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HP Z640 Workstation

I'm trying to get into the BIOS of a Z640 I just bought. I purchased an HP PS/2 keyboard after my initial issues. After my new round of attempts with the PS/2 keyboard, I still have issues.

 

After boot up, it gives me the option to configure RAID which seems to work fine. After the RAID menu disappears, it goes straight to PXE boot and will not let me boot from internal CD drive, external USB CD drive, or USB flash drive.

I have tried mashing Esc and F10 at startup. It will eventually get a single beep (as if it registered the Esc/F10, I assume), but still doesn't go to the BIOS and goes into PXE boot.

 

I have tried resetting CMOS--remove power cord, hold power button 10 seconds, hold CMOS button 10 seconds.

 

What should I try next?

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