MP 6,1 Mac Pro beeps every few hours

[vett93]

My Mac Pro started to beep every few hours today. It beeps 3 times at each episode. The tone is lower in pitch than the beep when it boots.

I did a Google search and some posts suggested that it is related to memory. I ran EtreCheckPro to check the system and the results are fine.

Should I be worried? What could cause the beeping sound?

 

[DeltaMac]

Do you hear the beeps always at the same time, and are they equally spaced from event to event? For example, 2:14, then 5:14, then 8:14, or something similar to that so the beeps occur on regular (predictable) intervals?
Do you hear the beeps while actively using your MP, or is your Mac idle (just sitting, nothing active at that time.
What external devices do you have attached to your MacPro?

What is the result when you run the built-in diagnostics?

 

[leon771]

I have an iMac G4 that does this. Never figured out why. It is the series of SOS beeps to indicate RAM issue.

Machine has never failed and all RAM checks come back good.
It’s been doing this for nearly 10 years.
I just live with it.

 

[vett93]

The beeps seemed to be equally spaced. But I have not checked the clock. I was using the Mac Pro to do some light tasks when I heard the beeps.

I have 3 monitors (1 4K and 2 1920X1200), 2 SSDs, 3 HDDs, 3 USB hubs, 1 webcam, 1 external speaker, Ethernet hub, and one UPS attached to the Mac Pro.

I did the built-in diagnostic just now. It returned with no errors. The reference code is ADP000.

 

[tsialex]

The beeps seemed to be equally spaced. But I have not checked the clock. I was using the Mac Pro to do some light tasks when I heard the beeps.

I have 3 monitors (1 4K and 2 1920X1200), 2 SSDs, 3 HDDs, 3 USB hubs, 1 webcam, 1 external speaker, Ethernet hub, and one UPS attached to the Mac Pro.

I did the built-in diagnostic just now. It returned with no errors. The reference code is ADP000.

ADP000 is the return code for no errors. Did you checked your hard drives, use DriveDX, some HDDs beep when failing.

 

[vett93]

I tried DriveDX and it checked out the internal SSD fine. But my other drives are USB drives. I tried the drivers the website suggested. None of them worked.

 

[vett93]

Update: my Mac Pro has not generated any beeping sound since this morning. I used the Disk Utility tool to scan/repair all drives and found they were all okay.

There was one external drive that Disk Utility couldn't scan first, because it could not be unmounted. I then did "sudo lsof | grep /Volumes/drive", where drive is the name of the external drive. Then I found 20-30 QuickLook processes holding up many files. This is probably a bug in MacOSX. Then I killed QuickLookSatellite and QuickLookUIService processes. Then I could scan this drive.