Corsair Neutron GTX Getting Slow Reads Where Data is Present

[rwpritchett]

Hello all,

 

I just recently purchased a Corsair Neutron GTX 240GB SSD. Of course, when you get something new that's supposed to be fast you want to measure how fast it really is. I've run all the popular benchmarks and have noticed something that doesn't look right.

 

ATTO, AS SSD, and CrystalDiskMark all show the drive performing as it should. However, the benchmarks that show the read speeds with respect to location on the disk (HDTach and HD Tune) appear to be very alarming. Only the empty area of the SSD are getting the speeds I should get. Where there's data, I'm only getting about 150 MB/s.

 

Here it is with 80GB data:

http://i179.photobucket.com/albums/w319/rwpritchett/Forum%20Pictures/Corsair%20Neutron%20GTX/CorsairNeutronGTXHDTach80GBFull_zps199e2117.jpg

 

Here it is with 110GB data:

http://i179.photobucket.com/albums/w319/rwpritchett/Forum%20Pictures/Corsair%20Neutron%20GTX/CorsairNeutronGTXHDTach110GBFull_zps37842d4b.jpg

 

http://i179.photobucket.com/albums/w319/rwpritchett/Forum%20Pictures/Corsair%20Neutron%20GTX/CorsairNeutronGTXHDTuneRead_zpsa2a70beb.jpg

 

Is there something wrong with my drive? I'd like to know before my return window closes.

 

I've attached the other benchmark results that look normal to this post.

[Toasted]

No, nothings wrong with the drive, the ATTO benchmark is fine.

 

Corsair uses ATTO to determine the drive performance so you should only use that to benchmark the drive.

[rwpritchett]

Any Neutron GTX owners out there that can run HD Tune or HDTach and post if they are seeing similar results with their drives?

[Darkmana]

Any Neutron GTX owners out there that can run HD Tune or HDTach and post if they are seeing similar results with their drives?

 

Here are my HD Tune results.

[canthearu]

OP, are you running full disk encryption of some kind?

[rwpritchett]

No encryption. I originally cloned my 80GB Intel SSD over to this new drive. Upon seeing the low performance, I wiped the drive using Disk Parted and did a fresh install of Windows 8. The pictures I posted are from the reinstall. I've even let it sit overnight to allow TRIM or garbage collection to do it's trick. No change.

 

I can't figure out why the drive would perform so poorly where the data is sitting. So what's the consensus? RMA time?

 

BTW- thank you Darkmana for posting your benchmarks.

[Yellowbeard]

Your ATTO score looks perfect. If your drive is stable, I see no issue here. No 2 benchmarks are going to be the same and it seems you are basing your RMA decision on a tool used to test HDDs, not SSDs.

[Darkmana]

My suggestions would be:

1. Verify if AHCI is enabled

2. Disconnect other drives

3. Disable other SATA interfaces

4. Benchmark it

 

If the problem still there:

5. Secure erase the drive

6. Create a new partition and format it

7. Benchmark it (of course, from another drive)

 

If everything is OK:

8. Install Windows

9. Benchmark it again

 

Finally, you can also:

- Update chipset drivers (or even uninstall them)

- Update the BIOS/UEFI

 

Hope this might help.

 

PS:

 

Your ATTO score looks perfect. If your drive is stable, I see no issue here. No 2 benchmarks are going to be the same and it seems you are basing your RMA decision on a tool used to test HDDs, not SSDs.

 

I agree with Yellowbeard. By the way, you should completly disconsider HD Tach, it is outdated. Attached are my AS SSD results, with yours are better, even on Read.

[rwpritchett]

1. AHCI is already verified.

2. Will try this and post back.

3. Will try this and post back.

4. Will post back result.

 

5. Already secure erased using Disk Parted, but I may try again.

6. Will try and post back.

7. Will try and post back.

 

8. We'll see...

9. We'll see...

 

Chipset drivers and BIOS are as updated as far as they can go. I have a spare board laying around. I might bench this drive on a different board to see if the problem could lie there.

 

@ Yellowbeard- my concern is down the road when this drive get's 60-80% full, will it be running at the slower speed? It appears ATTO and the other benchmarks are hitting the drive in blank cells that are benching at 500+ and that's why on average they look OK since my drive isn't very full. I'm going to fill this drive up to 80-90% and run all benchmarks again to see if there this occurs with ATTO and the rest of the normal SSD benchmarks. About 3 or 4 blu-ray mkv's ought to do it.

[Yellowbeard]

@ Yellowbeard- my concern is down the road when this drive get's 60-80% full, will it be running at the slower speed? It appears ATTO and the other benchmarks are hitting the drive in blank cells that are benching at 500+ and that's why on average they look OK since my drive isn't very full. I'm going to fill this drive up to 80-90% and run all benchmarks again to see if there this occurs with ATTO and the rest of the normal SSD benchmarks. About 3 or 4 blu-ray mkv's ought to do it. Stay tuned.

 

Think about how an SSD works. You aren't truly benchmarking the portions of the SSD that have data written to them. You can't...because they have data written to them. Ignore benchmarks that are made for HDDs. Just use your drive and enjoy it.