DELL COMPUTER CORPORATION
DIMENSION XPS XXX MDT II
|
Device Type |
Mainboard |
|
Processor |
80486SX/80486DX/80486DX2/80486DX4/P24T |
|
Processor Speed |
25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
64MB |
|
Cache |
256KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2) |
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CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
C1 |
Serial port 1 |
CN2 |
|
Turbo switch |
C2 |
IDE interface 2 |
CN3 |
|
Speaker |
C3 |
IDE interface 1 |
CN4 |
|
Reset switch |
C4 |
Floppy drive interface |
CN5 |
|
Power LED & keylock |
C5 |
PS/2 mouse port |
J13 |
|
IDE interface LED |
C6 |
Parallel port |
J16 |
|
Serial port 2 |
CN1 |
32-bit VESA local bus slots |
SL1 & SL2 |
|
USER CONFIGURABLE SETTINGS |
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|
Function |
Label |
Position |
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|
|
Factory configured - do not alter |
W1 |
Closed |
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Monitor type select color |
W2 |
Closed |
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Monitor type select monochrome |
W2 |
Open |
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PS/2 mouse IRQ12 enabled |
W3 |
Closed |
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PS/2 mouse IRQ12 disabled |
W3 |
Open |
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CMOS memory normal operation |
W5 |
Open |
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CMOS memory clear |
W5 |
Closed |
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|
Factory configured - do not alter |
W8 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W10 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W11 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W13 |
Open |
|
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Factory configured - do not alter |
W16 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W17 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W18 |
Open |
|
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Factory configured - do not alter |
W19 |
Closed |
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Factory configured - do not alter |
W22 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W23 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W24 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W25 |
Open |
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IDE interface 1 enabled |
W34 |
Pins 2 & 3 closed |
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IDE interface 1 disabled |
W34 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W35 |
Open |
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Parallel port IRQ select IRQ7 |
W36 |
Pins 2 & 3 closed |
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Parallel port IRQ select IRQ5 |
W36 |
Pins 1 & 2 closed |
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Factory configured - do not alter |
W39 |
Open |
|
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Factory configured - do not alter |
W40 |
Open |
|
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Factory configured - do not alter |
SW1/2 |
On |
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Factory configured - do not alter |
SW1/3 |
Off |
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Factory configured - do not alter |
SW1/4 |
Off |
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|
Note: The location of the factory configured jumpers are unidentified. |
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|
SIMM CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
None |
None |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
CACHE CONFIGURATION |
|
|
Size |
Bank 0 |
|
256KB |
(8) 32K x 8 |
|
CPU SPEED SELECTION |
|
|
Speed |
SW1/1 |
|
25MHz |
Off |
|
33MHz |
On |
|
50iMHz |
Off |
|
66iMHz |
On |
|
75iMHz |
Off |
|
100iMHz |
On |
|
CPU TYPE SELECTION |
|
|
Type |
W12 |
|
80486SX |
Pins 2 & 3 closed |
|
80486DX |
Pins 1 & 2 closed |
|
80486DX2 |
Pins 1 & 2 closed |
|
80486DX4 |
Pins 1 & 2 closed |
|
P24T |
Pins 1 & 2 closed |
|
DMA CHANNEL SELECTION |
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|
Channel |
W37 |
W38 |
|
1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
3 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |