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Chapter 1 General Information 5
Interrupt levels: 15
Keyboard/ PS/2 mouse connector: A 6-pin mini DIN keyboard connector is
located on the mounting bracket for easy access to a keyboard and a PS/2
mouse
Bus speed: 8 MHz
System performance: 325 MHz in 80486 DX4-100 (Landmark V2.0)
Max. power requirements: +5 V @ 2.5 A
Power supply voltage: +5 V (4.75 V to 5.25 V), +12 V, -12 V; for DX4-
100/120 and P24T CPUs, a cooler is necessary
Operating temperature: 32 to 140
°
F (0 to 60
°
C)
Board size: 7.3" (L) x 4.8" (W) (185 mm x 122 mm)
Board weight: 0.6 lbs (0.26 Kg)