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Samsung 840 Pro 500GB SLOW read/write

post #1 of 9
Thread Starter 
I've searched numerous threads, tried numerous solutions, and still seem to have this problem. Does anyone have ideas?

What I've tried so far:
Uninstall/Reinstall IRST
Use Marvell/Intel SATA ports
Fiddling with Device Manager, Policies options (Write-caching policy)

I'm about to go reinstall windows to see if that helps. Thanks in advance!

Capture2.JPG 63k .JPG file
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post #2 of 9
Looks normal to me.
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post #3 of 9
Thread Starter 
They seem pretty low compared to the numbers in other threads? for example:

http://forums.anandtech.com/showthread.php?t=2281789
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post #4 of 9
Quote:
Originally Posted by Acturater View Post

They seem pretty low compared to the numbers in other threads? for example:

http://forums.anandtech.com/showthread.php?t=2281789

That's because you don't have a Pro. You have a vanilla Samsung 840 with TLC NAND.
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post #5 of 9
That SSD is not an 840 Pro, it's a standard 840 with TLC NAND.
post #6 of 9
For comparison's sake, benchmarked my Samsung 840 500GB. Here's what I'm getting:

Samsung 840 500GB AS-SSD screenshot
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Core i7-860 Biostar TH55B HD MSI GT 240 1GB GDDR5 Kingston 2x2GB DDR3 1333 
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G.SKILL Phoenix Pro 120GB Windows 7 Ultimate x64 Silverstone ST45SF 450W Silverstone Sugo SG05B 
CPUMotherboardGraphicsRAM
Core i7-860 Biostar TH55B HD MSI GT 240 1GB GDDR5 Kingston 2x2GB DDR3 1333 
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post #7 of 9
You can also tell it's an 840 TLC SSD by the firmware version shown in the AS SSD screenshot (8B0Q), as well as the SSD's capacity (465.76 GB, really GiB.)
post #8 of 9
Could be worse look at mine... that is a pro. It's just running on an old 1156 mobo and total crap marvel controller.
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post #9 of 9
Quote:
Originally Posted by Accuracy158 View Post

Could be worse look at mine... that is a pro. It's just running on an old 1156 mobo and total crap marvel controller.

Ever try your 840 Pro on your board's P55 chipset, Intel SATA II ports?

If I were you I'd do that immediately, your sequential reads will be slower but you'd have higher sequential writes, I bet your 4K read score would be higher, and your overall AS SSD score would be higher too.
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