MICRONICS COMPUTERS, INC.
MPOWER4 PLUS (VER.A)
|
Processor |
80486SX/ODP486SX/80486DX/80486DX2/Pentium Overdrive |
|
Processor Speed |
25/33/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
Micronics |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/128/256KB |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Parallel port |
J1 |
Video feature connector |
J31 |
|
Serial port 2 |
J2 |
VGA port |
J32 |
|
Serial port 1 |
J3 |
Turbo LED |
W18 |
|
Power LED & keylock |
J7 |
Turbo switch |
W19 |
|
PS/2 mouse port |
J10 |
Reset switch |
W20 |
|
IDE interface |
J26 |
IDE interface LED |
W21 |
|
Floppy drive interface |
J27 |
32-bit VESA Local bus slots |
SL1 |
|
Speaker |
J30 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
Cache select write back |
U61 |
Installed |
|
Cache select write through |
U61 |
Not installed | |
|
|
Real time clock installed |
W1 |
Closed |
|
Real time clock not installed |
W1 |
Open | |
|
|
Monitor type select color |
W2 |
Closed |
|
Monitor type select monochrome |
W2 |
Open | |
|
|
IRQ12 PS/2 mouse enabled |
W3 |
Closed |
|
PS/2 mouse disabled |
W3 |
Open | |
|
|
Parity enabled |
W4 |
Closed |
|
Parity disabled |
W4 |
Open | |
|
|
CMOS memory normal operation |
W5 |
Open |
|
CMOS memory clear |
W5 |
Closed | |
|
|
Super I/O enabled |
W7 |
Open |
|
Super I/O disabled |
W7 |
Closed | |
|
|
Flash BIOS write protect enabled |
W8 |
Open |
|
Flash BIOS write protect disabled |
W8 |
Closed | |
|
|
PQFP not installed |
W13 |
Open |
|
PQFP disabled by Overdrive processor |
W13 |
pins 1 & 2 closed | |
|
PQFP manually disabled |
W13 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
W15 |
pins 1 & 2 closed |
|
|
Factory configured - do not alter |
W31 |
Open |
|
|
Factory configured - do not alter |
W36 |
Open |
|
|
VGA IRQ9 disabled |
W303 |
Open |
|
VGA IRQ9 enabled |
W303 |
Closed | |
|
|
Factory configured - do not alter |
SW1/3 |
Off |
|
|
Factory configured - do not alter |
SW1/4 |
Off |
|
VPU chip disabled |
SW2/1 |
On | |
|
VPU chip enabled |
SW2/1 |
Off | |
|
Video RAMDAC at snooping mode |
SW2/2 |
On | |
|
Video RAMDAC at normal mode |
SW2/2 |
Off | |
|
VGA BIOS disabled |
SW2/3 |
On | |
|
VGA BIOS enabled |
SW2/3 |
Off | |
|
External speaker disabled |
SW2/4 |
On | |
|
External speaker enabled |
SW2/4 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
6MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
18MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
NONE |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||||
|
Size |
W10 |
W11 |
W16 |
W17 |
W22 |
W23 |
W24 |
|
64KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
|
128KB |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note:Pins designated should be in the closed position. | |||||||
|
CPU CONFIGURATION | |
|
Type |
W33 |
|
All other CPUs |
pins 1 & 2, 3 & 4 closed |
|
80486SX |
pins 2 & 3 closed |
|
80486SX2 |
pins 3 & 4 closed |
|
80486DX4 CONFIGURATION | ||
|
80486DX4 |
W32 |
W34 |
|
Disabled |
Open |
Open |
|
Enabled |
pins 1 & 2 closed |
pins 3 & 4 closed |
|
CPU SPEED CONFIGURATION | ||
|
Speed |
Switch 1/1 |
Switch 1/2 |
|
25MHz |
Off |
On |
|
33MHz |
On |
On |
|
50iMHz |
Off |
On |
|
66iMHz |
On |
On |
|
75iMHz |
Off |
On |
|
100iMHz |
On |
On |
|
DMA CHANNEL CONFIGURATION | ||
|
DMA Channel |
W98 |
W99 |
|
Channel 1 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Channel 2 |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
VRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(2) 512K x 8 |
NONE |
|
2MB |
(2) 512K x 8 |
(2) 256K x 8 |
|
Note: Bank 0 is factory installed and is not configurable. | ||