COMPUTREND SYSTEMS, INC.
PCI486 AL2
|
Processor |
UMC486SX/80486SX/SL80486SX/UMC486DX/AM486DX/80486DX/ SL80486DX/CX486DX2/AM486DX2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/P24D/P24T |
|
Processor Speed |
25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/100(internal)MHz |
|
Chip Set |
ALI |
|
Max. Onboard DRAM |
64MB |
|
Cache |
128/256/512KB |
|
BIOS |
AMI |
|
Dimensions |
270mm x 220mm |
|
I/O Options |
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Turbo LED |
JFP pins 12 & 13 |
|
Serial port 2 |
CN2 |
Turbo switch |
JFP pins 15 - 17 |
|
Parallel port |
CN3 |
Reset switch |
JFP pins 19 & 20 |
|
Floppy drive interface |
CN4 |
IDE interface LED |
JFPA |
|
IDE interface 2 |
CN5 |
Chassis fan power |
JFAN |
|
IDE interface 1 |
CN6 |
Green PC connector (monitor) |
JG1 |
|
External battery |
JB1 |
Green PC LED |
JG2 |
|
Power LED & keylock |
JFP pins 1 - 5 |
Green PC connector |
JG3 |
|
Speaker |
JFP pins 7 - 10 |
32-bit PCI slots |
PC1 - PC3 |
|
Note: The location of JFAN is unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Battery type select internal |
JB1 |
Pins 2 & 3 closed |
|
Battery type select external |
JB1 |
Closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
None |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
28MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
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 |
|
128KB |
(4) 32K x 8 |
None |
(1) 8K/16K/32 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 |
|
512KB |
(4) 128K x 8 |
None |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JS1 |
JS2 |
JS3 |
|
128KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
256KB (A) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
256KB (B) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
512KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
JC1 |
JC2 |
JC3 |
JC4 |
|
UMC486SX |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
|
80486SX |
Open |
2 & 3 |
Open |
Open |
|
SL80486SX |
Open |
2 & 3 |
Open |
2 & 3 |
|
UMC486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
1 & 2 |
|
AM486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
80486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
SL80486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
|
CX486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
4 & 5 |
4 & 5 |
|
AM486DX2 (V8B) |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 5 & 6 |
2 & 3 |
|
AM486DX2 (V8T) |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
AM486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
80486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
SL80486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
|
SL80486DX2 (OD) |
1 & 2 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
|
AM486DX4 (V8B) |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 5 & 6 |
2 & 3 |
|
AM486DX4 (V8T) |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
|
80486DX4 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
|
P24D |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3 |
|
P24T |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
JC5 |
JC6 |
JC7 |
JC8 |
JC9 |
|
UMC486SX |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
80486SX |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
SL80486SX |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
UMC486DX |
1 & 2 |
1 & 2 |
1 & 2 |
Closed |
Open |
|
AM486DX |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
80486DX |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
SL80486DX |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
CX486DX2 |
4 & 5 |
4 & 5 |
1 & 2 |
Closed |
Open |
|
AM486DX2 (V8B) |
2 & 3 |
2 & 3 |
2 & 3, 4 & 5 |
Closed |
Open |
|
AM486DX2 (V8T) |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
AM486DX2 |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
80486DX2 |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
SL80486DX2 |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
SL80486DX2 (OD) |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
AM486DX4 (V8B) |
2 & 3 |
2 & 3 |
2 & 3, 4 & 5 |
Closed |
Open |
|
AM486DX4 (V8T) |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
|
80486DX4 |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
|
P24D |
2 & 3 |
2 & 3 |
2 & 3, 4 & 5 |
Closed |
Open |
|
P24T |
2 & 3 |
2 & 3 |
2 & 3, 4 & 5 |
Closed |
Open |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JK1 |
JK2 |
JK3 |
|
25MHz |
Open |
Pins 2 & 3 closed |
Open |
|
33MHz |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
Open |
|
40MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
|
50iMHz |
Open |
Pins 2 & 3 closed |
Open |
|
66iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
Open |
|
75iMHz |
Open |
Pins 2 & 3 closed |
Open |
|
80iMHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
|
100iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
Open |
|
CPU VOLTAGE CONFIGURATION | |||
|
Voltage |
J4 |
JP8 | |
|
3.45v |
Pins 4 & 10, 5 & 11, 6 & 12 closed |
Open | |
|
4v |
Pins 4 & 10, 5 & 11, 6 & 12 closed |
Closed | |
| » |
5v |
Pins 1 & 7, 2 & 8, 3 & 9 closed |
Open |
|
DMA CONFIGURATION | ||||
|
DMA |
JP17 |
JP18 |
JP23 |
JP24 |
|
DMA 1 |
Closed |
Closed |
Open |
Open |
|
DMA 3 |
Open |
Open |
Closed |
Closed |