Editing Osborne Executive Troubleshooting Guide (section)

=== Beep Codes ===
* The Executive emits a single beep on successful POST; repeated beeps or silence indicate RAM or ROM failure.

{| class="wikitable styled-table"
! Symptom !! Likely Cause !! Action
|-
| CRT glow, no text || Video RAM, 6845 CRTC, or character ROM || Swap/test 2114 RAM, 6845, and ROM chips
|-
| No beep at all || CPU, ROM, or major logic fault || Check Z80, ROM, and system clocks; piggy-back or swap chips
|-
| Continuous/repeating beeps || RAM failure || Test/replace 4116/4164 DRAMs, check -5V bias
|}