40/4 Magnum Company Computer System Associates, USA   Date 1991   Amiga A2000   Interface CPU slot   Autoconfig ID 1058 / 17 processor 68040 @ 25 / 33 MHz memory four 72 pin SIMM sockets accept 64 MB RAM supports 4 or 16 MB SIMMs (1M×32 resp. 4M×32) SIMM sizes can be mixed 1 MB burstable static RAM, soldered to the board 32 bit feature connector for extra memory board adding up to 128 MB RAM supports normal, page and burst modes Fast SCSI 2 controller NCR 53C710 controller IC 50 pin internal header DB25 external connector socketed resistors for SCSI termination LED bank indicate SCSI bus activity supported by NetBSD and OpenBSD I/O one DB25 RS422 compatible parallel port - plus one optional one DB9 RS232 compatible serial port - plus two optional notes LED bank indicate system bus activity programmable EPROM 68000 fallback mode, selectable by jumper or software pressing left mouse button during startup disables autoboot Autoboot disable switch at slot cover the board's autoconfiguration can be disabled by jumper Manual 40_4_Magnum.pdf (146 kB) user manual   Software 40_4_Magnum.dms (311 kB) install disk csascsi.device v38.76 (8 Sep 1992), csaser.device v1.52 (8 Jan 1992), csaprint.device v1.0 (28 May 92)