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BIOS Settings
User BIOS Password When set you must enter this password to get to the
Keysight splash screen. If you do not enter the password, the M9037A will not
boot. If the User BIOS Password is set, then the Administrator BIOS Password is
disabled.
Please see more information at
PCIe Boot (Holdoff) Time
You should not need to change the PCIe Boot time. However, some PXIe
instrument modules may take longer to be ready for enumeration than the PXI
link ready requirement of 100ms. Consequently, it is possible for some controllers
to enumerate the chassis before all of the individual modules are ready and
therefore not enumerate them. If you have a situation where Keysight Connection
Expert and/or the Windows Device Manager consistently do not find specific
instrument modules when the chassis powers up, increase the wait time (valid
range is 0 to 60 seconds). Configure this from the Ad vanced BIOS screen > Holdoff
Timer.
PCIe Wake
The M9018B, M9019A, and M9010A PXIe chassis assert the PCIe WAKE signal
on the PCIe cable when they power on. This signal propagates through the PCIe
cable to the M9037A embedded controller through the front panel PCIe port. If
the M9037A BIOS has PCIe Wake set to Enabled, turning on these chassis will
also result in the M9037A embedded controller turning on. If this behavior is not
desired, you must disable this BIOS setting.
The factory default is enabled.
Configure this from the Ad vanced BIOS screen > PCIe Wake.
Restoring Defaults (User Set or Factory Defaults)
There are two types of stored default settings. They are
- Factory Defaul t Values: The initial optimal setting that were shipped with the
- User Defaul t Values: You can modify the BIOS settings and save them to
Keysight M9037A PXIe Embedded Controller User Guide
M9037A from the factory. Both the User Password and the Administrator
Password are cleared.
memory and restore them when needed.
Do not use the 64-bit BIOS settings with a 32-bit OS. Attempting
to do so prevents the controller from completely booting. To
recover, reboot the computer and enter the BIOS; reset all values
to Default.
"BIOS Password"
on page 62.
Using the Controller
35
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