CSS LABORATORIES, INC. MS-4861 Processor 80486SX/SL80486SX/UMCU5/80486DX/SL80486DX/CXM7/ AM486DX2/AM486DX2+/80486DX2/SL80486DX2/SL80486DX4/ AM486DX5/P24D/CX M1SC/P24T Processor 33/40/66(internal)80(internal)/100(internal)/133(internal)MHz Speed Chip Set ALI Video Chip Unidentified Set Maximum 128MB Onboard Memory Maximum 1MB Video Memory Cache 128/256/512KB BIOS AMI Dimensions Unidentified I/O Options Floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), VGA port, PC/104 connectors (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location IDE interface 1 J3 Serial port 2 J8 Parallel port J4 Serial port 1 J9 On board IDE disk J5 VGA port J10 connector Floppy drive J6 PC/104 connector P1 interface IDE interface 2 J7 PC/104 connector P2 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not JP1 Unidentified alter » Factory configured - do not JP14 Unidentified alter (flash BIOS select) » Factory configured - do not JP23 Unidentified alter » Factory configured - do not JP35 Unidentified alter (IDE master) » Factory configured - do not JP40 Unidentified alter » Factory configured - do not JP41 Unidentified alter » Factory configured - do not JP45 Unidentified alter » Factory configured - do not JP46 Unidentified alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 4MB (1) 1M x 36 None None 8MB (1) 1M x 36 (1) 1M x 36 None 8MB (1) 2M x 36 None None 10MB (1) 1M x 36 (1) 1M x 36 (1) 512K x 36 10MB (1) 2M x 36 (1) 512K x 36 None 12MB (1) 2M x 36 (1) 1M x 36 None 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 14MB (1) 2M x 36 (1) 1M x 36 (1) 512K x 36 16MB (1) 4M x 36 None None 16MB (1) 2M x 36 (1) 2M x 36 None 20MB (1) 4M x 36 (1) 1M x 36 None 20MB (1) 4M x 36 (1) 512K x 36 (1) 512K x 36 22MB (1) 4M x 36 (1) 1M x 36 (1) 512K x 36 24MB (1) 4M x 36 (1) 2M x 36 None 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 26MB (1) 4M x 36 (1) 2M x 36 (1) 512K x 36 28MB (1) 4M x 36 (1) 2M x 36 (1) 1M x 36 32MB (1) 8M x 36 None None 32MB (1) 4M x 36 (1) 4M x 36 None 34MB (1) 8M x 36 (1) 512K x 36 None 34MB (1) 4M x 36 (1) 4M x 36 (1) 512K x 36 36MB (1) 8M x 36 (1) 512K x 36 (1) 512K x 36 38MB (1) 8M x 36 (1) 512K x 36 (1) 1M x 36 40MB (1) 8M x 36 (1) 2M x 36 None 40MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 42MB (1) 8M x 36 (1) 2M x 36 (1) 512K x 36 44MB (1) 8M x 36 (1) 2M x 36 (1) 1M x 36 48MB (1) 8M x 36 (1) 4M x 36 None 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 50MB (1) 8M x 36 (1) 4M x 36 (1) 512K x 36 DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 52MB (1) 8M x 36 (1) 4M x 36 (1) 1M x 36 56MB (1) 8M x 36 (1) 4M x 36 (1) 2M x 36 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 None None 64MB (1) 8M x 36 (1) 8M x 36 None 66MB (1) 8M x 36 (1) 8M x 36 (1) 512K x 36 68MB (1) 8M x 36 (1) 8M x 36 (1) 1M x 36 68MB (1) 16M x 36 (1) 1M x 36 None 70MB (1) 16M x 36 (1) 1M x 36 (1) 512K x 36 72MB (1) 16M x 36 (1) 2M x 36 None 72MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 74MB (1) 16M x 36 (1) 2M x 36 (1) 512K x 36 76MB (1) 16M x 36 (1) 2M x 36 (1) 1M x 36 80MB (1) 16M x 36 (1) 4M x 36 None 80MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 82MB (1) 16M x 36 (1) 4M x 36 (1) 512K x 36 84MB (1) 16M x 36 (1) 4M x 36 (1) 1M x 36 88MB (1) 16M x 36 (1) 4M x 36 (1) 2M x 36 96MB (1) 16M x 36 (1) 8M x 36 None 96MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 98MB (1) 16M x 36 (1) 8M x 36 (1) 512K x 36 100MB (1) 16M x 36 (1) 8M x 36 (1) 1M x 36 104MB (1) 16M x 36 (1) 8M x 36 (1) 2M x 36 112MB (1) 16M x 36 (1) 8M x 36 (1) 4M x 36 128MB (1) 16M x 36 (1) 16M x 36 None 128MB (1) 16M x 36 (1) 8M x 36 (1) 8M x 36 Note: Board accepts x 32 SIMMs. 512KB x 32/36 is not recommended. CACHE CONFIGURATION Size Bank 0 TAG 128KB (4) 32K x 8 (1) 32K x 8 256KB (4) 64K x 8 (1) 32K x 8 512KB (4) 128K x 8 (1) 32K x 8 Note: The location of bank 0 & the TAG is unidentified. CACHE JUMPER CONFIGURATION Size JP21 JP22 128KB Open Open 256KB Open Closed 512KB Closed Closed VIDEO MEMORY CONFIGURATION Size Bank 0 1MB (2) 256K x 16 Note: The location of bank 0 is unidentified. CPU SPEED SELECTION Speed JP15 JP16 JP18 JP25 33MHz Closed Open Pins 1 & 2 Open closed 40MHz Open Closed Pins 2 & 3 Closed closed 66iMHz Closed Open Pins 1 & 2 Open closed 80iMHz Open Closed Pins 2 & 3 Closed closed 100iMHz Closed Open Pins 1 & 2 Open closed 133iMHz Closed Open Pins 1 & 2 Open closed CPU TYPE SELECTION Type JP5 JP6 JP7 JP8 JP9 80486SX Open Open 1 & 2 Open Open SL80486SX Closed Open 3 & 4 3 & 4 3 & 4 UMC U5 Open Open 1 & 2 1 & 2 1 & 2 80486DX Open Open 1 & 2 Open Open SL80486DX Closed Open 3 & 4 3 & 4 3 & 4 CX M7 Closed Open 5 & 6 5 & 6 5 & 6 AM486DX2 Open Closed 1 & 2 Open Open AM486DX2-66 Open Closed 1 & 2 Open Open AM486DX2-80 Open Closed 1 & 2 Open Open AM486DX2-100 Open Closed 1 & 2 Open Open AM486DX2+-66 Closed Open 3 & 4 3 & 4 3 & 4 AM486DX2+-80 Closed Open 3 & 4 3 & 4 3 & 4 AM486DX2+-100 Closed Open 3 & 4 3 & 4 3 & 4 80486DX2 Open Open 1 & 2 Open Open SL80486DX2 Closed Open 3 & 4 3 & 4 3 & 4 SL80486DX4 Closed Open 3 & 4 3 & 4 3 & 4 AM486DX5 Open Open 1 & 2 Open Open P24D Closed Open 3 & 4 3 & 4 3 & 4 CX M1SC Closed Open 3 & 4 3 & 4 3 & 4 P24T Closed Open 3 & 4 3 & 4 3 & 4 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP10 JP11 JP12 JP13 JP34 80486SX Open 1 & 2 1 & 2 Open Open SL80486SX Open 1 & 2 1 & 2 Open Open UMC U5 Open 1 & 2 1 & 2 Open Open 80486DX Open 1 & 2 2 & 3 2 & 3 Open SL80486DX Open 1 & 2 2 & 3 2 & 3 Open CX M7 1 & 2 1 & 2 2 & 3 2 & 3 1 & 2 AM486DX2 Open 1 & 2 2 & 3 2 & 3 Open AM486DX2-66 Open 1 & 2 2 & 3 2 & 3 Open AM486DX2-80 Open 1 & 2 2 & 3 2 & 3 Open AM486DX2-100 Open 1 & 2 2 & 3 2 & 3 Open AM486DX2+-66 1 & 3, 5 2 & 3 2 & 3 2 & 3 2 & 3 & 6 AM486DX2+-80 1 & 3, 5 2 & 3 2 & 3 2 & 3 2 & 3 & 6 AM486DX2+-100 5 & 6 2 & 3 2 & 3 2 & 3 2 & 3 80486DX2 Open 1 & 2 2 & 3 2 & 3 Open SL80486DX2 Open 1 & 2 2 & 3 2 & 3 Open SL80486DX4 Open 1 & 2 2 & 3 2 & 3 Open AM486DX5 Open 1 & 2 2 & 3 2 & 3 Open P24D 5 & 6 2 & 3 2 & 3 2 & 3 2 & 3 CX M1SC 5 & 6 2 & 3 2 & 3 2 & 3 2 & 3 P24T Open 2 & 3 2 & 3 1 & 2 2 & 3 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage JP2 JP3 3.3v Pins 2 & 3 closed Pins 2 & 3 closed 3.45v Pins 2 & 3 closed Pins 2 & 3 closed 3.6v Pins 2 & 3 closed Pins 2 & 3 closed 4v Pins 2 & 3 closed Pins 2 & 3 closed 5v Pins 1 & 2 closed Pins 1 & 2 closed DMA CHANNEL SELECTION Channel JP19 JP20 » 1 Pins 2 & 3 closed Pins 2 & 3 closed 3 Pins 1 & 2 closed Pins 1 & 2 closed