ACER, INC. ACERMATE 486/G (A1GX-2) Device Mainboard Type Processor 80486/80486(WB)/CX486DX2/IBM486DX2/TI486DX2/ (SL)AM486DX2(SV8T)/(SL)AM486DX2(SV8B)/P24C/P24D/AMDNV8T/ AMDNV8B/CX486DX4/IBM486DX4/(SL)AM486DX4(SV8T)/ (SL)AM486DX4(SV8B)/P24T/CX 5X86/IBM 5X86 Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set ALI M1429 Video Chip Cirrus Logic Set Maximum 36MB Onboard Memory Maximum 2MB Video Memory Cache None BIOS Unidentified Dimensions 285mm x 220mm I/O Ethernet 10BaseT connector, floppy drive interface, IDE Options interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot [Image] CONNECTIONS Purpose Location Purpose Location Chassis fan power C1 Ethernet 10BaseT CN6 connector Feature connector C2 Floppy drive CN7 interface VGA port CN1 IDE interface 2 CN8 Parallel port CN2 IDE interface 1 CN9 Serial port 2 CN3 VGA feature connector CN10 Serial port 1 CN4 Riser slot SL1 PS/2 mouse port CN5 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not CN11 Unidentified alter » Factory configured - do not J1 Unidentified alter » Factory configured - do not J2 Unidentified alter » Factory configured - do not J3 Unidentified alter BIOS type select Acer JP1 Pins 2 & 3 closed BIOS type select OEM JP1 Pins 1 & 2 closed Password disabled JP2 Pins 2 & 3 closed Password enabled JP2 Pins 1 & 2 closed Normal boot enabled JP3 Pins 2 & 3 closed COM1 boot enabled JP3 Pins 1 & 2 closed » Factory configured - do not JP4 Unidentified alter On board I/O enabled JP6 Pins 2 & 3 closed On board I/O disabled JP6 Pins 1 & 2 closed On board video enabled JP9 Pins 2 & 3 closed On board video disabled JP9 Pins 1 & 2 closed IDE address select 074H, 078H, JP10 Pins 2 & 3 closed 07CH IDE address select 0F4H, 0F8H, JP10 Pins 1 & 2 closed 0FCH » Factory configured - do not JP13 Unidentified alter Reset button enabled JP28 Pins 2 & 3 closed Reset/green PC button enabled JP28 Pins 1 & 2 closed IDE interface enabled JP29 Pins 2 & 3 closed IDE interface disabled JP29 Pins 1 & 2 closed Feature connector enabled JP33 Pins 1 & 2 closed I2C interface enabled JP33 Pins 2 & 3 closed IDE LED enabled JP35 Open IDE, FDD, CD-ROM LED enabled JP35 Closed BIOS type select EPROM JPX1 Pins 2 & 3 closed BIOS type select flash JPX1 Pins 1 & 2 closed SIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 4MB 4MB None None 4MB None (1) 1M x 36 None 8MB 4MB (1) 1M x 36 None 8MB None (1) 2M x 36 None 8MB None (1) 1M x 36 (1) 1M x 36 12MB 4MB (1) 2M x 36 None 12MB 4MB (1) 1M x 36 (1) 1M x 36 12MB None (1) 1M x 36 (1) 2M x 36 16MB 4MB (1) 2M x 36 (1) 1M x 36 16MB None (1) 4M x 36 None 16MB None (1) 2M x 36 (1) 2M x 36 20MB 4MB (1) 4M x 36 None 20MB None (1) 1M x 36 (1) 4M x 36 24MB 4MB (1) 1M x 36 (1) 4M x 36 24MB None (1) 2M x 36 (1) 4M x 36 28MB 4MB (1) 2M x 36 (1) 4M x 36 32MB None (1) 4M x 36 (1) 4M x 36 36MB 4MB (1) 4M x 36 (1) 4M x 36 SIMM JUMPER CONFIGURATION Size JP5 On board memory enabled Pins 2 & 3 closed On board memory disabled Pins 1 & 2 closed VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 Bank 2 512KB (1) 256K x 16 None None 1MB (1) 256K x 16 (1) 256K x 16 None 2MB (1) 256K x 16 (1) 256K x 16 (2) 256K x 16 CPU SPEED SELECTION Speed JP11 JP12 25MHz Pins 1 & 5 closed Pins 1 & 2 closed 33MHz Pins 1 & 5 closed Pins 1 & 2 closed 40MHz Pins 2 & 6 closed Pins 2 & 3 closed 50iMHz Pins 1 & 5 closed Pins 1 & 2 closed 66iMHz Pins 1 & 5 closed Pins 1 & 2 closed 75iMHz Pins 1 & 5 closed Pins 1 & 2 closed 100iMHz Pins 1 & 5 closed Pins 1 & 2 closed CPU TYPE SELECTION Type JP17A JP17B JP17C JP17D JP17E 80486 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 80486 (WB) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 CX486DX2 * 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 IBM486DX2 * 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 TI486DX2 * 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 CX486DX2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 IBM486DX2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 TI486DX2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 (SL)AM486DX2(SV8T) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (SL)AM486DX2(SV8B) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 P24C 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 P24D 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 AMD NV8T 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 AMD NV8B 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 CX486DX4 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 IBM486DX4 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 (SL)AM486DX4(SV8T) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (SL)AM486DX4(SV8B) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 P24T 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 CX 5X86 1 & 2 2 & 3 2 & 3 Open Open IBM 5X86 1 & 2 2 & 3 2 & 3 Open Open Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU. CPU TYPE SELECTION (CON’T) Type JP17F JP17G JP18 JP19 JP26A 80486 2 & 3 2 & 3 1 & 2 2 & 3 2 & 3 80486 (WB) 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 CX486DX2 * 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 IBM486DX2 * 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 TI486DX2 * 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 CX486DX2 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 IBM486DX2 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 TI486DX2 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 (SL)AM486DX2(SV8T) 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3 (SL)AM486DX2(SV8B) 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 P24C 2 & 3 2 & 3 1 & 2 2 & 3 2 & 3 P24D 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 AMD NV8T 2 & 3 2 & 3 1 & 2 2 & 3 2 & 3 AMD NV8B 2 & 3 2 & 3 1 & 2 2 & 3 2 & 3 CX486DX4 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 IBM486DX4 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 (SL)AM486DX4(SV8T) 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3 (SL)AM486DX4(SV8B) 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 P24T 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 CX 5X86 Open Open Open 1 & 2 Open IBM 5X86 Open Open Open 1 & 2 Open Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU. CPU TYPE SELECTION (CON’T) Type JP26B JP26C JP26D JP26E JP26F 80486 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 80486 (WB) 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 CX486DX2 * 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 IBM486DX2 * 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 TI486DX2 * 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 CX486DX2 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 IBM486DX2 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 TI486DX2 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (SL)AM486DX2(SV8T) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (SL)AM486DX2(SV8B) 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 P24C 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 P24D 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 AMD NV8T 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 AMD NV8B 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 CX486DX4 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 IBM486DX4 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (SL)AM486DX4(SV8T) 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 (SL)AM486DX4(SV8B) 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 P24T 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 CX 5X86 Open Open 1 & 2 1 & 2 2 & 3 IBM 5X86 Open Open 1 & 2 1 & 2 2 & 3 Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU. CPU TYPE SELECTION (CON’T) Type JP26G JP26H JP27 JP32 80486 2 & 3 2 & 3 3 & 4 1 & 2 80486 (WB) 1 & 2 1 & 2 3 & 4 1 & 2 CX486DX2 * 2 & 3 2 & 3 3 & 4 1 & 2 IBM486DX2 * 2 & 3 2 & 3 3 & 4 1 & 2 TI486DX2 * 2 & 3 2 & 3 3 & 4 1 & 2 CX486DX2 2 & 3 2 & 3 3 & 4 2 & 3 IBM486DX2 2 & 3 2 & 3 3 & 4 2 & 3 TI486DX2 2 & 3 2 & 3 3 & 4 2 & 3 (SL)AM486DX2 (SV8T) 2 & 3 2 & 3 2 & 3 1 & 2 (SL)AM486DX2 (SV8B) 1 & 2 1 & 2 2 & 3 1 & 2 P24C 2 & 3 2 & 3 3 & 4 1 & 2 P24D 1 & 2 1 & 2 3 & 4 1 & 2 AMD NV8T 2 & 3 2 & 3 3 & 4 1 & 2 AMD NV8B 2 & 3 2 & 3 3 & 4 1 & 2 CX486DX4 2 & 3 2 & 3 3 & 4 1 & 2 IBM486DX4 2 & 3 2 & 3 3 & 4 1 & 2 (SL)AM486DX4 (SV8T) 2 & 3 2 & 3 3 & 4 1 & 2 (SL)AM486DX4 (SV8B) 1 & 2 1 & 2 3 & 4 1 & 2 P24T 1 & 2 1 & 2 1 & 2 1 & 2 CX 5X86 1 & 2 Open 3 & 4 1 & 2 IBM 5X86 1 & 2 Open 3 & 4 1 & 2 Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU. CPU TYPE SELECTION (CON’T) Type JP36A JP36B JP36C JP36D 80486 2 & 3 2 & 3 2 & 3 2 & 3 80486 (WB) 2 & 3 2 & 3 2 & 3 2 & 3 CX486DX2 * 1 & 2 1 & 2 1 & 2 1 & 2 IBM486DX2 * 1 & 2 1 & 2 1 & 2 1 & 2 TI486DX2 * 1 & 2 1 & 2 1 & 2 1 & 2 CX486DX2 1 & 2 1 & 2 1 & 2 1 & 2 IBM486DX2 1 & 2 1 & 2 1 & 2 1 & 2 TI486DX2 1 & 2 1 & 2 1 & 2 1 & 2 (SL)AM486DX2 (SV8T) 1 & 2 1 & 2 1 & 2 1 & 2 (SL)AM486DX2 (SV8B) 1 & 2 1 & 2 1 & 2 1 & 2 P24C 2 & 3 2 & 3 2 & 3 2 & 3 P24D 2 & 3 2 & 3 2 & 3 2 & 3 AMD NV8T 2 & 3 2 & 3 2 & 3 2 & 3 AMD NV8B 2 & 3 2 & 3 2 & 3 2 & 3 CX486DX4 1 & 2 1 & 2 1 & 2 1 & 2 IBM486DX4 1 & 2 1 & 2 1 & 2 1 & 2 (SL)AM486DX4 (SV8T) 1 & 2 1 & 2 1 & 2 1 & 2 (SL)AM486DX4 (SV8B) 1 & 2 1 & 2 1 & 2 1 & 2 P24T 2 & 3 2 & 3 2 & 3 2 & 3 CX 5X86 1 & 2 1 & 2 1 & 2 1 & 2 IBM 5X86 1 & 2 1 & 2 1 & 2 1 & 2 Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU. DMA CHANNEL SELECTION Channel JP7 JP8 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed