UNIDENTIFIED
PM486PU-S3 PCI
Processor |
CX486SX/UMC486SX/80486SX/CX486DX/AM486DX/80486DX/CX486DX2/ AM486DX2/80486DX2/CX486DX4/AM486DX4/AM486DX4(WB)/80486DX4/ P24D/Pentium Overdrive/CXM1 |
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz |
Chip Set |
UMC |
Max. Onboard DRAM |
64MB |
Cache |
128/256/512KB |
BIOS |
Unidentified |
Dimensions |
254mm x 218mm |
I/O Options |
32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
CN1 |
Green PC connector |
JP1 |
Serial port 2 |
CN2 |
Turbo switch |
JP2 |
Serial port 1 |
CN3 |
Turbo LED |
JP3 |
Parallel port |
CN4 |
Reset switch |
JP4 |
Floppy drive interface |
CN5 |
Speaker |
JP5 |
IDE interface 2 |
CN6 |
Power LED & keylock |
JP6 |
IDE interface 1 |
CN7 |
32-bit PCI slots |
PC1 - PC3 |
IDE interface LED |
J1 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
J20 |
N/A |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
1MB |
(1) 256K x 36 |
NONE |
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
2MB |
(1) 512K x 36 |
NONE |
3MB |
(1) 256K x 36 |
(1) 512K x 36 |
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
4MB |
(1) 1M x 36 |
NONE |
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
6MB |
(1) 512K x 36 |
(1) 1M x 36 |
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
8MB |
(1) 2M x 36 |
NONE |
10MB |
(1) 512K x 36 |
(1) 2M x 36 |
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
24MB |
(1) 2M x 36 |
(1) 4M x 36 |
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
32MB |
(1) 8M x 36 |
NONE |
36MB |
(1) 1M x 36 |
(1) 8M x 36 |
40MB |
(1) 2M x 36 |
(1) 8M x 36 |
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
CACHE CONFIGURATION | ||
Size |
Bank 0 |
TAG |
128KB |
(4) 32K x 8 |
(1) 8K or (1) 32K x 8 |
256KB |
(4) 64K x 8 |
(1) 32K x 8 |
512KB |
(4) 128K x 8 |
(1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |
Size |
J8 |
128KB |
Open |
256KB |
pins 1 & 2 closed |
512KB |
pins 1 & 2, 3 & 4 closed |
CPU TYPE CONFIGURATION | |||||
Type |
J2 |
J3 |
J5 |
J6 |
J7 |
CX486SX |
2 & 3 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
3 & 4 |
UMC486SX |
1 & 2 |
2 & 3 |
Open |
Open |
1 & 2 |
80486SX |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4 |
CX486DX |
2 & 3 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
3 & 4 |
AM486DX |
1 & 2 |
2 & 3 |
Open |
Open |
1 & 2 |
80486DX |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4 |
CX486DX2 |
2 & 3 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
3 & 4 |
AM486DX2 |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
80486DX2 |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4 |
CX486DX4 |
2 & 3 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
3 & 4 |
AM486DX4 |
1 & 2 |
2 & 3 |
Open |
Open |
1 & 2 |
AM486DX4 (WB) |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
80486DX4 |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4 |
P24D |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4 |
P24T |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4, 5 & 6 |
CXM1 |
1 & 2 |
1 & 2 |
Open |
2 & 3, 4 & 5 |
3 & 4 |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION (CONT) | |||||
Type |
J9 |
J10 |
J12 |
J13 |
J14 |
CX486SX |
Open |
2 & 3 |
Open |
Open |
Open |
UMC486SX |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
Open |
80486SX |
Open |
Open |
Open |
Open |
Open |
CX486DX |
3 & 4 |
2 & 3 |
Open |
Open |
Open |
AM486DX |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
Open |
80486DX |
3 & 4 |
Open |
Open |
Open |
Open |
CX486DX2 |
3 & 4 |
2 & 3 |
Open |
Open |
Open |
AM486DX2 |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
Open |
80486DX2 |
3 & 4 |
Open |
Open |
Open |
Open |
CX486DX4 |
3 & 4 |
2 & 3 |
Open |
Open |
Open |
AM486DX4 |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
Open |
AM486DX4 (WB) |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
Open |
80486DX4 |
3 & 4 |
Open |
Open |
Open |
Open |
P24D |
3 & 4 |
Open |
Closed |
Closed |
Closed |
P24T |
2 & 3 |
1 & 2 |
Open |
Open |
Open |
CXM1 |
3 & 4 |
Open |
Closed |
Closed |
Closed |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION (CONT) | ||||||
Type |
J15 |
J16 |
J17 |
J18 |
J19 |
J21 |
CX486SX |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
UMC486SX |
Open |
Open |
Open |
2 & 3 |
Open |
2 & 3 |
80486SX |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
2 & 3 |
CX486DX |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
AM486DX |
Open |
Open |
Open |
2 & 3 |
Open |
1 & 2, 3 & 4 |
80486DX |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
CX486DX2 |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
AM486DX2 |
Open |
Open |
Open |
2 & 3 |
Open |
1 & 2, 3 & 4 |
80486DX2 |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
CX486DX4 |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2, 3 & 4 |
AM486DX4 |
Open |
Open |
Open |
2 & 3 |
Open |
1 & 2, 3 & 4 |
AM486DX4 (WB) |
Open |
Open |
Open |
2 & 3 |
Open |
1 & 2, 3 & 4 |
80486DX4 |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
P24D |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
P24T |
Open |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
CXM1 |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Note: Pins designated should be in the closed position. |
CPU SPEED CONFIGURATION | |||
Speed |
J24 pins 1 & 2 |
J24 pins 3 & 4 |
J24 pins 5 & 6 |
20MHz |
Open |
Open |
Open |
25MHz |
Open |
Open |
Closed |
33MHz |
Closed |
Closed |
Closed |
40MHz |
Open |
Closed |
Closed |
50iMHz |
Open |
Open |
Closed |
50MHz |
Closed |
Open |
Open |
66iMHz |
Closed |
Closed |
Closed |
75iMHz |
Open |
Open |
Closed |
80iMHz |
Open |
Closed |
Closed |
100iMHz |
Closed |
Closed |
Closed |
CPU VOLTAGE CONFIGURATION | |
Voltage |
J11 |
3.3v |
pins 2 & 3 closed |
3.45v |
pins 2 & 3 closed |
4v |
pins 2 & 3 closed |
5v |
pins 1 & 2 closed |