UNIDENTIFIED
P55-ET
Processor | Pentium |
Processor Speed | 75/90/100/120/133/150/166MHz |
Chip Set | Intel |
Video Chip Set | None |
Maximum Onboard Memory | 128MB (EDO supported) |
Maximum Video Memory | None |
Cache | 256/512KB |
BIOS | Award |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), cache slot, VRM connector |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Serial port 2 | CN1 | Turbo switch | J4 |
Serial port 1 | CN2 | Turbo LED | J5 |
Parallel port | CN3 | Green PC LED | J6 |
Floppy drive interface | CN4 | Chassis fan power | J7 |
IDE interface 2 | CN5 | PS/2 mouse interface | J10 |
IDE interface 1 | CN6 | IDE interface LED | JP5 |
PS/2 mouse port | CN7 | Green PC connector | JP14 |
Power LED & keylock | J1 | 32-bit PCI slots | PC1 - PC4 |
Speaker | J2 | Cache slot | SL1 |
Reset switch | J3 | VRM connector | VRM |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | SMC chip enabled | J24 | Open |
SMC chip disabled | J24 | Closed | |
» | Flash BIOS voltage select 5v | JP6 | Pins 1 & 2 closed |
Flash BIOS voltage select 12v | JP6 | Pins 2 & 3 closed | |
Jumper information unavailable | JP12 | Unidentified | |
» | Clock rate set as AT CLOCK | JP15 | Pins 1 & 2 closed |
Clock rate set as 12MHz | JP15 | Pins 2 & 3 closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
8MB | (2) 1M x 36 | None |
16MB | (2) 1M x 36 | (2) 1M x 36 |
16MB | (2) 2M x 36 | None |
24MB | (2) 1M x 36 | (2) 2M x 36 |
24MB | (2) 2M x 36 | (2) 1M x 36 |
32MB | (2) 2M x 36 | (2) 2M x 36 |
32MB | (2) 4M x 36 | None |
40MB | (2) 1M x 36 | (2) 4M x 36 |
40MB | (2) 4M x 36 | (2) 1M x 36 |
48MB | (2) 2M x 36 | (2) 4M x 36 |
48MB | (2) 4M x 36 | (2) 2M x 36 |
64MB | (2) 4M x 36 | (2) 4M x 36 |
64MB | (2) 8M x 36 | None |
72MB | (2) 1M x 36 | (2) 8M x 36 |
72MB | (2) 8M x 36 | (2) 1M x 36 |
80MB | (2) 2M x 36 | (2) 8M x 36 |
80MB | (2) 8M x 36 | (2) 2M x 36 |
96MB | (2) 4M x 36 | (2) 8M x 36 |
96MB | (2) 8M x 36 | (2) 4M x 36 |
128MB | (2) 8M x 36 | (2) 8M x 36 |
Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. |
CACHE CONFIGURATION | |||
Size | Bank 0 | TAG | SL1 |
256KB (A) | (2) 32K x 32 | None | 256KB module installed |
256KB (B) | (2) 32K x 32 | (1) 8K/16K x 8 | Not installed |
512KB (A) | (2) 64K x 32 | (1) 16K/32K x 8 | Not installed |
512KB (B) | (2) 32K x 32 | (1) 16K/32K x 8 | 256KB module installed |
Note: If 256KB (A) configuration is used, see jumper setting for TP1 below. |
CACHE JUMPER CONFIGURATION | ||
Size | JP10 | JP11 |
256KB (B) | Pins 1 & 2 closed | Pins 1 & 2 closed |
512KB (A) | Pins 1 & 2 closed | Pins 1 & 2 closed |
512KB (B) | Pins 2 & 3 closed | Pins 2 & 3 closed |
CACHE JUMPER CONFIGURATION | |
Size | TP1 |
Bank 0 enabled | Open |
Bank 0 disabled | Pins 1 & 2, 3 & 4 closed |
CPU SPEED SELECTION | |||||||
CPU speed | Clock speed | Multiplier | J25 | JP7 | JP9 | JPS1 | JPS2 |
75MHz | 50MHz | 1.5x | 1 & 2 | 2 & 3 | 2 & 3 | Open | Open |
90MHz | 60MHz | 1.5x | 2 & 3 | 2 & 3 | 2 & 3 | Closed | Open |
100MHz | 66MHz | 1.5x | 2 & 3 | 2 & 3 | 2 & 3 | Closed | Closed |
120MHz | 60MHz | 2x | 2 & 3 | 1 & 2 | 2 & 3 | Closed | Open |
133MHz | 66MHz | 2x | 2 & 3 | 1 & 2 | 2 & 3 | Closed | Closed |
150MHz | 60MHz | 2.5x | 2 & 3 | 1 & 2 | 1 & 2 | Closed | Open |
166MHz | 66MHz | 2.5x | 2 & 3 | 1 & 2 | 1 & 2 | Closed | Closed |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION | |
Type | JP1 |
P54C/P54CS | Pins 1 & 2 closed |
P55C/P55CT | Pins 2 & 3 closed |
CACHE JUMPER CONFIGURATION (ESCM CACHE MODULE) | |
Size | JP1 |
256KB | Pins 1 & 2, 5 & 6 closed |
512KB | Pins 2 & 3, 4 & 5 closed |