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- Path: menudo.uh.edu!menudo.uh.edu!usenet
- From: Chris_Pappe@edtng.kenosha.wi.us (Chris Pappe)
- Newsgroups: comp.sys.amiga.reviews
- Subject: REVIEW: Derringer accelerator board for A500/A2000
- Followup-To: comp.sys.amiga.hardware
- Date: 10 Dec 1992 17:08:25 GMT
- Organization: The Amiga Online Review Column - ed. Daniel Barrett
- Lines: 284
- Sender: amiga-reviews@math.uh.edu (comp.sys.amiga.reviews moderator)
- Distribution: world
- Message-ID: <1g7ti9INNsmq@menudo.uh.edu>
- Reply-To: Chris_Pappe@edtng.kenosha.wi.us
- NNTP-Posting-Host: karazm.math.uh.edu
- Keywords: accelerator, 68030, hardware, A500, A2000, commercial
-
-
-
-
- PRODUCT NAME
-
- Derringer accelerator board
-
-
- BRIEF DESCRIPTION
-
- Accelerator board for Amiga 500 & 2000. Uses a 68030 CPU running at
- 25MHz with optional FPU at 25MHZ or 50MHz. Allows expansion to 32Mb of 32bit
- RAM using a 72 pin SIMM.
-
-
- COMPANY INFORMATION
-
- Name: Computer Systems Associates (CSA)
- Address: 7564 Trade St.
- San Diego, CA 92121
- USA
- Telephone: (619) 566-3911
- Tech Hotline: (619) 566-3923
-
-
- LIST PRICE (all prices in US dollars)
-
- Derringer 68030 @ 25MHz No FPU or RAM: $249.95 *
- Derringer 68030/882 @ 25MHz + 4Mb 3bit RAM: $589.00
- Derringer 68030/882 @ 25/50MHz + 4Mb 32bit RAM: $664.00
-
- * Note: CSA does not sell the Derringer board without RAM.
-
-
- HARDWARE REQUIREMENTS
-
- A500 or A2000 computer. (Can be made to work in A1000)
-
-
- SOFTWARE REQUIREMENTS
-
- None.
-
-
- HARDWARE/SOFTWARE COMPATIBILITY
-
- The Derringer was designed to run in A500 & A2000 computers using
- Commodore hardware and software. Most third party hardware and software
- that conforms to Commodore's guidelines should be compatible. CSA has a
- Technical Hotline (above) where you can ask questions regarding the
- compatibility of specific third party hardware and software.
-
- Since the Derringer plugs in to the 64 pin DIP socket where the
- 68000 would normally reside, it would seem that other devices that plug into
- the 68000 socket (ATOnce etc) would be incompatible, if only from a physical
- standpoint.
-
- Kickstart versions 1.2, 1.3 and 2.0 will all work with the Derringer.
-
-
- COPY PROTECTION
-
- None.
-
-
- REVIEW SYSTEM
-
- The Derringer is installed in an A500 configured as follows:
-
- o Rev5 motherboard w/SupraRAM500 & 1Mb Agnes
- o GrandSlam500 w/Quantum105 & 8Mb Fast RAM
- o Derringer 030/882 @ 25/25MHz & 8Mb 32bit Fast RAM
- o Kickstart 1.3, Workbench 1.3
-
- REVIEW
-
- I received my Derringer the first week of November 1992. I had
- heard about it while I was looking for an accelerator, so I called CSA.
- They directed me to their sole distributor, where a dozen or so advance
- issues of the board had been sent. I was in luck and obtained an early
- Derringer. It came in a static-proof plastic bag with 6 pages of
- installation and operating instructions.
-
- The board itself looks very well made, utilizing 6 layers and
- surface mount technology. It measures 6" deep by 6 1/2" wide. With a SIMM
- installed, its width increases by 1/2" to 7" wide. The processor and math
- chips are socketed, and the only crystal on the board is clocked at 50MHz.
- There is, however, a place for a second crystal to be installed. CSA says
- it is for future expansion. It could be used to drive the FPU at a
- different speed than the processor.
-
- There are five jumpers in various locations on the board, and they
- serve the following functions:
-
- JP1 Select 50MHz or 25MHz Math Co-Processor.
- JP2 Select 68030 or 68000 for next boot.
- (External switch can be installed here.)
- JP3 E-Clock source. (68000 installed or not)
- JP4 Hardware Cache Disable (Development Use)
- JP5 Hardware MMU Disable (Development Use)
-
- One of the best features of the Derringer is the 72 pin SIMM
- socket on the right edge of the board, toward the back. This socket
- will accept the industry standard PS2 style 72 pin SIMM, available in
- 1, 2, 4, 8, 16 and 32 megabyte sizes. Current mail order prices are
- US$14 for 4Mb, US$310 for 8Mb and US$620 for 16Mb. Prices for the
- 32Mb SIMM were not available yet.
-
- Installing the Derringer was a breeze! Simply remove the 68000 and
- re-install it on the Derringer in the empty socket provided. Then plug the
- Derringer into the 68000 socket on the motherboard. The DIP header for
- plugging in to the 68000 socket is located on the left edge of the board
- towards the front.
-
- [MODERATOR'S NOTE: Although Chris says that installing the board is
- easy ("a breeze"), it does involve opening up your Amiga and
- removing the processor. If you are not comfortable doing this kind
- of installation yourself, you should have it done by a trained
- technician. - Dan]
-
- The diskette that accompanies the Derringer contains software to
- configure the 32 bit RAM expansion and move system routines into faster 32
- bit RAM. Simply add some commands to your startup-sequence [or your
- user-startup under 2.0], and the software will allow you to copy the
- Kickstart ROM to 32 bit RAM, and move exception vectors and supervisor stacks
- from chip RAM to 32 bit RAM. Also, a memory resident option allows you to
- re-boot your machine and have all system code, drivers, libraries, etc.,
- reside in 32 bit RAM. This makes for a significant increase in the speed of
- the operating system. Since the Kickstart ROM image in 32bit RAM is accessed
- using special hardware, the MMU is available for use with other software
- that utilizes an MMU, such as Gigamem.
-
- Another program on the disk allows you to control the data and
- instruction caches on the 68030. Caches may be turned on or off and burst
- mode enabled or disabled. The cache utility is not needed under WB2.0 since
- the c:CPU command is available.
-
- BOOT68000 is the name of the other utility program. Although you
- can install a switch on the jumpers JP2 and select 68000 or 68030 that way,
- a more convenient way for most will be to boot into 68030 all the time, and
- then when you need 68000 compatibility just run BOOT68000. Executable from
- the CLI or Workbench, this program causes the machine to reset and boot up
- using the 68000 installed on the Derringer.
-
- The next step, turning the computer back on, had me wondering which
- of the numerous libraries, drivers and resident programs that I use was
- going to cause a crash. To my surprise, it booted up normally and presented
- me with my usual Workbench screen. I ran every program on my hard drive
- without a hitch but I didn't see that much of a speed increase. A quick
- check with SysInfo showed me running at 1.67 times the speed of a standard
- machine. This is the kind of performance you can expect when you don't have
- any 32bit RAM. Adding CSA's software to my startup-sequence and re-booting
- showed the kind of speed I was expecting, Sysinfo now showed 7.25 times the
- speed of a stock A500.
-
- I was expecting to have to completely redo my startup-sequence, but
- the only change I had to make was the addition of the two CSA utility
- programs. All programs that I use run perfectly with the Derringer, only
- much faster. Those programs that offer FPU versions gain the most
- noticeable speed improvement. Some games ill also run in 68030 mode,
- although most of them require the 68000 mode.
-
- Since installing it, my Derringer has been running almost 24 hours a
- day, rendering stuff that would have taken weeks to do on my stock A500.
- The A500 case above the board is only very slightly warm, so heat generation
- is not a big problem.
-
- For the bottom line on speed increase, I rely on AIBB v5.0 to test
- all aspects of processor speed thoroughly. If you are not familiar with
- AIBB, it is a good benchmark program that tests many aspects of Integer,
- Graphics and Floating Point operations. It then averages all the tests in
- each category and provides results that compare the system being tested with
- known standard systems. Higher numbered results = better performance, with
- "1.0" indicating equal performance levels.
-
- AIBB (Version 5.0) Test Results For CSA Derringer 030
- =====================================================
-
- Compared System INTEGER GRAPHICS FPU AVERAGE
- =================== ======= ======== ===== =======
- A500 (No Fast RAM) 6.47 4.07 13.76 810 %
- A2000 (w/Fast RAM) 6.31 2.89 9.20 613 %
- A3000 (25 MHz) 0.99 0.53 0.96 82.7 %
- A4000 (25 MHz) 0.49 0.25 0.33 35.7 %
-
-
- Here are the results from SysInfo, a popular system analysis and
- benchmarking program:
-
- SysInfo V3.01 by Nic Wilson
- ---------------------------
-
- CopyBack Mode.................................. N/A
- Instruction Cache.............................. ON
- Instruction Burst.............................. ON
- Data Cache..................................... ON
- Data Burst..................................... ON
- Central Processing Unit Type................... 68030(OFF)
- Memory Management Unit Type.................... 68030(OFF(OFF)
- Floating PointUnit Type........................ 68882
- Vector Base Register (VBR) Address............. $08CD44A8
- Ramsey Chip Revision (A3000)................... N/A
- Gary Chip Revision (A3000)..................... N/A
- DMAC Chip Type (A3000)......................... N/A
- Agnus Type..................................... ECS 1 MEG
- Display Mode................................... NTSC
- Denise Type.................................... STD 8362
- VBlank Frequency in Hz......................... 60
- Power Supply Frequency in Hz................... 60
- Horizontal Frequency in KHz.................... 15.72
- Card Slot Installed............................ NO
- Total Memory available......................... 17817320
- Free Chip Memory............................... 833776
- Free 16 Bit Fast Memory........................ 8388544
- Free 32 Bit Fast Memory........................ 7139320
- Total Free Memory available.................... 16361640
- Hardware Clock installed....................... FOUND
- EClockFrequency in Hz.......................... 715909
- Fast Ram Speed increase vs Chip Ram............ +57%
-
- SPEED COMPARISONS AGAINST KNOWN MODELS & PERIPHERALS
- A500 512k or A600 with 1MB CHIP ONLY........... 7.25
- B2000, A2000, A1000 or A500 with fast ram...... 6.09
- B2000 GVP A3001 28MHZ ALL CACHES & BURSTS..... 0.71
- A2500 A2620 68020 14MHZ card.................. 2.07
- A3000/25 SCRAM ICACHE IBURST DCACHE NODBURST... 0.92
- A3000 PP&S Mercury ICACHE DCACHE COPYBACK..... 0.21
- CPU Million Instructions per Second............ 4.44
- FPU Million Floating Operations per Second...... 0.71
- Speed of Chip Memory vs A3000 Chip Memory...... 0.56
- Dhrystones per second.......................... 4260
- CPU speed in MHZ............................... 25.00
-
-
- LIKES AND DISLIKES
-
- I like the Derringer board. It is well made, installs easily
- and performs flawlessly. I have no complaints.
-
-
- COMPARISON TO OTHER SIMILAR PRODUCTS
-
- None.
-
-
- BUGS
-
- None
-
-
- SUPPORT
-
- None needed yet; however, when I called the Tech Hotline, helpful
- people were there to answer the phone.
-
-
- WARRANTY
-
- The Derringer is covered for one year against defects in materials
- or workmanship. It covers the original purchaser only.
-
-
- CONCLUSIONS
-
- According to AIBB's results, my A500 now runs at approximately 82%
- the speed of an A3000-25. I would say that this is a very fair estimate of
- the Derringer's effect on an A500 or A2000. I would recommend this board to
- anyone who needs an inexpensive accelerator that gives close to A3000
- performance.
-
- If you have a stock Amiga, then: DON'T HESITATE, ACCELERATE!
-
-
- COPYRIGHT NOTICE
-
- Copyright 1992 Chris Pappe. All rights reserved.
- UUCP Address: Chris_Pappe@EDTNG.Kenosha.WI.US
-
- ---
-
- Daniel Barrett, Moderator, comp.sys.amiga.reviews
- Send reviews to: amiga-reviews-submissions@math.uh.edu
- Request information: amiga-reviews-requests@math.uh.edu
- General discussion: amiga-reviews@math.uh.edu
-