IBM CORPORATION PS/2 MODEL 80 (8580-041, 071) Processor 80386DX Processor Speed 16/20/25MHz Chip Set None Max. Onboard DRAM 8MB Cache None BIOS IBM Dimensions 355mm x 254mm I/O Options Serial port, parallel port, pointing device connector, video port, video adapter slot, floppy drive interface NPU Options 80387 [Image] CONNECTIONS Purpose Location Purpose Location Power supply J1 Serial port J6 Floppy drive interface J2 Parallel port J7 Battery/speaker J3 Pointing device J8 Video adapter slot J4 Keyboard J9 Video port J5 DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (1) 256K x 36 NONE 2MB (1) 256K x 36 (1) 256K x 36 4MB (1) 1M x 36 NONE 8MB (1) 1M x 36 (1) 1M x 36 Note:Onboard memory does not have to be installed in order to use memory expansion cards.