HP LTE Notebook PC 5250 LTE 5000 Family of Personal Computers Maintenance and - Page 276
System Interrupts, The MultiBay ISA Expansion Base is designed in accordance with ANSI
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Relative Humidity: Operating 20 to 80% Nonoperating 5 to 90% Altitude: Operating 10,000 ft 3048 m Nonoperating 30,000 ft 9144 m Shock: Operating 5 G, 11 ms, half sine Nonoperating 140 G, 2 ms, half sine Vibration: Operating .25 G, 10 to 500 Hz sine .25 octave/min sweep Nonoperating .75 G, 10 to 500 Hz sine .5 octave/min sweep Heat Dissipation Btu/hr kg-cal/min Monitor Support 55 lb 25 kg (maximum) The MultiBay ISA Expansion Base is designed in accordance with ANSI specifications (number X3.131-1993, Revision 10h) and IEEE 802.3 specifications. Chapter 8.9 System Interrupts Table 8-17. System Interrupts Hardware IRQ System Function IRQ0 Timer Interrupt IRQ1 Keyboard IRQ2 Interrupt Controller Cascade IRQ3 Unused IRQ4 Infrared Serial Port (COM 3) (default) IRQ4 RS232 Serial Port (COM 1) (default) IRQ5 Audio (default) * IRQ6 Diskette Drive IRQ7 Parallel Port (LPT 1) (default) IRQ8 Real-Time Clock (Not on ISA Bus) IRQ9 Unused (Except by optional MPEG) IRQ10 Unused (Network Interface in MEB default) ** IRQ11 Unused, available for PC Card