PC BRAND
VALUE SERIES 486
|
Processor |
80386DX/80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256/1024KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Parallel port, serial ports (2), VGA port, VGA feature connector, floppy drive interface, IDE interface, game interface, riser slot |
|
NPU Options |
80387DX/3167/4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
VGA port |
CN1 |
IDE interface |
PL6 |
|
Parallel port |
CN2 |
Reset switch |
PL9 |
|
Serial port 1 |
CN3 |
Turbo LED |
PL12 |
|
Serial port 2 |
CN4 |
IDE interface LED |
PL14 |
|
Game interface |
PL3 |
VGA feature connector |
PL19 |
|
Floppy drive interface |
PL5 |
Riser Card |
SL1 |
|
Note: The location of jumpers PL9, PL12, PL14 are unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
JP1 |
N/A |
|
|
Factory configured - do not alter |
JP2 |
N/A |
|
|
Factory configured - do not alter |
JP3 |
N/A |
|
|
Factory configured - do not alter |
JP3 |
N/A |
|
|
Factory configured - do not alter |
JP4 |
N/A |
|
|
Factory configured - do not alter |
JP5 |
N/A |
|
|
Factory configured - do not alter |
JP6 |
N/A |
|
|
Factory configured - do not alter |
JP7 |
N/A |
|
|
Factory configured - do not alter |
JP8 |
N/A |
|
|
Factory configured - do not alter |
JP9 |
N/A |
|
|
Factory configured - do not alter |
JP10 |
N/A |
|
|
Factory configured - do not alter |
JP11 |
N/A |
|
|
Factory configured - do not alter |
JP12 |
N/A |
|
|
Factory configured - do not alter |
JP13 |
N/A |
|
|
Factory configured - do not alter |
JP14 |
N/A |
|
|
Factory configured - do not alter |
JP15 |
N/A |
|
|
Factory configured - do not alter |
JP16 |
N/A |
|
|
Factory configured - do not alter |
JP17 |
N/A |
|
|
Factory configured - do not alter |
JP18 |
N/A |
|
|
Factory configured - do not alter |
JP19 |
N/A |
|
|
Factory configured - do not alter |
JP20 |
N/A |
|
|
Factory configured - do not alter |
JP21 |
N/A |
|
|
Factory configured - do not alter |
JP22 |
N/A |
|
|
Factory configured - do not alter |
JP23 |
N/A |
|
|
Factory configured - do not alter |
JP24 |
N/A |
|
|
Factory configured - do not alter |
JP25 |
N/A |
|
|
Factory configured - do not alter |
JP26 |
N/A |
|
|
Factory configured - do not alter |
JP27 |
N/A |
|
|
Factory configured - do not alter |
JP28 |
N/A |
|
|
External speaker enabled |
PL20 |
pins 2 & 3 closed |
|
External speaker disabled |
PL20 |
pins 1 & 2 closed | |
|
|
System security enabled |
W4 |
Closed |
|
System security disabled |
W4 |
Open | |
|
|
Game port enabled |
W13 |
Open |
|
Game port disabled |
W13 |
Closed | |
|
|
Floppy drive interface enabled |
W19 |
pins 1 & 2 closed |
|
Floppy drive interface disabled |
W19 |
pins 2 & 3 closed | |
|
|
IDE interface enabled |
W20 |
pins 1 & 2 closed |
|
IDE interface disabled |
W20 |
pins 2 & 3 closed | |
|
|
External speaker enabled |
W28 |
pins 2 & 3 closed |
|
External speaker disabled |
W28 |
pins 1 & 2 closed | |
|
USER CONFIGURABLE SETTINGS (CONT) | |||
|
Function |
Jumper |
Position | |
|
|
80486 burst mode select 2-1-1-1 |
W44 |
Open |
|
80486 burst mode select 3-2-2-2 |
W44 |
Closed | |
|
|
Cache wait state select 0 wait states |
W45 |
Closed |
|
Cache wait state select 1 wait state |
W45 |
Open | |
|
|
Parallel port IRQ select IRQ5 |
W49 |
pins 2 & 3 closed |
|
Parallel port IRQ select IRQ7 |
W49 |
pins 1 & 2 closed | |
|
|
On board VGA wait state select 0 wait states |
W55 |
Closed |
|
On board VGA wait state select 1 wait state |
W55 |
Open | |
|
|
Factory configured - do not alter |
W56 |
N/A |
|
Note: The location of jumpers PL 20, W28, W44, & W45 are unidentified. | |||
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
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) 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 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 128K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
W18 |
W26 |
W30 |
W31 |
W32 |
|
None |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
|
64KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
128KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
|
128KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
|
256KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
|
1MB |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
|
CACHE JUMPER CONFIGURATION (CONT) | |||||
|
Size |
W33 |
W34 |
W35 |
W36 |
W37 |
|
None |
Open |
1 & 2 |
Open |
Open |
Open |
|
64KB |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
|
128KB |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
1 & 2 |
|
128KB |
Open |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
|
CACHE JUMPER CONFIGURATION (CONT) | |||||
|
Size |
W38 |
W39 |
W40 |
W41 |
W42 |
|
None |
Open |
Open |
Open |
Open |
Open |
|
64KB |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
Open |
|
128KB |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
128KB |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
Closed |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
Open |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
Open |
|
Note: Pins designated should be in the closed position. | |||||
|
CACHE JUMPER CONFIGURATION (CONT) | ||||
|
Size |
W43 |
W46 |
W68 |
W69 |
|
None |
Open |
Open |
Open |
Open |
|
64KB |
Closed |
Open |
Open |
Open |
|
128KB |
Open |
Open |
Open |
pins 1 & 2 closed |
|
128KB |
Closed |
Open |
Open |
Open |
|
256KB |
Closed |
Open |
Open |
pins 2 & 3 closed |
|
1MB |
Closed |
Open |
Open |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | |||||
|
Type |
W48 |
W54 |
W57 |
W60 |
W61 |
|
80386DX-40 |
2 & 3 |
1 & 2 |
Closed |
1 & 2 |
2 & 3 |
|
80486SX-25 |
3 & 4 |
2 & 3 |
Open |
2 & 3 |
1 & 2 |
|
80486DX-33 |
3 & 4 |
2 & 3 |
Closed |
1 & 2 |
2 & 3 |
|
80486DX2-50 |
3 & 4 |
2 & 3 |
Closed |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION (CONT) | ||||
|
Type |
W62 |
W63 |
W64 |
W65 |
|
80386DX-40 |
pins 2 & 3 closed |
Open |
pins 1 & 2 closed |
Closed |
|
80486SX-25 |
pins 1 & 2 closed |
Closed |
pins 2 & 3 closed |
Open |
|
80486DX-33 |
pins 2 & 3 closed |
Closed |
pins 2 & 3 closed |
Open |
|
80486DX2-50 |
pins 2 & 3 closed |
Closed |
pins 2 & 3 closed |
Open |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU TYPE CONFIGURATION (CONT) | ||||
|
Type |
W66 |
W67 |
W70 |
W71 |
|
80386DX-40 |
Open |
Open |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
80486SX-25 |
Closed |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DX-33 |
Closed |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DX2-50 |
Closed |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION | |
|
Speed |
W47 |
|
1x |
Closed |
|
2x |
Open |
|
PARALLEL PORT CONFIGURATION | ||
|
Setting |
W21 |
W29 |
|
LPT1 enabled |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
LPT2 disabled |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Note: The location of W29 is unidentified. | ||
|
SERIAL PORT 1 CONFIGURATION | ||
|
Setting |
W17 |
W22 |
|
COM1 enabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
COM1 disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
SERIAL PORT 2 CONFIGURATION | ||
|
Setting |
W15 |
W16 |
|
COM2 enabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
COM2 disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
ON BOARD VGA CONFIGURATION | ||
|
Setting |
W14 |
W50 |
|
Enabled |
Open |
Closed |
|
Disabled |
Closed |
Open |
|
VRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 4 |
NONE |
|
1MB |
(2) 256K x 4 |
(2) 256K x 4 |
|
VRAM JUMPER CONFIGURATION | ||
|
Size |
W58 |
W59 |
|
512KB |
Closed |
Open |
|
1MB |
Open |
Open |
|
MISCELLANEOUS TECHNICAL NOTE |
|
Note: The location of pin 1 is unidentified. |