MICRONICS COMPUTERS INC. M4PE Processor 80486SX/80486DX/80486DX2/80486DX4 Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal) MHz Speed Chip Set Intel Max. 128MB Onboard DRAM Cache 128/256 KB BIOS Phoenix Dimensions 355mm x 304mm I/O Options Floppy drive interface, IDE interface, PCI slots (3), parallel port, PS/2 mouse port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Primary IDE CN1 PCI slot 1 J18 interface (PCI) Secondary IDE CN2 PCI slot 2 J19 interface (ISA) Floppy drive CN3 PCI slot 3 J20 interface PS/2 mouse port J2 Fan power connector J102 Speaker J5 Power LED & keylock W12 Parallel port J8 Turbo switch W29 Serial port 2 J10 IDE interface LED W39 (PCI) Serial port 1 J11 IDE interface LED W46 (ISA) USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured do not alter J101 Open » Secondary cache in write-back W1 pins 2 & 3 mode Secondary cache in write-through W1 pins 1 & 2 mode » Internal cache in write-through W4 Open mode Internal cache in write-back mode W4 Closed » BIOS in normal mode W6 pins 2 & 3 closed BIOS recovery mode W6 pins 1 & 2 closed » Factory configured do not alter W8 Closed » PS/2 mouse installed W10 Closed PS/2 mouse not installed W10 Open » Monitor type select color W14 Closed Monitor type select monochrome W14 Open » CPU generates parity W17 pins 2 & 3 closed DPU generates parity W17 pins 1 & 2 closed » DPU does not force parity error W18 pins 2 & 3 closed DPU forces parity error W18 pins 1 & 2 closed » Factory configured do not alter W19 Closed » Secondary cache installed W21 Open Secondary cache not installed W21 Closed » Secondary cache 0 wait state W25 Open Secondary cache 1 wait state W25 Closed » PCI IDE uses ISA IRQ 14 W35 Closed PCI IDE does not use ISA IRQ 14 W35 Open » PCI IDE uses PCI INTR_A W37 Closed PCI IDE does not use PCI INTR_A W37 Open » PCI IDE does not use ISA IRQ15 W38 Open PCI IDE uses ISA IRQ15 W38 Closed USER CONFIGURABLE SETTINGS (CONTINUED) Function Jumper Position » ISA IDE uses ISA IRQ 15 W42 pins 2 & 3 ISA IDE used ISA IRQ 14 W42 pins 1 & 2 » ISA IDE uses PIO transfer W43 Open ISA IDE uses channel 7 W43 pins 2 & 3 ISA IDE uses DMA channel 6 W43 pins 1 & 2 » ISA IDE uses PIO transfer W44 Open ISA IDE uses channel 7 W44 pins 2 & 3 ISA IDE uses DMA channel 6 W44 pins 1 & 2 » 3.45V for DX4 - 100 MHz W50 Open 3.30v for DX4 - 75 MHz W50 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (1) 1M x 36 (1) 1M x 36 None None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 None None 24MB (1) 2M x 36 (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 4M x 36 None None 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 None None 72MB (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 80MB (1) 8M x 36 (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE JUMPER CONFIGURATION Size W5 W22 W23 128KB Open Open Open 256KB Closed Closed Closed TAG ADDRESS CONFIGURATION Address W24 W26 9-bit Closed Open 7-bit Open Closed 8-bit Closed Closed Illegal Open Open CPU TYPE CONFIGURATION Type W2 W3 W33 80486SX pins 2 & 3 Closed Open closed 80486DX Closed Closed Open 80486DX2 Closed Closed Open 80486DX4 (50i) Closed Closed pins 2 & 3 closed 80486DX4 (66i) Closed Closed pins 2 & 3 closed 80486DX4 (75i) Closed Closed Open 80486DX4 (100i) Closed Closed Open 80486 DX4 (future Closed Closed pins 1 & 2 use) closed Pentium Overdrive Closed Open Open CPU SPEED CONFIGURATION Speed W16 W20 25MHz Open Closed 33MHz Closed Open 50iMHz Open Closed 66iMHz Closed Open 75iMHz Open Closed 100iMHz Closed Open