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1991-10-29
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55 lines
FYI
Note: The origin of this information may be internal or external
to Novell. Novell makes every effort within its means to verirfy
this information. However, the information provided in this
document is FOR YOUR INFORMATION only. Novell makes no explicit
or implied claims to the validity of this information.
TITLE: Resolving IRQ Conflicts
DOCUMENT ID#: FYI.P.6013
DATE: October 29, 1991
PRODUCT: NetWare Lite
PRODUCT VERSION: All versions
SUPERSEDES: NA
SYMPTOM: NA
ISSUE/PROBLEM
Resolving IRQ Conflicts
A unique interrupt level (IRQ) must be assigned to your network
interface card (NIC). Each manufacturer's NIC card is unique in
the available interrupts it offers (refer to the network card's
manual to determine its interrupt options). The following table
may help in selecting an interrupt option that is not currently
being used in your system. It is also possible to get a specific
reading of your interrupts from a computer utility program.
IRQ XT AT (286,386,486)
----------------------------------------
0 - TIMER OUTPUT 0
1 - KEYBOARD
2 EGA/VGA EGA/VGA
3 COM2 COM2
4 COM1 COM1
5 HARD DISK LPT2
6 - FLOPPY DISK
7 LPT1 LPT1
8 - REAL TIME CLOCK
9 - -
10 - -
11 - -
12 - -
13 - COPROCESSOR
14 - HARD DISK
15 - -
NOTE: For best results you should try and use a free IRQ. If the
chart shows that you are using all possible interrupts, it is
possible that your enthernet or other NIC card may use an
interrupt that is already being used. ie ... many programs do not
address LPT1 on the interrupt level, hence if you have no free
interrupts it is possible to assign two functions to the same
interrupt.