HDTenEightyP/NetNews huggingface dataset:
From: tmh@doppel.first.gmd.de (Thomas Hoberg)
Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.intel,comp.sys.ibm.pc.misc
Subject: Re: More on Local Bus - What about Unix?? S3 vs.
Date: 13 Aug 92 23:30:48 GMT
	<1992Aug10.092255.118@vulcan.resmel.bhp.com.au>
	<Bss82v.LJM@usenet.ucs.indiana.edu>
	<ADAMS.92Aug13004812@PDV2.pdv2.fmr.maschinenbau.th-darmstadt.de>
	<1992Aug13.064156.2539@Informatik.TU-Muenchen.DE>
Followup-To: comp.sys.ibm.pc.hardware
Organization: GMD-FIRST, Berlin
In-reply-to: roell@informatik.tu-muenchen.de's message of 13 Aug 92 06:41:56 GMT

In article <1992Aug13.064156.2539@Informatik.TU-Muenchen.DE> roell@informatik.tu-muenchen.de (Thomas Roell) writes:

   >1) Without a coprocessor, graphic in a PC means bit manipulation by CPU.
   >This may eat up most of the available bandwidth.

   Yes, but in localbus designs you have the bandwidth available. And if
   you have a simple framebuffer directly attached to the CPU it is
   *very* fast.

   >2) As a coprocessor allows to use protocols at a much higher level,
   >like X or Phigs, communication overhead _shrinks_ tremendously.
   >This has been proven with PC-graphic adapters running Xserver themselves,
   >no CPU had to write to video memory anymore.

   Well, then you hit another effect. The CPUs are getting faster faster
   than the graphics chips do. Like the 34020 is about 6 MIPS, while a
   486 is much higher (think around 20 on a 486/50). That means that the
   main CPU is just waiting for the Graphics board the do something ...
   Another performance wall you hit is the communication between adaptor
   and CPU. Normally they want to have all graphics requests in a special
   format encoded, which means the 486 is quite busy to translate the
   users requests. And not to forget you have to go over a bus, which
   means you have to do busarbitrating (like queue polling).

   My personal oppinion is that a graphics chips should have the best of
   both worlds:

	   a) Memory mapped, both framebuffer and graphics engine

	   b) The GE should have a deep queue for commands

	   c) The GE should be optimized to do only simple commands, but
	      these hardcoded in silicon to drive the RAMs at threir top speed.

	      The commands would be simply COPY_RECT, FILL_RECT,
	      DRAW_LINE.

	   d) Let the rest do the main CPU, which has the horsepower for
	      clipping and rendering in lowend systems.

   An approch like this will buy you much more than a highpriced special
   Graphics board. Or why do you think are these RISCy GEs faster under X
   than the 340x0 based boards ?

   - Thomas

Why don't you just name it? It's called the GX accellerator and sold
by SUN (now that we have local bus, why doesn't somebody go clone
it?).
---
Thomas M. Hoberg   | Internet: tmh@first.gmd.de
1000 Berlin 41     |           tmh@cs.tu-berlin.de
Wielandstr. 4      |
Germany            | BITNET:   tmh@tub.bitnet 
+49-30-851-50-21   |


Newsgroups: comp.sys.ibm.pc.hardware
From: russest@ampex.com (Steve Russell)
Subject: Re: 386/20 to 386/40??
Organization: Ampex Corporation, Redwood City CA
Date: Sat, 15 Aug 1992 21:16:49 GMT

In article <92227.25232.J056600@LMSC5.IS.LMSC.LOCKHEED.COM> J056600@LMSC5.IS.LMSC.LOCKHEED.COM writes:
>I currently have a 386DX/20 machine, and I was wondering how much work would
>be involved if I wanted to replace the CPU with a 386/40 chip.  I think the
>CPU would go along with (I think) the clock crystal.  Is there anything else
>that would have to be done?  Or would I need to replace the motherboard?  If I
>needed a motherboard replacement, I'd just as soon go with a 486/33, or wait
>until the newer technology defines the next standard.  Any comments?
>
>Tim Irvin   j056600@lmsc5.is.lmsc.lockheed.com

What's the point of changing the cpu if you aren't upgrading the motherboard?

Current mb prices for 386/40 w/cpu and 0k are 255.00 or less.

-steve
Newsgroups: comp.sys.ibm.pc.hardware
From: jon@chopin.udel.edu (Jon Deutsch)
Subject: Re: Gateway Telepath Modem
Organization: University of Delaware - What state is that in?
Date: Fri, 21 Aug 1992 05:14:28 GMT

In article <BtAv1M.8BG@encore.com> dgulkis@encore.com (Dan Gulkis) writes:
|>Just a warning to the people interested in the Gateway Telepath modem.  The
|>advertising states that you will get Crosstalk for Windows, WinFax Pro, and
|>Qmodem.  And you will.
|>
|>However, you will get Qmodem version 4.5, the test drive version which is
|>available on many bulletin boards.  If you want the commercial version 5.0, 
|>you must pay an extra $35, which is sent directly to Mustang Software.  That 
|>really irks me.
|>
|>It might be a gray area, since they don't advertise which version is sent.

	Yes they do - at least in the adds I received from Gateway.
	They say 4.5.


       X-------------------+--------------+-----------------------X
       |  |   |\       |>jon@chopin.udel.edu<|  "For my 2 cents,  |
       | \|on |/eutsch |>>-----------------<<|  I'd pay a dollar" |
       X------+--------------------+--------------------+---------X
Xref: sparky comp.sys.ibm.pc.hardware:22023 comp.unix.sysv386:13256 comp.unix.bsd:4282
From: terry@uivlsi.csl.uiuc.edu (Terry Lee)
Newsgroups: comp.sys.ibm.pc.hardware,comp.unix.sysv386,comp.unix.bsd
Subject: SpeedSTAR 24X performance?
Followup-To: comp.sys.ibm.pc.hardware
Date: 17 Aug 1992 17:37:30 GMT
Organization: Coordinated Science Lab., Univ. of Illinois at Urbana-Champaign
Distribution: world
NNTP-Posting-Host: uivlsi.csl.uiuc.edu
Keywords: SpeedSTAR 24X

	With all the discussions about the SpeedSTAR 24X, there is still one
thing I'm wondering about:  is a special driver required to obtain its max.
performance, or is any regular Paradise SVGA driver sufficient?  Also, has
anyone gotten it to work under X386?  Please help; I'm wondering if I should
trade in my SpeedSTAR 24 while I still can.  Advanced thanks for any help!

----------
Terry Lee
terry@uivlsi.csl.uiuc.edu
Newsgroups: comp.sys.ibm.pc.hardware
From: price@helios.unl.edu (Chad  Price)
Subject: Re: IBM PC and Zenith FTM 1490
Keywords: video board, ati, paradise, IBM PC, zenith
Organization: University of Nebraska - Lincoln
Date: 18 Aug 92 13:50:12 GMT

jboyd@s.psych.uiuc.edu (John Boyd) writes:


>	I have an IBM PC and Zenith FTM 1490 monitor.  I have
>been using an IBM vga adapter card which now gives me one
>long beep and 3 shorts when I boot up.  

>	I have tried replacing the bad adapter card with other
>vga cards and not all of them work.  For example, an ATI VGA
>basic 16 just gives me static on the screen and never gets to 
>the DOS prompt.  However, a Paradise VGA PLUS card works fine.

>	I'a appreciate any help on why I can't use just any
>VGA card, the ATI card is a lot cheaper than the Paradise and
>I don't want to put any more money in the system than I have
>to. 

>-jb


The 1490 is a VGA ONLY monitor. It does not multi-synch. If any of the other 
cards are attempting to use SVGA modes, they will not work and may damage
your monitor. I would use caution. I use an ATI Basic 16 VGA card. Works fine.
(Yes, I have a 1490).

--
chad
price@helios.unl.edu
cprice@molecular.unmc.edu
Newsgroups: comp.sys.ibm.pc.hardware
From: kevin@kosman.uucp (Kevin O'Gorman)
Subject: Any use for 4-floppy controllers?
Organization: Vital Software Services, Oxnard, CA
Date: Wed, 12 Aug 1992 18:19:57 GMT

I keep seeing these HD controllers that include logic for 4 floppy drives.
I keep wondering why bother?  I thought MS-DOS (what most of these will
be used for) only recognized 2 floppies, no matter what logic was actually
present.

Am I wrong?  Can one use the 3rd and 4th for something else, like floppy tape?

Anybody have any idea?
-- 
Kevin O'Gorman ( kevin@kosman.UUCP, kevin%kosman.uucp@nrc.com )
voice: 805-984-8042 Vital Computer Systems, 5115 Beachcomber, Oxnard, CA  93035
Non-Disclaimer: my boss is me, and he stands behind everything I say.
From: rjs@crs.cl.msu.edu (Robert J. Stanton)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: LETS VOTE on BEST BIOS
Keywords: BIOS
Date: 13 Aug 92 21:19:16 GMT
Distribution: comp
Organization: Michigan State University

I need to replace the BIOS on my 386-25, so
I'm hoping I can get votes on the BEST BIOS.

I will summarize on this newsgroup, so
get in your vote to me.

rjs@crs.cl.msu.edu
From: f89ba@efd.lth.se (Bengt Ask)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Memory interleave and page mode with Headland chipset
Date: 16 Aug 92 14:23:38 GMT
Organization: Lund Institute of Technology, Sweden

I have a 33 MHz 386SX with a Headland HT-18C chipset and
8 MB of memory (8*1MB SIMMs) in four banks. The manual only
speaks in general terms, but says the chipset supports page
mode and 2-way interleaving, and 4 bank 4-way interleave mode.

  * Does the chipset automatically use the best interleave
    mode depending on the number of banks? There is no entry
    in the setup to control this.
  * Since I know my SIMMs support page mode operation, is it likely
    that this feature is actually used? As with the interleave, there
    is no way to enable the function manually. BTW, almost all DRAM
    chips I have come across do, according to the data sheets, support
    page mode operation, so page mode operation shouldn't be very
    exotic.
  * Sometimes the Landmark v. 2.0 test shows a speed rating of
    41 MHz, and sometimes, depending on where in memory the Landmark test 
    is loaded, it drops to 30 MHz. Similarly, PC Tools 5.0 speed rating is
    sometimes 1460% and sometimes 1660% (of the original PC:s speed). 
    Is this an effect of interleave or page mode operation?
  * Although a 66 MHz X-tal is used, all programs (Checkit and others)
    report a clock speed of only 31.8 MHz. I have actually measured
    the frequency at the clock input of the CPU, and it IS only about 
    63.7 MHz. Why is it so and is this a normal behavior? In the 
    "non-turbo" 8.25 MHz mode, the clock input is exactly 16.5 MHz,
    which is what one would expect.

If anyone has Headland's fax number, could you pass it
on to me?

Please email any replies.

  Bengt Ask, Lund Institute of Technology, Lund, Sweden
Newsgroups: comp.sys.ibm.pc.hardware
From: herrod@crchh235.NoSubdomain.NoDomain
Subject: AOC Monitors
Organization: Bell-Northern Research, Richardson, Tx
Distribution: usa
Date: Tue, 18 Aug 1992 14:25:43 GMT

Has anyone ever heard of AOC monitors? I have found quite a good deal on 
a system with a Speedstar 24X and AOC 17" monitor. It has .26 pitch and 
supposedly complies with the VESA refresh rates.

I can't receive mail here, so I would appreciate postings.

Thanks,
Steve Herrod
Newsgroups: comp.sys.ibm.pc.hardware
From: chand@nyx.cs.du.edu (Chris Hand)
Subject: Programming PC support chips (DMA etc.)
X-Disclaimer: Nyx is a public access Unix system run by the University
	of Denver for the Denver community.  The University has neither
	control over nor responsibility for the opinions of users.
Organization: Nyx, Public Access Unix at U. of Denver Math/CS dept.
Date: Sat, 15 Aug 92 13:37:23 GMT

Hi,

Can anyone recommend a source of info on programming the various
support devices within the PC?  Stuff like addresses of registers,
bit definitions, operational info etc.?

Specifically I'm interested in using the DMA Controller with C code.

Books, articles or FTP-able files all welcome!

Thanks,

Chris	cph@leicp.ac.uk

Newsgroups: comp.sys.ibm.pc.hardware
From: jeff@is.s.u-tokyo.ac.jp (Jeff McAffer)
Subject: Re: SPARC compatible tape units?
Reply-To: jeff@is.s.u-tokyo.ac.jp
Organization: University of Tokyo, Good Times Department.
	<1992Aug20.104745.22330@spectrum.xerox.com>
Date: Fri, 21 Aug 1992 01:13:47 GMT

In article <1992Aug20.104745.22330@spectrum.xerox.com> braven@rx.xerox.com (Brian Raven) writes:

 >>>I would like to get a tape drive for a 486/50 which can read and write
 >>>SPARC 150 MB tapes.  Is there such a thing?  If so, a name and model
 >>>number would be good.  Perhaps even a cool ultra-cheap discount
 >>>mail-order place that sells them.  Any experiences are also
 >>>interesting.
 >>
 >>Well I connected a SPARC 150MB external streamer (archive viper 150) to my PC
 >>via an Adaptec 1542B SCSI controller and can extract data of the tape using
 >>ASPITAR or SYTOS.
 >>
 >>Davei

Just to be clear about what it is that I orginally wanted to do.  I
need something, anything, that will let me read and write SPARC
*format* tapes.  Basically this will be used as a file transfer media.
Actually, I just assumed that 150MB would be the most available
format.  Any size over about 60MB would be fine.

Can I assume that ASPITAR writes with suitable format and block size
such that my Sparc can read it?  vice versa?  Is SYTOS required?  Are
ASPITAR and SYTOS are PC programs?

As a final note, it would seem that I am not seeing some of the posts.
There are replies to replies to my messages which I have never seen.
Heaven forbid that I actually ask for more news to read but since
people are taking the time to respond to my queries it would be good
if I saw them.  I suspect that some people's 'distribution' is getting
set to USA or something.  Please set it to 'world' (or whatever the
appropriate everyone setting is).  Thanks.
--
atode, |m         -- "What happened to all my disk space?"
                     "I hear Mike took it."
                     "Bastard!"
Newsgroups: comp.sys.ibm.pc.hardware
From: reichert@rtsg.mot.com (Charles H. Reichert)
Subject: Re: Printing text on DeskJet 500C with color ink
Organization: Motorola Inc., Cellular Infrastructure Group
Date: Tue, 18 Aug 1992 14:26:40 GMT

Arthur_Leung@mindlink.bc.ca (Arthur Leung) writes:

>Does anyone know of any package (program/library/source) that can print text on
>the DeskJet 500C with the color cartridge installed? I would like to be able to
>print both color pictures AND normal text without the need of changing the ink
>cartridge.

I've been printing text and color graphics with the color cartridge with no 
problems.  If you want dark, deep black for text then you will need the black
cartridge.  Remember Color cartridge works on normal or special HP paper, but
the Black cartridge should not be used on HP paper.  Try it, you'll soak the paper,
causing running, plus wasting a lot on ink.  This is per HP notes in the HP
DeskJet 500C Manual.

	Chuck Reichert


-- 
     ====================================================================
     | Charles H. Reichert  708-632-6669 Work - MOTOROLA, INC  Cellular |
     | KD9JQ                708-358-3827 HOME - after 8PM CST  weekdays |
     ====================================================================
Newsgroups: comp.sys.ibm.pc.hardware
From: jmp@dar.csiro.au (POWELL James;Change Jmp Impacts;575)
Subject: Annoying hard disk problem
Summary: intermittent lockup on reading
Keywords: hard disk
Organization: CSIRO Division of Atmospheric Research
Date: Wed, 19 Aug 1992 07:36:40 GMT

G'day,

I have a rather annoying problem with my hard disk and I would appreciate if
anyone out there could shed some light on the problem.

I have replaced the 70 meg hard disk (Imprimis) in my 386 AT-Clone with a
Conner Peripherals 100 meg hard disk. The drive operates perfectly except for
an intermittent 'lock up' during reading (appears to only happen while
reading large files). This lasts for approximately 5-10 seconds then the
machine carries on as if nothing had happened (the drive activity light
remains constantly on during the lock up). The only program that I have found
which objects to this behavour is 'coretest' (it intermittently reports a
read error).

I am finding this most frustrating and any ideas would be greatly
appreciated!

PS.

Machine stats:

- 386 @ 25Mhz AT-Clone
- American Megatrends BIOS (386A V1.0 10-05-89)
- Paradise 512k VGA
- Conner Peripherals 100 Meg Hard Disk

--
                          \|/             ((   )))
                         --O--           ((______)))
                          /|\      /\   / //////
                                  /  \__  /// /      James Powell  [:-) 
    Honda      o   DoD #329   _/\/  _   \           Melbourne, Australia
  CBR-600FN   \_\     _______/   \_/ \   \_  **** EMail: jmp@dar.csiro.au ****
 ____________O/_O____/                 \    \__________________________________

           "I wouldn't be so paranoid if you weren't all against me!"
Newsgroups: comp.sys.ibm.pc.hardware
From: korenek@ferranti.com (gary korenek)
Subject: Summary of replies to 'what is local bus'
Reply-To: korenek@ficc (Gary Korenek)
Organization: Ferranti International Controls
Date: Fri, 14 Aug 1992 20:28:24 GMT

As I promised, here is a summary of the replies I received
to my 'what is local bus' question.  Additionally, there is
a good writeup (about local bus) in the August 'PC Sources'
magazine.

My thanks to all those who took time to reply!   -- G.K.

----------- Summary begin ----------------------------------------

****** From: abs0@coos.dartmouth.edu (Kelvin Leung):
I don't know much about it.  However, I have been told that it is
attached directly to the cpu, just like Mac SE/30's 030 direct slot
and Amiga 2000's co-processor slot.  Since it is directly connected
to the cpu, you can get the best performance out of it.  Nonetheless,
I have been told you can only use 1 local bus device/interrupt at any
given time though...  Good for graphics speed enhancement.


****** From: Arto J Hoikkala <ahoi@vipunen.hut.fi>
Local bus is a 32-bit fast (33 MHz) 'replacement' for ISA, MCA
and EISA buses. It has superb throughput of 132 MB/s when compared
to 33 MB/s of EISA, 20 MB/s of MCA and 5 MB/s of ISA.

Local bus has two standards, Intel and VESA. Hovewer, Intel's
standard hasn't standardized the connector type and VESA's standard
isn't ready yet (well, it might be). VESA's physical connector is
based on a standard MCA slot.

Local bus has been used mostly as a video slot, but it's a good
solution for fast hard disks too.

There are many Local Bus products but they are mostly proprietary
versions, not either of mentioned standards.

****** From: REE700A@MAINE.maine.edu
Local bus refers to the practice of adding one to three bus connectors
directly onto the address, control & data lines of the CPU bus (hence
local bus) rather than on a substantially slower I/O bus.

This is a great Idea if everyone could agree.  Up to recently, there
was no standard as to how this interface would be accomplished (timing
& pinout).  Finally VESA (Video Electronics Standards Assoc.), of which
Intel is a member, agreed on a standard for local bus.  At the same time,
Intel proposed their own standard.  Still no standard.....

----------- Summary end ------------------------------------------

-- 
Gary Korenek (korenek@ficc.ferranti.com)
Ferranti  International  Controls  Corp.
Sugar Land, Texas          (713)274-5357
From: wilkin@sun.lclark.edu (Brad Wilkin)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: WANTED: Full Size AT Case
Date: 21 Aug 92 00:20:29 GMT
Article-I.D.: lclark.1992Aug21.002029.20645
Distribution: pdx
Organization: Lewis & Clark College, Portland OR


I am wondering how one might find a good deal on a full size AT case here
in the Portland area.  I have a DTK motherboard which is going to require
a full size case.  Do I need to go retail or is it possible to find these
used somewhere?  I am trying to put together a cheap system, so price is a
factor (very much so).

Any hints?



-- 
---------------------------------------------------------------------------
Brad Wilkin                                 Lewis & Clark College
Systems Development Coordinator             Computing Services
UUCP: tektronix!reed!lclark!wilkin          Internet: wilkin@lclark.edu
Newsgroups: comp.sys.ibm.pc.hardware
From: doi@tartarus.uwa.edu.au (Daniel Kuan Li Oi)
Subject: EISA SCSI adapters
Summary: Need advice
Keywords: SCSI EISA
Organization: University of Western Australia
Date: Fri, 14 Aug 1992 05:33:54 GMT

	Can anyone recommend a SCSI EISA adapter for a 486-33 EISA
computer?  I am considering getting a new harddisk, around 200MB and
might consider getting an EISA controller.

	What would give good performance for a modest cost?  Also, what
support exists in terms of SCSI drivers.  

	Also what problems may exist with IDE and SCSI devices on the
same bus?

	Thanks in advance. Daniel Oi
From: reisert@mast.enet.dec.com (Jim -- MLO3-6/B9 -- DTN 223-5747)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Intel - Offers 486 DX2
Date: 12 Aug 92 15:31:24 GMT
X-Received: by usenet.pa.dec.com; id AA21352; Wed, 12 Aug 92 08:31:26 -0700
X-Received: by enet-gw.pa.dec.com; id AA05023; Wed, 12 Aug 92 08:31:24 -0700
X-Received: from mast.enet; by decwrl.enet; Wed, 12 Aug 92 08:31:24 PDT
X-To: comp.sys.ibm.pc.hardware.usenet
X-Apparently-To: comp.sys.ibm.pc.hardware.usenet


	{The Boston Globe, 10-Aug-92, p. 50}

   The 486 DX2 runs internally at 66 megahertz and sends/receives data at 33
 MHz. Computer makers can use the chip in computers that were designed for the
 33 MHz 486, without having to update the rest of the PC to 66-MHz speed. By
 doubling the chips internal clock, Intel says the microprocessor can speed up
 the PC's processing by 70%, even though the rest of the computer continues to
 operate at 33 MHz. "This is our highest performance processor right now," said
 Lew Paceley, an Intel marketing manager. More than 30 computer makers were
 expected to announce Monday they would make models powered by the new chip,
 Intel said, including IBM, Compaq, Dell and Tandy. The new chip costs $682
 each in orders of 1,000 or more. Intel said it has shipped more than 20,000 of
 them already. Earlier this year, Intel released a chip that operates at 50 Mhz
 internally, but half that speed when communicating with the rest of the
 computer. That chip is designed to substitute for Intel's 486 microprocessor
 that runs at 25 megahertz. Intel said it has shipped more than 300,000 of
 these chips so far, exceeding its expectations.

--
Jim Reisert                     Internet:  reisert@mast.enet.dec.com
Digital Equipment Corp.         UUCP:      ...decwrl!mast.enet.dec.com!reisert
146 Main Street	- MLO3-6/C9	Voice:     508-493-5747
Maynard, MA  01754		FAX:       508-493-0395
From: 5916rahmank@vms.csd.mu.edu
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Backup Software for i486DX2/50 Based Machines
Date: 17 Aug 92 21:56:07 GMT
Article-I.D.: vms.0095F3C5.A1876680
Reply-To: 5916rahmank@vms.csd.mu.edu
Distribution: na
Organization: Marquette University - Computer Services

In article <15rqfmINNd2r@agate.berkeley.edu>, braver@magnolia.Berkeley.EDU (Michael Braverman) writes:
>A friend of mine just got a DELL 486D/50 Machine (i486DX2/50, ISA, 
>NO external cache) and asked me advice on what backup software to get.

........deletion...
>
>I read that some backup software has trouble when running on the faster
>machines like the 486DX33 and i486DX2/50.
>
>So, what is your recommedation for the most convenient/intuitive/fast
>backup software available?   The principle criteria are:  it should  

.....deletion....

>-Michael Braverman
> braver@auspex.berkeley.edu

	I have used Central Points PCTOOLS (V 7.1) for backing up
	a 486DX-50 to floppies and to HD. Didn't have any problem
	with this software. But some people like Fastback.
	Either of these programs should be OK.

	- Anis, EECE, Marquette University.
Newsgroups: comp.sys.ibm.pc.hardware