Assistance - Calling all Samsung EVO owners

bliss · 13 Feb 2015 at 21:06

ED209 said:
post them up here, would be interesting to see the results

have they given you anything to try yet or are they just collecting data?

I'll post them once I've collected a few. No noticeable difference as of yet.

Nothing. They just told me they're collecting data and testing things internally. I was told that there is currently no plans to release a firmware to address these issues again.

John24 · 13 Feb 2015 at 21:34

Dervious said:
Much earlier than that, in fact.

I think your confused, I'm taking about when this issue was first reported. Which was here on 05/08/2014.

John24 · 13 Feb 2015 at 21:39

~Mike~ said:
I didn't realise that.

Yep, I see they have now added a link to this OcUK thread on OCN and the petition page since I mentioned it here!

John24 · 13 Feb 2015 at 21:45

bliss said:
I've never been able to get such a straight line with my tests. Looks more like a seismograph readout lol.

Did you also set it to Full Test and set the windows power mode to full performance? Make sure there is nothing else accessing the drive during the test aswell. Booting into safe mode is a good idea if you have a lot of background processes running.

EDIT
Are you sure TRIM is working? Does running performance optimisation in samsung magician improve the graph?

If you've done all the above with no improvement to the graph I'd be curious to see if a secure erase helps. It would be the only case where other methods have failed to fully restore performance and a secure erase was required.

Raiden85 · 13 Feb 2015 at 22:47

When benching with HD Tune I get better results, as well as a straighter line if I run something that keeps the CPU at full speed. When the CPU speed fluctuates so does the results.

I just keep Pocket Tanks Deluxe game running the background while I bench as it barely uses the CPU, but it never lets it clock down from it's turbo boost speed.

John24 · 13 Feb 2015 at 22:58

Just change the power plan to high performance

~Mike~ · 14 Feb 2015 at 10:38

John24 said:
Yep, I see they have now added a link to this OcUK thread on OCN and the petition page since I mentioned it here!

Not to burst your bubble but that was down to me.

John24 · 14 Feb 2015 at 12:06

~Mike~ said:
Not to burst your bubble but that was down to me.

I hate to burst your bubble but I didn't think it was down to me

bliss · 14 Feb 2015 at 13:12

John24 said:
Did you also set it to Full Test and set the windows power mode to full performance? Make sure there is nothing else accessing the drive during the test aswell. Booting into safe mode is a good idea if you have a lot of background processes running.

EDIT
Are you sure TRIM is working? Does running performance optimisation in samsung magician improve the graph?

If you've done all the above with no improvement to the graph I'd be curious to see if a secure erase helps. It would be the only case where other methods have failed to fully restore performance and a secure erase was required.

Full test is enabled and power mode at full performance. I haven't tried using Safe Mode yet. Trim is also enabled. Running performance optimisation showed no improvement.

However, the post below yours mentioned keeping the CPU at full speed, did help to smooth out the graph. Not as much as some as I'm starting to show signs of degradation.

Both result are with the CPU at idle to keep the results accurate for Samsung.

Feb 7th

Feb 14th

John24 · 14 Feb 2015 at 13:24

Setting power mode to full performance keeps the CPU from downclocking and is better than just loading the CPU because other option in the power plan have an effect aswell.

Just noticed something, in your HDTune screenshot is says ATA next to the drive name, that suggests your running in IDE mode and possibly don't have the latest storage drivers installed.

Changing to AHCI and installing the latest drivers may help smooth the graph out but you definitely have degredation.

bliss · 14 Feb 2015 at 13:36

John24 said:
Setting power mode to full performance keeps the CPU from downclocking and is better than just loading the CPU because other option in the power plan have an effect aswell.

Just noticed something, in your HDTune screenshot is says ATA next to the drive name, that suggests your running in IDE mode and possibly don't have the latest storage drivers installed.

Changing to AHCI and installing the latest drivers may help smooth the graph out but you definitely have degredation.

I had noticed that. I can confirm that AHCI is enabled in the BIOS for all my drives.

Intel chipset drivers are quite old as they've stayed the same since I built this PC. Do I need to uninstall old one's first before installing new ones? Or just overwrite? Not sure on the correct routine for them.

edit: Just doubled checked drive mode in Samsung Magician.

ED209 · 14 Feb 2015 at 14:18

Bliss, everything seems fine

John24 · 14 Feb 2015 at 16:30

bliss, you should just be able to overwrite drivers. Uninstall is only recommended when changing hardware. Even then you can get away with it.

If magician is reporting enabled then it's probably just a HDTune odity. To know for absolute sure you could check in device manager.

One other thing you could try is temporarily change to the standard W7 AHCI driver and see what happens with the performance.

Right click the storage controller in device manager, properties, driver tab, update driver, browse my computor, let me pick, select the standard driver click next and reboot.

Andy7 · 14 Feb 2015 at 22:45

Some of you guys really need to chill out. Honestly some of you are going on like you have lost a Million Pounds. I have a Samsung Evo and have no problems with it.

Beggs74 · 14 Feb 2015 at 23:07

I'm seeing a very similar pattern to what others have reported on my evo.
It seems to be running perfectly well since I used the performance restoration tool, I will monitor and report back in this thread.

The only thing that's puzzling me is the drive seems to cap at a consistent 400 mb/s. People seem to be able to get 500 mb/s +, can anyone think of a reason mines running at 400?

Terrier_Jimlad · 14 Feb 2015 at 23:37

Beggs74 said:
I'm seeing a very similar pattern to what others have reported on my evo.
It seems to be running perfectly well since I used the performance restoration tool, I will monitor and report back in this thread.

The only thing that's puzzling me is the drive seems to cap at a consistent 400 mb/s. People seem to be able to get 500 mb/s +, can anyone think of a reason mines running at 400?

Have you definitely got it plugged in to some decent Intel SATA ports and not some crappy Marvell SATA ports?

Beggs74 · 15 Feb 2015 at 00:00

Terrier_Jimlad said:
Have you definitely got it plugged in to some decent Intel SATA ports and not some crappy Marvell SATA ports?

Deffo Intel, Marvel controller has never been switched on.

wazza300 · 15 Feb 2015 at 00:21

how full is the drive? and install latest mb bios and intel rapid storage drivers

double check your in ahci mode for the sata ports,you should be by default but check anyway in the bios

ED209 · 15 Feb 2015 at 10:58

well here are my results after 2 weeks of running windows 10 and doing a secure erase.

new SSD

old SSD

so far still looking ok, only time will tell

Rroff · 15 Feb 2015 at 13:33

Beggs74 said:
I'm seeing a very similar pattern to what others have reported on my evo.
It seems to be running perfectly well since I used the performance restoration tool, I will monitor and report back in this thread.

The only thing that's puzzling me is the drive seems to cap at a consistent 400 mb/s. People seem to be able to get 500 mb/s +, can anyone think of a reason mines running at 400?

Change the benchmark block size to 8MB - on a lot of systems 64K (default) won't go above about 400MB/s. (I think it depends on your CPU power states and some other things).