HDTenEightyP/NetNews huggingface dataset:
From: andy@onkyo.incubus.sub.org (Andreas Goehler)
Newsgroups: comp.sys.amiga.hardware
Subject: New ChipSet
Date: 14 Dec 92 17:54:28 GMT
Reply-To: andy@onkyo.incubus.sub.org
Organization: Wanda Designes
X-NewsSoftware: GRn 1.16f (10.17.92) by Mike Schwartz & Michael B. Smith


Lately I have been reading about `new generation of chipset'.
Can anyone tell me more about these chips ???

--

   .: AndY :.
    ___________________________ _____________  _______________________________
   |                  /    |   \   |     \   \/   /                           |
   | Andreas Goehler /     |       |      \   \  /       Phone & UUCP         |
   |    Wuerzburg   /      |       |   \   \    /     +49-(0)-931-273693      |
   |     Germany   /   /   |       |   /   /   /  andy@onkyo.incubus.sub.org  |
   |______________/___/____|___\___|______/___/_______________________________|
From: Bradley@amusers.UUCP (Bradley)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: World of Commodore Notes
Distribution: world
Date: 17 Dec 92 09:12:31 PST
Organization: AmUsers - The Amiga Users Group of Victoria BC

In a message dated Wed 16 Dec 92  2:59, harry@elfuerte.fipnet.fi (Harri P
Pesonen) wrote:

 HPP> I have a A3000 pregnant mouse, and I am not going to trade it, but if
 HPP> anyone knows how it can be opened (to clean it up), please tell me. 
It
 HPP> has
 HPP> no screws or anything like it.  I have tried to pull it open with no
 HPP> success.

 HPP> -- 
 HPP>     Harri Pesonen               harry@elfuerte.fipnet.fi
 HPP>     Helsinki, Finland, EC?      Markka is floating...  1 USD = 5.1
FIM


        There are two screws on the bottom of the mouse, but they are
hidden by the serial number sticker.  Carefully remove the sticker to gain
access to the two screws.

 -- AEd V1.37/Eval

-- Via DLG Pro v0.995

Newsgroups: comp.sys.amiga.hardware
From: torrunes@idt.unit.no (Tor Rune Skoglund)
Subject: Re: Quantum LP120S
Reply-To: torrunes@idt.unit.no (Tor Rune Skoglund)
Organization: Norwegian Institute of Technology
Date: Wed, 16 Dec 92 10:56:42 GMT

In article <1992Dec16.021320.21415@samba.oit.unc.edu>, mcphil@med.unc.edu (Philip McNamara) writes:
|> 
|> Ok, simple question number 1.  How many megabytes will fit on  a 
|> Quantum LP120S?  120 or close enough to round up?  So... like 
|> 115 or 119?  I just purchased a new one from Computer Shopping
|> Network and can only get 114 mgeabytes using FFS.  The drive did not
|> come with a sector error chart, so I am assuming no errors.  Safe
|> assumption?  I don't know, can someone help?

You should get approx. 115-116 MB from a 120 drive. 114 may be right, but
it sounds like you are one meg or two short. Also, Quantum has their own
definition of MB on some of their drives: 1 MB = 1000000 bytes !

You don't have to worry about sector errors. SCSI handles this automatically
for you, by remapping bad sectors.

BTW, the Quantum LPS120 drive is out of production now. What a pity, it's
an extraordinary fast drive...
 
|> Philip McNamara 
|> McPhil@med.unc.edu 

- Tor Rune Skoglund 
       __
      /// E-mail: torrunes@solan.unit.no
     /// Postal: Tor Rune Skoglund, Linerlevn 7B, N-7022 Trondheim, Norway
__  /// ----------------------- Calvin`s wise words #1 ---------------------
\\\/// 'Sometimes I think the surest sign that intelligent life exists
 \/// elsewhere in the universe is that none of it has tried to contact us.`

P.S. Anyone know where to find 44-pin IDE cables for A600/1200?
Organization: Sophomore, Math/Computer Science, Carnegie Mellon, Pittsburgh, PA
Newsgroups: comp.sys.amiga.hardware
Date: Thu, 17 Dec 1992 13:50:02 -0500 
From: "Alex R.N. Wetmore" <aw2t+@andrew.cmu.edu>
Subject: amiga 2 multisync problems

I am trying to make an adapter so that I can use my Teknika monitor with
my amiga 1000.  It didn't come with the cable, but I know that they make
one (they talk about using it in the manual).  I have built my own cable
with the following pinout:
Name    Amiga           Monitor
Red     3               3
Green   4               4
Blue    5               5
Hsync   11              8
Vsync   12              9
Ground  16,17,18,19,20  1

There seems to be a problem with it though.  When I boot up it works
fine until it asks for a workbench disk.  Right before the graphic with
the disk would come up the sync on the monitor dies.  If I unplug the
cable from the monitor before booting it seems to work fine (and also if
I use a b/w composite monitor on the comp out port).  ALso, I can plug
the rgb monitor in again after the workbench starts loading and
everything works again (although I can't unplug it and plug it back in
when the sync goes out, the whole machine appears to lock at that
point).  

I read that if the amiga sees a high current draw on the sync lines that
it assumes that there is a genlock connected (or something like that). 
Should I buffer my lines to sync?

thanks,
alex

Newsgroups: comp.sys.amiga.hardware
From: y88kenek@odalix.ida.liu.se (Kenneth Ekman)
Subject: Re: 1024 x 768
Organization: CIS Dept, Univ of Linkoping, Sweden
Date: Sat, 19 Dec 1992 23:27:57 GMT

First: No, I don't usually comment on my own articles...


y88kenek@odalix.ida.liu.se (Kenneth Ekman) writes:

>spence@cbmvax.commodore.com (Spencer Shanson) writes:

>>A 1024 x 768 mode would have a refresh rate of 30Hz. Hardly useable!

>I don't want to agree there...
...

I think I see what you mean... I got a little carried away there. 
That's 15 Hz without intelace... Unuseable, like you said...

Think first, mail later, huh? :-)

> 
>>---------------------------------------------------------------------------
>>Spencer Shanson - Amiga Software Engineer     | email: spence@commodore.COM
>>                                              | or uunet!cbmvax!spence
>>All opinions expressed are my own, and do not | Bix: sshanson
>>(necessarily) represent those of Commodore.   | Weebles Wobble, but
>>                                              | they don't fall down.

>Kenneth Ekman - EE student at the University of Linkoping, Sweden
From: bjst@sth.frontec.se (Bjorn Stenberg)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A1200 with 3.5" IDE HD possible ?
Date: 20 Dec 92 15:07:48 GMT
Organization: IDK/Frontec - System Design Group

cbmehq!cbmnor!pnilsen!petter@cbmvax.commodore.com writes:
> Is it possible to install a 3.5" HD in the A1200 instead of the 2.5" ?
> 
> Someone here mentioned that he'd done it, but I can't find the posting
> any longer.

I remember someone saying here that you could fit a 3.5" HD if you remove
the internal floppy drive. I can't confirm this, though.

		-- Bjorn

---------------------------------------------------------------------------
Bjorn Stenberg, Stockholm, Sweden                       bjst@sth.frontec.se
---------------------------------------------------------------------------
From: trat@amiganet.chi.il.us (Tom Reamer)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: The "cool" fan debate  (was A4000 QC problems?)
Date: 17 Dec 92 02:27:20 CST
Organization: Amiga Network Information Systems

In article <1992Dec10.144918.22072@zds-oem.zds.com>, benjamin@zds-oem.zds.com
(Adam Benjamin) writes:
>
>In article <1992Dec10.114117.21530@eua.ericsson.se> etxpihl@eua.ericsson.se
writ
>es:
>>In article 07df@myamy.hacktic.nl, Boinger@myamy.hacktic.nl (Paul
Kolenbrander) 
>writes:
>>> In article <1992Dec8.142542.11620@jupiter.sun.csd.unb.ca>
p9b3@jupiter.sun.cs
>d.unb.ca (Dan Fleet) writes:
>>
>Various coments/concerns regarding the sucky/blowy 4000 fan deleted...
>
>I'm pretty sure the fan would work best if it was blowing out of the 4000.
>either way may be ok.  
>What I find interesting is the lack of a CBM response to the question.
>
>This leaves me to assume (uh-oh) that commodore forgot to write it into
>the spec for the power supply. (We have done that here before) So there is 
>no correct answer they can give.  
>Maybe they assumed the power supply vendor knew that commodore sucks? 
>  (heh heh, I couldn't resist)
>I haven't had a lick of trouble with my replacement 4000 (yea!) and it has
>been on about 60 hours total now.
>
>
>/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>   //   benjamin@zds-oem.zds.com  OR    af987@yfn.ysu.edu
> \X/  Adam Benjamin          Insert snappy humor here
>\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
>
yep!!!  I got my replacement 4000 in a day from Commodore and haven't had a bit
of trouble!!
From: dkbrown@dkbsoft.UUCP (Dean Brown)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Piggy-Backing 2 DKB INSIDER 1MB Boards
Distribution: world
Date: 14 Dec 92 10:14:28 EDT
Organization: DKB Software

In article <2234@newsserver.cs.uwindsor.ca> peters@server.uwindsor.ca (Peter Steeves) writes:
> DKB originally put out the INSIDER 1MB board about 5 years ago. I remember
> hearing that two (or more) of these could be installed on an A1000. Could
> some one please tell if this is correct and how it can be done. Also, can 
> these boards be used in an A500?
My normal answer to the question of stacking two Insider boards is that we
don't advertize that capability, and the board wasn't designed for it.
Having said this, there are a number of people who went ahead and stacked 
them anyway and never reported any problems to me. (CYA mode here.) I have
tried stacking Insiders in the A1000 and everything worked for me, but I
can't garantee from a business perspective.
There is no way that the Insider will fit into the A500 unless you let the
board stick out where the keyboard would normally go. This may not be a
problem if you are using a tower case, but for most cases you wouldn't 
want to.
> 
> Thanks.
>                                                        PETER
> -- 
> Peter Steeves
> UofW
> Windsor, Ontario, Canada
> peters@server.uwindsor.ca

-- 


    Dean Brown                  linx!dkbsoft!dkbrown@vela.acs.oakland.edu
    DKB Software
From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: World of Commodore Notes
Date: 15 Dec 92 06:24:41 GMT
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA

In article <1992Dec09.044440.17073@bmerh85.bnr.ca> Hamish.Macdonald@x400gate.bnr.ca (Hamish Macdonald) writes:

>One thing he mentioned was the the reason the HD floppy wasn't put in
>the 1200 is that it doesn't *fit*.

That's true.

>Regular floppies are 25mm high.  The HD floppies are 32mm high (room
>for two motors for the 2 different rotation speeds).

Funny, but false.  There's only one motor.  The HD floppies are built in the
standard 3.5" form factor.  The 25mm is a newer thing, and the HD drives aren't
currently available in that size.


-- 
Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
 "The Crew That Never Rests"  {uunet|pyramid|rutgers}!cbmvax!daveh   BIX: hazy
		SCIENCE:	"I'll believe it when I see it"  
		RELIGION:	"I'll see it when I believe it"
From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Hurricane '030 incompatible with 2.1 setpatch?
Keywords: 2.1 problem
Date: 15 Dec 92 10:09:43 GMT
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA

In article <1992Dec9.160352.4621@sparky.imd.sterling.com> chris@.IMD.Sterling.COM (Chris Olson) writes:
>Last night I was helping my brother upgrade from 1.3 to 2.1.  He 'had' a
>Hurricane 030 board in the CPU slot of his 2000.  Funny thing was, the 2.1
>was crashing (8000 0004 ???? ????) everytime during the 2.1 boot sequence.
>I think we isolated it to the SetPatch command.  I'm not sure.  The thing would
>boot up using a 1.3 startup disk.  It boots fine minus the accelerator.

The problem is the Hurricane accelerator.  Unlike most '030 systems, the 
Hurricane doesn't manage caching in hardware.  Because of this, it can only
cache its own memory, and it needs an MMU table to tell it what's cachable.
When you boot up, the system comes up with I-Cache on only (no problem, the
missing cache management logic affects only data caching), but as soon as
SetPatch is run, the data cache is turned on, and the Hurricane dies.  You
need to specify NOCACHE on the SetPatch line in your Startup-Sequence.  You may
be able to enable it later, I think "SetCPU FASTROM CACHE" would do the job.

-- 
Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
 "The Crew That Never Rests"  {uunet|pyramid|rutgers}!cbmvax!daveh   BIX: hazy
		SCIENCE:	"I'll believe it when I see it"  
		RELIGION:	"I'll see it when I believe it"
From: gsarff@wicat.com (Gary Sarff)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: AGA artifacts, shimmer
Keywords: AGA
Date: 15 Dec 92 19:23:03 GMT
Organization: WICAT Systems

skip@tacky.cs.olemiss.edu (Skip Sauls) writes:

>In article <1992Dec15.032707.8522@netcom.com> tres@netcom.com (Gary Chow) writes:
><much deleted>
>>
>>I have a 4000 sitting right in front of me.  And I can assure you that
>>David is not "seeing things" there are vertical lines 8 pixels apart!
>>(But you have to look real close) ... and it doesn't really bother me

>*** Action: Slu presses his nose against the screen and strains to see
>+the vertical lines...

>Are you using an A1960 also?  Perhaps this problem occurs with the A1960,
>but I can assure you that it does not with a Samsung SyncMaster 3, a
>Seiko 1450, or older Amdek multiscan...

I also see vertical lines regularly spaced across the screen, and I also
have a 1960 monitor.  Has anyone from commodore responded to any messages 
like this?  I know that other topics occasionally garner responses but the
video thing seems to be a discussion in a vacuum by owners of 4000's with out
any replies to the many people's questions.  I am still working with my
dealer, (glad I did not get this thing mail order), he has just received in
another shipment of 4000's and we are going to compare and trade mine if
necessary.  He has helped alot.
---------------------------------------------



-- 
-----------------------------------------------------------------
  []   (the null signature)
Newsgroups: comp.sys.amiga.hardware
From: jdb8042@blkbox (John D. Baker)
Subject: Adaptec SCSI<-->MFM and SupraDrive 500XP
Organization: The Black Box, PO Box 591822 Houston, TX 77259-1822 
Date: Sun, 20 Dec 1992 23:45:04 GMT
Summary: Format Software knows about it.  Can't mount at startup.
Keywords: Formats OK  Won't mount.

I recently purchased a SupraDrive 500XP and wanted to use an
Adaptec ACB 4010 SCSI<-->MFM controller board with an old 10MB
MFM hard disk I have.

The SupraDrive is equipped with the latest ROM (v3.8) and the
software is the Series III release (v3.8).

The Adaptec board is set at SCSI 1 and has extended commands
enabled.

SupraForm recognizes that the device is out there and includes
options for Adaptec ACB 4000 (which should work for the 4010)
and the ability to set custom drive geometries (mine is
306 cyl. 4 hd., 17 sec/trk, etc.)

It will format the drive just fine (at least it steps the heads
across the disk like it's formatting).

If the MAP option is turned ON, the verify process will get
nothing but errors until it aborts at 100 errors.  If the MAP
option is turned OFF, it simply reports that it's performing
a 'zero' of the disk and instructs me to re-boot.

In either cas the SupraDrive ROM can't find an RDB and
cannot mount that drive on startup.  it tries to mount the
disk every 10 seconds while the machine is on (at least I
assume that's what it's trying to do).

I even triedusing the MessyFormat command in the MSH package
to format it for MS-DOS (just to experiment).  The command

     MessyFormat 1 suprascsi.device

would access the drive and run thugh all the heads and cylinders
like it was really formatting it or some junk. and it really sound
ed like things were happening.

(I wrote an appropriate MountList entry for an MS-DOS hard disk
using suprascsi.device and MessyFileSystem.  the system reports
'Not a DOS disk in unit xxx' when an access is attempted.

Alright.  What experiences has anyone here had with using
Adaptec MFM-SCSI boards on their Amigas.  (Anyone use one
with a SupraDrive 500XP?)

Just for grins, I ran the SupraChkRom utility and it reported
"Rom is missing, improperly installed or BAD" when I first
got the thing.

This was strange as my Quantum LP52S whic I have installed inside
the 500XP has worked flawlessly from the word go (Even though
the ROM still reported BAD!)

Since then (about 2 weeks) the ROM now reports GOOD!  Huh?!?!?
The Adaptec board and drive still don't work.

I've called Supra Tech Support and they are clueless.  (See
comp.dcom.modems for more of my troubles :(  ).

I would appreciate any and all feedback that anyone can offer.

Thank you very much.


John D. Baker  ->An Apple CardZ180 Z-System nut//
Internet:  jdb8042@blkbox.com            jdbaker@taronga.com
UUCP:      nuchat!blkbox!jdb8042         ...!taronga!jdbaker
BBSs:  JOHN BAKER on Z-Node #45 [(713) 937-8886],
The Vector Board [(716) 544-1863], PIC of the Mid-Town [(713) 527-8939]
Karnage: "I am certainly very happy for you, but--WHAT ARE YOU TALKING ABOUT?!"
From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Stupid question of the week: Why not a VGA card in your A2
Date: 16 Dec 92 21:01:44 GMT
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA

In article <BzC4t2.I8w@news.cso.uiuc.edu> dvsg0223@uxa.cso.uiuc.edu (David Salamon) writes:
>Boinger@myamy.hacktic.nl (Paul Kolenbrander) writes:

>>In article <1992Dec13.030321.19353@spartan.ac.BrockU.CA> tmc@spartan.ac.BrockU.CA (Tim Ciceran) writes:

>>> >> It already has been done: the GoldenGate II (not to be confused with
>>> >> Vortex's "Golden Gate" products) from David Salamon.
>>> >Hmm. tell me, who's writing the driver for it? This would mean my
>>> >386 would lose it's ET-4000 sVGA card to Amy PDQ. :-) 

>I think we have some name confusion here.  The GoldenGateII bridgecard is 
>my Amiga-to-PC bus interface board.  It can indeed use a VGA or SuperVGA, 
>etc. card to display graphics, and when Retargetable Graphics (RTG) becomes
>available you WILL be able to use your entire workbench through the VGA card at
>full Zorro bus speed.  Note that my board merely acts as a bus translator,
>and has no microprocessor.

The oMniBus board I mentioned before does essentially this, now.  This board
is a bus translation Bridge Card, probably designed just to handle Zorro II to
VGA translations (I gather GoldenGate does arbitrary ISA to Zorro II bus 
translations).  The board also has what amounts to a software controller A/B
switch box, which can gate through either Amiga or VGA card video to your
monitor.  The software provided does a pretty good job of providing several
new monitor types that run on the VGA card.  You can have Workbench, public
screens, or most anything that uses the monitor type file requester running
on the VGA card.  Obviously, RTG would make this more efficient and more
compatible, but it's run most of what I've thrown at it so far (one reason it
works as well as it does is that it will switch in real Amiga video when that
kind of monitor type is requested -- some kind of promotion/coersion of
monitor types on alternate displays like this would be really tough to get
right).

-- 
Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
 "The Crew That Never Rests"  {uunet|pyramid|rutgers}!cbmvax!daveh   BIX: hazy
		SCIENCE:	"I'll believe it when I see it"  
		RELIGION:	"I'll see it when I believe it"
From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: 8520 CIA chips
Date: 15 Dec 92 04:29:43 GMT
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA

In article <1fjktrINNibl@escargot.xx.rmit.OZ.AU> rxtajp@minyos.xx.rmit.OZ.AU (Andrew Pettifer) writes:
>Does anyone know what the alternate part number for the 8520 cia chips is?
>I KNOW there is such a number, might be 65xx something, can someone post
>the number please?

You're ever-so-slightly confused.  The C64 used a part called the 6526.  The
8520 was derived from the 6526, but it's different in several ways.  There's 
also an 8521, which is the same as the 6526 (well, a few bugs were fixed).

-- 
Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
 "The Crew That Never Rests"  {uunet|pyramid|rutgers}!cbmvax!daveh   BIX: hazy
		SCIENCE:	"I'll believe it when I see it"  
		RELIGION:	"I'll see it when I believe it"

Newsgroups: comp.sys.amiga.hardware
From: dylan@cs.washington.edu (Dylan McNamee)
Subject: Canon PJ1080 ink cartridge sources...?
Organization: Computer Science & Engineering, U. of Washington, Seattle
Distribution: na
Date: Thu, 17 Dec 92 21:51:50 GMT


I'm looking for an ink cartridge for my PJ1080a.  Does anyone know
where I can get them?  I know Radio Shack used to sell a repackaged
1080 -- they still sell ink for one of their two old inkjet  printers,
but I don't know the RS equivalent model number...

any help would be appreciated!

dylan
Newsgroups: comp.sys.amiga.hardware
From: mtpins@icaen.uiowa.edu (Michael T Pins)
Subject: Re: My audio ports are REVERSED!
Date: Wed, 16 Dec 1992 07:07:31 GMT
Organization: University of Iowa, Iowa City, IA, USA
X-Newsreader: NN version 6.4.19

jeremym@fraser.sfu.ca (Jeremy Thomas McDonald) writes:

>I have an A3000/25 and my audio ports are reversed (left is right and right
>is left).  How do I know this?  I have programmed audio channels 1 and 2
>and they both come out of the LEFT side of the jacks.  0 and 3 come out of
>the RIGHT side.  Argh.  The RKM says the opposite, and so does MultiPlayer
>and EdPlayer2.1 (in VU mode 2).  Anyone else have the same problem?     
>Is this true for all A3000s?  A4000s?  A1200s?  etc. etc.  Maybe the
>motherboard designer had a bit too much to drink that day :)
>Please reply.  I intend to market an audio program, and it would be nice
>if I knew which side is which!   Thanks in advance...

On many (most? all?) A3000s, the audio ports are indeed reversed.
The easy fix, of course, is to simply swap the audio leads on the back of the
Amiga.  :-)
It is a rather silly mistake on C='s part though.

-- 
*****************************************************************************
* Michael Pins                |   Internet: amigapd@isca.uiowa.edu          *
* ISCA's Amiga Librarian      |         #include <std.disclaimer>           *
*****************************************************************************
From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: ECS, AGA bandwidth?
Date: 11 Dec 92 16:46:25 GMT
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Distribution: comp
Organization: Commodore, West Chester, PA

In article <MJL.92Nov27055025@dino.ph.utexas.edu> mjl@dino.ph.utexas.edu (Maurice J. LeBrun) writes:

>A friend of mine recently bought a 486/localbus machine and says he can get
>100 Mbits/sec between the video memory and CPU.  Sounds to me that this is a
>bit faster than ECS but I'm not sure -- does anyone have the figures for ECS
>bandwidth for an A3000?

100 Mbits/sec == 12.5 MB/s.  The A3000's CPU bandwidth to Chip RAM is up to
7 MB/s, depending on how much time is being stolen by the ECS chips (could be
none, could be lots).

>Also, I've seen about a dozen times that AGA is 4X faster than ECS for the
>highend machines.  I believe this is due to doubling the data path (32 bits
>instead of 16) and doubling the internal clock speed (4x7.16 MHz instead of
>2x7.16 MHz).  Is this correct?

Kind of.  The bus is now 32-bits wide.  The Lisa chips does run from the 28MHz
clock directly, but that's primarily used for nice, clean pixel transitions.
The extra bandwidth is in video fetches.  In normal operation, Lisa grabs 
two 32-bit words in the time Denise would grab one 16-bit word.  This works
a bit like the A3000's burst mode.



-- 
Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
 "The Crew That Never Rests"  {uunet|pyramid|rutgers}!cbmvax!daveh   BIX: hazy
		SCIENCE:	"I'll believe it when I see it"  
		RELIGION:	"I'll see it when I believe it"