G-Force 030 (Impact A2000-030 Combo Series II)
Manufacturer
Great Valley Products, USA
Date
1992
Amiga
A2000
Interface
CPU slot
Autoconfig ID
2017 / 11
    processor
  • 68EC030 @ 25 / 40 MHz or 68030 @ 50 MHz, PGA
  • 68882 @ 25 / 40 / 50 MHz, PGA - clocked at the same speed as the 68030
    memory
  • 25 MHz: 1 MB on board + three SIMM sockets gives 13 MB max
  • 40 / 50 MHz: 4 MB on board + three SIMM sockets gives 16 MB max
  • supports only special 64 pin 1 or 4 MB 60 ns GVP SIMMs
  • maximum 8 MB is autoconfigured in the 16 MB address space, the exact amount is set by jumper
  • the remaining memory is configured as extended memory by the FaaastROM driver
    Impact Series II SCSI controller
  • 1.2 MB/s transfer speed
  • direct DMA transfer to onboard Fast RAM
  • FaaastROM SCSI driver (gvpscsi.device) - auto booting requires at least Kickstart 1.3
  • DB25 external connector
  • 50 pin internal header
  • supported by Linux and NetBSD
  • optional hard disk mounting kit allows installing any 1" drive on the back of the card
    notes
  • 32 bit expansion bus for the EGS 110/24 graphics board
  • if the EGS 110/24 is installed no place remains for the hard disk mounting kit
  • 68000 fallback mode switchable either by software or jumper
  • in 68000 fallback mode RAM and SCSI is also switched off
  • Kickstart remapping
    jumper settings
  • rev 3
    J5
    ON
    OFF
    ON    		J6
    OFF
    ON
    ON    		J11
    OFF
    ON
    OFF    		CN8
    2-3
    OFF
    1-2    		- board type
    - 25 MHz
    - 40 MHz
    - 50 MHz
    J2 -68000 fallback mode: OFF - enable
    J3 -MMU: ON - disable
    J9 -autoboot ROM: OFF - disable
    J12 -bank 1-2 memory address: ON - Zorro II address space, OFF - 0x01000000
    J14 -SCSI drive: OFF - connected
    CN6 -HDD LED
    CN16 -FPU clock: 2-3 - uses CPU clock
    J4
    ON    		J7, J8, J10, J13, J15
    OFF    		CN7, CN15
    1-2    		CN14
    2-3
    - reserved
  • rev 4 (additional jumpers to rev 3)
    J16 -DTACK pull-up for old A2000s: ON - enable
    CN15 -autoboot ROM version: 1-2 - v4.5; 2-3 - before v4.5
    CN17
    2-3
    1-2-3    		 
    - 25 MHz, 50 MHz
    - 40 MHz
Photos
Great Valley Products G-Force 030 (Impact A2000-030 Combo Series II) - Rev 3 front side
Rev 3, front side
Great Valley Products G-Force 030 (Impact A2000-030 Combo Series II) - Rev 3 front side
Rev 3, front side
Great Valley Products G-Force 030 (Impact A2000-030 Combo Series II) - Rev 3 back side
Rev 3, back side
Great Valley Products G-Force 030 (Impact A2000-030 Combo Series II) - Rev 4 front side
Rev 4, front side
Great Valley Products G-Force 030 (Impact A2000-030 Combo Series II) - Rev 4 front side
Rev 4, front side
Great Valley Products G-Force 030 (Impact A2000-030 Combo Series II) - Rev 4 back side
Rev 4, back side
Driver / Installation Disk
Vintage Advert

Advert (DE)
1991-06

Advert (DE)
1992-10

Advert (DE)
1993-02

Advert (US)
1998-05

Advert (US)
1992-02

Advert (US)
1992-03

Advert (FR)
1992-05

Advert (US)
1992-09

Advert (US)
1993-06

Advert (US)
1993-11
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