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Gigabyte Z490 Vision D (Thunderbolt 3) + i5-10400 + AMD RX 580

Boot time might also be affected by the disk in use. Samsung controllers for some reason have trouble finishing up the trim command at boot time and can take forever... I moved from Sasmsung to Western Digital, and my boot time went from over a minute to less than 8 seconds...
Wow, 8 secs? That’s like lightning fast? Which Western Digital model did you use on your build? I have the 1TB Western Digital SN 550 ssd drive which is what I intended to install Mac OS on when I started it. However, that drive does not support APFS format, or at least disk utility did not give me that option when I tried to install on it. Let me know and thanks for telling me!
 
Boot time might also be affected by the disk in use. Samsung controllers for some reason have trouble finishing up the trim command at boot time and can take forever... I moved from Sasmsung to Western Digital, and my boot time went from over a minute to less than 8 seconds...

I have an 860 EVO 2.5 inch (Data), and a 970 EVO Plus NVMe (macOS boot), with a Sabrent Rocket 4.0 NVMe (Win10 boot). I don't seem to see any issues so far. I see TRIM enabled, and so far no accelerated wear either.
 
Boot time takes into account as well the number of apps installed.
I just did a fresh Monterey RC2 to prepare the upcoming macOS12 release and installed again only the Apps I really use (more than 500 were on the disk for purpose test).
It dramatically speed up the boot up to the Monterey screen. Just do a verbose to see how it goes much faster...
 
Boot time takes into account as well the number of apps installed.
I just did a fresh Monterey RC2 to prepare the upcoming macOS12 release and installed again only the Apps I really use (more than 500 were on the disk for purpose test).
It dramatically speed up the boot up to the Monterey screen. Just do a verbose to see how it goes much faster...
My fresh build takes around 1 min and 30 sec to get from the OpenCore picker to the Apple password login page. I don’t have many apps on it since it’s still a fresh build.
 
Wow, 8 secs? That’s like lightning fast? Which Western Digital model did you use on your build? I have the 1TB Western Digital SN 550 ssd drive which is what I intended to install Mac OS on when I started it. However, that drive does not support APFS format, or at least disk utility did not give me that option when I tried to install on it. Let me know and thanks for telling me!
Sn750 and sn850. I like Samsung, I’ve been using them ever since the 840 Evo and I even put a 980 pro in my ps5.

But for macOS, I’ve found incompatibilities over the years. Like at one point the 970 Evo with the original firmware was causing macOS to kernel panic. But that got better when 2B2QEXM7 firmware was released. But macOS boot time can be negatively affected with Samsung controllers.

Open core now has a flag to help mitigate this, known as SetApfsTrimTimeout to set trim timeout in microseconds for APFS filesystems on SSDs. A value of 999 would mean that after 1 second or so, if then trim operation wasn’t completed, then it would be skipped (at boot time).

So that worked in Big Sur but not for me in Monterey. 90 seconds+ to boot macOS was ridiculous in my opinion, as Linux loaded in 3-4 seconds, and Windows 11 was approx 5-6 seconds (with Samsung drives). So I tried the WD SN750 and SN850 with Monterey, and the results have been good thus far.
 
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Sn750 and sn850. I like Samsung, I’ve been using them ever since the 840 Evo and I even put a 980 pro in my ps5.

But for macOS, I’ve found incompatibilities over the years. Like at one point the 970 Evo with the original firmware was causing macOS to kernel panic. But that got better when 2B2QEXM7 firmware was released. But macOS boot time can be negatively affected with Samsung controllers.

Open core now has a flag to help mitigate this, known as SetApfsTrimTimeout to set trim timeout in microseconds for APFS filesystems on SSDs. A value of 999 would mean that after 1 second or so, if then trim operation wasn’t completed, then it would be skipped (at boot time).

So that worked in Big Sur but not for me in Monterey. 90 seconds+ to boot macOS was ridiculous in my opinion, as Linux loaded in 3-4 seconds, and Windows 11 was approx 5-6 seconds (with Samsung drives). So I tried the WD SN750 and SN850 with Monterey, and the results have been good thus far.
@CaseySJ @dehjomz @mntbighker @MacArthur Guys good news! I just reinstalled MacOS on my WesternDigital SN 550 and my fastest boot time so far is 13 seconds. Seems the Samsung 970 EVO is the reason why my boot time is so slow. Looks like the WesternDigital SN 550 NVME SSD fixed the issue. @dehjomz I will definitely take a look at WD SN 850 for my next upgrades since 8 second boot time for MacOS is blazing fast lol! @CaseySJ Do I still need to enable CSM support? Does enable CSM support make my Hackintosh boot faster? Please let me know and thank y'all for the help and support! Thanks again guys!
 
@CaseySJ @dehjomz @mntbighker @MacArthur Guys good news! I just reinstalled MacOS on my WesternDigital SN 550 and my fastest boot time so far is 13 seconds. Seems the Samsung 970 EVO is the reason why my boot time is so slow. Looks like the WesternDigital SN 550 NVME SSD fixed the issue. @dehjomz I will definitely take a look at WD SN 850 for my next upgrades since 8 second boot time for MacOS is blazing fast lol! @CaseySJ Do I still need to enable CSM support? Does enable CSM support make my Hackintosh boot faster? Please let me know and thank y'all for the help and support! Thanks again guys!
Happy to help! Enjoy macOS!
 
My fresh build takes around 1 min and 30 sec to get from the open core picker to the apple password login page. I don’t have many apps on it since it’s still a fresh build
19 secondes to boot from a SSD NVMe with 1 additional SATA SSD and 4 SATA disks
 
@CaseySJ @dehjomz @mntbighker @MacArthur Guys good news! I just reinstalled MacOS on my WesternDigital SN 550 and my fastest boot time so far is 13 seconds. Seems the Samsung 970 EVO is the reason why my boot time is so slow. Looks like the WesternDigital SN 550 NVME SSD fixed the issue. @dehjomz I will definitely take a look at WD SN 850 for my next upgrades since 8 second boot time for MacOS is blazing fast lol! @CaseySJ Do I still need to enable CSM support? Does enable CSM support make my Hackintosh boot faster? Please let me know and thank y'all for the help and support! Thanks again guys!
CSM Support can and should be disabled now. Do you know what firmware version is installed on the slow Samsung NVMe SSD?
 
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