MICRONICS COMPUTERS, INC.
M4PE (VER. 2A)
|
Processor |
80486SX/SL80486SX/80486DX/SL80486DX/80486DX2/SL80486DX2/ 80486DX4/Pentium Overdrive |
|
Processor Speed |
25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256/512KB |
|
BIOS |
Phoenix |
|
Dimensions |
355mm x 305mm |
|
I/O Options |
PS/2 mouse port, parallel port, serial ports (2), 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
J2 |
External battery |
W11 |
|
Speaker |
J5 |
Power LED & keylock |
W12 |
|
Parallel port |
J8 |
Reset switch |
W15 |
|
Floppy drive interface |
J9 |
Turbo switch |
W29 |
|
Serial port 2 |
J10 |
Turbo LED |
W38 |
|
Serial port 1 |
J11 |
IDE interface LED 1 |
W39 |
|
IDE interface 1 |
J21 |
IDE interface LED 2 |
W46 |
|
IDE interface 2 |
J22 |
32-bit PCI slots |
PC1 - PC3 |
|
Chassis fan power |
J102 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
IRQ jumper header disabled |
J101 |
Open |
|
IRQ jumper header enabled |
J101 |
Closed | |
|
|
Level 2 cache type select write back |
W1 |
pins 2 & 3 closed |
|
Level 2 cache type select write through |
W1 |
pins 1 & 2 closed | |
|
|
Cache type select write through |
W4 |
Open |
|
Cache type select write back |
W4 |
Closed | |
|
|
Factory configured - do not alter |
W6 |
pins 2 & 3 closed |
|
|
Factory configured - do not alter |
W8 |
Closed |
|
|
PS/2 mouse installed |
W10 |
Closed |
|
PS/2 mouse not installed |
W10 |
Open | |
|
|
DPU generates parity |
W17 |
pins 1 & 2 closed |
|
CPU generates parity |
W17 |
pins 2 & 3 closed | |
|
|
DPU forces parity error |
W18 |
pins 1 & 2 closed |
|
DPU does not force parity error |
W18 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
W19 |
Closed |
|
|
Cache installed |
W21 |
Open |
|
Cache not installed |
W21 |
Closed | |
|
|
Level 2 cache wait state 0 wait states |
W25 |
Open |
|
Level 2 cache wait state 1 wait state |
W25 |
Closed | |
|
|
PCI IDE IRQ14 enabled |
W35 |
Closed |
|
PCI IDE IRQ14 disabled |
W35 |
Open | |
|
|
PCI IDE INT A disabled |
W37 |
Closed |
|
PCI IDE INT A enabled |
W37 |
Open | |
|
|
PCI IDE IRQ15 disabled |
W38 |
Closed |
|
PCI IDE IRQ15 enabled |
W38 |
Open | |
|
|
ISA IDE IRQ select IRQ15 |
W42 |
pins 2 & 3 closed |
|
ISA IDE IRQ select IRQ14 |
W42 |
pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
W50 |
Open |
|
|
Parity check enabled |
W60 |
Closed |
|
Parity check disabled |
W60 |
Open | |
|
Note: The location of W60 is unidentified. | |||
|
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) 1M x 36 |
(1) 1M 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 CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
512KB |
NONE |
(4) 128K x 8 |
(1) 32K x 8 |
|
Note: Bank 0 is factory installed and is not configurable. If 512KB is used, the onboard cache is disabled. The location of the TAG is unidentified. | |||
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
W5 |
W22 |
W23 |
W51 |
|
128KB |
Open |
Closed |
Open |
Open |
|
256KB |
Closed |
Open |
Closed |
Open |
|
512KB |
Closed |
Open |
Open |
Closed |
|
CACHE TAG CONFIGURATION | ||
|
Size |
W24 |
W26 |
|
7-bit |
Open |
Closed |
|
8-bit |
Closed |
Closed |
|
9-bit |
Closed |
Open |
|
CPU TYPE CONFIGURATION | |||
|
Type |
W2 |
W3 |
W33 |
|
80486SX |
pins 2 & 3 closed |
Closed |
Open |
|
80486DX |
pins 1 & 2, 3 & 4 closed |
Closed |
Open |
|
80486DX2 |
pins 1 & 2, 3 & 4 closed |
Closed |
Open |
|
80486DX4 |
pins 1 & 2, 3 & 4 closed |
Closed |
Open |
|
80486DX4 (2x) |
pins 1 & 2, 3 & 4 closed |
Closed |
pins 2 & 3 closed |
|
Pentium Overdrive |
pins 1 & 2, 3 & 4 closed |
Open |
Open |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
W34 |
W45 |
W52 |
W53 |
|
Non SL-enhanced |
Open |
Open |
pins 1 & 2 closed |
Open |
|
SL-enhanced |
Closed |
Closed |
pins 2 & 3 closed |
Closed |
|
CPU SPEED CONFIGURATION | ||
|
Speed |
W16 |
W20 |
|
25MHz |
Open |
Closed |
|
33MHz |
Closed |
Open |
|
50iMHz |
Open |
Closed |
|
66iMHz |
Closed |
Open |
|
75iMHz |
Open |
Closed |
|
100iMHz |
Closed |
Open |
|
DMA CONFIGURATION | |||
|
DMA |
W43 |
W44 | |
|
PIO transfer |
Open |
Open | |
|
DMA 6 |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
DMA 7 |
pins 2 & 3 closed |
pins 2 & 3 closed | |