TMC RESEARCH CORPORATION
PAT48PX
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 20/25/33/40(internal)/50/66(internal)MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card slot |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J10 | IDE LED in | J23 pins 10 & 20 |
Speaker | J23 pins 1 - 4 | Power LED & keylock | J23 pins 11 - 15 |
Turbo switch | J23 pins 7 & 17 | IDE LED out | JP12 |
Turbo LED | J23 pins 8 & 18 | 32-bit external memory card | S1 |
Reset switch | J23 pins 9 & 19 |
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USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP1 | Closed |
| Monitor type select monochrome | JP1 | Open |
» | CMOS memory normal operation (internal battery) | JP2 | pins 2 & 3 closed |
| CMOS memory normal operation (external battery at J4) | JP2 | Open |
| CMOS memory clear | JP2 | pins 1 & 2 closed |
» | Bus speed select CLKIN/4 | JP3 | Open |
| Bus speed select CLKIN/6 | JP3 | 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) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||||
Size | Bank 0 | Bank 1 | TAG (U33) | TAG (U34) | Resistor Installed |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 4K x 1 | (1) 8K x 8 | RND |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 16K x 1 | (1) 8K x 8 | RND |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 64K x 1 | (1) 8K x 8 | RND |
128KB | (4) 32K x 8 | NONE | (1) 16K x 1 | (1) 8K x 8 | RNF |
128KB | (4) 32K x 8 | NONE | (1) 64K x 1 | (1) 8K x 8 | RNF |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 1 | (1) 32K x 8 | RNE |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 64K x 1 | (1) 32K x 8 | RNE |
Notes: If DRAM is If DRAM is £ 16MB, all cache sizes may be installed; if DRAM is >16MB and £ 32MB,128 or 256KB cache must be installed, if DRAM > 32MB, 256KB cache must be installed. (Memory over 32MB would be installed on the proprietary external memory card.) |
CPU TYPE CONFIGURATION | |||
Type | RNA | RNB | RNC |
80486SX | Not installed | Not installed | Installed |
ODP486SX | Not installed | Installed | Not installed |
80487SX | Not installed | Installed | Not installed |
80486DX | Installed | Not installed | Not installed |
80486DX2 | Installed | Not installed | Not installed |