ACER, INC. ACERALTOS 9100B Device Type Mainboard Processor Pentium II Processor Speed 350/400MHz Chip Set Intel 440BX Video Chip Set Unidentified Maximum Onboard Memory 512MB (EDO supported) Maximum Video Memory 2MB Cache 256/512KB (located on Pentium II CPU) BIOS Acer Dimensions 305mm x 244mm I/O Options 32-bit PCI slots (5), Ethernet 10BaseT connector, floppy drive interface, IDE interface, SCSI interface, Wide Ultra SCSI interface, PS/2 mouse port, serial ports (2), VGA port, USB connectors (2), ATX power connector, CPU slot [Image] CONNECTIONS Purpose Location Purpose Location ATX power connector ATX VGA port CN14A Chassis fan power C1 IDE interface CN15 Chassis fan power C2 Ethernet 10BaseT CN16 connector Chassis fan power C3 SCSI interface CN17 Serial port 1 CN1 Floppy drive CN18 interface Serial port 2 CN2 USB connector 1 CN19 PS/2 mouse port CN4 USB connector 2 CN19A Software shutdown CN5 External SCSI CN22 for 420 power interface RDM connector CN6 IDE interface LED CN23 RDM connector CN7 SMM connector CN24 Soft off power CN8 External SCSI CN25 supply interface Software shutdown CN9 Chassis intrusion CNN1 for 200 power connector Power LED & keylock CN10 32-bit PCI slots PC1 - PC5 Redundant power CN11 CPU slot SL2 supply connector NMI signal CN12 3.3v power U1 connector LED connector CN13 3.3v power U5 Parallel port CN14 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not alter JP1 Pins 1 & 2 closed » Factory configured - do not alter JP2 Pins 1 & 2 closed » Password disabled JP3 Pins 2 & 3 closed Password enabled JP3 Pins 1 & 2 closed » 5v standby enabled JP4 Pins 1 & 2 closed 5v standby disabled JP4 Pins 2 & 3 closed » On board video enabled JP7 Pins 1 & 2 closed On board video disabled JP7 Pins 2 & 3 closed VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 1MB (2) 256K x 16 None 2MB (2) 256K x 16 (2) 256K x 16 SCSI TERMINATON SELECTION Setting JP6 Termination enabled Pins 1 & 2 closed » Termination switchable through Pins 2 & 3 closed SCSI select utility [Image] CONNECTIONS Purpose Location Purpose Location CPU2 fan power CN1 CPU1 fan power CN3 Thermal detection CN2 Thermal detection CN4 connector 2 connector 1 DIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (1) 1M x 64 None None None 16MB (1) 2M x 64 None None None 16MB (1) 1M x 64 (1) 1M x 64 None None 24MB (1) 2M x 64 (1) 1M x 64 None None 24MB (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 None 32MB (1) 4M x 64 None None None 32MB (1) 2M x 64 (1) 2M x 64 None None 32MB (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 40MB (1) 4M x 64 (1) 1M x 64 None None 48MB (1) 4M x 64 (1) 2M x 64 None None 48MB (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 None 64MB (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 64MB (1) 8M x 64 None None None 64MB (1) 4M x 64 (1) 4M x 64 None None 72MB (1) 8M x 64 (1) 1M x 64 None None 80MB (1) 8M x 64 (1) 2M x 64 None None 96MB (1) 8M x 64 (1) 4M x 64 None None 96MB (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 None DIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 Bank 2 Bank 3 128MB (1) 16M x None None None 64 128MB (1) 8M x 64 (1) 8M x 64 None None 128MB (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 136MB (1) 16M x (1) 1M x 64 None None 64 144MB (1) 16M x (1) 2M x 64 None None 64 176MB (1) 16M x (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 64 192MB (1) 16M x (1) 8M x 64 None None 64 192MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 None 256MB (1) 16M x (1) 16M x None None 64 64 256MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 272MB (1) 16M x (1) 16M x (1) 1M x 64 (1) 1M x 64 64 64 288MB (1) 16M x (1) 16M x (1) 2M x 64 (1) 2M x 64 64 64 320MB (1) 16M x (1) 16M x (1) 4M x 64 (1) 4M x 64 64 64 384MB (1) 16M x (1) 16M x (1) 16M x None 64 64 64 512MB (1) 16M x (1) 16M x (1) 16M x (1) 16M x 64 64 64 64 Note: Board accepts EDO memory. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium II CPU. CPU SPEED SELECTION CPU Clock Multiplier JP1A JP1B JP1C JP1D speed speed 350MHz 100MHz 3.5x 1 & 2 2 & 3 2 & 3 1 & 2 400MHz 100MHz 4x 1 & 2 1 & 2 1 & 2 2 & 3 Note: Pins designated should be in the closed position.