ACER, INC. ACERMATE 486 Device Type Mainboard Processor CX486/IBM486/TI486/80486SX/AM486DX/80486DX/AM486DX2/ 80486DX2/AM486DX4/80486DX4/P24T Processor 25/33/50(internal)/66(internal)/100(internal)MHz Speed Chip Set Unidentified Video Chip SetCirrus Logic Maximum 36MB Onboard Memory Maximum Video 2MB Memory Cache 128/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), riser slot, VGA port, VGA feature connector [Image] CONNECTIONS Purpose Location Purpose Location Chassis fan power C1 IDE interface 1 CN7 VGA port CN1 Floppy drive interface CN8 Parallel port CN2 VGA feature connector CN9 Serial port 2 CN3 Daughter board JP44 connector Serial port 1 CN4 Daughter board JP45 connector PS/2 mouse port CN5 Riser slot SL1 IDE interface 2 CN6 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not J1 Unidentified alter » Factory configured - do not J2 Unidentified alter » Factory configured - do not J3 Unidentified alter » Factory configured - do not JP1 Unidentified alter Password enabled JP2 Pins 1 & 2 closed Password disabled JP2 Pins 2 & 3 closed » Factory configured - do not JP4 Unidentified alter On board video enabled JP14 Closed On board video disabled JP14 Open IDE interface enabled JP16 Open IDE interface disabled JP16 Closed On board I/O enabled JP21 Closed On board I/O disabled JP21 Open » Factory configured - do not JP22 Unidentified alter » Factory configured - do not JP29 Unidentified alter Note: The location of JP16 is unidentified. SIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 4MB 4MB None None 5MB 4MB (1) 256K x 36 None 6MB 4MB (1) 256K x 36 (1) 256K x 36 7MB 4MB (1) 256K x 36 (1) 512K x 36 8MB 4MB (1) 1M x 36 None 9MB 4MB (1) 1M x 36 (1) 256K x 36 SIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 Bank 2 10MB 4MB (1) 1M x 36 (1) 512K x 36 12MB 4MB (1) 1M x 36 (1) 1M x 36 16MB 4MB (1) 1M x 36 (1) 2M x 36 20MB 4MB (1) 4M x 36 None 21MB 4MB (1) 4M x 36 (1) 256K x 36 22MB 4MB (1) 4M x 36 (1) 512K x 36 24MB 4MB (1) 4M x 36 (1) 1M x 36 28MB 4MB (1) 4M x 36 (1) 2M x 36 36MB 4MB (1) 4M x 36 (1) 4M x 36 Note: Bank 0 is factory installed and is not configurable. DRAM CONFIGURATION Setting JP28 On board memory enabled Pins 1 & 2 closed On board memory disabled Pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP24 JP25 JP26 128KB Open Closed Pins 1 & 2 closed 256KB Closed Closed Pins 2 & 3 closed VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 Bank 2 512KB 512KB None None 1MB 512KB (4) 256K x 4 None 2MB 512KB (4) 256K x 4 (2) 256K x 16 CPU SPEED SELECTION Speed CN14 JP10 JP17 JP19 25MHz Pins 4 & 8 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed 33MHz Pins 3 & 7 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed 50iMHz Pins 4 & 8 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed 66iMHz Pins 3 & 7 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed 100iMHz Pins 3 & 7 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed CPU TYPE SELECTION Type JP11 JP12 JP13 JP18 JP20 CX486 2 & 3 1 & 2 1 & 2 2 & 3 1 & 2 IBM486 2 & 3 1 & 2 1 & 2 2 & 3 1 & 2 TI486 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 80486SX 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 AM486DX 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 80486DX 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 AM486DX2 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 80486DX2 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 80486DX2 (WB) 1 & 2 2 & 3 1 & 2 1 & 2 2 & 3 AM486DX4 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 80486DX4 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 80486DX4 (WB) 1 & 2 2 & 3 1 & 2 1 & 2 2 & 3 P24T 1 & 2 2 & 3 1 & 2 1 & 2 2 & 3 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON'T) Type JP30 JP31 JP32 JP33 JP34 CX486 Closed Closed Closed 2 & 3 Open IBM486 Closed Closed Closed 2 & 3 Open TI486 Open Open Open 1 & 2 Open 80486SX Open Open Open 1 & 2 Closed AM486DX Open Open Open 1 & 2 Open 80486DX Open Open Open 1 & 2 Closed AM486DX2 Open Open Open 1 & 2 Open 80486DX2 Open Open Open 1 & 2 Closed 80486DX2 Open Open Open 1 & 2 Closed (WB) AM486DX4 Open Open Open 1 & 2 Open 80486DX4 Open Open Open 1 & 2 Closed 80486DX4 Open Open Open 1 & 2 Closed (WB) P24T Open Open Open 1 & 2 Closed Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON'T) Type JP35 JP36 JP39 JP40 JP41 CX486 Open Open 1 & 2, 4 2 & 3 2 & 3 & 5 IBM486 Open Open 1 & 2, 4 2 & 3 2 & 3 & 5 TI486 Open Open 2 & 3, 5 2 & 3 2 & 3 & 6 80486SX Closed Closed 1 & 2, 4 2 & 3 2 & 3 & 5 AM486DX Open Open 1 & 2, 4 1 & 2 1 & 2 & 5 80486DX Closed Closed 1 & 2, 4 2 & 3 2 & 3 & 5 AM486DX2 Open Open 1 & 2, 4 1 & 2 1 & 2 & 5 80486DX2 Closed Closed 1 & 2, 4 2 & 3 2 & 3 & 5 80486DX2 Closed Closed 1 & 2, 4 2 & 3 2 & 3 (WB) & 5 AM486DX4 Open Open 1 & 2, 4 1 & 2 1 & 2 & 5 80486DX4 Closed Closed 1 & 2, 4 2 & 3 2 & 3 & 5 80486DX4 Closed Closed 1 & 2, 4 2 & 3 2 & 3 (WB) & 5 P24T Closed Closed 1 & 2, 4 2 & 3 2 & 3 & 5 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON'T) Type JP42 JP43 JP46 JP47 JP48 CX486 2 & 3 Open 1 & 2 2 & 3 Open IBM486 2 & 3 Open 1 & 2 2 & 3 Open TI486 1 & 2 Open 1 & 2 1 & 2 Open 80486SX 2 & 3 Open 1 & 2 1 & 2 Open AM486DX 2 & 3 Open 1 & 2 1 & 2 Closed 80486DX 2 & 3 Open 1 & 2 1 & 2 Open AM486DX2 2 & 3 Open 1 & 2 1 & 2 Closed 80486DX2 2 & 3 Open 1 & 2 1 & 2 Open 80486DX2 2 & 3 Open 2 & 3 1 & 2 Open (WB) AM486DX 2 & 3 Open 1 & 2 1 & 2 Open 80486DX4 2 & 3 Open 1 & 2 1 & 2 Open 80486DX4 2 & 3 Open 2 & 3 1 & 2 Open (WB) P24T 2 & 3 Open 2 & 3 1 & 2 Open Note: Pins designated should be in the closed position. RESET/RESUME SELECTION Setting JP37 JP38 Reset button Pins 1 & 2 closed Pins 1 & 2 closed Suspend/reset button Pins 2 & 3 closed Pins 2 & 3 closed