SVP200S3/90G weird ATTO result

DNReNTi

Honorable
Apr 26, 2012
7
0
10,510
I just bought a brand new Kingston SVP200S3/90G SSD and I ran some tests on it... i got strange results...
Check this:

ATTO:
http://nt-design.hu/static/atto_svp200s390.jpg

AS SSD:
http://nt-design.hu/static/asssd_svp200s390.jpg

Crystal:
http://nt-design.hu/static/crystal_svp200s390_default.jpg

My config:
GA-Z68X-UD3H-B3
i5-2500K
2x KHX1600C9D3B1K2/8GX

BIOS ver : F12 (latest)
SSD Firmware : 501 (latest)
Intel RST driver installed

TRIM works. Partition align is okey.

The ATTO result is worrisome. :eek: Write speed is fall back after the 32-64 KB...
The AS SSD and the Crystal test are showing slow write speed too.

Why? :/
 
Advertised speeds for your drive are "up to" 535MB/s Read and 480MB/s Write using ATTO software. Your Reads are above advertised specs but something is wrong with your Writes.

Go to Device Manager. Click on Disk Drives. Right-click on your SSD and select Properties. Select the Policies tab. You should see an option that says "Enable write caching on the device". If it’s unchecked then check it and click "ok".
If it’s checked then uncheck it and click ok, then check it and click ok.

Reboot your system and re-run ATTO.

ATTO uses highly compressible data to test Read/Write speeds.
AS-SSD & CrystalDiskMark use highly incompressible data to test Read/Write speeds.

AS-SSD & CrystalDiskMark results will always be lower than ATTO.
 

DNReNTi

Honorable
Apr 26, 2012
7
0
10,510
Done. Same results... :/ Ive never seen any ATTO result like this :/
The write speed reach ~450MB/s at 64 kb data transfer and then fall back to ~250MB/s....
 

aicom

Honorable
Mar 29, 2012
923
1
11,160
Your result makes sense when you think about it. As your scale up the transfer size in ATTO, the probability that the transfer will need to garbage collect is higher. The OEMs perform those tests on empty drives.