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OCZ Vertex 2 - 34nm NAND versus slower 25mm 64Gbit NAND - Page 2

post #11 of 65
Quote:
Originally Posted by sgilmore62 View Post
Do you have write caching enabled for your drive? It's control panel>device manager>disk drives>double click the drive>policies tab>check the box, enable write caching on this device.
Yep, that's turned on. The new 25nm SSD drives from OCZ are a lot slower than the previous 34nm models.
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post #12 of 65
Thread Starter 
Just ran my drive in my sig rig in ahci mode - got better scores but still nothing on the boxes claims.

From the review:

Code:
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read :   180.831 MB/s
Sequential Write :    37.890 MB/s
Random Read 512KB :   174.938 MB/s
Random Write 512KB :    38.042 MB/s
Random Read 4KB (QD=1) :    17.659 MB/s [  4311.4 IOPS]
Random Write 4KB (QD=1) :    38.036 MB/s [  9286.2 IOPS]
Random Read 4KB (QD=32) :    51.710 MB/s [ 12624.4 IOPS]
Random Write 4KB (QD=32) :    38.103 MB/s [  9302.4 IOPS]

Test : 500 MB [K: 29.6% (15.1/51.1 GB)] (x5)
Date : 2011/02/17 11:14:14
OS : Windows 7  [6.1 Build 7600] (x64)
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post #13 of 65
Quote:
For those customers that have already purchased an “E” part and wish to move to a 32 Gbit die
based drive solution, OCZ will offer a program in which customers can trade in their “E” drive
and receive a credit towards the more expensive 32 Gbit die‐based drives. Customers only need
to pay the difference in the raw NAND price and OCZ will ship the replacement drive once the
original “E” drive is received. If you are interested in an exchange please contact an OCZ
customer service representative and we will be happy to assist you.
http://www.ocztechnologyforum.com/fo...OCZ-SSD-drives

As far as I am aware the additional charge for a 32Gbit based drive is $000USD, the charge has now been waved...you pay nothing extra
    
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post #14 of 65
Those benchmarks look just like mine, 80gb though. I just checked and there is no 'E' in the model number .

Quote:
Originally Posted by sgilmore62 View Post
http://www.ocztechnologyforum.com/fo...OCZ-SSD-drives

As far as I am aware the additional charge for a 32Gbit based drive is $000USD, the charge has now been waved...you pay nothing extra
Isn't the 32Gbit only to improve raid with the faster drives?
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post #15 of 65
Thread Starter 
yes - the only reason to go to the 32Gbit ones is if you have existing drives your raiding with and you will gain a tiny bit more space. i believe my 52.1gb would become ~55.6gb or something.....
Speed wise they are the same
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post #16 of 65
Does this issue affect any other brands like G.Skill, Corsair or Patriot?
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post #17 of 65
Thread Starter 
only OCZ atm i believe
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post #18 of 65
With this OCZ incident, believe other will not dare to do this 34nm to 25nm swap silently.
post #19 of 65
I do not believe the product number differs,from the 34nm NAND drives to 25nm NAND drives,I think that's one of the reasons for the outrage,the only real way to tell is by capacity.My drive is 55.8 GB formatted capacity,which means 34nm NAND,thankfully.


Edit: I just red over on OCZ forums that,25nm NAND support was only added in 1.27/1.28 firmware,so if your drive shipped with prior firmware it is 34nm.
Edited by ~CS~ - 2/17/11 at 6:18am
post #20 of 65
What would this mean for raid-0 users with mismatched drives?

Best case scenario is that it defaults to the slower drive speeds but i would assume corruption is more likely
    
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