AMERICAN MEGATRENDS, INC. 80386 25/33 AT MARK II Processor 80386DX Processor Speed 25/33MHz Chip Set C & T Max. Onboard DRAM 20MB Cache 64KB BIOS AMI Dimensions 355mm x 304mm I/O Options 32-bit external memory card slot NPU Options 80387/3167 [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED J1 Power LED & keylock J8 Reset switch J2 External battery J9 Speaker J7 32-bit external memory S1 card USER CONFIGURABLE SETTINGS Function Switch Position » Factory configured - do not SW1/1 Off alter » Monitor type select monochrome SW1/2 Off Monitor type select color SW1/2 On Note: Cache is factory installed and is not configurable. The size and location of cache and tag are unidentified. DRAM CONFIGURATION Size Bank 1 Bank 2 1MB (36) 41256 NONE 1MB NONE (4) 256K x 9 2MB (36) 41256 (4) 256K x 9 4MB (36) 411000 NONE 4MB NONE (4) 1M x 9 5MB (36) 41256 (4) 1M x 9 5MB (36) 411000 (4) 256K x 9 8MB (36) 411000 (4) 1M x 9 16MB NONE (4) 4M x 9 17MB (36) 41256 (4) 4M x 9 20MB (36) 411000 (4) 4M x 9 Note: There were two versions of this board made, one that had 1MB of DIPP DRAM installed and one that had 4MB of DIPP DRAM installed. The 1MB version could be upgraded by the factory to support 4MB of DIPP DRAM. DRAM JUMPER CONFIGURATION Size J26 J27 1MB Open pins 1 & 2 and 3 & 4 closed 1MB Open pins 2 & 3 and 4 & 5 closed 2MB Open pins 1 & 2 and 3 & 4 closed 4MB Open pins 1 & 2 and 3 & 4 closed 4MB Open pins 2 & 3 and 4 & 5 closed 5MB Open pins 1 & 2 and 3 & 4 closed 5MB Open pins 2 & 3 and 4 & 5 closed 8MB Open pins 2 & 3 and 4 & 5 closed 16MB pins 1 & 2 closed pins 2 & 3 and 4 & 5 closed 17MB pins 1 & 2 closed pins 1 & 2 and 3 & 4 closed 20MB pins 1 & 2 closed pins 1 & 2 and 3 & 4 closed