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 |
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|
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 |
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|
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 |