Keysight PXIe Chassis Family User Guide 131
Restoring the Factory Default 1x8 Base Configuration PCIe Link Configuration
The following steps to restore 1x8 assume a remote controller PC, not an
embedded controller. If you have an embedded controller, steps 1-4 can be
combined into these steps: Power down your chassis, wait one second, and
power up your chassis.
1 Shut down your PC.
2 Power down your chassis and wait one second.
3 Power up your chassis and wait three seconds.
4 Turn on your PC.
5 After Windows is up, start Connection Expert, and verify that the chassis is
displayed. If Connection Expert isn’t able to display the chassis, you will need
to perform the recovery operation described in “Restoring the Factory Default
1x8 Base Configuration” on page 131.
6 Start the chassis SFP by clicking the Connection Expert Start SFP button. This
allows the chassis driver to perform the steps necessary to instantiate 1x8 as
the current chassis configuration.
7 From the SFP and for informational purposes, perform a chassis self test. Self
test should display codes 506 and 537 (and possibly error code 509). For the
messages associated with these codes, see “Self Test Codes and Messages”
on page 146.
8 Restart your PC.
9 Start the SFP, rerun self test, and verify that codes 506 and 507 are not
reported.
At this point, the PCIe Switch Fabric will be the 1x8 configuration. If desired, the
Configurator program can be run again to select another configuration.
Restoring the Factory Default 1x8 Base Configuration
Assume that your PCIe Switch Fabric is currently set to a 2x8, and that you have
an embedded controller that is using the 2x8 configuration. Assume furthermore
that you want to reconfigure the chassis to work with the M9021A Cable
Interface module. In this case, you would run the Configurator on the embedded
controller to select the 1x8 configuration.
If, for any reason, you are not able to run the Configurator program on the
embedded controller in order to select 1x8, the chassis allows you to
preemptively restore the 1x8 Base Configuration. The preemptive restoration
requires pressing a pushbutton internal to the chassis while, at the same time,
restarting the host controller PC to generate the PCIe Reset signal.
For an embedded controller PC, it is typically straightforward to restart the PC
while simultaneously pressing the chassis internal pushbutton because you’re
only interacting with one device, the chassis. For a remote controller PC that may
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