SERIES 68 ENTERPRISE-III Motherboard Settings and Configuration
AMERICAN MEGATRENDS, INC.
SERIES 68 ENTERPRISE-III
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 25/33/50(internal)/50/66(internal)MHz |
Chip Set | AMI |
Max. Onboard DRAM | 256MB |
Cache | 256KB (factory configured) |
BIOS | AMI |
Dimensions | 330mm x 307mm |
I/O Options | 32-bit VESA local bus slots (2), mouse port |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | D5 | Reset switch | J9 |
Diagnostic LED | J1 | Power LED & keylock | J10 |
Mouse | J3 | Turbo switch | J14 |
Speaker | J8 | 32-bit VESA local bus slots | S1 & S2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | CMOS memory normal operation | J2 | Open |
| CMOS memory clear | J2 | Closed |
» | CPU select low priority | J19 | pins 1 & 2 closed |
| CPU select high priority | J19 | pins 2 & 3 closed |
» | Factory configured - do not alter | J20 | Closed |
» | Factory configured - do not alter | J21 | Closed |
» | Factory configured - do not alter | J24 | Closed |
» | VESA bus select ID3 normal operation <=33MHz | J30 | pins 1 & 2 closed |
| VESA bus select remote ID3 > 33MHz | J30 | pins 2 & 3 closed |
» | Factory configured - do not alter | SW1/1 | Off |
» | Monitor type select monochrome | SW1/2 | Off |
| Monitor type select color | SW1/2 | On |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
18MB | (4) 256K x 9 | (4) 256K x 9 | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE | NONE | NONE |
128MB | (4) 16M x 9 | (4) 16M x 9 | NONE | NONE |
192MB | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 | NONE |
256MB | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 |
CPU TYPE CONFIGURATION | ||
Type | Location | J7 |
80486SX | Primary | pins 2 & 3 closed |
ODP486SX | Upgrade | pins 1 & 2, 3 & 4 closed |
80487SX | Upgrade | pins 1 & 2, 3 & 4 closed |
80486DX | Primary | pins 1 & 2, 3 & 4 closed |
80486DX2 | Primary | pins 1 & 2, 3 & 4 closed |
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