EPOX COMPUTER CO., LTD.
P55KTX
Device Type |
Mainboard |
Processor |
CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/AM K5/ AM K6/Pentium/Pentium MMX |
Processor Speed |
90/100/120/133/150/166/200/233/266/300/333MHz |
Chip Set |
VIA |
Video Chip Set |
None |
Maximum Onboard Memory |
256MB (SDRAM supported) |
Maximum Video Memory |
None |
Cache |
512KB |
BIOS |
Award |
Dimensions |
305mm x 244mm |
I/O Options |
32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector, ATX power connector |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
ATX power connector |
ATX |
CPU fan power |
J6 |
USB connector |
CN1 |
Power LED & keylock |
J12A |
Serial port 2 |
CN2 |
Speaker |
J12B |
Parallel port |
CN3 |
Reset switch |
J12C |
PS/2 mouse port |
CN4 |
Green PC LED |
J12D |
Serial port 1 |
CN5 |
Turbo LED |
J12E |
Floppy drive interface |
CN6 |
IDE interface LED |
J12F |
IDE interface 1 |
CN7 |
Soft off power supply |
J12G |
IDE interface 2 |
CN8 |
32-bit PCI slots |
PC1 PC4 |
IR connector |
J3 | ||
Note: The location of J3 is unidentified. |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
Keyboard power on disabled |
J1 |
Pins 1 & 2 closed | |
Keyboard power on enabled |
J1 |
Pins 2 & 3 closed |
DIMM CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
8MB |
(1) 1M x 64 |
None |
None |
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
None |
16MB |
(1) 2M x 64 |
None |
None |
24MB |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
None |
32MB |
(1) 4M x 64 |
None |
None |
48MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
None |
64MB |
(1) 8M x 64 |
None |
None |
96MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
None |
128MB |
(1) 16M x 64 |
None |
None |
164MB |
(1) 16M x 64 |
(1) 1M x 64 |
None |
144MB |
(1) 16M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
None |
160MB |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
DIMM CONFIGURATION (CONT) | |||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
None |
192MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
None |
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
None |
Note: Board accepts SDRAM memory. |
CACHE CONFIGURATION | |
Size |
Bank 0 |
512KB |
(1) 64K x 64 |
CPU SPEED SELECTION (CX 6X86L) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
150MHz |
60MHz |
2.5x |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
166MHz |
66MHz |
2.5x |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
200MHz |
75MHz |
3x |
1 & 2 |
1 & 2 |
2 & 3 |
3 & 4 |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (IBM 6X86L) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
150MHz |
60MHz |
2.5x |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
166MHz |
66MHz |
2.5x |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
200MHz |
75MHz |
3x |
1 & 2 |
1 & 2 |
2 & 3 |
3 & 4 |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (CX 6X86MX) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
166MHz |
66MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
166MHz |
60MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
200MHz |
75MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
3 & 4 |
200MHz |
66MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
233MHz |
75MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
3 & 4 |
233MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
266MHz |
75MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
3 & 4 |
266MHz |
66MHz |
3.5x |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (IBM 6X86MX) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
166MHz |
66MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
166MHz |
60MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
200MHz |
75MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
3 & 4 |
200MHz |
66MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
233MHz |
75MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
3 & 4 |
233MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
266MHz |
75MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
3 & 4 |
266MHz |
66MHz |
3.5x |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (AM K5) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
90MHz |
60MHz |
1.5x |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
100MHz |
66MHz |
1.5x |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
120MHz |
60MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
133MHz |
66MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
150MHz |
60MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
166MHz |
66MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
200MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (AM K6) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
166MHz |
66MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
200MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
233MHz |
66MHz |
3.5x |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
266MHz |
66MHz |
4x |
2 & 3 |
1 & 2 |
2 & 3 |
Open |
300MHz |
66MHz |
4.5x |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
333MHz |
66MHz |
5x |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (INTEL) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
90MHz |
60MHz |
1.5x |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
100MHz |
66MHz |
1.5x |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
120MHz |
60MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
133MHz |
66MHz |
2x |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
150MHz |
60MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
166MHz |
66MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
200MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
CPU SPEED SELECTION (INTEL MMX) | ||||||
CPU speed |
Clock speed |
Multiplier |
J7 |
J8 |
J9 |
J11 |
166MHz |
66MHz |
2.5x |
1 & 2 |
2 & 3 |
2 & 3 |
Open |
200MHz |
66MHz |
3x |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
233MHz |
66MHz |
3.5x |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
266MHz |
66MHz |
4x |
2 & 3 |
1 & 2 |
2 & 3 |
Open |
300MHz |
66MHz |
4.5x |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
333MHz |
66MHz |
5x |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
CPU VOLTAGE SELECTION | |
Voltage |
J10 |
2.0v |
Pins 1 & 2 closed |
2.8v |
Pins 3 & 4 closed |
2.9v |
Pins 5 & 6 closed |
3.2v |
Pins 7 & 8 closed |
3.5v |
Pins 9 & 10 closed |