computer makes noise in sleep mode

[Paul55387]

Why does my computer makes noise in sleep mode?  It beeps.

[austinjplant]

Do you have an external hard drive? This has happened to me ever since I got an external hard drive.

[Raj_05]

Hi @Paul55387,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

If your HP All-In-One Desktop PC 27 is making noise, particularly beeping, while in sleep mode, it could be due to several reasons. Here are some common causes and potential solutions.

BIOS/UEFI Alerts:

• Cause: Some BIOS/UEFI systems are configured to emit beeps for specific alerts, such as hardware failures or issues.
• Solution: Check the BIOS/UEFI settings for any alerts or errors. Updating the BIOS/UEFI firmware might also resolve these issues.

Peripheral Devices:

• Cause: Connected devices (like keyboards, mice, or external drives) might be causing the computer to make noise.
• Solution: Disconnect all peripherals and check if the noise persists. Reconnect them one by one to identify the problematic device.

Power Settings:

• Cause: Improper power settings or a malfunctioning power supply can cause noises during sleep mode.
• Solution: Review the power settings in Windows. Go to Control Panel > Hardware and Sound > Power Options and ensure the settings are correct. Additionally, check the power supply unit for any issues.

Hardware Issues:

• Cause: Internal components like fans or hard drives might be malfunctioning.
• Solution: Run hardware diagnostics to check the status of internal components. HP provides built-in diagnostics tools that can be accessed by pressing F2 during startup.

Operating System Issues:

• Cause: Problems with the operating system could cause beeps during sleep mode.
• Solution: Ensure your operating system is up to date. Sometimes, reinstalling or repairing the OS might be necessary.

Software/Driver Problems:

• Cause: Outdated or corrupted drivers might cause beeps.
• Solution: Update all drivers, especially those related to power management and peripheral devices. You can use the HP Support Assistant tool to check for and install updates.

Wake Timers:

• Cause: Wake timers can cause the computer to attempt to wake up from sleep mode, leading to beeps if unsuccessful.
• Solution: Disable wake timers by going to Control Panel > Hardware and Sound > Power Options > Change plan settings > Change advanced power settings > Sleep > Allow wake timers and set it to Disable.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support