IBM CORPORATION APTIVA M30 (250-0441), APTIVA M31 (250-0441), APTIVA M40 (12-10609), APTIVA M41 (250-0442), APTIVA M50 (250-0440), APTIVA M53 (250-0443), APTIVA M71 (250-0444) Processor CX M1/Pentium Processor Speed 75/100/133MHz Chip Set VLSI Video Chip Set Trident Maximum Onboard Memory 128MB (EDO supported) Maximum Video Memory 2MB Cache 256/512KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VESA feature connector, VGA port, riser slot, cache slots (2), internal VGA connector, power switch connector, wake up on ring connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port CN2 Internal VGA J11 connector Serial port 2 CN3 Power switch J16 connector Serial port 1 CN4 IDE interface LED J17 Parallel port CN5 VESA feature J18 connector VGA port CN6 Speaker JP1 Floppy drive interface CN7 Chassis fan power JP2 IDE interface 2 CN8 Riser slot SL1 IDE interface 1 CN9 Cache slots SL2 & SL3 Wake up on ring J1 connector USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not JP2 Unidentified alter » CMOS memory normal operation JP12 Pins 1 & 2 closed CMOS memory clear JP12 Pins 2 & 3 closed Floppy drive write enabled JP22 Pins 1 & 2 closed Floppy drive write disabled JP22 Pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 24MB (2) 1M x 36 (2) 2M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 1M x 36 (2) 4M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 72MB (2) 1M x 36 (2) 8M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 4M x 36 (2) 8M x 36 128MB (2) 8M x 36 (2) 8M x 36 Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable. CACHE CONFIGURATION Size SL2 SL3 TAG 256KB 256KB module Not installed (1) 32K x 8 installed 512KB 256KB module 256KB module (1) 32K x 8 installed installed Note: The location of the TAG is unidentified. CACHE JUMPER CONFIGURATION Size JP6 None Pins 1 & 3, 2 & 4 closed 256KB Pins 1 & 3, 2 & 4 closed 512KB Pins 3 & 5, 4 & 6 closed VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 1MB 1MB None 2MB 1MB 1MB Note: The location of bank 0 is unidentified. The size of the memory chips are unidentified. CPU SPEED SELECTION CPU Speed JP23 CX M1 3/1 Pins 4 & 6 closed CX M1 2/1 Pins 2 & 4 closed P54 3/2 Open P54 2/1 Pins 2 & 4 closed P54C - Pins 1 & 3 closed P55C - Pins 3 & 5 closed ASM M1 - Open CPU MULTIPLIER SELECTION Multiplier JP25 2x Pins 1 & 2 closed 2.5x Pins 2 & 3 closed CPU TYPE SELECTION Type JP9 CX M1 Pins 2 & 3 closed P54C Pins 1 & 2 closed P55C N/A CPU VOLTAGE SELECTION Voltage JP21 3.3v Pins 2 & 3 closed 5v Pins 1 & 2 closed