HDTenEightyP/NetNews huggingface dataset:
From: easton@zds-oem.zds.com (Jeff Easton)
Subject: Re: Power supply for hard drive.
Organization: Zenith Data Systems, OEM Systems Engineering
Date: Mon, 21 Dec 1992 18:01:42 GMT

In article <168C49F6D.WALLY@UKCC.UKY.EDU> WALLY@UKCC.UKY.EDU writes:

>Okay...  I missed the original poster to my question, but luckily was
>quoted and I think I got the idea.  The drive was measured taking about
>1a once before.  I put a new power supply on it yesterday, and something
>is STILL wrong..  The drive does the same *plink plink* stuff it does
>when it's overjuiced..  The +12 is 12.03 and the +5 is around 5.12, but
>when I put a load on it it drops to 5.03..

  Sounds within tolerances to me.

>The +5 side has 4.8 (!) amps, and the +12 has 1.1.  What could be the
                                               ^^^^
>problem here?

  The +12 only having 1.1 Amps is likely your problem.  If your drive
requires > 1 amp on power up, repeated power cycles may kill it over
time.  Find another supply with, say, 2 Amps on the +12v.

>I swear..  Me and power supplies *don't* make a good combination.. :(
> 
>Thanks for your help so far.. :)

> |    Walter_ //   Wally@UKCC.UKY.EDU   AN723@Cleveland.Freenet.EDU | |

-- 
  ___  ___    Jeff Easton             easton@zds-oem.zds.com
 (__  (__     Zenith Data Systems     j.easton@mi04.zds.com
 ___) ___)    Saint Joseph, Mich.     easton@andrews.edu
Monte Carlo   Z-LS/20 - Choice of a quiet generation
From: kodak@mentor.cc.purdue.edu (Jason 'KodaK' Balicki)
Newsgroups: comp.sys.amiga.hardware
Subject: ST-4026
Date: 4 Jan 93 03:28:14 GMT
Distribution: comp
Organization: Purdue University Computing Center


Can anyone give me info on the ST-4026 (2046?) drive and/or Seagates BBS #?

Thanks

--Jason Balicki
kodak@mentor.cc.purdue.edu
From: acct136@carroll1.cc.edu (Randy Kruszka)
Newsgroups: comp.sys.amiga.hardware
Subject: C.Itoh printers
Date: 1 Jan 93 00:42:54 GMT
Reply-To: acct136@carroll1.cc.edu (Randy Kruszka)
Organization: Carroll College-Waukesha, WI

Hello (and happy new year!)  I have a C.Itoh Prowriter printer (kinda old
now, I admit) that I used to use on my A1000.  It worked pretty good so
when I upgraded recently I figured I could just "hook it up".  Well, it
did not work and I discovered that the cables (and correspondingly pinouts)
were different.  I replaced my A1000 cable with a A2000/500 cable and it
still does not work.  I tried the printer on a friends A3000, another's
A2000, and eventually my A4000.  It strangely worked on the friends '286
laptop fine.  Do I need a '286???  :) :)

Randy     acct136@carroll1.cc.edu      or here on the net.
From: lukec@terapin.com (Luke Chastain)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: My SupraFax modem
Date: 1 Jan 93 20:11:50 PST
Organization: BBS

   I called Supra up in Oregan a while ago.   The techy said that it cost $20
plus $5 shipping.   He also said you have to order it through the Supra BBS I
can't find the BBS # right now but once I do I'll put it up here unless someone
beats me to it.
From: lukec@terapin.com (Luke Chastain)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: slowing down an amiga 1200
Date: 1 Jan 93 00:03:50 GMT
Organization: BBS

May I ask why you want to slow it down?
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Data/Instruction Cache & BURST modes on 68030? Why/when?
From: lewis@ratty.mits.com.au
Date: 24 Dec 92 11:02:49 +1000
Organization: MITS
Nntp-Posting-User: lewis

In article <smcgerty.725067816@unix1.tcd.ie>, smcgerty@unix1.tcd.ie (Stephen John McGerty) writes:
> In <72192@cup.portal.com> Tony-Preston@cup.portal.com (ANTHONY FRANCIS PRESTON) writes:
>>Data cache is an area of memory(varies in size with different processors,
>>generally, more is better) that the cpu saves data that might be used over
>>again.

[ Stuff cut ]

> With this in mind, why is it that Motorola have seperate instruction
> and data caches? On the i486 there is a single 8k cache used for
> both instructions and data. On the M68040, there is one 4k cache
> for data, and another 4k cache for instructions. Which is better?
> 
> I hear that the Intel 586 is going to have seperate instruction
> and data caches, as in the M68040, so this would seem to imply that
> this is the prefered arrangement...?
> 
> The only thing I can think of is that you might not want your instruction
> cache getting overwritten with less frequently used data, in a vector
> operation or something. But this isn't really a serious factor, or
> so I'm told...
> 
> Anyone any inspired thoughts?
> 
> : / T | /  Stephen John McGerty (C.Sci)  "Theory must never   Amiga  // :
> : / | |/   smcgerty@unix1.tcd.ie          precede creation"       \\//  :

The manufacturers decide on whether to use a unified or split cache
arrangement by getting instruction and data trace data for real programs,
and running this data through simulations of the difference cache
arrangements, sizes, associativity, etc.  This helps them to find which
setup suits the processor design best.

I recall from reading an IEEE Micro article on the i486 design that they
found the single 8k cache performed better for their simulations, and in
another article, I seem to remember a similar statement from the Motorola
68040 designers saying that their simulations showed the split 4k caches to
perform better.

-- 
David Lewis,

Internet:	lewis@mits.com.au
Phone:		+61 3 613 9415		Fax:	    +61 3 613 9550
"No call alligator long mouth till you pass him." - Jamaican Proverb.
From: paulg@tplrd.tpl.oz.au (Paul Gittings)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Kodak Photo CD
Date: 21 Dec 92 22:46:13 GMT
Organization: Telectronics Pacing Systems
Originator: paulg@sydrd19


In article <pault.2uiu@terapin.com>, pault@terapin.com (Paul Tibbals) writes:
> I just talked with a C= rep who said that C= demonstrated PhotoCD capability at
> CES a year ago.  AS they were right next to Philips of CDI fame, and who also
> manufactures the Kodak PCD machine, Philips was furious.  They reportedly told
> Kodak that if they licensed PCD to C=, then Philips wouldn't make the machine
> for Kodak.  Commodore is still negotiating to license PCD for the CDTV and
> should have it RSN.....  you know what that means.

An Australian Amiga magazine, "Australian Commodore and Amiga Review" claims
in the December issue that C= and Kodak HAVE signed an aggrement to allow
C= to add PCD to CDTV.
NOTEL: ACAR seems to get the majority of its news type articles from
       comp.sys.amiga.advocacy.  So I wouldn't get to excited yet!

Cheers,
Paul
Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
From: cld@wucs1.wustl.edu (Christopher L. Davis)
Subject: Another Monitor Question, but desperate help needed
Organization: Washington University, St. Louis MO
Date: Sun, 3 Jan 1993 16:07:18 GMT

Hello.  I desperately need some advice about monitors.  I currenly have a 
	2000 with no flicker fixer.  I am considering getting a new monitor,
	and am really in a quandry over what to get.  I can get a new monitor
	now, but it might take a couple of months to scrounge up the cash 
	for a flicker fixer.  I also am also thinking ahead to the possibility
	of an AGA machine sometime in the future.  Is there any monitor that
	can handle this, ie, non-deinterlaced A2000, A2000 with deinterlacer,
	and new AGA (A4000) style connections in a progression (not simul-
	taneously of course).

	I would really appreciate some information, as our full time dealers
	here have pretty much closed. :(   Thanks for any assistance.  (I
	read something about a Mitsubishi Diamondscan 1381A handling all 
	Amiga modes, is this true?)

Chris Davis   cld@wucs1.wustl.edu
Newsgroups: comp.sys.amiga.hardware
From: zarthac@bradley.edu (Matthew Simmons)
Subject: Re: How to put a CLock in A1200
Organization: J. Random Misconfigured Site
Date: Mon, 4 Jan 1993 02:56:26 GMT
X-Newsreader: TIN [version 1.1 PL8]
X-Posted-From: cs1.bradley.edu
NNTP-Posting-Host: sol.ctr.columbia.edu

Jeff Easton (easton@zds-oem.zds.com) wrote:
: In article <1993Jan3.110938.1064@sol.ctr.columbia.edu> zarthac@bradley.edu (Matthew Simmons) writes:
: >Jeff Easton (easton@zds-oem.zds.com) wrote:
: >: In article <1993Jan1.081253.28607@sol.ctr.columbia.edu> zarthac@bradley.edu (Matthew Simmons) writes:
: >: >Jeff Easton (easton@zds-oem.zds.com) wrote:
: >: >: In article <1992Dec31.070125.18936@midway.uchicago.edu> sjchmura@midway.uchicago.edu writes:
: >: >: >Since the clock has a seperate conector than the FAST-Ram slot, is there
: >: >: >an easy way to add one?
: >
: >: >: Plug the mythical clock module into the exposed header.  Reverse the
: >: >: procedure to put it back together.
: >: >
: >: >:   Has anyone announced a clock module that plugs in here?
: >: >
: >: >Are you trying to tell me that the 1200 doesn't come with a f**king clock?
: >
: >: Yup.
: >
: >To C= people:   Why the fuck?
: >		How the fuck?
: >		When... you get the picture.... Why was this allowed to happen?
: >			even bottom of the line ibm clones have f**king clocks!
:  
:   Sheesh.  Lighten up.  All the pads for a real time clock and battery
: are there on the motherboard.  It looks like Engineering did the 
: Right Thing (tm) and accounted for the possibility.  Its the marketing
: guys who told them to de-populated it and they arent on the net.

: -- 
:   ___  ___    Jeff Easton             easton@zds-oem.zds.com
:  (__  (__     Zenith Data Systems     j.easton@mi04.zds.com
:  ___) ___)    Saint Joseph, Mich.     easton@andrews.edu

How easy would a DIY project be to put in your own clock?
From: lukec@terapin.com (Luke Chastain)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Does the A1200 have an HD floppy
Date: 31 Dec 92 16:28:42 PST
Organization: BBS

  No it dose not come with an HD floppy simply because the current HD floppy
models are to big to fit in the A1200.
From: Tony-Preston@cup.portal.com (ANTHONY FRANCIS PRESTON)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: slowing down an amiga 1200
Date: Mon, 28 Dec 92 12:36:03 PST
Organization: The Portal System (TM)

Sure there is...  What you do is create a cpu hog that 
eats cpu time(busy wait loop) at prio 128.  It has to sleep
part of the time.  If you want 8 mhz out of a 40 mhz, then
it would eat 4 units of time and sleep for 1 unit.  The unit
of time should be small enough to give smoothness to the system
but not too small or the overhead would slow you down further...

Using the timer.device you could calculate a delay factor and 
busy wait, then do a wait for the amount you wish to free up.
Interesting idea... No, I don't think there is such a tool yet!
Newsgroups: comp.sys.amiga.hardware
From: hellerS@moravian.edu (sjh)
Subject: Re: Data/Instruction Cache & BURST modes on 68030? Why/when?
Distribution: na
Date: Tue, 22 Dec 92 17:06:41 EST

Thanks to all who wrote me replies on these questions. However, I've gotten
a few different replies, so I called CSA and asked for the "straight
answer" and this is what they said. As far as the MMR goes, there is NO
burst mode capability, regardless of 32-bit memory speed. As far as the
data/instruction caches go, if you HAVE NO 32-bit memory on the CPU, the
caches can speed things up a bit, but are essentially useless when working
with 32-bit DRAM. His suggestion was to LEAVE the CACHES and BURST OFF.
Several people were pretty certain that 60ns was the magic number for DRAM
speed to be able to use burst mode. The CSA guy laughed and said that was
nonsense - it just doesn't exist on the MMR. It was a feature they had
originally intended to include but decided to leave it out because they
felt there was virtually no demand for it...why, I don't know. It must work
on some accellerators, but not the MMR (or the Derringer).

So that's the scoop, direct from the tech-support at CSA.
From: swinokur@cellar.org (Steve Winokur)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A1200/4000 ramblings...
Date: 24 Dec 92 08:29:37 GMT
Organization: The Cellar BBS and public access system

koren@fc.hp.com (Steve Koren) writes:

> > Ever sat in the front row of a cinema? The flicker is _really_ bad.
> > I hear it's 24 fps, or something silly like that...
> 
> This is not the same thing at all.
> 
> First of all, a movie projector illuminates all points on the screen
> simultaneously - there is no vertical and horizontal scanning such as
> there is with CRT's.  They don't have to have a fast scan rate to avoid
> flicker because each frame, taken by itself, is inherently flicker-free.
> (If you stop the film on a given frame with the bulb lit, you'll just
> see a slide type of picture).  A movie need only show you frames at a
> fast enough rate so that your eye perceives it as smooth movement,
> because there is no electron gun tracing scan lines on the screen.  This
> smooth movement rate tends to happen at about 15 to 20 FPS for most
> people.  A 24 FPS movie is fast enough to be perceived as smooth by
> almost everyone.  I see 15 FPS as smooth, but some folks don't.
> 

Close... but no cigar.

Movies are -projected- at 24 fps... but the -frame rate- is doubled (or
tripled) to 48 or 72 _flickers_ per second.

(they use multibladed shutters, or shutters that rotate faster than one
flicker per frame).

A movie shown with only one flicker per frame (24 flickers and frames per
second) -does- noticably flicker for most people.

The number of people who can detect flicker drops radically at around 48
flickers per second.

At 60 flickers per second virtually no one can detect flicker.

David Trumbell's "ShowScan" system (a truly fine projections system, that
must be seen to be believed), uses 70mm film (taken and projected) at 60
frames per second (one flicker per frame :) ).  It's like watching the real
world...it's so crisp and bright... pity it isn't used commercially -- All
those people who spend way too much money on video equipment for the home
would be sad.

	-steve

.............................................................................
   swinokur%cellar@tredysvr.tredydev.unisys.com -or- swinokur@cellar.uucp
                           GEnie: S.WINOKUR  -or-
                  435 Norristown Road, Horsham PA, 19044
..................... Amiga: Hey, at least it works! ........................
Newsgroups: comp.sys.amiga.hardware
From: manacsa@l13ff.jsc.nasa.gov (Gerry Manacsa)
Subject: VGA mono & A1200?
Organization: Lockheed Engineering & Sciences Co.
Date: Wed, 30 Dec 1992 23:10:29 GMT

I'm planning to buy an A1200 RSN, and in the interest of saving money up front,
I'm thinking about buying a VGA paper-white monitor to use in conjunction
with a color composite monitor.  I would use the VGA screen for DTP and
other productivity-type work, while the composite monitor would be for 
graphics, games, and video.  

My question is, is this a feasible solution?

What is the distinction between a VGA monochrome and a VGA paper-white
monitor?  Does the former only have black and white while the latter has
shades of gray?  Or are shades of gray inherent in anything that calls itself
VGA?  Between the VGA and the composite monitors, what video modes will fall
between the cracks and be undisplayable?  Any other caveats to this setup?

Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.multimedia,comp.sys.amiga.programmer
From: epang@fraser.sfu.ca (Eugene Pang)
Subject: Re: Touch screen input?
Organization: Simon Fraser University, Burnaby, B.C., Canada
Date: Fri, 1 Jan 1993 01:04:40 GMT

gregp@gpsoft.adsp.sub.org (Dr Greg Perry) writes:
>With our GPTouch driver for the MicroTouch screen we provide for right
>button events only as menu items. If the option is selected and the touch
>is in the screen menu zone then you can get drop down menus.

I have a MicroTouch here on loan, for evaluation I guess, since it's going
back next week.  For 2.0 and above, does GPTouch run as a commodity or is
it an old style input handler?  I heard the driver from MicroTouch doesn't
run under 2.0.  *shrug*

>Is there a specific need to generate both left and right mouse buttons
>as specific button events?

Maybe for something like multi-select in the menus?

I guess I was wondering if some touch screens supported more than one
contact point...and in that way, touching some magic point on the screen
would be the rmb event, while touching in the main part would be the lbm
event.  (Still...I probably wasn't thinking straight when I posed my
question...)
From: lindblad@klaava.Helsinki.FI (Jarkko Lindblad)
Newsgroups: comp.sys.amiga.hardware
Subject: Blitter accesses?
Date: 4 Jan 93 01:03:00 GMT
Organization: University of Helsinki
X-Newsreader: TIN [version 1.1 PL6]


Is blitter able to use both odd and even memory access cycles if
available, or only even ones?

-- 
Jarkko Lindblad         | sleep my friend and you will see
lindblad@cc.helsinki.fi | that dream is my reality
------------------------| they keep me locked up in this cage
          - MetallicA - | can't they see it's why my brain say rage
From: ross@cbmvax.commodore.com (Ross Hippely - Manuals)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: HD floppy drive installation
Summary: leave J351 alone with HD floppy drives
Keywords: floppy jumper j351 df1:
Date: 22 Dec 92 14:48:32 GMT
Reply-To: ross@cbmvax.commodore.com (Ross Hippely - Manuals)
Followup-To: comp.sys.amiga.hardware
Organization: Commodore, West Chester, PA

In article <1h5dskINN15i@ford.mps.ohio-state.edu> viv@ford.mps.ohio-state.edu (John Vivian) writes:
>Has anyone sucessfully installed and utilized a CBM distributed chinon
>HD floppy drive? If so, I'm seeking advice on how to do so.
[...]
>I've switched the J351 jumper and the jumper on the back of
>the drive to make it correspond to df1: and it sucessfully supports
>the amiga 880k format. However, any read/writes to either df0: or df1:
>cause both drives to spin (though the drive not reading/writing does
>not do anything other than spin).

You get an A for effort-in-the-face-of-no-documentation, but one of your
assumptions was mistaken.  When you are using an HD drive as DF1:, you do
NOT need to change J351 from its normal one-floppy position.  The HD drives
have a bit of circuitry built in them that does away with the need to muck
with a motherboard jumper.  Not that you could be expected to know this
without documentation for using the drive.  They just haven't asked us to
write anything for it so far.

I cannot guarantee that once you change this jumper back to its previous
position everything will work fine, but it definitely will not work right
if you don't.

The jumper on the drive itself does still need to be different for DF0:
and DF1:, though, so you should be all right there.

-- 
----------------------------------------------------------------------------
Ross Hippely:                                               Technical Writer
employed by, not speaking for:              Commodore Business Machines Inc.
Xref: sparky comp.sys.amiga.hardware:22299 comp.sys.amiga.applications:9736
From: ross@cbmvax.commodore.com (Ross Hippely - Manuals)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: WB2.1 & Rexxmast
Date: 28 Dec 92 18:24:59 GMT
Reply-To: ross@cbmvax.commodore.com (Ross Hippely - Manuals)
Followup-To: comp.sys.amiga.hardware
Distribution: world
Organization: Commodore, West Chester, PA
Keywords: arexx rexxmast startup-sequence
Summary: What does ARexx require other than RexxMast?

In article <jwalkup.2yxz@terapin.com> jwalkup@terapin.com (Jeff Walkup) writes:
>Rick_Lang@amusers.UUCP (Rick Lang) writes:
>
>> This is a good change since many people would comment [Rexxmast] out of the
>> Startup-sequence file in order to custom define their rexx environment
>> via user-startup which was executed before the WB2.0 rexxmast.
>
>I don't know if it's good or not.  I mean, ARexx *doesn't work* until
>you go hacking around in your Startup-Seq.  Most people don't like to mess
>with that (or don't know _how_ to mess with it).

Are you saying that, to get ARexx working properly, something other than
(or in addition to) placing RexxMast in S:User-startup or WBStartup is
necessary?  If so, could you give some examples?

If there is indeed more than one step to it, we may want to include more 
information in future Amiga documentation.  Any details you could provide 
would be helpful.

-- 
----------------------------------------------------------------------------
Ross Hippely:                                               Technical Writer
employed by, not speaking for:              Commodore Business Machines Inc.
From: acct136@carroll1.cc.edu (Randy Kruszka)
Newsgroups: comp.sys.amiga.hardware
Subject: AGA mode prom. progs.
Date: 3 Jan 93 08:13:39 GMT
Reply-To: acct136@carroll1.cc.edu (Randy Kruszka)
Organization: Carroll College-Waukesha, WI

WOW!  Lately I've been trying to get some of those programs working which
are supposed to prevent a program from changing a AGA machine back to
standard NTSC.  (Or PAL).  Well, they seemed complicated and I couldn't
get them to work.  (Ok, I admit I tried only one).

What I found is that in the Prefs drawer is something called IControl.
Maybe a lot of you know what I'm going to say, but if you don't, read on.
There's a box there called "Mode Promotion".  Check it, save, and now all
programs that try to use any other mode work with the mode you have sele-
cted.  When I looked this up in the book, it did not show the box in the
example screen.  The text mentioned a little line on it.  I just thought I'd
mention it in case you've never tried it!

It seems like it works for everything except games, but I didn't really
expect those to work anyway.



Randy     acct136@carroll1.cc.edu
Newsgroups: comp.sys.amiga.hardware
From: gerry@pizzabox.dialogic.com (Gerry Lachac)
Subject: Need Help: A2000 Hardware Problem
Organization: Dialogic Corporation
Date: Mon, 28 Dec 92 15:49:02 GMT

I have an old A2000 (Rev 4.2 Motherboard) that I bought via the first
CBM power-up program many many moons ago.  It is currently outfitted
with 2.04, a Microway Flicker-Fixer, an old CBM 2 meg expansion card and a
GVP 030/22-combo.

Within the past month, whenever I boot the system, it will
hang at random spots during the system boot.  Sometimes a clock
program fails, sometimes Shadowmaster, sometimes Toolmanager.  It also
will crash during the first program I launch at random times.
HOWEVER, if I reset the machine 6 or 7 times (until everything seems
to work), the machine will run flawlessly until I shut if off.

I've tried everything I possibly could to track it down.  I've pulled
out all the removable memory, ran memory tests and swapped the 8250's
with each other.  I've double checked that I haven't added any new
software to the startup-sequence and virus checked multiple times.
I've even sacrificed a floppy or two over the keyboard.  I cannot seem
to find anything wrong.

Does anyone have any clues?  It seems a waste to try to repair it
since the cost of a new A2000 mother board is nearly the price of an
A1200 and I would kill to have an AGA machine.  Please email any
guesses, thanks!


-gerry



Newsgroups: comp.sys.amiga.hardware