COMPUTREND SYSTEMS, INC.
VLB S14 (SIS486)
|
Processor |
80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DX2/80486DX2/SL80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
SIS |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256KB |
|
BIOS |
AMI/Phoenix |
|
Dimensions |
260mm x 221mm |
|
I/O Options |
Floppy drive interface, game interface, green PC connector, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Game interface |
CN1 |
Power LED & keylock |
JFP pins 1 - 5 |
|
PS/2 mouse port |
CN2 |
Speaker |
JFP pins 7 - 10 |
|
Serial port 1 |
CN3 |
Turbo LED |
JFP pins 12 & 13 |
|
Serial port 2 |
CN4 |
Turbo switch |
JFP pins 15 - 17 |
|
Parallel port |
CN5 |
Reset switch |
JFP pins 19 & 20 |
|
VGA port |
CN6 |
IDE interface LED |
JFPA |
|
Floppy drive interface |
CN7 |
Green PC connector (monitor) |
JG1 |
|
VGA feature connector |
CN8 |
Green PC LED |
JG2 |
|
IDE interface |
CN9 |
Green PC connector |
JG3 |
|
External battery |
JB |
Riser slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Battery type select internal |
JB |
Pins 2 & 3 closed | |
|
Battery type select external |
JB |
Closed | |
|
Serial port 1 select COM1 |
JCOM1 |
Pins 1 & 2 closed | |
|
Serial port 1 select COM3 |
JCOM1 |
Pins 2 & 3 closed | |
|
Serial port 2 select COM2 |
JCOM2 |
Pins 1 & 2 closed | |
|
Serial port 2 select COM4 |
JCOM2 |
Pins 2 & 3 closed | |
|
Floppy drive interface enabled |
JFDD |
Pins 1 & 2 closed | |
|
Floppy drive interface disabled |
JFDD |
Pins 2 & 3 closed | |
|
Game port enabled |
JGAME |
Pins 1 & 2 closed | |
|
Game port disabled |
JGAME |
Pins 2 & 3 closed | |
|
IDE interface enabled |
JHDD |
Pins 1 & 2 closed | |
|
IDE interface disabled |
JHDD |
Pins 2 & 3 closed | |
|
Parallel port select LPT1 |
JPP1 |
Pins 1 & 2 closed | |
|
Parallel port select LPT2 |
JPP1 |
Pins 2 & 3 closed | |
|
Parallel port select IRQ7 |
JPP2 |
Pins 1 & 2 closed | |
|
Parallel port select IRQ5 |
JPP2 |
Pins 2 & 3 closed | |
|
On board VGA enabled |
JVGA |
Pins 1 & 2 closed | |
|
On board VGA disabled |
JVGA |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
None |
None |
None |
|
2MB |
(1) 512K x 36 |
None |
None |
None |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
None |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
4MB |
(1) 512K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
None |
None |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
None |
None |
|
5MB |
(1) 256K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
None |
|
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
None |
None |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
6MB |
(1) 1M x 36 |
(1) 512K x 36 |
None |
None |
|
8MB |
(1) 2M x 36 |
None |
None |
None |
|
8MB |
(1) 1M x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
9MB |
(1) 2M x 36 |
(1) 256K x 36 |
None |
None |
|
9MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
9MB |
(1) 256K x 36 |
(1) 2M x 36 |
None |
None |
|
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
(1) 2M x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
None |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
None |
None |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
None |
None |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
16MB |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
None |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
17MB |
(1) 4M x 36 |
(1) 256K x 36 |
None |
None |
|
18MB |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
20MB |
(1) 4M x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
None |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
None |
None |
|
20MB |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
20MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
None |
|
32MB |
(1) 8M x 36 |
None |
None |
None |
|
32MB |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
35MB |
(1) 8M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
36MB |
(1) 8M x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
None |
|
36MB |
(1) 8M x 36 |
(1) 1M x 36 |
None |
None |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
36MB |
(1) 1M x 36 |
(1) 8M x 36 |
None |
None |
|
40MB |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
None |
None |
|
40MB |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
40MB |
(1) 2M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
40MB |
(1) 2M x 36 |
(1) 8M x 36 |
None |
None |
|
44MB |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 8M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
|
48MB |
(1) 8M x 36 |
(1) 4M x 36 |
None |
None |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
None |
None |
|
49MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
50MB |
(1) 512K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
56MB |
(1) 8M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
56MB |
(1) 2M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
None |
None |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
72MB |
(1) 2M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
|
80MB |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
80MB |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
|
96MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
None |
|
98MB |
(1) 512K x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M 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/16K/32K x 8 |
|
256KB (A) |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K/32K x 8 |
|
256KB (B) |
(4) 64K x 8 |
None |
(1) 16K/32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JS1 |
JS2 |
JS3 |
|
128KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
256KB (A) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
256KB (B) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
JC2 |
JC3 |
JC4 |
JC5 |
|
Cyrix |
2 & 3, 5 & 6 |
2 & 3, 5 & 6 |
2 & 3, 5 & 6 |
2 & 3, 5 & 6 |
|
AMD |
6 & 7 |
6 & 7 |
6 & 7 |
6 & 7 |
|
Intel |
6 & 7 |
6 & 7 |
6 & 7 |
6 & 7 |
|
Intel SL-series |
1 & 2, 6 & 7 |
1 & 2, 6 & 7 |
1 & 2, 6 & 7 |
1 & 2, 6 & 7 |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU TYPE CONFIGURATION | ||
|
Type |
JC6 |
JC7 |
|
Cyrix |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
AMD |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
Intel |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | |
|
Type |
JC1 |
|
SX |
Pins 2 & 3, 5 & 6, 7 & 8 closed |
|
DX |
Pins 4 & 7, 2 & 5, 6 & 9 closed |
|
DX2 |
Pins 1 & 4, 2 & 5, 6 & 9 closed |
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
JK1 |
JK2 |
JK3 |
JK4 |
|
25MHz |
Pins 2 & 3 closed |
Closed |
Closed |
Closed |
|
33MHz |
Pins 1 & 2 closed |
Closed |
Open |
Closed |
|
40MHz |
Pins 1 & 2 closed |
Closed |
Closed |
Open |
|
50iMHz |
Pins 2 & 3 closed |
Closed |
Closed |
Closed |
|
50MHz |
Pins 1 & 2 closed |
Open |
Closed |
Closed |
|
66iMHz |
Pins 1 & 2 closed |
Closed |
Open |
Closed |
|
CPU VOLTAGE CONFIGURATION | |
|
Voltage |
JP24 |
|
3.3v |
Pins 7 & 8, 9 & 10 closed |
|
5v |
Pins 1 & 2, 3 & 4 closed |
|
VIDEO MEMORY CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
512KB |
(1) 256K x 16 |
None |
None |
|
1MB |
(1) 256K x 16 |
(1) 256K x 16 |
None |
|
2MB |
(1) 256K x 16 |
(1) 256K x 16 |
(2) 256K x 16 |