PACKARD BELL PB450, LEGEND-CD 486SX Processor 80486SX/SL80486SX/80486DX/SL80486DX/80486DX2/SL80486DX2/80486DX4/P24T Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set OPTI Video Chip Cirrus Logic Set Maximum 64MB Onboard Memory Maximum 2MB Video Memory Cache 128/512KB BIOS Unidentified Dimensions 254mm x 218mm I/O Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse Options port, serial ports (2), VESA feature connector, VGA port, riser slot NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port J2 IDE interface 1 J24 VGA port J3 External battery J30 Parallel port J5 Front panel J34 connector Serial port 1 J6 Power LED & keylock J35 VESA feature J14 Speaker J36 connector Floppy drive J21 Chassis fan power J38 interface Serial port 2/modem J22 Riser slot SL1 connector IDE interface 2 J23 USER CONFIGURABLE SETTINGS Function Label Position » Monitor type select color J8 Closed Monitor type select monochrome J8 Open » Video IRQ9 disabled J9 Open Video IRQ9 enabled J9 Closed » Factory configured - do not J10 Unidentified alter » Factory configured - do not J11 Unidentified alter » Flash BIOS normal operation J17 Pins 2 & 3 closed Flash BIOS boot block enabled J17 Pins 1 & 2 closed » DRAM parity disabled J18 Pins 2 & 3 closed DRAM parity enabled J18 Pins 1 & 2 closed » On board video enabled J19 Pins 2 & 3 closed On board video disabled J19 Pins 1 & 2 closed » On board I/O enabled J20 Pins 2 & 3 closed On board I/O disabled J20 Pins 1 & 2 closed Battery type select internal J30 Pins 3 & 4 closed Battery type select external J30 Closed » LDEV# bypass enabled J33 Closed LDEV# bypass disabled (PCI J33 Open card present) Speaker type select internal J36 Pins 3 & 4 closed Speaker type select external J36 Closed » On board memory enabled J37 Open On board memory disabled J37 Closed DRAM 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 6MB 4MB (1) 512K x 36 None 8MB 4MB (1) 512K x 36 (1) 512K x 36 8MB 4MB (1) 1M x 36 None 12MB 4MB (1) 1M x 36 (1) 1M x 36 12MB 4MB (1) 2M x 36 None 16MB 4MB (1) 2M x 36 (1) 1M x 36 20MB 4MB (1) 2M x 36 (1) 2M x 36 20MB 4MB (1) 4M x 36 None 24MB 4MB (1) 4M x 36 (1) 1M x 36 24MB 4MB (1) 1M x 36 (1) 4M x 36 28MB 4MB (1) 2M x 36 (1) 4M x 36 36MB 4MB (1) 4M x 36 (1) 4M x 36 36MB 4MB (1) 8M x 36 None 40MB 4MB (1) 8M x 36 (1) 1M x 36 52MB 4MB (1) 8M x 36 (1) 4M x 36 64MB 4MB (1) 8M x 36 (1) 8M x 36 Note: If 64MB is installed, J37 must be closed. CACHE CONFIGURATION Size Bank 0 TAG0 TAG1 128KB (4) 32K x 8 (1) 32K x 8 (1) 64K x 1 512KB (4) 128K x 8 (1) 32K x 8 (1) 64K x 1 CACHE JUMPER CONFIGURATION Size J26 128KB Open 512KB Pins 1 & 2, 3 & 4 closed VIDEO MEMORY CONFIGURATION Size Bank 0 2MB (2) 256K x 16 CPU SPEED SELECTION Speed J25 25MHz Pins 1 & 2 closed 33MHz Pins 2 & 3 closed 50iMHz Pins 1 & 2 closed 66iMHz Pins 2 & 3 closed 75iMHz Pins 1 & 2 closed 100iMHz Pins 2 & 3 closed CPU TYPE SELECTION Type J28 J31 80486SX Pins 2 & 3 closed Pins 5 & 6 closed SL80486SX Pins 1 & 2 closed Pins 1 & 2, 3 & 4 closed 80486DX Pins 2 & 3 closed Pins 1 & 2, 3 & 4 closed SL80486DX Pins 1 & 2 closed Pins 1 & 2, 3 & 4 closed 80486DX2 Pins 2 & 3 closed Pins 1 & 2, 3 & 4 closed SL80486DX2 Pins 1 & 2 closed Pins 1 & 2, 3 & 4 closed 80486DX4 Pins 2 & 3 closed Pins 1 & 2, 3 & 4 closed P24T Pins 1 & 2 closed Pins 1 & 2, 3 & 4 closed CPU MULTIPLIER SELECTION (80486DX4 ONLY) Multiplier J29 2x Pins 2 & 3 closed 3x Open CPU VOLTAGE SELECTION Voltage J32 3.3v Pins 1 & 3, 2 & 4 closed 5v Pins 3 & 5, 4 & 5 closed DMA CHANNEL SELECTION Channel J15 J16 » 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed