Samsung 850 EVO - new install - slow speeds?

Diss

Diss

Diss

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Joined
28 Oct 2002
Posts
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Hi all

Just purchased my first ever SSD (from Overclockers UK) - a Samsung 850 EVO - and then installed Win10.

Installed the Samsung software and ran the tests with the following results:

Seq read : 375
Seq write : 260

Random read : 42617
Random write : 35664

Is this normal? Seems low?

After running the performance optimizer and rebooting the speeds were all very slightly slower than above.

PC setup is ASUS P8Z68-V Pro with the SSD plugged into the Marvell SATA 6.0gbs connector (as opposed to the Intel Z68 SATA 6.0gbs connector)


Should i be expecting faster speeds and if so any suggestions as to how to fix?

Many thanks
 
thanks mattmos

At bootup BIOS it says its 6gbps - so hopefully that ok

if i change ports as suggested will that mess up the windows install or anything?

In the meantime any other suggestions welcome [gonna hold swapping SATA ports for a bit as it means removing graphics card]

cheers
 
darknite said:
I upgraded to windows 10 recently and must admit I saw my SSD speed drop a lot. Thought it was because I upgraded and didn't clean install. I have a 250gb 850 and get those speeds. Was getting way more on win 8.1
Click to expand...

makes me feel a bit happier - sortof :p

might your speeds be due to SATA port being used like me? only if you are using an Intel port then maybe my Marvell port isn't the problem
 
rebooted and looked at BIOS

there is an advanced setting where AHCI is enabled, and also a separate setting for the Marvell controller where AHCI is also enabled - so far so good

still got to try swapping to the intel controller

am curious as to what speeds other win10 users are getting? - just to get a feel as to how far off i am from what i should expect

thanks
 
finally swapped to intel controller - and a big improvement :)

Seq read : 539
Seq write : 513

Random read : 64451
Random write : 59240

are random read/writes still a bit slow???

anyway, thanks all very much for the advice

cheers
 
coupe69 said:
Here's the latest win 8.1 Intel Rapid Storage download link for your board - link

This should install just fine on win 10.

Just for your reference here's a recent crystal disk mark benchmark done on my 512GB Samsung 850 evo.

Click to expand...

thanks - i had followed wazza300 advice and looked on mobo website but the latest versions they had seemed very old and certainly didn't reference win10

am a bit wary as you say "should install just fine" - what happens if they don't - could it break the system or is it something you can just uninstall if speeds get worse?

thanks


EDIT
I found this forum post which some may find useful - i think i may hold out until Intel release the win10 version - just to be on the safe side
http://www.tenforums.com/drivers-hardware/5927-cant-install-intel-rst-program-2.html
 
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