TRIGEM MICROSYSTEM, INC.
486/MV
|
Device Type |
Mainboard |
|
Processor |
80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Unidentified |
|
Maximum Onboard Memory |
40MB |
|
Maximum Video Memory |
1MB |
|
Cache |
64/128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), riser slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Parallel port |
CN1 |
Floppy drive interface |
CN5 |
|
Serial port |
CN2 |
IDE interface |
CN6 |
|
Serial port |
CN3 |
Riser slot |
SL1 |
|
PS/2 mouse port |
CN4 |
32-bit VESA local bus slot |
SL2 |
|
Note: CN1 CN6 are for general location purposes. The location may not be exact. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
C1 |
Unidentified |
|
|
Factory configured - do not alter |
C2 |
Unidentified |
|
|
Factory configured - do not alter |
J2 |
Unidentified |
|
|
Factory configured - do not alter |
J8 |
Unidentified |
|
|
Factory configured - do not alter |
J9 |
Unidentified |
|
|
CMOS memory normal operation |
J10 |
Pins 2 & 3 closed |
|
CMOS memory clear |
J10 |
Pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
J11 |
Unidentified |
|
|
Password enabled |
SW1/4 |
Off |
|
Password disabled |
SW1/4 |
On | |
|
|
Monitor type select color |
SW1/5 |
On |
|
Monitor type select monochrome |
SW1/5 |
Off | |
|
|
Cache disabled |
SW1/6 |
Off |
|
Cache enabled |
SW1/6 |
On | |
|
SIMM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
4MB |
None |
None |
None |
|
8MB |
4MB |
(1) 1M x 36 |
None |
None |
|
12MB |
4MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
16MB |
4MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
20MB |
4MB |
(1) 4M x 36 |
None |
None |
|
24MB |
4MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
|
36MB |
4MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
40MB |
4MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
Note: Bank 0 is factory installed and is not configurable. | ||||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
Unidentified |
|
128KB |
(4) 32K x 8 |
None |
Unidentified |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
Unidentified |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
J4 |
J5 |
J6 |
J7 |
|
None |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
64KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
128KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
256KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
VIDEO MEMORY CONFIGURATION |
|
Note: Board accepts 512KB/1MB of video memory. The location and chip sizes are unidentified. |
|
CPU SPEED SELECTION | |||
|
Speed |
SW1/1 |
SW1/2 |
SW1/3 |
|
25MHz |
Off |
Off |
On |
|
33MHz |
On |
On |
Off |
|
50iMHz |
Off |
Off |
On |
|
66iMHz |
On |
On |
Off |
|
CPU TYPE SELECTION | |
|
Type |
J1 |
|
80486SX |
Pins 2 & 3 closed |
|
80486DX |
Pins 1 & 2 closed |
|
80486DX2 |
Pins 1 & 2 closed |