IBM CORPORATION APTIVA 2153 SL-A Device Type Mainboard Processor AM K6-2/AM K6S Processor Speed 300/350MHz Chip Set Unidentified Video Chip Set ATI Maximum Onboard Memory 256MB (SDRAM supported) Maximum Video Memory 4MB Cache 512KB BIOS Unidentified Dimensions 254mm x 218mm I/O Options 32-bit PCI slot, floppy drive interface, game/MIDI port, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, USB connectors (2), ATX power connector, line in, line out, microphone in, audio in – CD-ROM [Image] CONNECTIONS Purpose Location Purpose Location ATX power ATX Serial port 1 CN8 connector USB connector 1 CN1 Wake on modem CN9 connector USB connector 2 CN1A IDE interface 2 CN10 Power LED CN2/pins 1 – IDE interface 1 CN11 3 IDE interface LED CN2/pins 4 – Floppy drive CN12 7 interface Reset switch CN2/pins 8 & Game/MIDI port CN13 9 Soft off power CN2/pins 10 & Line in CN13B supply 20 Turbo LED CN2/pins 11 – Line out CN13C 13 IR connector CN2/pins 14 - Microphone in CN13A 19 PS/2 mouse port CN3 Modem connector CN14 AMC connector CN5 Audio in – CD-ROM CN15 Parallel port CN6 CPU fan power FN1 VGA port CN6A 32-bit PCI slot PC1 Serial port 2 CN6B USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not C1 Unidentified alter » Factory configured - do not C2 Unidentified alter » Factory configured - do not C3 Unidentified alter » Factory configured - do not C4 Unidentified alter » Factory configured - do not C5 Unidentified alter » Factory configured - do not FN2 Unidentified alter » VGA IRQ disabled JP1 Pins 1 & 2 closed VGA IRQ enabled JP1 Pins 2 & 3 closed » Hardware monitor disabled SW1/1 Off Hardware monitor enabled SW1/1 On » Password disabled SW3/2 Off Password enabled SW3/2 On DIMM CONFIGURATION Size Bank 0 Bank 1 8MB (1) 1M x 64 None 16MB (1) 2M x 64 None 16MB (1) 1M x 64 (1) 1M x 64 24MB (1) 2M x 64 (1) 1M x 64 32MB (1) 4M x 64 None 32MB (1) 2M x 64 (1) 2M x 64 40MB (1) 4M x 64 (1) 1M x 64 48MB (1) 4M x 64 (1) 2M x 64 64MB (1) 8M x 64 None 64MB (1) 4M x 64 (1) 4M x 64 72MB (1) 8M x 64 (1) 1M x 64 80MB (1) 8M x 64 (1) 2M x 64 96MB (1) 8M x 64 (1) 4M x 64 128MB (1) 16M x 64 None 128MB (1) 8M x 64 (1) 8M x 64 136MB (1) 16M x 64 (1) 1M x 64 144MB (1) 16M x 64 (1) 2M x 64 160MB (1) 16M x 64 (1) 4M x 64 192MB (1) 16M x 64 (1) 8M x 64 256MB (1) 16M x 64 (1) 16M x 64 Note: Board accepts SDRAM memory. CACHE CONFIGURATION Note: 512KB cache is factory installed and is not configurable. The location is unidentified. VIDEO MEMORY CONFIGURATION Note: 2/4MB video memory is factory installed and is not configurable. The location is unidentified. CPU SPEED SELECTION (AM K6-2) CPU Clock Multiplier JPX1 SW1/2 SW1/3 SW1/4 SW2/1 speed speed 266MHz 66MHz 4x 2 & Off On Off On 3 300MHz 66MHz 4.5x 2 & Off On Off On 3 300MHz 100MHz 3x 2 & On Off Off Off 3 350MHz 100MHz 3.5x 2 & On Off Off Off 3 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (AM K6-2, CON’T) CPU Clock Multiplier SW2/2 SW2/3 SW3/1 SW3/3 SW3/4 speed speed 266MHz 66MHz 4x Off On On Off Off 300MHz 66MHz 4.5x On On On Off Off 300MHz 100MHz 3x On Off On On On 350MHz 100MHz 3.5x Off Off On On On CPU SPEED SELECTION (AM K6-S) CPU Clock Multiplier JPX1 SW1/2 SW1/3 SW1/4 SW2/1 speed speed 300MHz 66MHz 4.5x 1 & Off On Off On 2 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (AM K6-S, CON’T) CPU Clock Multiplier SW2/2 SW2/3 SW3/1 SW3/3 SW3/4 speed speed 300MHz 66MHz 4.5x On Off On Off Off CPU VOLTAGE SELECTION Voltage SW2/4 SW2/5 SW2/6 SW2/7 SW2/8 2.2v Off Off Off On Off 2.3v Off Off Off On On 2.8v Off On Off Off Off 2.9v Off On Off Off On 3.2v Off On On Off Off 3.3v Off On On Off On