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alphaod

macrumors Core
Feb 9, 2008
22,183
1,245
NYC
That sounds perfectly normal to me.

nMP gives PCIe 2.0 x4 lane to the SSD slot. So, the bandwidth is 2000MB/s.

With 20% overhead, that real world max should be ~1600MB/s.

And 12xx / 14xx MB/s seems very normal for a x4 5GT/s connection.

I was actually replying to avatar1349; didn't quote because there wasn't a reply between the two posts when I was replying. :)
 
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avatar1349

macrumors member
Feb 25, 2009
59
14
Netherlands
h9826790 said: [URL='https://forums.macrumors.com/goto/post?id=27288400#post-27288400' said:
↑[/URL]
That sounds perfectly normal to me.

nMP gives PCIe 2.0 x4 lane to the SSD slot. So, the bandwidth is 2000MB/s.

With 20% overhead, that real world max should be ~1600MB/s.

And 12xx / 14xx MB/s seems very normal for a x4 5GT/s connection.

Thanks for the input. tried as "a matter of some sort of test" , without the Samsung Evo 500 GB SSD, the Samsung EVO Plus NVMe SSD on write and read speed and did get exactly what you said it would be, so I dismissed considering bying another controller.
Thanks again h9826790
Screen Shot 2019-04-17 at 13.05.59.png

After updating the firmware on the 970EVO Plus there was a significant improvement and is able to be used as a boot device. Obviously its restricted by the PCIe 2.0 slot, but never the less .... much ... much better!! 970EVO Plus.png
 
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Sharky II

macrumors 6502a
Jan 6, 2004
973
354
United Kingdom
You need to upgrade to 1xx.0.0.0.0 firmwares, 138.0.0.0.0 will make Slot-2 work at 5GT/s for everything and not only Mac Edition GPUs and 140.0.0.0.0 will make your Mac Pro boot from NVMe M.2 blades natively.

After you do all firmware upgrades, all Mac Pro slots will work as 5GT/s. Read the first post of this thread to upgrade your Mac Pro firmware: MP5,1: What you have to do to upgrade to Mojave

Thank you so much for your reply!

Can I ask - is it okay to apply the two firmware updates without updating my OS?

So simply put my GT120 in the computer, download the HS installer, do the firmware install but don't install HS. Then do the same with the Mojave installer?

I don't have a Mojave compatible GFX card (or an airport card, which I think is necessary for HS?) at the moment.

Thank you!
 
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tsialex

Contributor
Jun 13, 2016
13,437
13,582
Thank you so much for your reply!

Can I ask - is it okay to apply the two firmware updates without updating my OS?

So simply put my GT120 in the computer, download the HS installer, do the firmware install but don't install HS.
Ok to upgrade to MP51.0089.B00.

Then do the same with the Mojave installer?

I don't have a Mojave compatible GFX card (or an airport card, which I think is necessary for HS?) at the moment.

Thank you!
Without a Metal card you can't upgrade to 1xx.0.0.0.0 firmwares. AirPort is not checked for macOS or firmware upgrades.

Read the first post MP5,1: What you have to do to upgrade to Mojave.
 

Sharky II

macrumors 6502a
Jan 6, 2004
973
354
United Kingdom
Okay, thanks. It doesn't seem like there's much point for me to do that (I want 138.0.0.0.0 so that Slot-2 works at 5GT/s), so I guess I'll have to wait until I get a Metal card. Running a PC 1GB 5770 currently (I do audio/music).

I haven't had much need to upgrade OS and GFX card, but I this is a good reason to.

Thanks again,

Ed
 

tsialex

Contributor
Jun 13, 2016
13,437
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Okay, thanks. It doesn't seem like there's much point for me to do that (I want 138.0.0.0.0 so that Slot-2 works at 5GT/s), so I guess I'll have to wait until I get a Metal card. Running a PC 1GB 5770 currently (I do audio/music).

I haven't had much need to upgrade OS and GFX card, but I this is a good reason to.

Thanks again,

Ed
Sent you a PM.
 
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Earl Urley

macrumors 6502a
Nov 10, 2014
793
438
Okay, thanks. It doesn't seem like there's much point for me to do that (I want 138.0.0.0.0 so that Slot-2 works at 5GT/s), so I guess I'll have to wait until I get a Metal card. Running a PC 1GB 5770 currently (I do audio/music).

If you are doing a lot of transforms and calculations on your audio and your software is written to take advantage of the GPU, and you're running a Metal GPU, you will see a big difference in the 5.0 GT/sec vs. the default 2.5 GT/sec. In my case, while running BOINC calculations, a standard GPU work unit used to take 2-3 hours to process; with the new BootROMs, a GPU work unit now takes 36 MINUTES. Not guaranteeing that you'll see the same amount of improvement, but I believe you will see something.
 

broadbean

macrumors 6502a
Jun 10, 2007
782
333
In my case, while running BOINC calculations, a standard GPU work unit used to take 2-3 hours to process; with the new BootROMs, a GPU work unit now takes 36 MINUTES. Not guaranteeing that you'll see the same amount of improvement, but I believe you will see something.

Wow, "something" indeed!! :D
 

Sharky II

macrumors 6502a
Jan 6, 2004
973
354
United Kingdom
Logic X is my main app and only uses the GPU for gui stuff.

Still, I really would love the faster pcie slots and faster read/write options, and my PC 1GB 5770 is so old I look forward to grabbing an RX 580 8gb (I’ll eventually get a 4 or 5K screen and have a large 4K FCPX that I’ll be tackling this year) and generally enjoying Mojave and continued Logic X updates!
 

lbhskier37

macrumors regular
Mar 11, 2011
105
12
Does anyone know if the HP EX900 works as a boot drive? They are really cheap on Newegg right now.
 

Eschers

macrumors member
Oct 27, 2015
86
35
ch
Hi guys,

Just had the Samsung 970 EVO PLUS 250GB installed in my system and it crashes every time I try to install Mojave on it, from USB as single storage device or on desktop from second sata-II ssd. Threw in a 970 PRO 512GB and it worked perfect!
 

flowrider

macrumors 604
Nov 23, 2012
7,317
2,998
^^^^I posted this on 4/15/19. post No. 267:

There have been many posts from folks on this forum who have not been getting reliable service from the Samsung Evo Plus. The Plus version shows many kernel panics. The regular Evo and Pro work fine however. This has been verified on many other sites, here's one example:

https://www.tonymacx86.com/threads/...work-spoiler-alert-no-they-dont.270757/page-6

It's even been mentioned on Amazon and Samsung has confirmed the issue.

I'd bee very surprised if your Evo Plus works without issues.

And yes, as h9826790 posted above, Boot ROM 140.0.0.0.0 enabled boot with an NVMe SSD on the cMP 5.1. There is now a later Boot ROM 141.0.0.0.0./QUOTE]

Lou
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
I haven’t noticed any weaknesses... I’m very happy with the drive. It’s used primarily as a clone backup of my 970 Pro. I usually switch off about 1/2 the time making it daily driver, and it performs just as well as the Pro in my case, but realize I don’t really stress my system.

I think it’s at least on par with the EVO, it has a 5yr Warranty and high TBW rating.
I'm getting ready to buy two of those addlink NVMe in 2TB. Will be setting that up in RAID 0 array as a project drive. If I like them, I may get a smaller one for OS too. Probably going to be selling a few slightly used SM951 AHCI after get the NVMe up and running. Thanks for sharing your results.
 
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Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
All these SSD's are essentially the same construction. They have the Phison E12 controller and Toshiba 3D NAND. This combo has been favorably compared in performance as the equivalent of the Samsung 970 Pro.

Inland Premium ($135 for 1 TB at MicroCenter)
MyDigital BPX Pro
Sabrent Rocket
Silicon Power 34A80
Corsair Force Series MP510
addlink S70
Seagate Firecuda 510 (not shipping yet)
Gigabye Aorus
Patriot Viper VPN100
HIKVision C2000
Galax Hall of Fame
DigiFast Ace
KingMax Zeus P3480

My Inland works well in a 2015 15-inch rMBP and a 2013 13-inch rMBP as well as on my MP 5,1 with a kryo PCIe carrier.

Gotta pick up that IOCrest soon.
Your previous post has been incredibly helpful for me. I see the Phison E12 controller/Toshiba 3D NAND combo is quite popular and performs great. I noticed that the specs of a lot of these seem to have a higher TBW rating than the 970 Pro when comparing equivalent capacities. That confuses me because it's my understanding that the 970 Pro is MLC and the rest are TLC so I would think that the MLC would be more durable. Am I missing something?
 

Earl Urley

macrumors 6502a
Nov 10, 2014
793
438
Phison E12's firmware has supposedly optimized write strategies that further enhance TBW figure, but to be honest unless you are downloading the same set of Linux CDs over and over continuously for years and years, the rest of your machine will likely need replacing before your newer generation SSD does.

That appears to apply to all the other newer controllers like the SM2262 as well.
 

tsialex

Contributor
Jun 13, 2016
13,437
13,582
Phison E12's firmware has supposedly optimized write strategies that further enhance TBW figure, but to be honest unless you are downloading the same set of Linux CDs over and over continuously for years and years, the rest of your machine will likely need replacing before replacing your newer generation SSD.
This affirmation is a little problematic, did you ever checked the endurance of the new QLC NAND blades?

For example, Intel 660P 512GB model has 100TB write endurance. My less than 6 month old 970 PRO 512GB already have 12TB writes and I don't use it so hardly, since I have a RAID array of SM951-AHCI for my data.

I already damaged a MLC SSD before, a SanDisk Extreme Pro 240GB that I used for a Fusion drive. A QLC SSD will be so much easier to damage the constantly used cells.
 

Earl Urley

macrumors 6502a
Nov 10, 2014
793
438
Sorry, I was only thinking about these Phison E12s being paired with the Toshiba TLC 3D NAND.

Didn't stop to think about people trying to clean out their QLC NAND, which probably explains why prices on 1 TB and 2 TB 660p's based on QLC are so low.

400 TBW for a 2 TB SSD sounds bleah to me, although my work laptop has several VMs and I update it daily as well as doing gigs of downloads from iTunes et. al. and updating Homebrew, over two years I haven't even cracked 6 TB of writes. But different strokes..

but I'll say yeah don't worry too much about your TLC NAND based SSDs suddenly blowing out like a knockoff no-name tire.. you will have to worry about a MLC/QLC based SSD more though
 

tsialex

Contributor
Jun 13, 2016
13,437
13,582
Sorry, I was only thinking about these Phison E12s being paired with the Toshiba TLC 3D NAND.

Didn't stop to think about people trying to clean out their QLC NAND, which probably explains why prices on 1 TB and 2 TB 660p's based on QLC are so low.

400 TBW for a 2 TB SSD sounds bleah to me, although my work laptop has several VMs and I update it daily as well as doing gigs of downloads from iTunes et. al. and updating Homebrew, over two years I haven't even cracked 6 TB of writes. But different strokes..

For my usage, I'd never use a QLC for my main drive. I'd probably use for a stand-by clone or for archival purposes. Since everyone has a different usage, for some SLC/MLC/TLC/QLC don't makes any difference, but for some it's crucial.

Apple still uses SLC for the Fusion drives and Intel uses SLC for cache on the new blades.
 

Earl Urley

macrumors 6502a
Nov 10, 2014
793
438
Yeah, I totally agree about QLC for boot/main.. but the price keeps going down constantly so it's probably not a bad idea to use for backup.

BTW, Newegg Flash has the Intel 2 TB 660p for only $185 shipped with a discount code:

https://slickdeals.net/coupons/the-mayo-clinic-diet/

At that price, I'll probably also source out a Thunderbolt/USB 3 NVMe enclosure and use that to make bootable backup clones..
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
When looking at two nearly identical current NVMe blades such as the MyDigitalSSD BPX Pro and Addlink S70 both using Phison E12 controller and Toshiba TLC 3D vertical NAND:

The only real differences I spotted besides maybe the firmware driving the controller is the fact that the BPX Pro uses overprovisioning by default. I've read in some cases that could increase endurance as well as performance. Could this essentially be done on the S70 by simply partitioning the blade with unused space, or is that not really the same thing as one that comes overprovisioned?
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
SSD prices predicted to fall below 10 cents a Gigabyte by the end of the year. In addition, the drop in NVMe prices will finally begin to drive the prices of SATA SSD's down further. One step closer to the inevitable obsolescence of mechanical hard drives and eventually the end of SATA as well.
 

MarkC426

macrumors 68040
May 14, 2008
3,690
2,093
UK
Are you seriously saying you could get a 256gb ssd for $25 by the end of the year.....................:eek:
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
Are you seriously saying you could get a 256gb ssd for $25 by the end of the year.....................:eek:
Actually, the article I was reading specifically stated the process of eventually phasing out the lower capacities ultimately making 512GB the new entry level standard. I wouldn't be surprised if most 128GB and 256GB models hit an all time low price within a year.
 
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