EPSON, INC. ACTION PC 2600, ACTION PC 5500 Processor 80846DX/CX486DX2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/P24D/P24T/CX M1SC Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)/MHz Speed Chip Set Unidentified Video Chip Trident Set Maximum 132MB Onboard Memory Maximum 1MB Video Memory Cache 128/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Floppy drive interface, IDE interfaces (2), parallel port, PS/2 Options mouse port, serial ports (2), VGA feature connector, VGA port, riser slot NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location IDE interface 1 CN1 Serial port 1 CN11 IDE interface 2 CN2 Serial port 2 CN12 IDE interface LED CN3 Parallel port CN13 Power LED CN4 Riser slot SL1 PS/2 mouse port CN8 VGA port VNC1 Floppy drive interface CN10 VGA feature connector VNC3 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP28 Pins 2 & 3 closed CMOS memory clear JP28 Pins 1 & 2 closed » Factory configured - do not JP29 Unidentified alter » Factory configured - do not JP34 Unidentified alter » Factory configured - do not JP35 Unidentified alter » Factory configured - do not VJ1 Unidentified alter » Monitor type select interlaced VJ3 Closed Monitor type select non VJ3 Open interlaced » Factory configured - do not VJ4 Unidentified alter » On board video enabled VJP1 Pins 2 & 3 closed On board video disabled VJP1 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 4MB 4MB None None 5MB 4MB (1) 256K x 32 None 6MB 4MB (1) 256K x 32 (1) 256K x 32 6MB 4MB (1) 512K x 32 None 8MB 4MB (1) 512K x 32 (1) 512K x 32 8MB 4MB (1) 1M x 32 None 12MB 4MB (1) 1M x 32 (1) 1M x 32 12MB 4MB (1) 2M x 32 None 20MB 4MB (1) 2M x 32 (1) 2M x 32 20MB 4MB (1) 4M x 32 None 36MB 4MB (1) 4M x 32 (1) 4M x 32 36MB 4MB (1) 8M x 32 None 68MB 4MB (1) 8M x 32 (1) 8M x 32 68MB 4MB (1) 16M x 32 None 132MB 4MB (1) 16M x 32 (1) 16M x 32 Note: Bank 0 is factory installed and is not configurable. 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 Note: The location of banks 0 & 1 is unidentified. CACHE JUMPER CONFIGURATION Size JP19 JP20 JP21 None Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed 128KB Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 256KB Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 512KB 512KB None 1MB 512KB 512KB Note: Bank 0 is factory installed and is not configurable. The size of the upgrade chips is unidentified. CPU SPEED SELECTION Speed JP24 JP25 25MHz Pins 2 & 3 closed Pins 2 & 3 closed 33MHz Pins 1 & 2 closed Pins 1 & 2 closed 50iMHz Pins 2 & 3 closed Pins 2 & 3 closed 66iMHz Pins 1 & 2 closed Pins 1 & 2 closed 75iMHz Pins 2 & 3 closed Pins 2 & 3 closed 100iMHz Pins 1 & 2 closed Pins 1 & 2 closed CPU TYPE SELECTION Type JP1 JP2 JP3 JP4 JP5 JP6 80486DX 1 & 2, 3 & 4 Open 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 CX486DX2 1 & 2, 3 & 4 2 & 3 1 & 2, 1 & 2 2 & 3 3 & 4 3 & 4 80486DX2 1 & 2, 3 & 4 Open 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 SL80486DX2 1 & 2, 3 & 4 Open 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 AM486DX4 1 & 2, 3 & 4 Open 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 80486DX4 1 & 2, 3 & 4 Open 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 P24D 1 & 2, 3 & 4 Open 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 P24T 1 & 2, 3 & 4 1 & 2 2 & 3, 1 & 2 2 & 3 3 & 4 4 & 5 CX M1SC 1 & 2, 3 & 4, Open 2 & 3, 1 & 2 2 & 3 3 & 4 5 & 6 4 & 5 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP7 JP8 JP9 JP10 JP11 JP12 80486DX 1 & 2 Open Open Open Open 3 & 4 CX486DX2 2 & 3 Open 2 & 3 1 & 2 Open 3 & 4 80486DX2 2 & 3 1 & 2 Open Open 1 & 2 3 & 4 SL80486DX2 1 & 2 Open Open Open Open 3 & 4 AM486DX4 1 & 2 Open Open Open Open 3 & 4 80486DX4 1 & 2 Open Open Open Open 3 & 4 P24D 1 & 2 1 & 2 Open Open 1 & 2 3 & 4 P24T 1 & 2 Open 1 & 2 2 & 3 Open 2 & 3 CX M1SC 1 & 2 1 & 2 Open Open 1 & 2 3 & 4 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP13 JP14 JP22 JP23 JP32 JP33 80486DX Open Open 1 & 2 1 & 2 Open Open CX486DX2 Open Open 1 & 2 2 & 3 Open Open 80486DX2 Open 1 & 2 1 & 2 1 & 2 Open Open SL80486DX2 Open Open 1 & 2 1 & 2 Open Open AM486DX4 Open Open 1 & 2 1 & 2 Open Open 80486DX4 Open Open 1 & 2 1 & 2 Open Open P24D Open 1 & 2 1 & 2 1 & 2 Open Open P24T Open Open 1 & 2 1 & 2 Open Open CX M1SC Open 1 & 2 1 & 2 2 & 3 Open 1 & 2 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage JP15 JP16 JP17 JP18 JP36 3.3v Open Open Closed Closed 2 & 3 3.45v Open Open Closed Closed 1 & 2 5v Closed Closed Open Open Open Note: Pins designated should be in the closed position. DMA CHANNEL SELECTION Channel JP30 JP31 1 Pins 1 & 2 closed Pins 1 & 2 closed » 3 Pins 2 & 3 closed Pins 2 & 3 closed