Bios Setup Changes - Keysight N9000A Service Manual

Post-Repair Procedures
Post-Repair Procedures

BIOS Setup Changes

There are two settings in the CPU BIOS that must be verified and may require
changing when the A3 CPU assembly or A4BT1 CPU battery is replaced. These
settings need to be correct in order for the CXA Signal Analyzer to boot up and
operate correctly.
• "IDE 2" must be set to #1 in the "Boot priority order"
• "CK-408 Spread Spectrum" must be set to "Enabled"
Changing and saving these BIOS settings requires a USB external keyboard.
Changes to the BIOS are fairly straightforward and should take ~30 seconds.
Verifying Boot Priority
1. Connect an external USB keyboard to one of the front panel USB ports.
2. Turn on instrument power.
3. Confirm Agilent Technologies splash screen comes up within a few seconds as
shown in Figure 14-1.
Figure 14-1 Agilent Technologies Splash Screen
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