There is no ‘bug’; the support is present on all 2015 MBP models; both 13” and 15”; same goes with desktop models (however it is not in use as it will depend on what type of drive is in the machine..)Yeah you are right but you miss one point.
Natively this Mac mount an ahci driver not nvme, so I think that nvme driver were developed indipendent from the pcie blade install on MacBook ‘15.
At this point I don’t understand why if you have devoloped a nvme driver and you lost time and energy to do it, it not work correctly. For me this is a bug in the nvme driver project by apple. Not a intentional thing, and this is so weird because the implementation of nvme is open source. They could make a simil copy paste of the drivers that Linux use.
This is a simplification, sure, but maybe there is something that I miss
If it's not a bug what do you call the power management management that drain battery in hybernate.There is no ‘bug’; the support is present on all 2015 MBP models; both 13” and 15”; same goes with desktop models (however it is not in use as it will depend on what type of drive is in the machine..)
Apple Proprietary SSDs: Ultimate Guide to Specs & Upgrades | BeetsBlog
Apple’s SSDs are confusing. Are they M.2 drives? What connector do they use? AHCI or NVMe? What drive can I use to upgrade? We have answers. We’ll tell which SSDs work in which MacBook Pros, iMacs, Mac minis and more.beetstech.com
Controller on NVME or socket does not support lower power mode state (I do not know how exactly the EFI functions or the third party drives differ their power management from the stock Polaris units; feel free to dump and compare them if you care..)If it's not a bug what do you call the power management management that drain battery in hybernate.
So, as I'm trying to explain (sorry for my not perfect English) the problem is that Apple has never implemented the standard nvme drivers which allow perfect battery management with APTS.Controller on NVME or socket does not support lower power mode state (I do not know how exactly the EFI functions or the third party drives differ their power management from the stock Polaris units; feel free to dump and compare them if you care..)
Even then with the official standard it appears some NVME protocols do not work perfectly for some cases.So, as I'm trying to explain (sorry for my not perfect English) the problem is that Apple has never implemented the standard nvme drivers which allow perfect battery management with APTS.
Even with Big Sur we don't have energy management as good as the old pre-installed SSDs blades or the NVMEs current in laptops.
This is a very wierd choice, in my opinion, that I don't understand.
The nvme interfaces are open to developers, it is not a proprietary technology, why not use it? Why develop a proprietary standard that not work great like the official standard.
Which isn’t true as the option is there (if it was it wouldn’t be there otherwise..)If they don't want us to swap with nvme ssd they don't give us nvme support on bootroom.
Maybe you are, given a good deal of this is likely still under NDA you may never get your answers in full..I keep thinking maybe I'm missing the point...
Therefore the apple's ssd original is a ahci not a nvme. So I've always been curious to know if the standard AHCI SSDs also had battery management problems. But it is now a dead standard and will remain a mystery.Even then with the official standard it appears some NVME protocols do not work perfectly for some cases.
So despite being an open standard with a given set of technologies there is still input needed from OEM/SI to get it to work seamlessly with their own proprietary components (Apple is not alone in this..)
Which isn’t true as the option is there (if it was it wouldn’t be there otherwise..)
Maybe you are, given a good deal of this is likely still under NDA you may never get your answers in full..
Unfortunately I do not have an A1502 of that MY to test on available to me so I cannot say whether it works well or not (I believe that is the machine you’re looking for?…)Therefore the apple's ssd original is a ahci not a nvme. So I've always been curious to know if the standard AHCI SSDs also had battery management problems. But it is now a dead standard and will remain a mystery.
Anyway, back to the main point : With Montery i read different opinion, do you have problem in hybern state with nvme blades of third party or it works great like other in this forum say ?
( Sorry for the long question about nvme driver but i must understand the question before operate )
APFS should be correct for that install and that drive (no other setup you can do otherwise for an SSD..)Hi guys,
New situation I haven’t found previously in the thread…
I have a mid 2014 13 inch MacBook Pro Retina. The hard drive died so I put in a Crucial P3 using the Sintech adapter. Used USB installer, now have Mojave running fine except for one thing:
When I try to download a file bigger than 2GB it stops downloading and eventually fails right around the 2GB size.
This happens in Firefox and Safari. It also happens in Windows (boot camp).
In Disk Utilities it says it’s APFS. Is this right, or was I meant to format the disk to a different format?
Any other things I could try? Thanks!
What does disk activity/internet activity/other resource usage look like when the download fails? (this is to solely eliminate other factors before buying a new disk..)Edit: what do you mean by monitoring system stats?
Very unusual, so the download speed drops alongside the write to disk speed?CPU and memory are fine. Data received/sec and data written/sec go along with the download speed (about 11MB) until all of a sudden at about 2-2.1GB into the download they drop to zero, then hover around there (up to about 270KB).
I've been able to sync files bigger than 2GB using sync.com (like dropbox) and also transferring from USB. Just can't download from the web.
Yep.Very unusual, so the download speed drops alongside the write to disk speed?
Yep.Smaller downloads work as well? (under 2GB works OK?)
OK, cool, I'll do these. It's good to have a plan!Since you do not have another NVME to test I’d be looking at updating to Big Sur (can install on external partition or another USB; if your firmware is not updated I’d do that sooner given there were some known issues with that era of machine and NVME support..)
Updating the firmware from Micron/Crucial may also be worth looking into (the box should have info into what came into the drive, you can check this against Storage Executive’s stats and update if needed..
Just make sure all your apps you use are compatible.. I believe Mojave was the last macOS to support 32bit apps.. If you use a critical 32bit app that has no 64bit replacement, you might have an issue there.Yep.
Yep.
OK, cool, I'll do these. It's good to have a plan!
It may partially help but it is not a full 100% fix (it depends on the config of SSD and your machine)@natus.w
I was looking at SN770 due to the price but problem, but I wonder if opencore fix the issues such as speed read and write and compatibility with all M.2 NVME
The issue reported was prevalent among Hackintosh machines, but I cannot confirm that this is the case on natively supported machines (even then power consumption stays fairly high so not worth considering if you’re prioritising efficiency)I notice every say SN hynix p31 gold
Most Samsung, isn't good
It may or may not help (some drives may run fine without it, some may need it; it controls a separate parameter)as u mention SsdPmEnabler which, fix the issue for old macbook pro "2014 mid"
I can’t tell without determining what other options are available (the SN770 is a good proven option but you may be able to find something equally as good for less..)What would u recommend?, for price, speed, and compatibility.
i'm using a macbook pro A1398 MID 2014, what NVME SSD should i buy? in your viewsIt may partially help but it is not a full 100% fix (it depends on the config of SSD and your machine)
The issue reported was prevalent among Hackintosh machines, but I cannot confirm that this is the case on natively supported machines (even then power consumption stays fairly high so not worth considering if you’re prioritising efficiency)
It may or may not help (some drives may run fine without it, some may need it; it controls a separate parameter)
I can’t tell without determining what other options are available (the SN770 is a good proven option but you may be able to find something equally as good for less..)
So far I’ve tested the WD SN580 (price at the moment is fair, performance is decent even on a small 2.0x4 interface; it can easily max itself out)i'm using a macbook pro A1398 MID 2014, what NVME SSD should i buy? in your views
Simple outcome, I think I am gonna end up with the Hynix
Simple outcome, I think I am gonna end up with the Hynix
Crucial P3+
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And the surprise winner (for me at this point) is the Hynix
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2600 mb read and write at 2300? I was expecting Hynix to be more or less the same thing as the others but on top of that, with the lowest power draw of all, makes it a no brainer for me.