|
R407 VESA 486
M TECHNOLOGY, INC.
R407 VESA 486
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Processor
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80486SX/CX486DX/80486DX/CX486DX2/80486DX2/80486DX4/P24D/Pentium Overdrive
|
|
Processor Speed
|
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
|
|
Chip Set
|
Unidentified
|
|
Max. Onboard DRAM
|
128MB
|
|
Cache
|
64/128/256/512/1024KB
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|
BIOS
|
AMI
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|
Dimensions
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330mm x 218mm
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|
I/O Options
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32-bit VESA local bus slots (3), green PC connector
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|
NPU Options
|
None
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|
CONNECTIONS
|
|
Purpose
|
Location
|
Purpose
|
Location
|
|
External battery
|
J2
|
Reset switch
|
J7
|
|
Power LED & keylock
|
J3
|
Green PC connector
|
J8
|
|
Speaker
|
J4
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Bus mouse port
|
JP60
|
|
Turbo switch
|
J5
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Green PC connector
|
JP61
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|
Turbo LED
|
J6
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Green PC connector
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SL1 - SL3
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|
USER CONFIGURABLE SETTINGS
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|
Function
|
Jumper
|
Position
|
|
»
|
Factory configured - do not alter
|
JP43
|
N/A
|
|
»
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CMOS memory normal operation
|
JP50
|
pins 1 & 2 closed
|
|
|
CMOS memory clear
|
JP50
|
pins 2 & 3 closed
|
|
»
|
Monitor type select CGA
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JP62
|
Closed
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|
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Monitor type select monochrome/EGA/VGA
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JP62
|
Open
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DRAM CONFIGURATION (MODE 1)
|
|
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
|
|
5MB
|
(4) 256K x 9
|
(4) 1M x 9
|
NONE
|
NONE
|
|
6MB
|
(4) 256K x 9
|
(4) 256K x 9
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(1) 1M x 36
|
NONE
|
|
8MB
|
(4) 1M x 9
|
(4) 1M x 9
|
NONE
|
NONE
|
|
10MB
|
(4) 256K x 9
|
(4) 256K x 9
|
(1) 1M x 36
|
(1) 1M x 36
|
|
12MB
|
(4) 1M x 9
|
(4) 1M x 9
|
(1) 1M x 36
|
NONE
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|
16MB
|
(4) 1M x 9
|
(4) 1M x 9
|
(1) 1M x 36
|
(1) 1M x 36
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|
16MB
|
(4) 4M x 9
|
NONE
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NONE
|
NONE
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|
17MB
|
(4) 256K x 9
|
(4) 4M x 9
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NONE
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(1) 1M x 36
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|
18MB
|
(4) 256K x 9
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(4) 256K x 9
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(1) 4M x 36
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NONE
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|
20MB
|
(4) 1M x 9
|
(4) 4M x 9
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NONE
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NONE
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24MB
|
(4) 1M x 9
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(4) 1M x 9
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(1) 4M x 36
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NONE
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32MB
|
(4) 4M x 9
|
(4) 4M x 9
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NONE
|
NONE
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36MB
|
(4) 1M x 9
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(4) 4M x 9
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(1) 4M x 36
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NONE
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|
40MB
|
(4) 1M x 9
|
(4) 1M x 9
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(1) 4M x 36
|
(1) 4M x 36
|
|
48MB
|
(4) 4M x 9
|
(4) 4M x 9
|
(1) 4M x 36
|
NONE
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|
64MB
|
(4) 4M x 9
|
(4) 4M x 9
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(1) 4M x 36
|
(1) 4M x 36
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|
64MB
|
(4) 16M x 9
|
NONE
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NONE
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NONE
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65MB
|
(4) 256K x 9
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(4) 16M x 9
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(1) 16M x 36
|
NONE
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68MB
|
(4) 1M x 9
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(4) 16M x 9
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(1) 16M x 36
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NONE
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|
72MB
|
(4) 1M x 9
|
(4) 1M x 9
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(1) 1M x 36
|
(1) 16M x 36
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|
80MB
|
(4) 4M x 9
|
(4) 16M x 9
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(1) 16M x 36
|
NONE
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|
96MB
|
(4) 4M x 9
|
(4) 4M x 9
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(1) 4M x 36
|
(1) 16M x 36
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128MB
|
(4) 16M x 9
|
(4) 16M x 9
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NONE
|
NONE
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DRAM CONFIGURATION (MODE 2)
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|
Size
|
Bank 0
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Bank 1
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Bank 2
|
Bank 3
|
|
1MB
|
NONE
|
NONE
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(1) 256K x 36
|
NONE
|
|
2MB
|
NONE
|
NONE
|
(1) 256K x 36
|
(1) 256K x 36
|
|
2MB
|
NONE
|
NONE
|
(1) 512K x 36
|
NONE
|
|
4MB
|
NONE
|
NONE
|
(1) 512K x 36
|
(1) 512K x 36
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|
4MB
|
NONE
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NONE
|
(1) 1M x 36
|
NONE
|
|
5MB
|
NONE
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NONE
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(1) 256K x 36
|
(1) 1M x 36
|
|
6MB
|
(4) 1M x 9
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NONE
|
(1) 256K x 36
|
(1) 256K x 36
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DRAM CONFIGURATION (MODE 2 CON’T)
|
|
Size
|
Bank 0
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Bank 1
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Bank 2
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Bank 3
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|
6MB
|
NONE
|
NONE
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(1) 512K x 36
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(1) 1M x 36
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|
8MB
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(4) 1M x 9
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NONE
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(1) 512K x 36
|
(1) 512K x 36
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|
8MB
|
NONE
|
NONE
|
(1) 1M x 36
|
(1) 1M x 36
|
|
8MB
|
NONE
|
NONE
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(1) 2M x 36
|
NONE
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|
10MB
|
(4) 1M x 9
|
(4) 1M x 9
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(1) 256K x 36
|
(1) 256K x 36
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12MB
|
(4) 1M x 9
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(4) 1M x 9
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(1) 512K x 36
|
(1) 512K x 36
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|
12MB
|
(4) 1M x 9
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NONE
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(1) 1M x 36
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(1) 1M x 36
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|
12MB
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NONE
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NONE
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(1) 1M x 36
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(1) 2M x 36
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16MB
|
(4) 1M x 9
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(4) 1M x 9
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(1) 1M x 36
|
(1) 1M x 36
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|
16MB
|
NONE
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NONE
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(1) 2M x 36
|
(1) 2M x 36
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|
16MB
|
NONE
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NONE
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(1) 4M x 36
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NONE
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|
17MB
|
NONE
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NONE
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(1) 256K x 36
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(1) 4M x 36
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18MB
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(4) 4M x 9
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NONE
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(1) 256K x 36
|
(1) 256K x 36
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|
18MB
|
NONE
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NONE
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(1) 512K x 36
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(1) 4M x 36
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|
20MB
|
(4) 4M x 9
|
NONE
|
(1) 512K x 36
|
(1) 512K x 36
|
|
20MB
|
NONE
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NONE
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(1) 1M x 36
|
(1) 4M x 36
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|
24MB
|
(4) 1M x 9
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(4) 4M x 9
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(1) 512K x 36
|
(1) 512K x 36
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|
24MB
|
(4) 4M x 9
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NONE
|
(1) 1M x 36
|
(1) 1M x 36
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|
24MB
|
NONE
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NONE
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(1) 2M x 36
|
(1) 4M x 36
|
|
32MB
|
(4) 4M x 9
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NONE
|
(1) 2M x 36
|
(1) 2M x 36
|
|
32MB
|
NONE
|
NONE
|
(1) 4M x 36
|
(1) 4M x 36
|
|
32MB
|
NONE
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NONE
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(1) 8M x 36
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NONE
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|
36MB
|
(4) 4M x 9
|
(4) 4M x 9
|
(1) 512K x 36
|
(1) 512K x 36
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|
36MB
|
(4) 4M x 9
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NONE
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(1) 1M x 36
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(1) 4M x 36
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|
36MB
|
NONE
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NONE
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(1) 1M x 36
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(1) 8M x 36
|
|
40MB
|
(4) 4M x 9
|
(4) 4M x 9
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(1) 1M x 36
|
(1) 1M x 36
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|
48MB
|
(4) 4M x 9
|
(4) 4M x 9
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(1) 2M x 36
|
(1) 2M x 36
|
|
48MB
|
(4) 4M x 9
|
(4) 4M x 9
|
(1) 4M x 36
|
(1) 4M x 36
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|
48MB
|
NONE
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NONE
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(1) 4M x 36
|
(1) 8M x 36
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|
64MB
|
(4) 4M x 9
|
(4) 4M x 9
|
(1) 4M x 36
|
(1) 4M x 36
|
|
64MB
|
NONE
|
NONE
|
(1) 16M x 36
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NONE
|
|
64MB
|
NONE
|
NONE
|
(1) 8M x 36
|
(1) 8M x 36
|
|
65MB
|
NONE
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NONE
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(1) 256K x 36
|
(1) 16M x 36
|
|
68MB
|
NONE
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NONE
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(1) 1M x 36
|
(1) 16M x 36
|
|
72MB
|
(4) 16M x 9
|
NONE
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(1) 1M x 36
|
(1) 1M x 36
|
|
80MB
|
NONE
|
NONE
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(1) 4M x 36
|
(1) 16M x 36
|
|
96MB
|
(4) 16M x 9
|
NONE
|
(1) 4M x 36
|
(1) 4M x 36
|
|
128MB
|
NONE
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NONE
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(1) 16M x 36
|
(1) 16M x 36
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DRAM JUMPER CONFIGURATION
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|
Type
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JP30
|
JP31
|
JP32
|
JP33
|
|
Mode 1
|
pins 1 & 2 closed
|
pins 1 & 2 closed
|
pins 1 & 2 closed
|
pins 1 & 2 closed
|
|
Mode 2
|
pins 2 & 3 closed
|
pins 2 & 3 closed
|
pins 2 & 3 closed
|
pins 2 & 3 closed
|
|
CACHE CONFIGURATION
|
|
Size
|
Bank 0
|
Bank 1
|
TAG
|
|
64KB
|
(4) 8K x 8
|
(4) 8K x 8
|
(1) 8K x 8
|
|
128KB
|
(4) 32K x 8
|
NONE
|
(1) 8K x 8
|
|
256KB
|
(4) 32K x 8
|
(4) 32K x 8
|
(1) 32K x 8
|
|
256KB
|
(4) 64K x 8
|
NONE
|
(1) 32K x 8
|
|
512KB
|
(4) 64K x 8
|
(4) 64K x 8
|
(1) 32K x 8
|
|
512KB
|
(4) 128K x 8
|
NONE
|
(1) 32K x 8
|
|
1MB
|
(4) 128K x 8
|
(4) 128K x 8
|
(1) 64K x 8
|
|
CACHE JUMPER CONFIGURATION
|
|
Size
|
JP20
|
JP21
|
JP22
|
JP23
|
JP24
|
JP25
|
JP26
|
|
256KB
|
2 & 3
|
1 & 2
|
1 & 2
|
2 & 3
|
1 & 2
|
1 & 2
|
Open
|
|
Note: The jumper settings for the remaining cache sizes are unidentified by the manufacturer. Pins designated should be in the closed position.
|
|
CPU TYPE CONFIGURATION
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|
Type
|
JP1
|
JP2
|
JP3
|
JP4
|
JP5
|
|
80486SX
|
Open
|
3 & 4
|
1 & 2
|
2 & 3
|
2 & 3
|
|
CX486DX
|
2 & 3
|
2 & 3
|
Open
|
2 & 3
|
1 & 2
|
|
80486DX
|
Open
|
3 & 4
|
1 & 2
|
2 & 3
|
2 & 3
|
|
CX486DX2
|
2 & 3
|
2 & 3
|
Open
|
2 & 3
|
1 & 2
|
|
80486DX2
|
Open
|
3 & 4
|
1 & 2
|
2 & 3
|
2 & 3
|
|
80486DX4
|
Open
|
3 & 4
|
1 & 2
|
2 & 3
|
2 & 3
|
|
P24D
|
Open
|
1 & 2
|
2 & 3
|
1 & 2
|
1 & 2
|
|
Pentium Overdrive
|
1 & 2
|
1 & 2
|
Open
|
1 & 2
|
1 & 2
|
|
Note: Pins designated should be in the closed position.
|
|
CPU TYPE CONFIGURATION (CON’T)
|
|
Type
|
JP6
|
JP7
|
JP8
|
JP9
|
JP10
|
|
80486SX
|
1 & 2
|
2 & 3
|
Open
|
2 & 3
|
3 & 4
|
|
CX486DX
|
2 & 3
|
1 & 2
|
3 & 4
|
1 & 2, 3 & 4
|
2 & 3
|
|
80486DX
|
1 & 2
|
2 & 3
|
3 & 4
|
1 & 2, 3 & 4
|
3 & 4
|
|
CX486DX2
|
2 & 3
|
1 & 2
|
3 & 4
|
1 & 2, 3 & 4
|
2 & 3
|
|
80486DX2
|
1 & 2
|
2 & 3
|
3 & 4
|
1 & 2, 3 & 4
|
3 & 4
|
|
80486DX4
|
1 & 2
|
2 & 3
|
3 & 4
|
1 & 2, 3 & 4
|
3 & 4
|
|
P24D
|
1 & 2
|
2 & 3
|
3 & 4
|
1 & 2, 3 & 4
|
1 & 2, 3 & 4
|
|
Pentium Overdrive
|
1 & 2
|
2 & 3
|
2 & 3
|
1 & 2, 3 & 4
|
3 & 4
|
|
Note: Pins designated should be in the closed position.
|
|
CPU TYPE CONFIGURATION (CON’T)
|
|
Type
|
JP11
|
JP12
|
JP13
|
JP14
|
JP16
|
|
80486SX
|
4 & 5
|
Open
|
Open
|
Open
|
1 & 2
|
|
CX486DX
|
2 & 3
|
Open
|
Open
|
Open
|
1 & 2
|
|
80486DX
|
4 & 5
|
Open
|
Open
|
Open
|
1 & 2
|
|
CX486DX2
|
2 & 3
|
Open
|
Open
|
Open
|
1 & 2
|
|
80486DX2
|
4 & 5
|
Open
|
Open
|
Open
|
1 & 2
|
|
80486DX4
|
4 & 5
|
Open
|
Open
|
Open
|
1 & 2
|
|
P24D
|
4 & 5
|
Open
|
1 & 2
|
1 & 2
|
1 & 2
|
|
Pentium Overdrive
|
1 & 2
|
Open
|
Open
|
Open
|
1 & 2
|
|
Note: Pins designated should be in the closed position.
|
|
CPU SPEED CONFIGURATION
|
|
Speed
|
JP40
|
JP41
|
JP42
|
|
25MHz
|
Closed
|
Open
|
Closed
|
|
33MHz
|
Closed
|
Closed
|
Open
|
|
40MHz
|
Open
|
Open
|
Closed
|
|
50iMHz
|
Closed
|
Open
|
Closed
|
|
50MHz
|
Open
|
Closed
|
Open
|
|
66iMHz
|
Closed
|
Closed
|
Open
|
|
75iMHz
|
Closed
|
Open
|
Closed
|
|
100iMHz
|
Closed
|
Closed
|
Open
|
|
CPU SPEED CONFIGURATION (80486DX4 ONLY)
|
|
Speed
|
JP15
|
|
2x
|
pins 2 & 3 closed
|
|
2.5x
|
pins 1 & 2 closed
|
|
3x
|
Open
|
|
VESA WAIT STATE CONFIGURATION
|
|
Wait states
|
JP44
|
|
0 wait states
|
pins 1 & 2 closed
|
|
1 wait state
|
pins 2 & 3 closed
|
|
BUS SPEED CONFIGURATION
|
|
CPU speed
|
JP45
|
|
<= 33MHz
|
pins 1 & 2 closed
|
|
> 33MHz
|
pins 2 & 3 closed
|
|