ACER, INC. ACERALTOS 900 PRO (M11A), M11A Device Type Mainboard Processor Pentium Pro Processor Speed 180/200MHz Chip Set Unidentified Maximum Onboard Memory 384MB (EDO supported) Cache 256/512KB (located on Pentium Pro CPU) Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), SCSI interface, Wide Ultra SCSI interface, parallel port, PS/2 mouse port, serial ports (2), VRM connector [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Power LED & keylock CN16 Serial port 2 CN2 Reset switch/RDM CN17 cable connector Parallel port CN3 IDE interface LED CN18 Floppy drive CN5 CPU fan power FA1 interface IDE interface 1 CN6 VRM connector J7 IDE interface 2 CN7 Wide SCSI interface J8 RDM connector CN8 SCSI interface J12 RDM connector CN9 PS/2 mouse port MS1 Speaker CN15 32-bit PCI slots PC1 - PC4 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not CN10 Unidentified alter » Factory configured - do not CN11 Unidentified alter » Factory configured - do not CN12 Unidentified alter » Factory configured - do not CNN1 Unidentified alter » Factory configured - do not FA2 Unidentified alter » Factory configured - do not FA3 Unidentified alter » Factory configured - do not FA4 Unidentified alter » BIOS type select Acer J4 Pins 1 & 2 closed BIOS type select OEM J4 Pins 2 & 3 closed » Password enabled J5 Pins 1 & 2 closed Password disabled J5 Pins 2 & 3 closed » SCSI type select wide J6 Closed SCSI type select narrow J6 Open » Buzzer enabled J13 Pins 1 & 2 closed External speaker enabled J13 Pins 2 & 3 closed » Reset switch enabled JMP1 Pins 1 & 2 closed Reset switch disabled, Green JMP1 Pins 2 & 3 closed PC enabled SIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 8MB (2) 1M x 36 None None 16MB (2) 1M x 36 (2) 1M x 36 None 16MB (2) 2M x 36 None None 24MB (2) 2M x 36 (2) 1M x 36 None 24MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 32MB (2) 4M x 36 None None 32MB (2) 2M x 36 (2) 2M x 36 None 40MB (2) 4M x 36 (2) 1M x 36 None SIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 Bank 2 48MB (2) 4M x 36 (2) 2M x 36 None 48MB (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 56MB (2) 4M x 36 (2) 2M x 36 (2) 1M x 36 64MB (2) 8M x 36 None None 64MB (2) 4M x 36 (2) 4M x 36 None 80MB (2) 8M x 36 (2) 2M x 36 None 80MB (2) 8M x 36 (2) 1M x 36 (2) 1M x 36 88MB (2) 8M x 36 (2) 2M x 36 (2) 1M x 36 96MB (2) 8M x 36 (2) 4M x 36 None 96MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 96MB (2) 8M x 36 (2) 2M x 36 (2) 2M x 36 104MB (2) 8M x 36 (2) 4M x 36 (2) 1M x 36 112MB (2) 8M x 36 (2) 4M x 36 (2) 2M x 36 128MB (2) 8M x 36 (2) 4M x 36 (2) 4M x 36 128MB (2) 16M x 36 None None 128MB (2) 8M x 36 (2) 8M x 36 None 136MB (2) 8M x 36 (2) 8M x 36 (2) 1M x 36 136MB (2) 16M x 36 (2) 1M x 36 None 144MB (2) 16M x 36 (2) 2M x 36 None 144MB (2) 16M x 36 (2) 1M x 36 (2) 1M x 36 152MB (2) 16M x 36 (2) 2M x 36 (2) 1M x 36 160MB (2) 16M x 36 (2) 4M x 36 None 160MB (2) 16M x 36 (2) 2M x 36 (2) 2M x 36 168MB (2) 16M x 36 (2) 4M x 36 (2) 1M x 36 176MB (2) 16M x 36 (2) 4M x 36 (2) 2M x 36 192MB (2) 16M x 36 (2) 8M x 36 None 192MB (2) 16M x 36 (2) 4M x 36 (2) 4M x 36 200MB (2) 16M x 36 (2) 8M x 36 (2) 1M x 36 208MB (2) 16M x 36 (2) 8M x 36 (2) 2M x 36 224MB (2) 16M x 36 (2) 8M x 36 (2) 4M x 36 256MB (2) 16M x 36 (2) 16M x 36 None 256MB (2) 16M x 36 (2) 8M x 36 (2) 8M x 36 264MB (2) 16M x 36 (2) 16M x 36 (2) 1M x 36 272MB (2) 16M x 36 (2) 16M x 36 (2) 2M x 36 288MB (2) 16M x 36 (2) 16M x 36 (2) 4M x 36 320MB (2) 16M x 36 (2) 16M x 36 (2) 8M x 36 384MB (2) 16M x 36 (2) 16M x 36 (2) 16M x 36 Note: Board accepts EDO memory. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium Pro CPU. CPU SPEED SELECTION (PENTIUM 5 COLUMNS) CPU Clock Multiplier CN13/ CN13/ CN13/ CN13/ J9 speed speed pins pins pins pins 1 & 5 2 & 6 3 & 7 4 & 8 180MHz 60MHz 3x Closed Closed Open Closed 1 & 2 200MHz 66MHz 3x Closed Closed Open Closed 2 & 3 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage CN14/pins 1 CN14/pins 2 CN14/pins 3 CN14/pins 4 & & 5 & 6 & 7 8 2.1v Open Open Open Closed 2.2v Open Open Closed Open 2.3v Open Open Closed Closed 2.4v Open Closed Open Open 2.5v Open Closed Open Closed 2.6v Open Closed Closed Open 2.7v Open Closed Closed Closed 2.8v Closed Open Open Open 2.9v Closed Open Open Closed 3.0v Closed Open Closed Open 3.1v Closed Open Closed Closed 3.2v Closed Closed Open Open » 3.3v Closed Closed Open Closed 3.4v Closed Closed Closed Open 3.5v Closed Closed Closed Closed SCSI TERMINATON SELECTION Setting J10 Termination disabled Open Termination enabled Pins 1 & 2 closed » Termination switchable through Pins 2 & 3 closed SCSI select utility