3486HN CACHE MAINBOARD Motherboard Settings and Configuration
UNIDENTIFIED
3486HN CACHE MAINBOARD
Processor | AM386DX/80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 254mm x 220mm |
I/O Options | None |
NPU Options | 80387DX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J2 | Turbo LED | J44 |
Power LED & keylock | J42 | Reset switch | J45 |
Turbo switch | J43 | Speaker | J46 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation | J3 | pins 2 & 3 closed |
CMOS memory clear | J3 | pins 1 & 2 closed | |
» | 80386 speed select 33MHz | J4 | Closed |
80386 speed select 40MHz | J4 | Open | |
» | Factory configured - do not alter | J5 | N/A |
» | Monitor type select color | J6 | Closed |
Monitor type select monochrome | J6 | Open | |
» | 80386 PQFP CPU disabled | J24 | Closed |
80386 PQFP CPU enabled | J24 | Open | |
» | 80486 PQFP CPU disabled | J27 | Closed |
80486 PQFP CPU enabled | J27 | Open | |
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) 1M x 9 | (4) 4M x 9 |
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 (U29) | TAG (U30) |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | NONE |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | NONE |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 8K x 8 | (1) 8K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size | J34 | J36 | J37 | J38 |
64KB | Open | pins 2 & 3 closed | Open | Open |
128KB | Closed | pins 1 & 2 closed | Closed | Open |
256KB | Closed | pins 2 & 3 closed | Closed | Closed |
CPU TYPE CONFIGURATION | ||
Type | J23 | J31 |
80386DX | pins 1 & 2 closed | Open |
CX486DLC | pins 1 & 2 closed | Open |
80486SX/DX/DX2 | pins 2 & 3 closed | Closed |
CPU TYPE CONFIGURATION | ||
Type | J25 | J26 |
Cyrix | Closed | Closed |
AMD/Intel | Open | Open |
CPU TYPE CONFIGURATION | |||
Type | J28 | J29 | J41 |
80486SX (PQFP) | Closed | pins 2 & 3 closed | Open |
80486 (PGA) | Open | pins 2 & 3 closed | Open |
80487SX | Open | pins 2 & 3 closed | pins 2 & 3 closed |
80486DX/DX2 | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | ||
Type | J39 | J40 |
80386DX | pins 1 & 2 closed | pins 2 & 3 closed |
CX486DLC | pins 1 & 2 closed | pins 2 & 3 closed |
80486DX | pins 1 & 2 closed | pins 1 & 2 closed |
80486DX2 | pins 2 & 3 closed | pins 2 & 3 closed |
CPU CLOCK SPEED CONFIGURATION | ||
Speed | J30 | J32 |
40MHz | Closed | Closed |
50MHz | Closed | Open |
66MHz | Open | Closed |
80MHz | Open | Open |
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