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1992-11-24
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22KB
Path: menudo.uh.edu!menudo.uh.edu!usenet
From: excalib!flooby!johnl@UCSD.EDU (John Lindwall)
Newsgroups: comp.sys.amiga.reviews
Subject: REVIEW: Commodore Amiga 4000
Followup-To: comp.sys.amiga.hardware
Date: 24 Nov 1992 15:09:32 GMT
Organization: The Amiga Online Review Column - ed. Daniel Barrett
Lines: 442
Sender: amiga-reviews@math.uh.edu (comp.sys.amiga.reviews moderator)
Distribution: world
Message-ID: <1etgjcINN3aj@menudo.uh.edu>
Reply-To: excalib!flooby!johnl@UCSD.EDU (John Lindwall)
NNTP-Posting-Host: karazm.math.uh.edu
Keywords: Amiga, computer, hot topic, commercial
PRODUCT NAME
Commodore Amiga 4000 computer
BRIEF DESCRIPTION
The Amiga 4000 (A4000) is a 68040-based system running at 25 MHz.
The system comes with a 120 MB hard drive and high-density floppy drive.
The A4000 includes the new AGA chipset allowing 256 color screens and HAM8
screens.
COMPANY INFORMATION
Name: Commodore Business Machines
Address: 1200 Wilson Drive
West Chester, PA 19380
USA
LIST PRICE
$3699 (US). Actual store prices in my area are closer to $3000 (US).
INTRODUCTION
The Amiga 4000 (A4000) was introduced at the World Of Commodore Amiga
Show (WOCA) in mid-September of 1992. I got my first look at the machine at
WOCA and was impressed enough to purchase one.
I am very happy with the machine; it is much nicer then the A1000 it
replaced. :-) This review was written after using the A4000 for 2 weeks.
HARDWARE
Benchmarks! Thats all you people care about! :-) Many people have
already posted A4000 benchmark results to the net so I'll quickly summarize
some results from my machine. Sysinfo 3.01 claims: 17910 DhryStones, 18.69
MIPS, 4.73 MFLOPS. AIBB 5.0 includes performance figures from the A4000. My
machine matched the expected results listed by AIBB 5.0; using 68020+ or
68040-specific math routines resulted in an up to 10x speed up over the
listed speeds.
[MODERATOR'S NOTE: Steve Koren's review of the A4000 appeared
previously in comp.sys.amiga.reviews and contains tables of benchmark
information. This review is available on our ftp site and by
request as usual. - Dan]
The appearance of the A4000 is not stylish like the A3000 -- it
looks a lot like a PC clone. All in all, it looks better then I recalled it
(from seeing it WOCA). I do like the ivory color if box, keyboard, & mouse.
Poor aesthetics is a price I happily pay, however, since the box has
plenty of room inside for expansion unlike the A3000. The A4000 can hold:
Front bay: 1 half-height 5.25" device.
1 half-height 3.5" device OR 2 low profile 3.5" devices.
Rear bay: 1 half-height 3.5" device or 2 low profile 3.5" devices.
From gossip on the nets and from briefly examining my system, it appears
that the supplied floppy drive is half-height, and therefore too tall to
allow space underneath for a second floppy drive. Apparently, two 25mm-high
floppy drives can be stacked in the front bays. The hard-drive appears to
be low-profile (taking up one of the two rear 3.5" slots).
[MODERATOR'S NOTE: From discussion with the reviewer, it seems he
is not 100% sure whether the floppy drive is too tall or not. I
would appreciate it if someone from Commodore could clear up this
question, since I do NOT want to start any rumors. My dealer told
me that you CAN fit a second floppy drive underneath. When I get an
official answer, I will update this review. - Dan]
The hard drive supplied with my A4000 is a Seagate ST3144A, a 3.5"
IDE drive. I can't say I have much joy over getting a Seagate drive; I'm not
impressed with their track record. Hopefully, this model of drive will be
problem-free. Only time will tell. The drive came preformatted, with an 8
Meg Workbench: partition, and a 116 Meg Work: partition.
| Hard Disk performance (as reported by DiskSpeed 4.2) is summarized below:
|
| MKSoft DiskSpeed 4.2 Copyright 1989-92 MKSoft Development
| ------------------------------------------------------------
| CPU: 68040 AmigaOS Version: 39.106 Normal Video DMA
| Device: hd1: Buffers: 330
|
| CPU Speed Rating: 3107
|
| Testing directory manipulation speed.
| File Create: 250 files/sec | CPU Available: 12%
| File Open: 324 files/sec | CPU Available: 8%
| Directory Scan: 1696 files/sec | CPU Available: 15%
| Seek/Read: 1381 seeks/sec | CPU Available: 16%
|
| [Performance peaked with the following parameters:]
| Testing with a 262144 byte, MEMF_FAST, LONG-aligned buffer.
| Create file: 264110 bytes/sec | CPU Available: 80%
| Write to file: 459955 bytes/sec | CPU Available: 72%
| Read from file: 774809 bytes/sec | CPU Available: 45%
|
| [CPU usage summary was as follows:]
|
| Average CPU Available: 72% | CPU Availability index: 2237
The A4000 comes with 6MB of RAM; 2 MB Chip RAM and 4MB Fast RAM.
There are 5 SIMM Slots in the A4000. One slot is intended for a 2MB Chip
RAM SIMM, which is of course included with the computer. The other four
slots are for Fast RAM expansion, and each slot can hold either a 1MB SIMM
or a 4MB SIMM. All fast RAM SIMMS must be of the same type. Fortunately,
Commodore used a 4MB SIMM to supply the A4000's 4MB Fast RAM instead of
using 4 1MB SIMMS. This means I can upgrade to 8, 12, or 16 MB of Fast RAM
just by adding additional 4MB SIMMS in the remaining three empty slots. The
use of SIMMS (instead of ZIPS as in the A3000) is a good thing, as SIMMS are
used in PC's and hence are widely available and inexpensive.
The high-density floppy supplied with the A4000 works great.
One thing that caused me a moment of confusion was trying to use a
high-density floppy in df0: that had been formatted (under 1.3) as an 880K
Amiga floppy. The high-density drive recognizes the disk as a high-density
disk, so it claimed that the disk was not a DOS floppy. Moral: either
don't format high-density floppies to 880K, or (if you must) put tape over
the floppy's high-density notch.
The mouse/joystick connectors are inconveniently located on the left
side of the unit. This would be OK if the supplied mouse had a long cable.
Unfortunately, the mouse cable is woefully short IMHO; I worked around this
problem by setting my A4000 on a stand and feeding the mouse cable from
underneath the unit. A mouse-extender cable would also do the trick.
Left-handed people won't have this problem.
The mouse is one I've not seen before from C=. It resembles a
MicroSoft ("Dove bar") mouse and is shaped nicely. The button click is very
nice as well. A nice improvement.
The keyboard is adequate. The feel of the keys is OK. I wish that
the backspace key were double width, like on my A1000 and the PClones at
work.
The A4000 front panel has a power LED, hard drive access LED, floppy
drive, power switch, and a key lock with 2 identical keys. When the system
is locked using the key, the system will not accept input from the mouse or
keyboard. Mouse _buttons_ are still recognized however, so the manual
cautions you not to leave the mouse pointer resting on a gadget or icon!
The rear of the A4000 has: stereo sound output (2 RCA jacks),
external floppy port, video port, parallel port, serial port, keyboard plug,
and power cable plug. There is also a plug for your monitor's power cable,
so that when you turn on the A4000 the monitor comes on as well. This is a
nice touch. I'll need to get a adapter plug for my monitor cable so I can
use this feature.
The fan in the A4000 is reasonably quiet. It is quieter then the
Compaq DeskPro 50M at work; but (of course) much noisier then the almost
silent A1000 fan. I can live with it.
The A4000 case is very easy to open; remove two screws on the back
and pop open the cover. Much easier then many PC's I've used. One of these
screws is covered by a warranty sticker; removing the sticker apparently can
void your warranty.
My 5 year-old A1010 drive works just fine connected to the external
floppy port (It is df2: instead of df1: of course).
I have not tried any Zorro II or Zorro III boards in my A4000.
GRAPHICS
By now, you're all familiar with the graphics capability of the AGA
chips so I won'