User`s guide

131
Troubleshooting Guidelines
Troubleshooting GPIB Interfaces
Check BIOS/
Interrupts Settings
If IO Config reports finding an 82350 card with Serial Number ffffffff, this is
typically caused by PCI cards not properly configuring. Try the following
steps. If these steps do not work, remove and re-install the 82350 and then
reconfigure the card.
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. It should not be set to Running Windows 95, Running Windows
98
, Running Windows 2000, or PnP O/S
2 Upgrade your system BIOS to the latest version. New computers
oftentimes have newer BIOSs available.
3 If your computer locks up or freezes after installing. This is typically
caused by interrupt conflicts with other drivers in the system. PCI
allows sharing of IRQs, but this also means the drivers for cards which
share an IRQ must be handling interrupt chaining properly. Both NT
and Windows 9x allow multiple drivers to install interrupt service
routines (ISRs) for a single IRQ. The OS keeps a list of all the ISRs
installed for each IRQ.
When the IRQ is asserted, the OS calls each ISR in turn until one of
them returns TRUE (meaning that it handled the interrupt). The ISR’s
responsibility is to correctly return TRUE if its device was interrupting
or FALSE if not. Drivers that return TRUE, even though they did not
service the interrupt, will cause problems. Try the following steps to
perform driver workarounds:
# Upgrade the drivers for devices sharing an IRQ with Agilent,
including, but not limited to, your video drivers, your LAN
drivers, Agilent IDE and/or SCSI drivers, and your sound
drivers.
# For Windows NT, Click Control Panel | Devices. Select the
HP350i32. Select Startup... and set to System instead of the
default
Automatic. (Running IO Config will set this back to
Automatic.)
# For Windows 9x, change your BIOS Installed OS setting.
Try all the different values and use the one that works. For
Windows 9x, make sure all devices sharing an IRQ with your
card have drivers installed.