Interesting. Doesn't sound like "not much" to me.
Anyone tested this in real world conditions?
Loa
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SATA Express meets the '09 Mac Pro - Bootable NGFF PCIE SSD
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Interesting. Doesn't sound like "not much" to me.
Anyone tested this in real world conditions?
Loa
I've alwasys set my drives to NOATIME even on spinners. On Linux systems too. I could feel a slight difference on rotational drives (especially the older/slower drives). I really can't say for SSDs since I've never ran them without NOATIME.
The drive was initialized with Mavericks.
Model MZ-KPU1T0T/0A6
1TB SSUAX
NAND part number is: K9UKGY8S7C-YCK0
Controller part number: S4LN053X01-8030
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there's a typo on the NAND part: it's actually K9UKGY8S7C NOT K9UKGY8S7V.
I'm +/- seeing the same numbers as you do. the curious type I am, installing 10.8.5 right now. will report back.
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I think it’s save to say that MZ-KPU1T0T/0A6 is slower than MZ-KPV1T00/0A2. I’m not getting the numbers Synchro3 is seeing. my benchmarks show the same results as the ones from handheldgames. I don't think that this matters, but Synchro3's PCIe adapter card has a newer revision.
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The PCIe card surface area has increased in the newer revision to support a heat sync. The revision on the PCB was not incremented and still shows version 1.0. I've asked Sintech for clarification for differences on the board.
Synchro's NAND is different.. The ARM CPU is placed on the top to allow for better cooling:
from the one I'm running, which is flipped (not L/R):
Fore reference, this is the side that faces the PCIe adapter on my Flash:
Synchro's NAND is different.. The ARM CPU is placed on the top to allow for better cooling:
from the one I'm running, which is flipped (not L/R):
Fore reference, this is the side that faces the PCIe adapter on my Flash:
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Yes, i think also the MZ-KPV1T00/0A2 is a new revision.
Your numbers are more a less the same as the original Mac Pro 2013 SSD:
http://www.youtube.com/watch?v=B3l88Mas_Hs
Any Mac Pro 2013 owners can confirm this new revision of the PCI SSD?
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Jumping in...
The speeds seen through this A02 revision are absolutely the top seen for any similar device thus far. 1.4GB/s is incredible. I would love to see how this translates when seen in new MBA/MBP/iMac systems that have the OS pre-configured.
We would love to be able to test these different revisions but, unfortunately Samsung cannot comment and Apple won't. As well, we have never been able to establish the right contact within Apple.
It is too bad because publishing an article on this would see a rash of system sales...
The speeds seen through this A02 revision are absolutely the top seen for any similar device thus far. 1.4GB/s is incredible. I would love to see how this translates when seen in new MBA/MBP/iMac systems that have the OS pre-configured.
We would love to be able to test these different revisions but, unfortunately Samsung cannot comment and Apple won't. As well, we have never been able to establish the right contact within Apple.
It is too bad because publishing an article on this would see a rash of system sales...
Followup.....
Just contacted the seller of the A02 drives to see if he might appreciate seeing his link in a report... It would be decent to get one of these in hand...and test it in my MBA/iMac. He would sell a ton I think...
Odd though eh....
Just contacted the seller of the A02 drives to see if he might appreciate seeing his link in a report... It would be decent to get one of these in hand...and test it in my MBA/iMac. He would sell a ton I think...
Odd though eh....
Update..
Just a quick update on my recent problems (low read/write speeds) with the 256GB XP941 in a firmware upgraded 5.1 Mac Pro.
So far i've tried doing a fresh install of Mavericks, because that was what gave me the optimal read/write speeds around 1150mb/s. But now im also getting slow speeds in Mavericks. Also tried doing a clean install of Yosemite with same result.
This is getting really frustrating.
I also tried the AJA system test, just for comparison, which resulted in the same speeds.
Would it be worth trying putting it in slot2? Could it be some firmware settings that have gone bad - in which case, is there a way to reset the disk to the way it was when i got it?
Cheers,
Just a quick update on my recent problems (low read/write speeds) with the 256GB XP941 in a firmware upgraded 5.1 Mac Pro.
So far i've tried doing a fresh install of Mavericks, because that was what gave me the optimal read/write speeds around 1150mb/s. But now im also getting slow speeds in Mavericks. Also tried doing a clean install of Yosemite with same result.
This is getting really frustrating.
I also tried the AJA system test, just for comparison, which resulted in the same speeds.
Would it be worth trying putting it in slot2? Could it be some firmware settings that have gone bad - in which case, is there a way to reset the disk to the way it was when i got it?
Cheers,
It wouldn't surprise me if he doesn't doesn't look for a link, in the case these are sort of grey market sales that Apple and Samsung don't really know about.
I always wonder how these sellers get ahold of supply, and whether it is completely legit or a little bit "this fell off a truck"
I always wonder how these sellers get ahold of supply, and whether it is completely legit or a little bit "this fell off a truck"
Just wondering about this idea that there is a revision in the Sintech adapter. The seller of Synchro's fast one told me that from what he gathered, I couldn't boot from this device
This is the adapter I have
http://www.ebay.co.uk/itm/111433854531?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Should I have any reason to think that I should not be able to boot any version, including a suspected new revision, of the samsung SSD in slot 2 with this thing?
Should I be concerned about having a revision 2 of the adapter? Now I'm getting confused.
This is the adapter I have
http://www.ebay.co.uk/itm/111433854531?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Should I have any reason to think that I should not be able to boot any version, including a suspected new revision, of the samsung SSD in slot 2 with this thing?
Should I be concerned about having a revision 2 of the adapter? Now I'm getting confused.
Attachments
Switching between Yosemite and Mavericks can cause spotlight to reindex. What is in your other upper slot with the xp941?
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The card is not bootable in a PC. A Mac is ok. The new revision includes a change to the surrounding PCB to accommodate a heat spreader.
Partitioning XP941 on OS X
Hi mikeboss, I've just installed a Samsung XP941 in a MacPro 3.1 and unable to partition the drive how did you do this in the end on yours?
Hi mikeboss, I've just installed a Samsung XP941 in a MacPro 3.1 and unable to partition the drive how did you do this in the end on yours?
Have you tried performing a "forced Trim" on the SSD? If you do it after a fresh partition/format that would reset almost the entire SSD, otherwise, it would trim any "unused blocks" you had available. You can do this in Disk Utility or with Terminal commands.
That might speed up the SSD, since you have probably filled it with all your testing and OS loading.
Thank you for the suggestion - i actually ended up trying swapping the disk into slot 2, which gave me the proper read/write speeds back. I'm not sure what went wrong, but at least it's working now. I'll keep your suggestion in mind if this problem returns - thanks though
.Got a Ver 1 of the Apple 1TB SSD with Sintech card.(took 1 week from China to LA)
Same exact numbers as Handheld.
The sintech card has a heat sink but the chips don't make contact. I will add some heat pads in there but guess that it won't make difference up to Synchro's 1400 MB/s Reads.
Odd that the XP941 does 1100 MB/s reads, 900 MB/s writes while Apple 1 TB does 900 MB/s reads and 1,000 MB/s writes.
Oh well, guess we know to look for those Version 2s now.
I wanted to add, adding this to a machine running 5680 or 5690s with lots of RAM and a Titan makes for a CRAZY fast machine that moves like your fingers do. Talk about peeling the years off.
Same exact numbers as Handheld.
The sintech card has a heat sink but the chips don't make contact. I will add some heat pads in there but guess that it won't make difference up to Synchro's 1400 MB/s Reads.
Odd that the XP941 does 1100 MB/s reads, 900 MB/s writes while Apple 1 TB does 900 MB/s reads and 1,000 MB/s writes.
Oh well, guess we know to look for those Version 2s now.
I wanted to add, adding this to a machine running 5680 or 5690s with lots of RAM and a Titan makes for a CRAZY fast machine that moves like your fingers do. Talk about peeling the years off.
that's still better than what you'd get with the new Retina iMac which hits the ceiling @700MB/Sec because it's connected using only two lanes
(with the 1.0 TB SSD, that is).
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that's still better than what you'd get with the new Retina iMac which hits the ceiling @700MB/Sec because it's connected using only two lanes
Definitely a shame on the new iMac and Mac Mini. It would be interesting to see how apple set up the PCIe lanes on Both platforms. In addition to the special PCIe caddy for the Mini, it has a secondary PCIe slot that's used for Wifi/Bluetooth that may have some hidden performance attached to the connector that looks identical to the one on the card from Sintech.
that's still better than what you'd get with the new Retina iMac which hits the ceiling @700MB/Sec because it's connected using only two lanes
I had someone who writes about macs tell me that the iMac SSD couldn't be hobbled by 2 lanes, as 2 lanes = 2G/second bandwidth.
Its a little odd that the r/w on this is exactly half of what the 4 lane connection is getting, isn't it? I'm out of my depth for explaining why I was right and he was wrong. If they put a 4 lane connection on this iMac, they would cannibalise Mac Pro sales I'm sure. The only other explanation I could think of was that they needed room to frankenstein the 5k monitor connection.
a possible explanation could be the number of total PCIe lanes the haswell non-xeon processors provide. it looks like there aren't enough lanes left to connect the SSD with 4 lanes... but i'm not sure about this theory.
here's something to read for that "someone you know" ;-) he would be right if it was PCIe 3.0 which it clearly isn't.
http://en.wikipedia.org/wiki/List_of_device_bit_rates
here's something to read for that "someone you know" ;-) he would be right if it was PCIe 3.0 which it clearly isn't.
http://en.wikipedia.org/wiki/List_of_device_bit_rates
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Help - current purchase advice!
I have read through this thread a couple of times and a lot of the purchase advice from eBay has come and gone, and prices are different each time you look! I was tempted for a 1TB Apple SSD from "sputnik" who seemed to have a bunch of them and which came down to $585 briefly before being closed. Another I was considering was $750 and suddenly they jumped to $1050. Now that the new Macs are using these in quantity, I would think there would be better availability with better prices coming soon.
So my question for those who are watching availability...
If the purchase were to be made today:
-- what is the best source (link) for a 1TB Apple SSD of the faster generation parts?
-- what is the best source (link) for the PCIe adapter card, with/without heatsink?
These will be used in slot 2 of a 2012 Mac Pro 5,1.
Thanks for any suggestions you may have.
-howard
I have read through this thread a couple of times and a lot of the purchase advice from eBay has come and gone, and prices are different each time you look! I was tempted for a 1TB Apple SSD from "sputnik" who seemed to have a bunch of them and which came down to $585 briefly before being closed. Another I was considering was $750 and suddenly they jumped to $1050. Now that the new Macs are using these in quantity, I would think there would be better availability with better prices coming soon.
So my question for those who are watching availability...
If the purchase were to be made today:
-- what is the best source (link) for a 1TB Apple SSD of the faster generation parts?
-- what is the best source (link) for the PCIe adapter card, with/without heatsink?
These will be used in slot 2 of a 2012 Mac Pro 5,1.
Thanks for any suggestions you may have.
-howard
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This is the fast one (1.4 GB/S), but have to wait for new supply: http://www.ebay.com/itm/Apple-Mac-P...=100011&prg=10672&rk=2&rkt=10&sd=301315542126
Direct source for the PCIe adapter card (not eBay): http://eshop.sintech.cn/2013-macbook-pro-air-ssd-to-pcie-4x-adapter-card-p-1026.html
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