Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Status
The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.

Pressure

macrumors 603
May 30, 2006
5,182
1,546
Denmark
Why pay so much for a dumb PCIe adapter? I bought an adapter for like $8 and it worked straight away. No issues.
 

MIKX

macrumors 68000
Dec 16, 2004
1,815
691
Japan
Why pay so much for a dumb PCIe adapter? I bought an adapter for like $8 and it worked straight away. No issues.

A fan and or a decent heatsink is essential in Japan where i live.

I bought this here in Japan for about ¥2,000 and adapted a copper heatsink for better heat conductivity.
01 OWLtech box.JPG
 
  • Like
Reactions: bsbeamer

bsbeamer

macrumors 601
Sep 19, 2012
4,313
2,713
Heatsinks are extremely important to use. By the time you total the heatsink and thermal pads with many of the cheap adapters, you can get a "better" adapter that includes everything for nearly the same price.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
Heatsinks are extremely important to use. By the time you total the heatsink and thermal pads with many of the cheap adapters, you can get a "better" adapter that includes everything for nearly the same price.

I see that for most people on a budget, the build quality of a Angelbird Wings don't warrant the price, but we have great options too with much palatable cost, like AquaComputer kryoM.2 and kryoM.2 EVO.

I talked about this before, I bought some adapters from AliExpress that have a so bad PCB that I didn't had the guts to install it in my Mac Pro even after I inspected the M.2 connector for shorts.

The problem with low cost adapters is build quality and PCB design. Most Chinese adapters don't even have the pub traces of the data signals carefully equalised, some have shorter traces, others much longer. I'm not going to even talk about the bad soldering that some of these $5~$8 have.
 

MarkC426

macrumors 68040
May 14, 2008
3,700
2,097
UK
Personally, if I have spent £2-3k on a mac, then added numerous upgrades over the years I am not going to quibble over £30-50 for a good quality card.......;)
It does make me giggle....:D
The last thing I want is something overheating, which is why I really value the expertise of people on the forum.
 

mrtang42

macrumors member
Apr 19, 2019
73
18
Got an adaptor from the local recycling store for only $5. Can someone tell me what make it different since it has some extra component on the board? Power deliver improvement?

Edit: Never mind. It seems they are voltage regulator.
20-104-545-04.jpg
 
Last edited:

marioliv66@

macrumors member
Oct 2, 2017
66
7
France
Hello, would anyone have tried the Crucial P1 CT500P1SSD8 as ssd bootable? At the moment there is an interesting offer and it may be worth buying one. thank you
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
Hello, would anyone have tried the Crucial P1 CT500P1SSD8 as ssd bootable? At the moment there is an interesting offer and it may be worth buying one. thank you
It's not a fast M.2 drive, 500GB has a spec read/write of 1900/950 MB/s, will probably be 1400/750 MB/s with a MP5,1.

I don't remember anyone testing this blade.
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
Anybody get around to testing the WD Black SN750? I'm just curious if they are living up to the hype and how their in house controller is acting in a cMP.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
Anybody get around to testing the WD Black SN750? I'm just curious if they are living up to the hype and how their in house controller is acting in a cMP.
Some models are PCIe 3.0 x2 = 750MB/s with MP5,1. WD carefully hides it with this choice of words:

Screen Shot 2019-05-16 at 01.54.23.png
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
Some models are PCIe 3.0 x2 = 750MB/s with MP5,1. WD carefully hides it with this choice of words:

View attachment 837269
Wow, good eye. That's a no go. I was just curious. I actually ordered two Addlink S70 2TB per crjackson2134's recommendation. They should be here in a few days. I still haven't decided which NVMe to buy for boot drive yet. I'll see how these perform and maybe just go with another one.
 

w1z

macrumors 6502a
Aug 20, 2013
692
481
Has anyone used Samsung's PM983 3.84TB Enterprise NVMe drives with macOS? I'm looking to retire the last spinner from my mac pro.
 

flowrider

macrumors 604
Nov 23, 2012
7,323
3,003
^^^^Since this will be mounted in an SATA bay, performance will be limited. IMO, a less expensive choice might be a better option.

Lou
 

w1z

macrumors 6502a
Aug 20, 2013
692
481
^^^^Since this will be mounted in an SATA bay, performance will be limited. IMO, a less expensive choice might be a better option.

Lou
This is a NVMe drive which comes in 2 form factors - M.2 or 2.5" mounted on a NVMe PCIe adaptor.
 

vatogonzalez

macrumors newbie
Just got my Amfeltec Squid gen 2 (with 16x board) working with 4x Samsung Evo 1TB NVMe on Mojave in my 'ol 4,1 to 5,1 cheese grater. Since Mojave won't boot from RAID 0, got MacOS on one 1TB NVMe (+/- 1400 mb/sec write and 1500 mb/sec read) and the other three in RAID 0 (+/- 3500 mb/sec write and 3800 mb/sec read). Not a whole lot of issues so far. System is purring like a kitten!

For people stressing out over the risks involved with a RAID 0 construction, I've got three fail safes in place:
  1. 2 time machines with 2TB doing the backups in over gigabit LAN
  2. Symlinked folders with important projects to my Dropbox business account
  3. Backblaze continual backup to the cloud of all drives
 

tsialex

Contributor
Jun 13, 2016
13,455
13,602
So do the U.2 PCIe adapters (with a U.2 drive installed) work on a cMP, and could you boot from one?
Yep, exactly like M.2.
[doublepost=1558044935][/doublepost]
https://www.samsung.com/semiconductor/ssd/enterprise-ssd/

"PM983 offers tremendous performance for Read-Intensive data centers by applying PCIe Gen 3, achieving 540K IOPS in Random Read and 3000 MB/s in sequential read speed. Using impressively low power in small form factors (2.5”, M.2), PM983 delivers an efficient SSD solution for mixed data workloads."
The industry standard name is U.2, some drives are not even 2,5” and all use the new SAS U.2 cable/connector.
 
  • Like
Reactions: JedNZ
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.