LASER COMPUTER, INC. LASER 386M Processor 80386SX Processor Speed 25/33MHz Chip Set Unidentified Max. Onboard DRAM 12MB Cache Unidentified BIOS Unidentified Dimensions 330mm x 218mm I/O Options None NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location External battery J22 Turbo switch J26 Reset switch J24 Speaker J28 Power LED & keylock J25 External memory card S1 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » EPROM chip type select 27128 J13 pins 2 & 3 or 2764 closed EPROM chip type select 27256 J13 pins 1 & 2 closed » SYSCLK enabled J30 pins 2 & 3 closed SYSCLK disabled J30 pins 1 & 2 closed » Battery type select internal J31 pins 1 & 2 closed Battery type select external J31 pins 2 & 3 closed » EGA BIOS access select on SW2/1 On board EGA BIOS access select SW2/1 Off adapter card » Memory type select 513KB to SW2/2 On 640KB expansion bus enabled Memory type select expansion SW2/2 Off bus disabled » NPU disabled SW2/3 On NPU enabled SW2/3 Off » Clock frequency speed select SW2/4 Off 25/33Mhz Clock frequency speed select SW2/4 On 8Mhz » Monitor type select SW2/5 Off monochrome Monitor type select color SW2/5 On CACHE CONFIGURATION Setting J27 Enabled pins 2 & 3 closed Disabled pins 1 & 2 closed Note: The size and location of the cache is unidentified. [Image] DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 NONE NONE 2MB (4) 256K x 9 (4) 256K x 9 NONE 3MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE NONE 5MB (4) 256K x 9 (4) 1M x 9 NONE 6MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 NONE 9MB (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 DRAM SWITCH CONFIGURATION Size SW1/1 SW1/2 SW1/3 SW1/4 1MB On Off On On 2MB Off On On On 3MB Off Off On On 4MB On Off On Off 5MB Off On Off On 6MB Off Off Off Off 8MB Off On On Off 9MB Off Off Off On 12MB Off Off On Off MEMORY RELOCATION CONFIGURATION Setting SW2/5 Enabled On Disabled Off TECHNICAL NOTE Note: The location of pin 1 is unidentified.