At 03:57 PM 1/6/98 +0300, you wrote:
>586 compatible processor for 486/DX4 motherboards that works at 133MHz.
>Those go for around $500.
I had one of those. Had it overclocked to 160mhz, beat the pants of a P100.
I think I paid $150 for the board and chip about a year and a half ago. I
wonder what that'll look like next to the systems 10 years from now?
-John Higginbotham-
-limbo.netpath.net-
Found on Usenet. Please respond directly to him if you can help.
-=-=- <snip> -=-=-
Path: Supernews70!Supernews69!not-for-mail
From: Dale Toney <dale(a)blueridge.net>
Newsgroups: vmsnet.pdp-11
Subject: Looking for a PDP-11
Date: Wed, 07 Jan 1998 15:07:10 -0500
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Hi,
I am in North Carolina and looking for a used pdp-11 to buy. I broke my
teeth in on pdp-11's and vax/vms, and would like to find one to tinker
with. Any help in locating one would be appreciated.
thanks,
--
Dale
mailto:dale@blueridge.net
-=-=- <pins> -=-=-
-=-=-=-=-=-=-=-=-
Bruce Lane, SysOp,
The Dragon's Cave BBS (Fido 1:343/272)
kyrrin2 {at} wiz<ards> d[o]t n=e=t
"...No matter how hard we may wish otherwise, our science can only describe
an object, event, or living creature, in our own human terms. It cannot possibly
define any of them!..."
<I didn't put the 386 in the XT socket. I just pulled the clock xtal from
<386 and put in in the XT. It wasn't a real IBM PC, it was a clone.
<-------
Bit more believable. A 25mhz crystal used on the 8284a nets 8.333 at the
processor clock input and that would make a XT-turbo. The problem with
such a speed up is that the peripherals and the ram have to be faster as
well to keep up.
I have a Leading Edge Mod D that I've tried that on and 6mhz(18mhz
crystal) was possible before needing to add wait states for IO and
memory. With one wait for both IO and mem 8mhz was doable. I wasn't
overclocking the cpu as it was a 10mhz V20. I may add at 6mhz the
average 8088 was likely to still be there as they were good for a shade
over 5mhz for the slow parts.
Allison
How fast did it run?
In a message dated 98-01-07 17:05:26 EST, you write:
<< [Overclocking]
I once had a PC/XT overclocked to 25 or so MHz. It caught fire...
Basically, I just pulled the chip marked 25 MHz from a dead 386
and put it where the XT's ship was. It took about 10 minutes to start
emitting black smoke.
This was before I knew they were useful...
------- >>
At 17:15 6/01/98 -0500, PG Manney wrote:
>> > MFM (early 80's?)
>>
>> Very early 80's, I think, for the ST-506.
>>
>> > RLL (late 80's?)
>>
>> I tend to think of this as a minor variation of MFM, myself :-)
>
>Not quite. The interface is the same (ST-506/412), but the encoding is
>different.
>
>RLL-encoded ST-506/412 drives were finicky, especially as regards
>temperature -- you shouldn't LLF them cold, for example.
The problem, however, as I understand it, wasn't the ST-506/412 interface
itself, it was the fact that most of the drives that used this interface
used stepper motors to move the R/W heads. The high-end voice-coil drives
that used the
ST-506/412 interface were *far* more reliable, and usually didn't have any
problems using RLL encoding.
Regards,
| Scott McLauchlan |"Sometimes the need to mess with their heads|
|Information Services Division| outweighs the millstone of humiliation." |
| University of Canberra |__________Fox_Mulder_"The_X-Files:_Squeeze"_|
| scott(a)isd.canberra.edu.au |http://www.canberra.edu.au/~scott/home.html |
In a message dated 98-01-07 17:05:26 EST, you write:
<< I once had a PC/XT overclocked to 25 or so MHz. It caught fire...
Basically, I just pulled the chip marked 25 MHz from a dead 386
and put it where the XT's ship was. It took about 10 minutes to start
emitting black smoke.
This was before I knew they were useful... >>
A friend of mine once told me that they used to replace the 1mhz? crystal
on Kim-1 boards with an 8mhz crystal. Man, that 6502 was real fast for a
while. :-)
Well, we have 10 IIcis, 10 Powermac 5400/180s (slow as molasses) 1 clone, 2
quadras. They are all used, the IIcis are limited in usefullness, because of
the lack of FDD functionality
In a message dated 98-01-07 20:18:49 EST, you write:
<< This will help lot. Otherwise, replace them with newer Mac clones.
Cheaper in long run and less headache especially if they're at
school lab still used? Also these clones uses regular 15pin monitors
that was used for PC's.
>>
Can someone please help this man? Please send your replies to:
COCarlson(a)aol.com
---------- Forwarded message ----------
Date: Sat, 3 Jan 1998 17:13:00 EST
From: COCarlson <COCarlson(a)aol.com>
To: vcf(a)siconic.com
Subject: help
I need a command interpreter (command.com?) for a Kaypro XT. I had backed up
the files and was then removing files in preparation for giving this computer
to a grandchild. I accidentally deleted the system files. I have them backed
up, but I can't get to the "restore" option until I can boot the computer.
Actually, a Low density "system" diskette would be great.
COCarlson(a)aol.com
In a message dated 98-01-07 15:26:19 EST, you write:
<< One Mac IIcx - what good about this
one? I used to work on similar configuration of that model
when I was at college doing homework. Comments please. >>
I have this model in my collection. i managed to get it for $25 but have not
been able to test it since mine came with a radius two page display card which
is useless without the monitor. i finally did get a 1bit video card for it,
but now need to find a mono display for it which i still havent found! the cx
is a 68030 running at 16mhz. a better deal would be the IIci model which is
25mhz and built in video which can be used with a vga monitor if you use a
special dongle.
RE: ps2 models; I have 3 of them: two 8530 and a 9577. the model 77 i bought
>from work when they upgraded to pc300 desktops. two scsi adaptors, 16 meg, 200
400meg scsi drives running hpfs and os2 3.0. its an industrial strength
machine, and will probably outlive any other computer i own.
david.
I like the IIcis. They're cute little things. Pretty fast, too. The only
problem, and I'm wondering if anyone could help me, is this. My experience
with them was in a Macintosh Lab at a school. They have been used there for ~7
years. They have two problems. One is that the monitors power up
intermittently, probably due to the transformer. Ideas? The other is the disk
drives. They were all blown out with compressed air, but still didn't start
working correctly. Ideas?
> a better deal would be the IIci model which is
> 25mhz and built in video which can be used with a vga monitor if you use a
> special dongle.
