...because we can't all be on the bleeding edge...
UNIDENTIFIED
MB-4D50AV
|
Processor |
CXM6/SL80486SX/80486SX/CXM7/AM486DXLV-S/SL80486DX/80486DX/ 80486DX2/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
ALI |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256KB |
|
BIOS |
AMI |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
J1 |
Green PC connector |
JP9 |
|
Turbo LED |
J2 |
Green PC connector (monitor) |
JP10 |
|
External battery |
J3 |
Green PC connector-(external input) |
JP32 |
|
Turbo switch |
J4 |
Green PC connector-(ring input) |
JP33 |
|
Power LED & keylock |
J5 |
32-bit VESA local bus slots |
SL1 - SL3 |
|
Speaker |
J6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Battery type select internal |
J3 |
Open |
|
Battery type select external |
J3 |
Closed | |
|
CMOS memory clear |
J3 |
pins 2 & 3 closed | |
|
» |
Real time clock enabled |
JP12 |
pins 1 & 2 closed |
|
Real time clock disabled |
JP12 |
pins 2 & 3 closed | |
|
» |
Monitor type select color |
JP13 |
Closed |
|
Monitor type select monochrome |
JP13 |
Open | |
|
» |
CPU type select P24T/CXM6/CXM7 2x |
JP20 |
Closed |
|
CPU type select CXM6/CXM7 1x |
JP20 |
Open | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
NONE |
NONE |
NONE |
(1) 256K x 36 |
|
2MB |
NONE |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
2MB |
NONE |
NONE |
NONE |
(1) 512K x 36 |
|
3MB |
NONE |
(1) 256K x 36 |
NONE |
(1) 512K x 36 |
|
3MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
NONE |
NONE |
NONE |
(1) 1M x 36 |
|
4MB |
NONE |
(1) 512K x 36 |
NONE |
(1) 512K x 36 |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
5MB |
NONE |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
|
5MB |
NONE |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
|
6MB |
NONE |
(1) 1M x 36 |
NONE |
(1) 512K x 36 |
|
6MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
|
6MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
6MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
8MB |
NONE |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
8MB |
NONE |
NONE |
NONE |
(1) 2M x 36 |
|
9MB |
NONE |
(1) 256K x 36 |
NONE |
(1) 2M x 36 |
|
9MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
|
9MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
10MB |
NONE |
(1) 512K x 36 |
NONE |
(1) 2M x 36 |
|
10MB |
NONE |
(1) 2M x 36 |
NONE |
(1) 512K x 36 |
|
12MB |
NONE |
(1) 1M x 36 |
NONE |
(1) 2M x 36 |
|
12MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
13MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
16MB |
NONE |
NONE |
NONE |
(1) 4M x 36 |
|
16MB |
NONE |
(1) 2M x 36 |
NONE |
(1) 2M x 36 |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
17MB |
NONE |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
|
17MB |
NONE |
NONE |
(1) 4M x 36 |
(1) 256K x 36 |
|
18MB |
NONE |
(1) 4M x 36 |
NONE |
(1) 512K x 36 |
|
18MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
18MB |
NONE |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
18MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
20MB |
NONE |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
|
20MB |
NONE |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
|
21MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
|
21MB |
NONE |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
|
21MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
21MB |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
21MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
21MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
24MB |
NONE |
(1) 4M x 36 |
NONE |
(1) 2M x 36 |
|
24MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
24MB |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
24MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
25MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
28MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
NONE |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
NONE |
NONE |
NONE |
(1) 8M x 36 |
|
33MB |
NONE |
(1) 256K x 36 |
NONE |
(1) 8M x 36 |
|
33MB |
NONE |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
|
33MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
33MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
34MB |
NONE |
(1) 512K x 36 |
NONE |
(1) 8M x 36 |
|
34MB |
NONE |
(1) 8M x 36 |
NONE |
(1) 512K x 36 |
|
36MB |
NONE |
(1) 1M x 36 |
NONE |
(1) 8M x 36 |
|
36MB |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
36MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
36MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
36MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
40MB |
NONE |
(1) 2M x 36 |
NONE |
(1) 8M x 36 |
|
40MB |
NONE |
(1) 8M x 36 |
NONE |
(1) 2M x 36 |
|
48MB |
NONE |
(1) 4M x 36 |
NONE |
(1) 8M x 36 |
|
48MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
49MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
52MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64MB |
NONE |
NONE |
NONE |
(1) 16M x 36 |
|
64MB |
NONE |
(1) 8M x 36 |
NONE |
(1) 8M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
65MB |
NONE |
NONE |
(1) 256K x 36 |
(1) 16M x 36 |
|
65MB |
NONE |
NONE |
(1) 16M x 36 |
(1) 256K x 36 |
|
66MB |
NONE |
(1) 16M x 36 |
NONE |
(1) 512K x 36 |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
66MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 16M x 36 |
|
66MB |
NONE |
(1) 16M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
66MB |
NONE |
(1) 256K x 36 |
(1) 16M x 36 |
(1) 256K x 36 |
|
68MB |
NONE |
NONE |
(1) 1M x 36 |
(1) 16M x 36 |
|
68MB |
NONE |
NONE |
(1) 16M x 36 |
(1) 1M x 36 |
|
69MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 16M x 36 |
|
69MB |
NONE |
(1) 16M x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
|
69MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
|
69MB |
NONE |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
69MB |
NONE |
(1) 256K x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
|
69MB |
NONE |
(1) 1M x 36 |
(1) 16M x 36 |
(1) 256K x 36 |
|
72MB |
NONE |
(1) 16M x 36 |
NONE |
(1) 2M x 36 |
|
72MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
|
72MB |
NONE |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
76MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
|
80MB |
NONE |
NONE |
(1) 4M x 36 |
(1) 16M x 36 |
|
80MB |
NONE |
(1) 1M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
|
81MB |
NONE |
(1) 16M x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
|
81MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
81MB |
NONE |
(1) 256K x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
|
81MB |
NONE |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 256K x 36 |
|
84MB |
NONE |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
|
84MB |
NONE |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
84MB |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
84MB |
NONE |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
84MB |
NONE |
(1) 1M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
|
84MB |
NONE |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
|
88MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
|
96MB |
NONE |
(1) 16M x 36 |
NONE |
(1) 8M x 36 |
|
96MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
96MB |
NONE |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
96MB |
NONE |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
|
97MB |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
100MB |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
112MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
112MB |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
112MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
|
128MB |
NONE |
NONE |
(1) 16M x 36 |
(1) 16M x 36 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 or (1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP3 |
JP4 |
|
128KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | |||||
|
Type |
JP8 |
JP16 |
JP17 |
JP18 |
JP19 |
|
CX M6 |
5 & 6 |
Open |
Open |
Closed |
Open |
|
SL80486SX |
1 & 2 |
Closed |
Closed |
Open |
Closed |
|
80486SX |
Open |
Closed |
Closed |
Open |
Open |
|
CX M7 |
5 & 6 |
Closed |
Open |
Closed |
Open |
|
AM486DXLV-S |
3 & 4 |
Closed |
Closed |
Open |
Open |
|
SL80486DX |
1 & 2 |
Closed |
Closed |
Open |
Closed |
|
80486DX |
Open |
Closed |
Closed |
Open |
Open |
|
80486DX2 |
Open |
Closed |
Closed |
Open |
Open |
|
Pentium Overdrive |
1 & 2 |
Closed |
Closed |
Open |
Open |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
JP21 |
JP22 |
JP23 |
JP24 |
JP25 |
|
CX M6 |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
|
SL80486SX |
1 & 2 |
Open |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486SX |
1 & 2 |
Open |
2 & 3 |
Open |
1 & 2 |
|
CX M7 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
AM486DXLV-S |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
|
SL80486DX |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
|
80486DX2 |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
|
Pentium Overdrive |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
JP27 |
JP28 |
JP29 |
JP30 |
JP31 |
|
CX M6 |
Closed |
Open |
Closed |
4 & 5 |
4 & 5 |
|
SL80486SX |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
80486SX |
Open |
Open |
Closed |
Open |
Open |
|
CX M7 |
Closed |
Open |
Closed |
4 & 5 |
4 & 5 |
|
AM486DXLV-S |
Open |
Open |
Open |
2 & 3 |
2 & 3 |
|
SL80486DX |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
80486DX |
Open |
Open |
Closed |
Open |
Open |
|
80486DX2 |
Open |
Open |
Closed |
Open |
Open |
|
Pentium Overdrive |
Open |
Closed |
Open |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION | |
|
Type |
JP40 |
|
80486 |
pins 1 & 2 closed, pins 3 & 4 open |
|
Note: The location of JP40 is unidentified. | |
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
JP7 |
JP26 |
JP35 |
JP36 |
|
25MHz |
pins 1 & 2, 5 & 6 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
33MHz |
pins 3 & 4, 5 & 6 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
40MHz |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
50iMHz |
pins 1 & 2, 5 & 6 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
50MHz |
pins 1 & 2, 5 & 6 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
66iMHz |
pins 3 & 4, 5 & 6 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
VESA WAIT STATE CONFIGURATION | |
|
Wait states |
JP40 |
|
0 wait states |
pins 5 & 6 open |
|
1 wait state |
pins 5 & 6 closed |
|
Note: The location of JP40 is unidentified. | |
|
BUS SPEED CONFIGURATION | |
|
CPU speed |
JP40 |
|
<= 33MHz |
pins 7 & 8 open |
|
> 33MHz |
pins 7 & 8 closed |
|
Note: The location of JP40 is unidentified. | |