Rev 4 Accelerator
Rev 7 Accelerator
Rev 3 RAM32
Rev 3 RAM8
Hi Res Version, Rev 3 RAM32
- 2541 x 909, 623K
Hi Res Version, Rev 3 RAM8
- 2592 x 993, 651K
Download Advert 1
- 882 x 1111, 167K
Download Advert 2
- 882 x 1115, 156K

 

Processor: 030@25MHz, 030@28MHz, 030@33MHz or 030@50MHz
FPU: 68882 (PGA) at the same speed as the processor (optional seperate clock).
MMU: Internal
Max Ram: 8MB (with RAM8 or RAM32 fitted), 20MB/32MB on 50MHz RAM32
Ram Type:

30pin 1MBx8 nibble-mode with RAM8 <50Mhz (70ns/80ns), and 60ns page mode for 50Mhz
GVP 64pin SIMM32 with RAM32 (1MB/4MB depending on speed)

An accelerator for the A2000 which plugs into the CPU Fast Slot. This was the first 68030 card that GVP released for the A2000. It consists of two boards which are connected together, one containing the accelerator components of the 68030 CPU, FPU, and a hard disk interface (3.5" AT/IDE).  The second PCB contains the RAM. The CPU card can also take the special UNIX Boot ROMs as found on the Commodore A2620 or A2630 to support the alternative Commodore operating system Amix (if installed previously), or use them to boot into 68000 mode (Rev 7/8).

Two types of RAM cards were made. The original, called the RAM8, can support 4MB and 8MB of AutoConfig memory.  It contains 8 x 30pin SIMM slots, and uses a specific nibble-mode 30-pin SIMMs type, 4x/bank.  The modules were popular on the 68030 Mac and other 68030 platforms, and complement the burst-mode of the 68030.  The 50Mhz version is an exception on the memory type, which uses only page-mode RAM.  The RAM8 memory design uses 80ns for 25/28MHz, 70ns for 33MHz, and 60ns for 50Mhz

The later model, called the RAM32, supports several memory configurations depending on the speed configuration of the board.  It contains 8 x GVP SIMM32 slots, which are a custom 64pin 32-bit module.  They are not compatible with the various other 64pin and 72 pin SIMM formats of the era.  The RAM32 board supports 2MB, 4MB, and 8MB AutoConfig setting with 2x, 4x, and 8x of the 1MB SIMM32s for all speeds <50MHz.  The RAM32 board, in two configurations for the 50MHz speed, supports either:

- 2MB, 4MB, 8MB AutoConfig with 1MB SIMM32s in the top memory slots, or uses 1x-4x of the 4MB SIMM32's in the lower 4 slots, software-mapped by the AT 3.x driver ROM (for a 4MB AutoConfig/16MB software mapped configuration).
- 4MB AutoConfig (top slot populated), & the remaining 7 SIMM32 sockets use 4MB SIMM32s for 28MB software-mapped >16MB by the AT 3.x ROM, OR, 4MB-32MB is mapped by the ROM (contiguous).

All GVP SIMM32 RAM is 60ns.  The A3001-A3050 series products did not use the 16MB version of the SIMM32.

68030 PCB Revisions:
Rev 4 - original, normally mated with the RAM8, hardware 68000 mode (disables accelerator card)
Rev 7 - Single ROM socket for the AT 3.x ROM, jumper for upper/lower ROM image select and AT interface not in use.
Rev 8 - FCC revisions.

The AT/IDE interface was designed before the AT/IDE spec finalized, and the timing was off when the spec was completed. A few drives were compatible with the earlier spec, but none of today's are compatible.  The known drives to work included: Quantum 40/80AT, Seagate 157AT, Conner 2040/2080AT, Maxtor MXT200A (but not the MXT213A).  The AT/IDE interface is not available in 68000 mode.

Page contributors: Francisco Rabay Jr, NicDouille, RiWa & Friends, Robert Miranda (GVP Tech Support)
Updated: 5/3/2019 . Added: 12/22/2004