POST Beep symptoms – ThinkCentre - Lenovo Support US

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POST Beep symptoms – ThinkCentre

Symptom

Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST.

Affected Brands

  • ThinkCentre

Affected Systems

  • All

Operating Systems

  • All

Solution

The following table below describes the beep symptoms for ThinkCentre systems:

BEEP SYMPTOM

BEEP MEANING

SUGGESTED ACTIONS

3 short beeps followed by 1 long beep.

Memory not detected.

Investigate memory subsystem.  Ensure that any memory module(s) are properly seated in the connectors.

2 long beeps followed by 3 short beeps.

Video card or on-board video not detected.

Ensure any add-in video card is correctly seated.  Ensure on-board graphics (which may be contained in the CPU) is enabled and functioning properly.

4 long beeps and Error 8998/8999 on the screen.

Not enough shadow RAM resources or PCIe/PCI MMIO resources available.

Remove some add-in PCIe cards to free up necessary resources or change BIOS to UEFI mode to support additional available resources.

2 short beeps.

POST Error.

Review the POST error on screen and take appropriate action based on the POST error code.

Alias Id:SF17-D0060
Document ID:HT505216
Original Publish Date:09/11/2017
Last Modified Date:09/13/2017