MICRONICS COMPUTERS, INC.
LPX54 (REV. 3A)
| 
 Processor  | 
 Pentium  | 
| 
 Processor Speed  | 
 75/90/100MHz  | 
| 
 Chip Set  | 
 VLSI  | 
| 
 Max. Onboard DRAM  | 
 128MB  | 
| 
 Cache  | 
 256/512KB  | 
| 
 BIOS  | 
 Phoenix  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 PS/2 mouse port, parallel port, serial ports (2), VGA port, VGA feature connector, floppy drive interface, IDE interfaces (2), riser slot  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 PS/2 mouse port  | 
 J6  | 
 Riser slot  | 
 SL1  | 
| 
 Floppy drive interface  | 
 J10  | 
 Turbo switch  | 
 W12  | 
| 
 Serial port 1  | 
 J11  | 
 Turbo LED  | 
 W13  | 
| 
 Serial port 2  | 
 J12  | 
 Reset switch  | 
 W15  | 
| 
 Parallel port  | 
 J13  | 
 Speaker  | 
 W16  | 
| 
 IDE interface 2  | 
 J14  | 
 Auxiliary keyboard connector  | 
 W18  | 
| 
 IDE interface 1  | 
 J15  | 
 Power LED & keylock  | 
 W19  | 
| 
 VGA feature connector  | 
 J17  | 
 IDE interface LED  | 
 W27  | 
| 
 VGA port  | 
 J18  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Cache type select write back  | 
 W1  | 
 Open  | 
| 
 Cache type select write through  | 
 W1  | 
 Closed  | |
| 
 »  | 
 Flash BIOS normal mode  | 
 W9  | 
 pins 2 & 3 closed  | 
| 
 Flash BIOS recovery mode  | 
 W9  | 
 pins 1 & 2 closed  | |
| 
 »  | 
 Flash BIOS write protect disabled  | 
 W10  | 
 Closed  | 
| 
 Flash BIOS write protect enabled  | 
 W10  | 
 Open  | |
| 
 »  | 
 CMOS memory normal operation  | 
 W17  | 
 pins 1 & 2 closed  | 
| 
 CMOS memory clear  | 
 W17  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Monitor type select color  | 
 W20  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 W20  | 
 Open  | |
| 
 »  | 
 PS/2 mouse installed  | 
 W21  | 
 Closed  | 
| 
 PS/2 mouse not installed  | 
 W21  | 
 Open  | |
| 
 »  | 
 Factory configured - do not alter  | 
 W32  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W33  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W34  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W35  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W36  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W37  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W39  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 On board VGA enabled  | 
 W40  | 
 Open  | 
| 
 On board VGA disabled  | 
 W40  | 
 Closed  | |
| 
 »  | 
 Factory configured - do not alter  | 
 W41  | 
 Closed  | 
| 
 »  | 
 VGA hardware enabled  | 
 W42  | 
 Open  | 
| 
 VGA hardware disabled  | 
 W42  | 
 Closed  | |
| 
 »  | 
 Factory configured - do not alter  | 
 W43  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W44  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W45  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 W46  | 
 pins 2 & 3 closed  | 
| 
 Note: The location of W46 is unidentified.  | |||
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 8MB  | 
 (2) 1M x 36  | 
 NONE  | 
| 
 16MB  | 
 (2) 1M x 36  | 
 (2) 1M x 36  | 
| 
 16MB  | 
 (2) 2M x 36  | 
 NONE  | 
| 
 24MB  | 
 (2) 2M x 36  | 
 (2) 1M x 36  | 
| 
 32MB  | 
 (2) 4M x 36  | 
 NONE  | 
| 
 32MB  | 
 (2) 2M x 36  | 
 (2) 2M x 36  | 
| 
 40MB  | 
 (2) 4M x 36  | 
 (2) 1M x 36  | 
| 
 48MB  | 
 (2) 4M x 36  | 
 (2) 2M x 36  | 
| 
 64MB  | 
 (2) 8M x 36  | 
 NONE  | 
| 
 64MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 72MB  | 
 (2) 8M x 36  | 
 (2) 1M x 36  | 
| 
 80MB  | 
 (2) 8M x 36  | 
 (2) 2M x 36  | 
| 
 96MB  | 
 (2) 8M x 36  | 
 (2) 4M x 36  | 
| 
 128MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 VRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 1MB  | 
 (2) 256K x 16  | 
 NONE  | 
| 
 2MB  | 
 (2) 256K x 16  | 
 (2) 256K x 16  | 
| 
 Note: Bank 0 is factory installed and is not configurable.  | ||
| 
 CACHE CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 256KB  | 
 (8) 32K x 8  | 
 NONE  | 
| 
 512KB  | 
 (8) 32K x 8  | 
 (8) 32K x 8  | 
| 
 Note: Bank 0 is factory installed and is not configurable.  | ||
| 
 CACHE JUMPER CONFIGURATION  | |||
| 
 Size  | 
 W6  | 
 W7  | 
 W8  | 
| 
 256KB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 512KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 CPU SPEED CONFIGURATION  | ||||
| 
 Speed  | 
 W3  | 
 W4  | 
 W5  | 
 W38  | 
| 
 75MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 90MHz  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 100MHz  | 
 Open  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 Note: The location of W38 is unidentified.  | ||||
| 
 CPU CLOCK SPEED CONFIGURATION  | |
| 
 Speed  | 
 W2  | 
| 
 1.5x  | 
 Open  | 
| 
 2x  | 
 Closed  | 
| 
 DMA CONFIGURATION  | ||
| 
 DMA  | 
 W22  | 
 W23  | 
| 
 None  | 
 Open  | 
 Open  | 
| 
 DMA 1  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 DMA 3  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 DMA CONFIGURATION  | ||
| 
 DMA  | 
 W25  | 
 W26  | 
| 
 None  | 
 Open  | 
 Open  | 
| 
 DMA 6  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 DMA 7  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 PCI CONFIGURATION  | |||||
| 
 IDE 1 IRQ  | 
 IDE 2 IRQ  | 
 W24  | 
 W28  | 
 W29  | |
| » | 
 IRQ 14  | 
 IRQ 15  | 
 pins 2 & 3 closed  | 
 Open  | 
 pins 1 & 2 closed  | 
| 
 None  | 
 None  | 
 Open  | 
 Open  | 
 Open  | |
| 
 None  | 
 IRQ 15  | 
 pins 2 & 3 closed  | 
 Open  | 
 Open  | |
| 
 PCI INT A  | 
 None  | 
 Open  | 
 Closed  | 
 Open  | |
| 
 PCI INT A  | 
 IRQ 15  | 
 pins 2 & 3 closed  | 
 Closed  | 
 Open  | |
| 
 IRQ 14  | 
 None  | 
 Open  | 
 Open  | 
 pins 1 & 2 closed  | |