IRQ Assignments
Default Dell-Installed Expansion Card Placement
Table 1 provides the default Dell-installed expansion card placements if a system is ordered with a TV tuner card. Table 2 provides the default
Dell-installed expansion card placements if a system is ordered without a TV tuner card.
Table 1. Default Dell-Installed Expansion Card Placements for Systems with Optional TV Tuner Card or SwapBox
Relative humidity
20% to 80% (noncondensing)
Maximum vibration:
Operating
0.25 G at 3 to 200 Hz at 1/2 octave/min
Storage
0.5 G at 3 to 200 Hz at 1/2 octave/min
Maximum shock:
Operating
left side (for mini tower orientation) and bottom half-sine pulse with a change in
velocity of 50.8 cm (20 inches)/sec
Storage
23-G faired-square wave with a velocity change of 508.0 cm (200 inches)/sec
Altitude:
Operating
–
16 to 3048 m* (
–
50 to 10,000 ft)
Storage
–
16 to 10,600 m (
–
50 to 35,000 ft)
*
At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).
Regulatory Notices
FCC (U.S. only)
Class B
IC Notice (Canada only)
Class B
CE Notice
Class B
VCCI Notice (Japan only)
Class B
NOM O24 Information (Mexico only)
IRQ Line
System Resource
IRQ Line
System Resource
IRQ0
System timer
IRQ8
RTC
IRQ1
Keyboard buffer
IRQ9
Available
2
IRQ2
Enables IRQ8 through IRQ15
IRQ10
Available
IRQ3
Available
1
IRQ11
Default PCI IRQ
3
IRQ4
Serial port
IRQ12
Mouse port
IRQ5
Available
IRQ13
Math coprocessor
IRQ6
Diskette/tape drive controller
IRQ14
Primary EIDE channel
IRQ7
Parallel port
IRQ15
Secondary EIDE channel
1
IRQ3 is available provided that no other device in the computer (such as a modem) is using COM2 or COM4.
2
IRQ9 is available to PCI cards only.
3
The PCI IRQ is assigned to an available IRQ line after an ISA expansion card has been configured. If an ISA expansion card is configured
for IRQ11, the PCI IRQ is assigned to another available IRQ line.
Содержание Dimension XPS T R Series
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