Mac Pro 2 times boot up sound since upgrade 10.13.4

[compute]

Hi everyone,

I have a late 2013 MacPro and last week i did a software update to the latest MacOS High Sierra 10.13.4.
When starting up my computer before the update i only heard the boot up or chime sound once...the way it should be. After the update i hear the boot up sound two times (directly following the first one). It does not always do this, i noticed that it usually does this when the comuter hasn't been started up for like a day or so.

I did a hardware test but it came back saying there were no issues or errors found.
Did a SMC reset but to no avail. I also made sure the the memory was well placed in the memory slots (just to make sure) but all seemed ok.

Does anyone have an idea what the reason could be for this problem...again, it only started doing this after the software upgrade, never experienced this before.

Are there any people out there whom have/had the same issue after the 10.13.4 upgrade.

Anny suggestions on how to trouble shoot or solve the problem are most welcome.

Thank you in advance and a nice weekend to all.

 

[h9826790]

I won't be too surprised if you are using APFS.

Anyway, I am totally on the other side, now my Mac has no boot up sound at all with the latest High Sierra

 

[compute]

I won't be too surprised if you are using APFS.

Anyway, I am totally on the other side, now my Mac has no boot up sound at all with the latest High Sierra

Hi thank you for the reply.
Since i'm kind of a noob when it comes to the technical understanding of computers i had to look up what APFS actually is.
I also looked at the general info of my hard drive (SSD) and the format is indeed APFS.
Is this possibly the reasson why i get two start up sounds (meaning the computer boots up two times)...if so, is there a way to fix this or have it start up just like before (the format that used to work instead of APFS).

Thank you for helping.

 

[h9826790]

Hi thank you for the reply.
Since i'm kind of a noob when it comes to the technical understanding of computers i had to look up what APFS actually is.
I also looked at the general info of my hard drive (SSD) and the format is indeed APFS.
Is this possibly the reasson why i get two start up sounds (meaning the computer boots up two times)...if so, is there a way to fix this or have it start up just like before (the format that used to work instead of APFS).

Thank you for helping.

If dual boot up sound is the only issue. I think you better leave it as is. To revert to HFS+, you need to clone the entire OS to another drive (then clone it back if required).