MICRONICS COMPUTERS, INC. M4P Processor 80486SX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set Intel Video Chip Set None Maximum Onboard 128MB Memory Maximum Video None Memory Cache 128/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Auxiliary keyboard J8 Reset switch J55 connector Serial port 1 J18 Speaker J56 Serial port 2 J21 Power LED & keylock J57 Parallel port J22 Turbo LED J62 IDE interface J38 Turbo switch J63 Floppy drive J39 32-bit PCI slots PC1 - PC3 interface IDE interface LED J54 USER CONFIGURABLE SETTINGS Function Label Position IRQ5 used by PCI J27 Closed IRQ5 available for ISA peripheral J27 Open IRQ11 used by PCI J28 Closed IRQ11 available for ISA J28 Open peripheral IRQ15 used by PCI J29 Closed IRQ15 available for ISA J29 Open peripheral PS/2 mouse enabled J34 Closed PS/2 mouse disabled J34 Open » Factory configured - do not alter J46 Pins 1 & 2 closed » Factory configured - do not alter J47 Pins 2 & 3 closed » Factory configured - do not alter J48 Pins 1 & 2 closed » Factory configured - do not alter J49 Pins 1 & 2 closed » Factory configured - do not alter J50 Pins 1 & 2 closed » Factory configured - do not alter J51 Pins 2 & 3 closed » Factory configured - do not alter J59 Closed » Factory configured - do not alter J60 Open Cache type select write through J61 Pins 1 & 2 closed Cache type select write back J61 Pins 2 & 3 closed » Factory configured - do not alter J64 Open » Factory configured - do not alter J65 Open » Factory configured - do not alter J66 Open » Factory configured - do not alter J67 Open » Factory configured - do not alter J68 Open » Factory configured - do not alter J69 Open » Factory configured - do not alter J72 Open » Factory configured - do not alter W1 Open Flash BIOS write protect disabled W2 Closed Flash BIOS write protect enabled W2 Open » Monitor type select color W5 Closed Monitor type select monochrome W5 Open Parallel port IRQ select IRQ7 W8 Pins 1 & 2 closed Parallel port IRQ select IRQ5 W8 Pins 2 & 3 closed » Factory configured - do not alter W9 Open Flash BIOS normal operation W10 Pins 2 & 3 closed Flash BIOS recovery mode W10 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x None None None 36 2MB (1) 512K x None None None 36 2MB (1) 256K x (1) 256K x None None 36 36 3MB (1) 512K x (1) 256K x None None 36 36 3MB (1) 256K x (1) 256K x (1) 256K x None 36 36 36 3MB (1) 256K x (1) 512K x None None 36 36 4MB (1) 1M x 36 None None None 4MB (1) 512K x (1) 256K x (1) 256K x None 36 36 36 4MB (1) 512K x (1) 512K x None None 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 1M x 36 (1) 256K x None None 36 5MB (1) 512K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 6MB (1) 512K x (1) 512K x (1) 512K x None 36 36 36 6MB (1) 512K x (1) 1M x 36 None None 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 7MB (1) 256K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 8MB (1) 2M x 36 None None None 8MB (1) 1M x 36 (1) 512K x (1) 512K x None 36 36 8MB (1) 1M x 36 (1) 1M x 36 None None 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 9MB (1) 2M x 36 (1) 256K x None None 36 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 None 36 10MB (1) 1M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 10MB (1) 512K x (1) 1M x 36 (1) 1M x 36 None 36 10MB (1) 512K x (1) 2M x 36 None None 36 11MB (1) 2M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 12MB (1) 2M x 36 (1) 512K x (1) 512K x None 36 36 12MB (1) 2M x 36 (1) 1M x 36 None None 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 None 12MB (1) 1M x 36 (1) 2M x 36 None None 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 14MB (1) 2M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 14MB (1) 512K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 4M x 36 None None None 16MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 None None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 17MB (1) 4M x 36 (1) 256K x None None 36 17MB (1) 256K x (1) 2M x 36 (1) 2M x 36 None 36 17MB (1) 256K x (1) 4M x 36 None None 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x None 36 36 18MB (1) 4M x 36 (1) 512K x None None 36 18MB (1) 512K x (1) 2M x 36 (1) 2M x 36 None 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 18MB (1) 512K x (1) 4M x 36 None None 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 512K x (1) 512K x None 36 36 20MB (1) 4M x 36 (1) 1M x 36 None None 20MB (1) 1M x 36 (1) 4M x 36 None None 22MB (1) 4M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 None 24MB (1) 2M x 36 (1) 4M x 36 None None 25MB (1) 256K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 26MB (1) 512K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 8M x 36 None None None 32MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 None None 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 33MB (1) 8M x 36 (1) 256K x None None 36 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 None 36 33MB (1) 256K x (1) 8M x 36 None None 36 34MB (1) 8M x 36 (1) 256K x (1) 256K x None 36 36 34MB (1) 8M x 36 (1) 512K x None None 36 34MB (1) 512K x (1) 4M x 36 (1) 4M x 36 None 36 34MB (1) 512K x (1) 8M x 36 None None 36 35MB (1) 8M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 36MB (1) 8M x 36 (1) 512K x (1) 512K x None 36 36 36MB (1) 8M x 36 (1) 1M x 36 None None 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 None 36MB (1) 1M x 36 (1) 8M x 36 None None 38MB (1) 8M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 40MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 None 40MB (1) 8M x 36 (1) 2M x 36 None None 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 None 40MB (1) 2M x 36 (1) 8M x 36 None None 44MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 None 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 None 48MB (1) 4M x 36 (1) 8M x 36 None None 49MB (1) 256K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 50MB (1) 512K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 56MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 56MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 64MB (1) 8M x 36 (1) 8M x 36 None None 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 65MB (1) 256K x (1) 8M x 36 (1) 8M x 36 None 36 66MB (1) 512K x (1) 8M x 36 (1) 8M x 36 None 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 None 72MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 None 80MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 None 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 None 97MB (1) 256K x (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 36 98MB (1) 512K x (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 36 100MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 104MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 128KB (4) 32K x 8 None 256KB (4) 32K x 8 (4) 32K x 8 CACHE JUMPER CONFIGURATION Size J52 J53 J58 128KB Pins 1 & 2 Pins 2 & 3 Open closed closed 256KB Pins 2 & 3 Pins 1 & 2 Closed closed closed CPU SPEED SELECTION Speed J40 J45 25MHz Open Pins 2 & 3 closed 33MHz Closed Pins 1 & 2 closed 50iMHz Open Pins 2 & 3 closed 66iMHz Closed Pins 1 & 2 closed CPU TYPE SELECTION Type J71 80486SX Pins 2 & 3 closed 80486DX Pins 1 & 2, 3 & 4 closed 80486DX2 Pins 1 & 2, 3 & 4 closed DMA CHANNEL SELECTION Channel W6 W7 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed IDE DMA CHANNEL SELECTION Channel W11 W12 6 Pins 1 & 2 closed Pins 1 & 2 closed 7 Pins 2 & 3 closed Pins 2 & 3 closed DIRQ SELECTION DIRQ J13 J20 J23 J24 J25 J26 J35 3 Open Open Open Open Closed Open Open 4 Open Open Open Closed Open Open Open 5 Open Open Open Open Open Closed Open 6 Open Open Closed Open Open Open Open 7 Open Closed Open Open Open Open Open 10 Closed Open Open Open Open Open Open 14 Open Open Open Open Open Open Closed