Did anyone test the new 970 EVO drive?
I believe someone did in earlier posts. A search in the thread should help you find it I guess.
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The flashing procedure is well documented in this thread. Basically you dump the firmware of the machine in question, modify it and then flash it back using a special clip and a cheap programmer. Alternatively, you can use the pmset command to disable the power management features that cause a kernel panic on wake. They too are documented in this thread.
The reason we can't simply post up the firmwares for people to flash is A) its copyright Apple stuff, and B) each firmware is married to one particular machine (the ME region) so a machine flashed with a different machines firmware won't run correctly.
However if you don't feel comfortable modifying the firmware, the pmset commands will prevent the machine from crashing at wakeup, however battery drain during sleep will be higher (the machine will never sleep properly)
edit:
My experience thus far with hibernatemode set to 3, was a nearly flat battery the next morning. I have since reprogrammed it to 25, to see if I get better autonomy from the battery while sleeping with the Toshiba XG-5. Else I have a samsung 960 EVO which I can fit, just need to completely wipe it first after backing up as its the boot drive of a hackintosh, and I need to get rid of clover.
Hi, did you have flashed your bootrom before setting hibernate to 25 ?
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Hello,
as a remember :
- NVMe drives work out of the box on any 2015 mac without issue.
- you don't need any BootRom modification, the Bootrom upgrade provided with 10.13 gives full NVMe compatibility
(BootRom modification is only necessary to have full hibernation on 2013-2014 macs)
- Sintech rev.B or C adapters are the only way to go. Avoid at any price any other adapters, they have reboot issues.
- the Sintech adapter is provided with kapton tape insulation
- you will have PCIe 3.0 speed with x4 lanes. Trim of course.
all those NVMe were tested to work :
- Adata SX7000
- Intel 600p
- Intel 760p
- Intel 6000p
- Kingston A1000
- Kingston KC1000
- MyDigitalSSD SBX
- OCZ RD400
- Samsung SM950
- Samsung PM950
- Samsung 960 Evo
- Samsung 960 Pro
- Samsung 970 Evo
- Samsung 970 Pro
- Toshiba XG3
- Toshiba XG4
- Toshiba XG5
- WD Black gen 1
One only particular model of NVMe SSD doesn't work, probably because of a custom firmware : Samsung PM981.
Seems that in the post you refer, the person didn't use a sintech adapter but a know bad adapter (chenyang, known to make kernel panics with samsung drives), and worse, without proper insulation with kapton tape
Hi Gilles,
I read in earlier posts that the module to flash the bootrom was cheap, but the only one I have been able to find so far from France is this one :
https://www.ebay.fr/itm/NEW-EFI-ROM...409462?hash=item4b41bc57b6:g:Z2UAAOSw~mpa4G3b
With a price around 50€, it's not exactly what I call cheap, but I'm having too much problems with sleep to remain that way. If I can get confirmation, I will proceed with the purchase ASAP. I am not near Tour, sadly ;-).
Despite setting my hibernate mode to 0, I still get a blank screen in the morning and waking my rMBP 15" requires powering it down by holding the power button, then booting it with it chiming twice as it fails to read the hibernate dump and then starting from scratch...
Also, do you know where I could find kapton tape here in France, all I see are from abroad, and I only need the one tiny piece to prevent the shield from shorting with the sintech adaptor.
Thanks in advance for your advices,
Best regards,
(another) Gilles
Edit : typo