Underwhelmed with Evo Pro 840

I'm not sure I find any of the SSD benchmarks of fabulous value; what I see happening is what I live with and my observation is that the Samsung 840 Pro is slower than the Crucial MX100.

maybe something is amiss with the sam setup but if so, its obscure - I've done what Samsung says, with their wizard etc. still underwhelming....
I think I'll punt it to a HTPC desktop or something where I don't have to wait on it with my daily driver

 

Wait Wait Wait.. Is it a 840 Evo or a 840Pro?

Secondly do you have the proper intel RST drivers installed? That might be limiting your speeds...

 

I would be more than happy to help you out.

The 840 PRO would beat the MX100 in every benchmark no questions asked.

Now I need a few details, how did you set it up? did you simply clone your previous drive or was this a clean install?

I also need to know if you are using the default MSAHCI driver or the IRST driver and if yes, which one

Also, did you apple the Samsung Magician OS Optimization tweaks?

 

Hi there.

What is the difference? I am using MSAHCI, and I think my boot time is a bit slow for 840 EVO.

 

The IRST driver offers overall better performance and most importantly better 4K speeds, which is what matters most for what a user would experience in terms of OS snapiness

just a small example for you....

Samsung 850 PRO 256GB with MSAHCI Driver:



Samsung 850 PRO 256GB with IRST 12.8.0.1016 Driver:

 

thank you Ferris!
no it was a clean install, windows 7 x64 home prem.
I did the usual things - turned off hibernation [don't need], turned off pagefile, ran the samsung wizard, which gives some parameters to optimize performance and accepted those.
what else do you reco?

it is indeed 840 pro 128gb
this is a thinkpad x120e - and at the current time, the AMD-supplied SATA driver is botched [well documented and bewailed], so we're far better off with the microsoft driver.
this problem isn't limited to llano afaik - I've seen it on other AMD APU/hudson platforms also.

 

Hmm.. i heard there was a new driver which was released with the Omega 14.12 driver update... Try that and let us know of your scores..

 

What is the maximum SATA interface speed on the X120e? I wouldn't be surprised, given the hardware configuration, if it is SATA 2 (300MB/s).

John

 

Everytime I see someone complaining about bad performance with their Samsung SSD, it turns out they have an AMD Controller

 

Had some time to dig on this a bit more. This issue of AMD vs. Intel vs. Microsoft vs. NVIDIA sata support is old. AMD has been the laggard for years - seemingly can't find a good disk driver guy to hire [ahem....].
It seems that in the notes for Sammy "Magician" they had banned AMD until recently - I don't know if it was the Omega release [latest stable] or prior but they're off the ban list. MS and Intel have been solid all along.

Even still, there is this note of warning in the Magician guide:
"10) Sometimes on AMD PC with AMD and ASMedia storage controllers it was found
that the IOs takes a longer time to complete. In such cases if Rapid was
enabled, it may get automatically disabled due to such IO errors. It may
display "Rapid is in inactive state". User has to reboot the PC to enable the
Rapid back."

 

The problem might be with the controller hardware design (the X120e was designed at a time when SSDs were very expensive and uncommon). Whatever it is, AMD have improved and I observed an acceptable SSD performance result for the Samsung SSD in the Samsung NP905S3G with its Yangzte chipset.

John