OLIVETTI M6-420/440/450/460/ (BA200X) Processor 80486SX/80487SX/80486DX/80486DX2/P24T Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set Unidentified Maximum Onboard 100MB Memory Cache 256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, cache slot, riser slot, audio board connector NPU Options None [Image] CONNECTIONS Function Label Function Label PS/2 mouse port CN1 Floppy drive interface CN9 Parallel port CN2 Chassis fan power J1 Serial port 1 CN3 Speaker J2 Serial port 2 CN4 External battery J3 VGA port CN5 Reset switch JP7 VGA feature connector CN6 Cache slot SL1 Audio board connector CN7 Riser slot SL2 IDE interface CN8 Note: The location of pin 1 on the connectors is unidentified. USER CONFIGURABLE SETTINGS Setting Label Position » CMOS memory normal operation JP6 Open CMOS memory clear JP6 Pins 2 & 3 closed System normal operation JP7 Open System reset JP7 Closed » 87311/12 address select 398 - 399 SW1/1 Off 87311/12 address select 26E - 26F SW1/1 On » Setup access enabled SW1/2 Off Setup access disabled SW1/2 On » Bootstrap from serial port SW1/3 Off enabled Bootstrap from serial port SW1/3 On disabled » Flash BIOS write disabled SW1/4 Off Flash BIOS write enabled SW1/4 On » Floppy drive write enabled SW1/5 Off Floppy drive write disabled SW1/5 On » RAMDAC write enabled SW1/6 Off RAMDAC write disabled SW1/6 On On board video enabled SW1/7 Off On board video disabled SW1/7 On Note: The location of pin 1 on SW1 is unidentified. DRAM Size Bank 0 Bank 1 Bank 2 Bank 3 4MB 4MB None None None 8MB 4MB (1) 1M x 36 None None 12MB 4MB (1) 2M x 36 None None 12MB 4MB (1) 1M x 36 (1) 1M x 36 None 16MB 4MB (1) 2M x 36 (1) 1M x 36 None 16MB 4MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB 4MB (1) 1M x 36 (1) 2M x 36 None 20MB 4MB (1) 4M x 36 None None 20MB 4MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 DRAM (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 20MB 4MB (1) 2M x 36 (1) 2M x 36 None 24MB 4MB (1) 4M x 36 (1) 1M x 36 None 24MB 4MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 24MB 4MB (1) 1M x 36 (1) 4M x 36 None 28MB 4MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 28MB 4MB (1) 4M x 36 (1) 2M x 36 None 28MB 4MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 28MB 4MB (1) 2M x 36 (1) 4M x 36 None 36MB 4MB (1) 8M x 36 None None 36MB 4MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 36MB 4MB (1) 4M x 36 (1) 4M x 36 None 40MB 4MB (1) 8M x 36 (1) 1M x 36 None 40MB 4MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB 4MB (1) 1M x 36 (1) 8M x 36 None 44MB 4MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 44MB 4MB (1) 8M x 36 (1) 2M x 36 None 44MB 4MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 44MB 4MB (1) 2M x 36 (1) 8M x 36 None 52MB 4MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 52MB 4MB (1) 8M x 36 (1) 4M x 36 None 52MB 4MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 52MB 4MB (1) 4M x 36 (1) 8M x 36 None 70MB 4MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 70MB 4MB (1) 8M x 36 (1) 8M x 36 None 72MB 4MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 76MB 4MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 84MB 4MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 100MB 4MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 Note: Bank 0 is factory installed and is not configurable. CACHE SIZE Size SL1 256KB Installed CPU SPEED Setting SW1/8 25MHz Off 33MHz On 50iMHz Off 66iMHz On DMA CHANNEL Setting JP9 JP10 JP11 JP12 DMA0 Pins 1 & 2 N/A Pins 1 & 2 N/A closed closed DMA1 N/A Pins 1 & 2 N/A Pins 1 & 2 closed closed DMA5 Pins 2 & 3 N/A Pins 2 & 3 N/A closed closed VIDEO MEMORY Size Bank 0 None None 1MB (4) 256K x 8