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Troubleshooting Guidelines 2
82350B Installation and Configuration Guide 37
If Data Transfers to Devices Fail
If devices attached to your ISA (82341) GPIB card
are detected, but data transfers to those devices
fail, this is usually caused either by an IRQ conflict
with another card or by your system having no
IRQs available for this card. If no IRQs are
available, the IRQ value shown in Connection
Expert will be -1.
For Windows XP/Vista/7: Try changing the IRQ
setting to other values. You must reboot after
changing the value to test it. If none work, you will
have to free up other IRQs by disabling devices
such as serial ports or sound cards.
If Connection Expert Finds 82350 Card with Serial
Number ffffffff
If Connection Expert reports finding an 82350 card
with serial number ffffffff, it is typically caused by
the PCIe card are not properly configured. Try the
following:
1 Check BIOS Setting. For Windows NT, make
sure the BIOS Operating System setting is set to
Not PnP OS or to Running Windows NT or to
Other.
2 Upgrade your system BIOS to the latest
version. Note that even new computers often
have newer BIOSs available.
3 If your computer locks up or freezes after
installing. Typically, this is caused by interrupt
conflicts with other drivers in the system. PCI
allows sharing of IRQs, but this also means that
the drivers for cards with which the 82350
shares an IRQ must handle interrupt chaining
properly. Both NT and Windows 98 allow
multiple drivers to install interrupt service
routines (ISRs) for a single IRQ. The operating
system will keep a list of all the ISRs installed
for each IRQ. When the IRQ is asserted, the
operating system will call each ISR in turn until