Question about HP Compaq dc5100 Small Form Factor PC Desktop
6 Beeps: Keyboard controller / gate A20 failure
Explanation: The keyboard controller is a chip on the motherboard that communicates with your keyboard. It also controls the A20 gate that provides access to the high memory area (HMA). This component is indicating a failure.
Diagnosis: This is usually a problem with either the keyboard or the motherboard.
Troubleshooting the keyboard is relatively easy; try that first.
Troubleshoot the keyboard controller.
Troubleshoot as a motherboard failure.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309
Posted on Jun 14, 2009
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Posted on Jan 02, 2017
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