512GB SSD 840 PRO in Lacie rugged SSD

R1PPER

macrumors 6502
Original poster
Oct 1, 2008
305
31
Hi Guys, im currently running my OS and apps from a 120 Lacie Rugged SSD.
I would really like to strip the drive out and replace it with a Samsung 512GB SSD 840 PRO. Ive heard about drop outs? Ive searched google but i cant find anyone thats done this.
Has ayone done this or got any knowledge on the subject?
Thanks.
 
Last edited:

g4cube

macrumors 6502a
Apr 22, 2003
760
13
Hi Guys, im currently running my OS and apps from a 120 Lacie Rugged SSD.
I would really like to strip the drive out and replace it with a Samsung 512GB SSD 840 PRO. Ive heard about drop outs? Ive searched google but i cant find anyone thats done this.
Has ayone done this or got any knowledge on the subject?
Thanks.
You will have problems. the 512GB Samsung consumes too much power.

I've tried with the Samsung, the Micron, and the Sandisk. Short term, it may seem to work, but eventually, you will run into problems.

Someday perhaps, the larger SSDs may consume less power, but for now, too risky unless you don't care about data integrity.

LaCie does offer a 256GB version of the rugged, so you're likely to be ok with that. Mine came with a C400 Micron/Crucial SSD. I've heard that some come with a Sandisk 256GB.
 

macthefork

macrumors 6502
Feb 2, 2013
467
7
Or, you could use one of these to connect your 512GB SSD. It has it's own power (wall wart), so size of the drive won't matter.

I currently use one of these, although now I have a regular 7200 HDD connected at the moment for backups. I did use it to format the 240GB SSD that I installed into my iMac.

This will work, however, you'll need to place foam or something behind the SSD to stabilize it if you want to use it permanently.
 

R1PPER

macrumors 6502
Original poster
Oct 1, 2008
305
31
OK....thanks for the heads up. I think ill go for a lacie rugged 256 and sell my 120. Hopefully Lacie will give us a 512 SSD rugged soon enough.
 

Mike92

macrumors newbie
Jun 25, 2010
6
0
Italy
Sata II works
The LaCie enclosures with Thunderbolt and USB 3 will work with a SATA II (3 G) ssd - I have tried both an older Kingston 512 GB, and a SanDisk 480 GB drive. Obviously speed is not as great as SATA III, but the woork with no problem, and are certainly a lot faster than spinning drives.
 

g4cube

macrumors 6502a
Apr 22, 2003
760
13
OK....thanks for the heads up. I think ill go for a lacie rugged 256 and sell my 120. Hopefully Lacie will give us a 512 SSD rugged soon enough.
Yep. LaCie has had 500GB SSD for awhile.
https://www.lacie.com/US/products/product.htm?id=10599
 

gab0.1992

macrumors member
Jul 24, 2011
53
14
What about the speeds. Few reviews shown they have apparently an maximum speed of aprox 300mbs. It is true?
 

gab0.1992

macrumors member
Jul 24, 2011
53
14
Yep that's what I'm saying.
Looks this topic. A guy use an samsung 840 Evo and he says just a 1/3 of the Evo speeds the enclosure make.

https://forums.macrumors.com/threads/1530395/

I don't think worth to use an impressive SSD for just has such limit speeds.
 

hfg

macrumors 68040
Dec 1, 2006
3,576
281
Cedar Rapids, IA. USA
Yep that's what I'm saying.
Looks this topic. A guy use an samsung 840 Evo and he says just a 1/3 of the Evo speeds the enclosure make.

https://forums.macrumors.com/threads/1530395/

I don't think worth to use an impressive SSD for just has such limit speeds.
Yeah ... there is something wrong with his analysis there ... a single 840 Pro will never get >1000 MB/s! I get close to that with a RAID-0 pair of 840 Pro on a Sonnet Pro PCIe card in my Mac Pro (800 / 956 MB/s) ... but that is RAID-0, not a single disk. Also, some of the newer technology SSDs enjoy lower power requirements, but do so at the expense of overall performance. They employ a small amount of very fast storage with a lot of slower bulk storage (sort of like the Mac Fusion drives). For most users, they will appear very fast, but will slow down somewhat with more taxing operations. They seem to be fine-tuned to do well on the popular speed test benchmarks.

I have some DiskSpeedTests which show the 840 Pro on a SATA-III PCIe card being about 10-15% faster than the same SSD in the LaCie "Rugged". What you gain with the premium SSD seems to be mostly in the "write" speeds, with "read" speeds being somewhat similar.
 

uncanny5

macrumors newbie
Jun 14, 2014
1
0
You will have problems. the 512GB Samsung consumes too much power.

I've tried with the Samsung, the Micron, and the Sandisk. Short term, it may seem to work, but eventually, you will run into problems.

Someday perhaps, the larger SSDs may consume less power, but for now, too risky unless you don't care about data integrity.

LaCie does offer a 256GB version of the rugged, so you're likely to be ok with that. Mine came with a C400 Micron/Crucial SSD. I've heard that some come with a Sandisk 256GB.
I've combined a Buffalo Tech thunderbolt drive with my Samsung 840 Pro and everything has been great for the most part. I pulled the original 500gb drive from the Buff-Tech enclosure and dropped it into another USB3 enclosure from OWC. I used to have problems while running Goodsync where my drive would disconnect part way through syncs, but after some software updates I don't run into that anymore. I have run into a problem with an older iMac (2010, maybe 2009) where file transfers would disconnect the drive via thunderbolt, but if I switched to USB3 everything was fine.
 
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