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 | |