even the
1982 IBM PC XT had 200ns RAM. A year later adding a third to that figure
makes no since. But 300ns might be right; as I would KILL for 30ns RAM in
a Pentium 233!!!! Even the fastest EDO RAM (Slightly outdated, but still
recent) is at 50ns; so 30ns makes ZERO sense.
----------
From: Tim Shoppa <shoppa(a)alph02.triumf.ca>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Subject: Re: Help Identifying RAM Chips
Date: Monday, November 03, 1997 5:35 AM
> Your chip #1 is a 64k chip speed of 30ns, chips 2&3 are 256k at 150ns
speed.
^^^^^^^^^^^^^^^^^^^^^^
I disagree with the 30ns figure; why the heck would a Compaq
Portable from 1983 have 30ns RAM in it? 300ns seems
far more likely, and is perfectly consistent with the numbering
>from manufacturers of that era.
> The last set of tell the the size and speed (64-3 and 256-15). John
> >I have two original Compaq Portables, both of which are giving POST
> >errors when they boot which indicate bad RAM. I have gone through a few
> >...
> >Chip #1:
> >Hitachi
> >1818-3006
> >Japan 8332U
> >HM4864P-3
Tim. (shoppa(a)triumf.ca)
the following are for trade or sale by a guy here in St. Paul MN. PLEASE
e-mail him directly at sloan003(a)maroon.tc.umn.edu
Apples - IIc with case, monitor, power supply
Platinum IIe with Duo drive, platinum monitor
IIplus with amber monitor, 2 drives
IIe with monitor, one drive
KB's - 2 MAC Plus type, 2 MAC II type, 1 MAC 128 type
Mice - 2 old type early MAC's
MAC Plus computer
Apple Imagewriter II printer
2 Conner 40meg HD
10 MAC SE manuals new in package
Tons of new manuals for MAC's Apple II's and other Apple
products(ask for list)
Appletalk card new
Mac II network card
>Date: Mon, 03 Nov 1997 19:34:29 -0600
>To: classiccmp(a)u.washington.edu
>From: "John R. Keys Jr." <jrkeys(a)concentric.net>
>Subject: Re: Beginners Need Help
>
>Pickup a copy of A Collector's Guide to Personal Computers and Pocket
Calculators by Dr. Thomas F. Haddock. It's a great book. John
>At 05:55 PM 11/3/97 +0300, you wrote:
>>Hello. I'm not so much a classic specialist as a computer specialist, as I
>>love both old and new computers. I'm not a proffesional, but do know
>>BASIC, DOS and all other kinds of stuff which the fast-moving stream of
>>technology has left behind, unfortunately. But anyway, I didn't know jack
>>about computers in the early 80's, other than what the average Joe knew:
>>Keyboard, commands, annoying. But since '92, I've been learning more and
>>more. But I need a basic list of systems that are 1. Easy To Find 2.
>>Important enough to draw attention.
>> Thanks,
>>
>> Tim D. Hotze
>>
>>
>
Sorry it took so long. I tried mailing you, but there was an error.
----------
From: PG Manney <manney(a)nwohio.com>
To: photze(a)batelco.com.bh
Subject: Re: The link you sent
Date: Thursday, October 30, 1997 6:01 PM
>It's really comforting to know that some people have consionace.
>Thanks. I'm trying to raise my children with consciences, too. We're
>Christians, and we feel that treating people *right* is very important
Those people will be the future leaders of our world.
>I hope
>that you're not in a hurry: A friend's giving me a new board, and they say
>that it could take some time to get it, but as soon as I get it, they new
>board will get shipped to you. Don't worry, I won't give it to anyone
>else.
I always need motherboards and drives (got any old IDE drives around?),
because I buy and sell computers. We're out here in the wilds of Ohio
(USA),
where many people have older systems...I even sold a Commodore the other
day!
I have an old IDE drive, it's a Segate 41 MB. It says ST-251, then on a
seperate sticker it says -1 right next to the first one. Serial number is
25534738. It's the large kind, like they had back in the early 80's.
If you repair computers, I have a additional 486/SX 33 that I could throw
in.
>remember the XT being the first IBM, but I might be wrong.
The IBM PC (model 5150, IIRC was the first PC...you can tell that one from
the TX sinc the PC had a small funny keyboard (very small, oddly placed
"Enter" key), 5 slots (the XT had 8) and a Cassette plug next to the
keyboard one. Also, the case said "IBM Personal Computer" instead of "IBM
Personal Computer XT". The motherboard was redesigned in the XT (the PC,
for
example, had 2 banks of DIP switches on the motherboard, instead of one).
The XT counted out memory when it booted up, the PC just gave you a
flashing
cursor to stare at.
Actually, the IBM 5100 was the first desktop computer. It had 8" drives, a
dedicated printer and all that...it bombed, and IBM didn't try again until
the PC.
>Lessee...I have several Commodores, a couple of VIC-20's (one in original
>box with original packaging, used once.), a couple of Apples... two or
three
>PC's and an XT (I think). It would be better to send *anything* but the
>IBM's, because everything else is plastic-cased, and therefore lighter.
>Still, you're the customer!
I'm new at collecting classics. What is a VIC-20? And what model of
Comodore, and Apple? I have a TV screen, I even have one in the guest
bedroom that's used once in a blue moon. Didn't the older Apples up to the
IIGS have attached monitors? (I remember a few Macs that had one later
than that...)
>The Post Office tells me that 44 lbs will cost $89 US to send to you. If
you
>have a TV screen, you can save on the cost of shipping a monitor for an
>Apple/Commodore/anything else. (The IBM will work a TV screen with the
right
>card, but colors are funny).
Thanks,
Tim D. Hotze
You are right it was a typo on my part.
At 06:35 PM 11/2/97 -0800, you wrote:
>> Your chip #1 is a 64k chip speed of 30ns, chips 2&3 are 256k at 150ns speed.
> ^^^^^^^^^^^^^^^^^^^^^^
>
>I disagree with the 30ns figure; why the heck would a Compaq
>Portable from 1983 have 30ns RAM in it? 300ns seems
>far more likely, and is perfectly consistent with the numbering
>from manufacturers of that era.
>
>> The last set of tell the the size and speed (64-3 and 256-15). John
>> >I have two original Compaq Portables, both of which are giving POST
>> >errors when they boot which indicate bad RAM. I have gone through a few
>> >...
>> >Chip #1:
>> >Hitachi
>> >1818-3006
>> >Japan 8332U
>> >HM4864P-3
>
>Tim. (shoppa(a)triumf.ca)
>
>
Would anyone be interested in C-64 stuff and a bunch of tapes?
I have a 1541 drive, and okidata printer, a bunch of famous programs (space
rogue, LOGO, bank street writer, GEOS, F-14 Tomcat,etc.), a few joysticks, a
Koala pad with software. 300 bps modem. No actual C-64.I don't want to ship
this stuff, but I'll give it for free to anyone who picks it up in Boston,
MA, USA.
Also, I have some reel to reel tapes, some labelled ADES, NOVA controller,
and other things. Most are dated 1980's, 1990's. I'll give them away too.
At 05:44 AM 10/26/97 +0300, you wrote:
>I have a similiar problem: Due to the large size of the XT style
>motherboards, my desk devoted to classic computers isn't big enough. I can
>fit the computer on, the monitor on the computer, and the keyboard on the
>floor. When you try to type, it's not fun. (Type a command. Stop. Before
Look into the monitor arms that let attach to your desk and support your
monitor above the desk/computer. Many of them have a simple wire rack that
pulls out in front to hold a keyboard. (Basically, it's just a square U of
metal that slides in and out.)
There are other advantages to this as well. If you're working on several
computers that use the same type of monitor, you don't need to move the
monitor to swap CPU's. Also, it lets you use the monitor-over-CPU set up
for machines that aren't flat boxes (like a C64, atari 800 or SOL-20.) You
can also swing it out of the way if you want to work on the computer.
>PS- How do you post an origional message? Do you just send one to9
>classiccmp(a)u.washington.edu , or somewhere else?
Yep.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)crl.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
Okay, thanks, but I need to know jumper settings. There is a set of four
jumpers accessable in the back when the graphics board is installed.
Thanks,
Tim D. Hotze
----------
From: jpero(a)cgo.wave.ca
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Subject: Re: Need Jumper Settings...
Date: Monday, November 03, 1997 2:27 PM
"CHIPS" is Chip & Technologies.
Well, Sounds like you gotten a great chipset type: it can emulate EGA
driving any monitor TTL, CGA while in EGA. Very good.
I think C&T first chipset was this kind that allowed low cost
computers to happen. Then C&T did in 286 and 386 chipsets including
cached types as well. Not too bad chipset for 286 but tends to be
bit slower in 386 especially at higher mhz.
Now C&T is focusing only on video chipsets for portable applications
only mainly driving flat panels.
Troll
<company like Microsoft or maybe IBM had someone design something
<faster..... we'll be at 15ns soon enough anyway. We've gone from 70ns in
<late 94 to only 45ns today, and SRAM has become so darn fast.... by the
I've been in the technology for 20 years and 15 NS up until the 90s was
bipolar or ECL territory and those technologies were not dense enough to
yeild large memories or cheap. There were static mos/cmos parts that
were fast but in the mid 80s 70ns was still very quick and 45ns was at
the corner of the technology.
<way, does anyone know about overclocking an 8088 (the 8mhz variety), by
<NEC, not Intel?
By how much? 10% is generally doable and depending on the mask and age of
the part it may have been faster than marked. The problem is everything
around the 8088 has to run faster and the eproms/rams are likely unable to
keep up as 10mhz was state of the art for the time and even then wait states
had to be inserted to keep things in sync. I'd recommend not
trying as the amount to could get is not significant enough and you may
cause other problems in the process. If sped is a must find an AT or 386.
Even a 386sx/16 is at least 3-5x faster!
Allison