|
XT-12
UNIDENTIFIED
XT-12
|
Processor
|
8088/V-20
|
|
Processor Speed
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12MHz
|
|
Chip Set
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None
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|
Max. Onboard DRAM
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1MB
|
|
Cache
|
None
|
|
BIOS
|
Unidentified
|
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Dimensions
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330mm x 218mm
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|
I/O Options
|
Floppy drive interface
|
|
NPU Options
|
8087
|
|
CONNECTIONS
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|
Purpose
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Location
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Purpose
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Location
|
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Floppy drive interface
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FP1
|
Speaker
|
JP4
|
|
Turbo LED
|
JP1
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Turbo switch
|
JP5
|
|
Keylock
|
JP2
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Power LED
|
JP6
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|
Reset switch
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JP3
|
|
|
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USER CONFIGURABLE SETTINGS
|
|
Function
|
Jumper
|
Position
|
| »
|
Factory configured - do not alter
|
JP7
|
N/A
|
| »
|
Factory configured - do not alter
|
JP8
|
N/A
|
| »
|
CPU type select Intel 8088
|
JP11
|
Closed
|
|
|
CPU type select NEC V20
|
JP11
|
Open
|
|
DRAM CONFIGURATION
|
|
Size
|
Location
|
|
256KB
|
(2) 44256 chips in U4 and U5
|
|
512KB
|
(4) 44256 chips in U3 through U6
|
|
768KB
|
(6) 44256 chips in U2 through U7
|
|
1MB
|
(8) 44256 chips in U1 through U8
|
|
BIOS CONFIGURATION
|
|
Size
|
JP9A
|
JP9B
|
|
8/16KB
|
Open
|
Open
|
|
32KB
|
Closed
|
Open
|
|
64KB
|
Closed
|
Closed
|
|
FLOPPY DRIVE 0 CONFIGURATION
|
|
Size
|
JP10A
|
JP10B
|
|
360KB 5.25"
|
Closed
|
Closed
|
|
720KB 3.5
|
Open
|
Closed
|
|
1.2MB 5.25
|
Closed
|
Open
|
|
1.44MB 3.5"
|
Open
|
Open
|
|
FLOPPY DRIVE 1 CONFIGURATION
|
|
Size
|
JP10C
|
JP10D
|
|
360KB 5.25"
|
Closed
|
Closed
|
|
720KB 3.5
|
Open
|
Closed
|
|
1.2MB 5.25
|
Closed
|
Open
|
|
1.44MB 3.5"
|
Open
|
Open
|
|