What beep codes could indicate a system board or power supply failure?

Solution (By Examveda Team)

Beep codes are used by computers during the boot process to indicate various hardware errors, including system board or power supply failures.

Steady short beep: This can indicate various issues, including motherboard or power supply problems.
No beep: Typically indicates a power supply or motherboard issue, as the system may not be starting up properly.
One long continuous beep tone: Often indicates a power supply or motherboard failure, as the system cannot initialize properly.
Steady long beeps: Can indicate critical motherboard or power supply failures that prevent the system from booting.

Therefore, all of the provided beep codes (steady short beep, no beep, one long continuous beep tone, and steady long beeps) could indicate a system board or power supply failure, making Option E the correct answer.