EFA CORPORATION
P55TPIO
|
Processor |
Pentium |
|
Processor Speed |
75/90/100/120/133/150/166MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
128MB |
|
Cache |
256/512KB |
|
BIOS |
Award |
|
Dimensions |
290mm x 220mm |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), VRM connector, cache slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Power LED & keylock |
J11 |
|
Serial port 2 |
CN2 |
IDE interface LED |
J12 |
|
Parallel port |
CN3 |
Green PC connector |
J13 |
|
Floppy drive interface |
CN4 |
Turbo LED |
J14 |
|
IDE interface 1 |
CN5 |
Turbo switch |
J15 |
|
IDE interface 2 |
CN6 |
Reset switch |
J16 |
|
VRM connector |
CN7 |
32-bit PCI slots |
PC1 - PC4 |
|
Speaker |
J10 |
Cache slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Flash BIOS voltage select 5v |
JP9 |
pins 1 & 2 closed |
|
Flash BIOS voltage select 12v |
JP9 |
pins 2 & 3 closed | |
|
|
CMOS memory normal operation |
JP19 |
Open |
|
CMOS memory clear |
JP19 |
Closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
2MB |
(2) 256K x 36 |
NONE |
|
4MB |
(2) 512K x 36 |
NONE |
|
4MB |
(2) 256K x 36 |
(2) 256K x 36 |
|
6MB |
(2) 512K x 36 |
(2) 256K x 36 |
|
6MB |
(2) 256K x 36 |
(2) 512K x 36 |
|
8MB |
(2) 1M x 36 |
NONE |
|
8MB |
(2) 512K x 36 |
(2) 512K x 36 |
|
10MB |
(2) 1M x 36 |
(2) 256K x 36 |
|
10MB |
(2) 256K x 36 |
(2) 1M x 36 |
|
12MB |
(2) 1M x 36 |
(2) 512K x 36 |
|
12MB |
(2) 512K x 36 |
(2) 1M x 36 |
|
16MB |
(2) 2M x 36 |
NONE |
|
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
|
18MB |
(2) 2M x 36 |
(2) 256K x 36 |
|
18MB |
(2) 256K x 36 |
(2) 2M x 36 |
|
20MB |
(2) 2M x 36 |
(2) 512K x 36 |
|
20MB |
(2) 512K x 36 |
(2) 2M x 36 |
|
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
|
24MB |
(2) 1M x 36 |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
NONE |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
|
34MB |
(2) 4M x 36 |
(2) 256K x 36 |
|
34MB |
(2) 256K x 36 |
(2) 4M x 36 |
|
36MB |
(2) 4M x 36 |
(2) 512K x 36 |
|
36MB |
(2) 512K x 36 |
(2) 4M x 36 |
|
40MB |
(2) 4M x 36 |
(2) 1M x 36 |
|
40MB |
(2) 1M x 36 |
(2) 4M x 36 |
|
48MB |
(2) 4M x 36 |
(2) 2M x 36 |
|
48MB |
(2) 2M x 36 |
(2) 4M x 36 |
|
64MB |
(2) 8M x 36 |
NONE |
|
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
|
66MB |
(2) 8M x 36 |
(2) 256K x 36 |
|
66MB |
(2) 256K x 36 |
(2) 8M x 36 |
|
68MB |
(2) 8M x 36 |
(2) 512K x 36 |
|
68MB |
(2) 512K x 36 |
(2) 8M x 36 |
|
72MB |
(2) 8M x 36 |
(2) 1M x 36 |
|
72MB |
(2) 1M x 36 |
(2) 8M x 36 |
|
DRAM CONFIGURATION (CONT) | ||
|
Size |
Bank 0 |
Bank 1 |
|
80MB |
(2) 8M x 36 |
(2) 2M x 36 |
|
80MB |
(2) 2M x 36 |
(2) 8M x 36 |
|
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
|
96MB |
(2) 4M x 36 |
(2) 8M x 36 |
|
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
|
Note: Board will also accept non-parity chips. | ||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
TAG |
SL1 |
|
256KB (A) |
(8) 32K x 8 |
(1) 32K x 8 |
Not installed |
|
256KB (B) |
NONE |
NONE |
Installed |
|
512KB (A) |
(8) 64K x 8 |
(1) 32K x 8 |
Not installed |
|
512KB (B) |
NONE |
NONE |
Installed |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
JP10 |
JP11 |
JP12 |
JP20 |
|
None |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
256KB (A) |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2, 3 & 4 closed |
|
256KB (B) |
Open |
Open |
Open |
Open |
|
512KB (A) |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2, 3 & 4 closed |
|
512KB (B) |
Open |
Open |
Open |
Open |
|
CACHE VOLTAGE CONFIGURATION | |
|
Voltage |
JP8 |
|
Mixed mode |
pins 1 & 2 closed |
|
3.3v |
pins 2 & 3 closed |
|
CPU CLOCK SPEED CONFIGURATION | |||
|
Speed |
JP6 |
JP7 |
JP18 |
|
50MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
60MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
66MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU CLOCK RATIO CONFIGURATION | ||
|
Core/bus ratio |
JP14 |
JP15 |
|
1.5 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
2 |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
2.5 |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
3 |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU VOLTAGE CONFIGURATION | |
|
Voltage |
JP17 |
|
3.3v |
pins 1 & 2 closed |
|
3.4v |
pins 2 & 3 closed |
|
3.5v |
pins 4 & 5 closed |
|
VRM CONFIGURATION | |
|
CPU type |
CN7 |
|
P54C |
pins 4 & 5, 6 & 7, 19 & 20, 21 & 22 closed |
|
P55C |
VRM installed |
|
Note: Pin 1 is shown for clarification purposes only. | |