UNIDENTIFIED 386DX NON-CACHE MAINBOARD (PQFP) Processor 80386DX Processor Speed 25/33/40MHz Chip Set Unidentified Video Chip Set None Maximum Onboard Memory 64MB (32MB on external memory cards) Maximum Video Memory None Cache None BIOS AMI Dimensions 254mm x 218mm I/O Options External memory cards (2) NPU Options 80387DX/3167 [Image] CONNECTIONS Purpose Location Purpose Location External battery JP2 Turbo switch JP10 Speaker JP7 Turbo LED JP11 Power LED & keylock JP8 External memory card SL1 & SL2 Reset switch JP9 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP3 Pins 1 & 2 closed CMOS memory clear JP3 Pins 2 & 3 closed Monitor type select color JP6 Closed Monitor type select monochrome JP6 Open DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 None 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 None 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 None 20MB (4) 1M x 9 (4) 4M x 9 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 Note: The location of banks 0 & 1 are unidentified. To increase memory beyond 32MB, install external memory card(s).