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Samsung 840 Pro ... gone bad ?

post #1 of 8
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Have a look ...



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post #2 of 8
Thread Starter 
Any thoughts on why this drive performance is so poor and why the Samsung Magician is not reading it as a Samsung Drive? Can this be corrected ?
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post #3 of 8
Quote:
Originally Posted by brewermoe View Post

Any thoughts on why this drive performance is so poor and why the Samsung Magician is not reading it as a Samsung Drive? Can this be corrected ?

Is that on your M4A77TD board? From memory, the 770 chipset doesn't have SATA III 6Gb/s ports. What SATA controller are you using? Have you tried connecting it to one of the AMD ports?
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post #4 of 8
Thread Starter 
No, its on a Crosshair V Formula on port 1 and a WD Black 1T on port 2 atm. Sorry I haven't taken the time to update my profile.
I have another 840 Pro (256G as well) in my laptop (ASUS G55V) and it scores 1100 on AS SSD and hits 552/520 !
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post #5 of 8
Quote:
Originally Posted by brewermoe View Post

No, its on a Crosshair V Formula on port 1 and a WD Black 1T on port 2 atm. Sorry I haven't taken the time to update my profile.
I have another 840 Pro (256G as well) in my laptop (ASUS G55V) and it scores 1100 on AS SSD and hits 552/520 !

Yes well, I don't think you'll be seeing the same speeds as you get in your presumably Intel laptop. Your random 4K results appear to be on the low side for a Pro, though, and it's weird that your SSD isn't recognized by Magician. Have you tried just using the Microsoft AHCI driver?
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post #6 of 8
Thread Starter 
Update ...
I pulled the drive out of the Crosshair V and put it in the G55V, did a fresh W7 install w/SP1, updated the drivers and installed Samsung Magician .... AS SSD score of 978, I/O's and 4K are a little low ... now I will run the Magician tricks ...
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post #7 of 8
This table is from the Samsung Magician 4.0 User Manual, check the Driver Support table:



So we can see for the record that the Magician 4.0 software is not supported on AMD chipsets with apparently any driver.

I cannot believe that the Magician 4.0 software is supported on the obsolete NVIDIA driver, and I assume they really mean the also obsolete NVIDIA SATA chipset! Some mother board manufactures used the NVIDIA SATA chipset on some of their older AMD CPU boards, but the NVIDIA SATA chip has not been available for several years.

Frankly, this only confirms what I have suspected for a while now, that AMD's SATA implementation is not meeting the SATA standards, or is not up to date, sorry to say.
post #8 of 8
Thread Starter 
Unbelievable !!! Funny though, Magician recognizes the drive when its in an external enclosure on the Crosshair board.
Well that explains the Magician anomalies, but it stills doesn't explain the poor performance on the Crosshair V board. I havn't tried the using the Microsoft AHCI driver as suggested yet.
This drive runs along the specs on the ASUS G55VW laptop, scored just under 1,100 on AS SSD but only 640 on the Crosshair.
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The uPgrader!!
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Optical DriveCoolingOSMonitor
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