PINE TECHNOLOGY
PT-428
Processor | 80486SX/80486DX/80486DX2 |
Processor Speed | 25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | UMC |
Max. Onboard DRAM | 32MB |
Cache | 32/64/128/256KB |
BIOS | AMI |
Dimensions | 250mm x 220mm |
I/O Options | 32-bit VESA local bus slots (3) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Speaker | J5 |
Reset switch | J2 | Power LED & keylock | J6 |
Turbo switch | J3 | 32-bit VESA Local bus slots | SL1,SL2 & SL3 |
Turbo LED | J4 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Battery type select - internal | JP1 | Closed |
Battery type select - internal | JP1 | Open | |
» | Power good signal detect from power supply | JP2 | pins 1 & 2 closed |
Power good signal detect from board | JP2 | pins 2 & 3 closed | |
» | VGA card select - normal | JP3 | pins 1 & 2 closed |
VGA card select - POWER 9000 | JP3 | pins 2 & 3 closed | |
» | CPU test logic enabled | JP6 | Open |
CPU test logic disabled | JP6 | Closed | |
» | (MCA1) LDEV# direct connect to 491 ELBA# | JP7 | pins 1 & 2 closed |
LDEV# through and gate to 491 ELBA# | JP7 | pins 2 & 3 closed | |
» | CPU speed select < 33MHz | JP11 | Open |
CPU speed select > 33MHz | JP11 | Closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||
Size | JP12 | JP13 | JP14 | JP15 | JP16 |
32MB | Open | 2 & 3 | Open | Open | Open |
64KB | Open | 1 & 2 | Open | Closed | Open |
128KB | 2 & 3 | 2 & 3 | Open | Closed | Closed |
256KB | 1 & 2 | 1 & 2 | Closed | Closed | Closed |
Note: pins designated should be in the closed position. |
CPU TYPE CONFIGURATION | ||
CPU Type | J17 | J18 |
80486SX | pins 2 & 3 closed | Open |
80486DX/DX2 | pins 1, 2, 3 & 4 closed | pins 1 & 2 closed |
Pentium Overdrive | pins 1, 2, 3 & 4 closed | pins 2 & 3 closed |
CPU SPEED CONFIGURATION (CHRONTEL CH9007C CLOCK) | ||
Speed | JP8 | JP9 |
25MHz | pins 1 & 2 closed | pins 1 & 2 closed |
33MHz | pins 2 & 3 closed | pins 1 & 2 closed |
40MHz | pins 1 & 2 closed | pins 2 & 3 closed |
50iMHz | pins 1 & 2 closed | pins 1 & 2 closed |
50MHz | pins 2 & 3 closed | pins 2 & 3 closed |
66iMHz | pins 2 & 3 closed | pins 1 & 2 closed |
CPU SPEED CONFIGURATION (PHASE LINE PLL52C05) | |||
Speed | JP8 | JP9 | JP21 |
25MHz | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
33MHz | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
40MHz | pins 1 & 2 closed | pins 2 & 3 closed | Open |
50iMHz | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
50MHz | pins 2 & 3 closed | pins 2 & 3 closed | Open |
66iMHz | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
VESA ID4 CONFIGURATION | ||
50MHz delay | JP4 | JP5 |
No delay | pins 1 & 2 closed | pins 1 & 2 closed |
1 - T | pins 2 & 3 closed | pins 2 & 3 closed |