JOINDATA SYSTEMS, INC.
G486PE
Processor | 80486SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256/512KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J4 | Reset switch | J9 |
Power LED & keylock | J5 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | I/O bus speed select normal | JP1 | Open |
I/O bus speed select slow | JP1 | Closed | |
» | Monitor type select monochrome | JP5 | Open |
Monitor type select color | JP5 | Closed | |
» | Burst mode enabled | JP7 | Closed |
Burst mode disabled | JP7 | Open |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (4) 1M x 9 | NONE |
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 (U52) | TAG (U52) | Dirty Bit(U66) |
64KB | 4) 8K x 8 | 4) 8K x 8 | (1) 8K x 8 | N/A | (1) 16K x 1 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | N/A | (1) 16K x 1 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 8K x 8 | (1) 8K x 8 | (1) 16K x 1 |
512KB | (4) 128K x 8 | NONE | (1) 32K x 8 | N/A | (1) 64K x 1 |
Note:You may use a (1) 64K x 1 at U66 for all Cache SRAM sizes . |
CACHE JUMPER CONFIGURATION | |||||||
Size | JP6 | JP11 | JP12 | JP13 | JP14 | JP15 | JP16 |
64KB | 2 & 3 | Open | Open | Open | Open | Open | Open |
128KB | 1 & 2 | Open | Open | Closed | Open | Closed | Open |
256KB | 2 & 3 | Open | Closed | Closed | Closed | Closed | Open |
512KB | 1 & 2 | Closed | Closed | Closed | Closed | Closed | Closed |
Note:Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION | ||||||
Type | OSC1 | JP2 | JP3 | JP8 | JP9 | JP10 |
80486DX2- 50 MHz | 50MHz | Closed | Closed | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 |
80486DX2- 50 MHz | 25MHz | Closed | Closed | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 |
80486DX- 50 MHz | 50MHz | Closed | Closed | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 |
80486DX- 33 MHz | 66MHz | Closed | Open | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 |
80486DX- 33 MHz | 33MHz | Closed | Open | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 |
80486DX- 25 MHz | 50MHz | Open | Open | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 |
80486DX- 25 MHz | 25MHz | Open | Open | 1 & 2, 3 & 4 | 1 & 2 | 1 & 2 |
80486SX- 25 MHz | 50MHz | Open | Open | 2 & 3 | 2 & 3 | Open |
80486SX- 25 MHz | 25MHz | Open | Open | 2 & 3 | 1 & 2 | Open |
80486SX- 20 MHz | 40MHz | Open | Open | 2 & 3 | 2 & 3 | Open |
80486SX- 20 MHz | 20MHz | Open | Open | 2 & 3 | 1 & 2 | Open |
Note:Pins designated should be in the closed position. |