Keysight 82351A User Manual page 45

2 Troubleshooting Guidelines
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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.
To perform driver workarounds, you can upgrade the
drivers for devices sharing an IRQ with Keysight,
including, but not limited to, your video drivers, your
LAN drivers, Keysight IDE and/or SCSI drivers, and your
sound drivers.
3 Reconfigure your PC. Configure your PC so as to not
share IRQ lines. Many PCIe cards have bugs when sharing
IRQ lines. You may or may not be able to do this on all
PCs. Many PCs can be configured using the setup option
when the PC is booting.
82351A User's Guide