Kingston V300 60GB

[mvitkun]

I bought a Kingston V300 from amazon to put my OS onto it.

It arrived today and I tested the read and write speeds with CrystalDiskMark and rather than the 450MB/s read and write that I expected,it tested at 410MB/s read (which I could live with) and 92MB/s write.

 

and considering that they advertise it at 450MB/s writes I find this unacceptable.

I'd like to know if maybe there's something I might have forgotten to do which might dramatically improve the performance.

 

I have the drives on AHCI,just about the only other thing I can think of that I could try is changing the sata port,which I plan to do as soon as my WD drive finished formatting.

 

specs

I5 2500K (stock)

Biostar TZ77A

Adata 8GB (2x4GB) 1600mhz

HGST 320GB HDD

WD 1TB HDD

Corsair TX650 power supply

EVGA GTX 480

 

Just wanted to post here before I requested RMA from Kingston or try to exchange it with amazon to see if anybody had any ideas as to why it would perform so much slower,or any solutions I hadn't thought of.

 

If you need any more information just add it as a reply,don't think I missed anything though.

[guas5373]

I did a clean install on my ssd when I first installed it. Did you do a clean install of windows?

[mvitkun]

I did a clean install on my ssd when I first installed it. Did you do a clean install of windows?

No,but I'd thought of that as well,and was planning to try it after the WD drive finished formatting.

I'll post after I reinstall,which should be in about an hour or two.

Any other ideas in case it doesn't help?

[guas5373]

I don't know if this really helps with speed, but these are the optimization tips I follow. It is a guide from newegg: http://www.newegg.com/Product/CategoryIntelligenceArticle.aspx?articleId=291#topic6 Hope this helps.

[Altecice]

Are you using a sata 6 port?

Are you in AHCI mode?

And you realise the reported read/writes are never achievable in the real world right?

[mvitkun]

Are you using a sata 6 port?

Are you in AHCI mode?

And you realise the reported read/writes are never achievable in the real world right?

Yes I'm using a Sata III 6Gb port.

Yes I'm in AHCI, as I said in the original post.

And Yes I realize the reported 450MB/s aren't achievable in the real world,which is why i'm fine with the 400-410 MB/s read.But when they claim a 450MB/s write speed,and I get a 90MB/s write speed that's where it'll be very noticeable,in fact 90MB/s vs 450MB/s is the very performance difference between an HDD and an SSD.

[Altecice]

I suggest you have a quick read through this guide:

http://www.computing.net/howtos/show/solid-state-drive-ssd-tweaks-for-windows-7/552.html

 

see if applying any/all of those changes makes the difference?

[mvitkun]

I suggest you have a quick read through this guide:

http://www.computing.net/howtos/show/solid-state-drive-ssd-tweaks-for-windows-7/552.html

 

see if applying any/all of those changes makes the difference?

all but one of the suggested settings were set correctly already,and the one made no performance difference.

[Altecice]

all but one of the suggested settings were set correctly already,and the one made no performance difference.

 RMA it is your only other option im afraid unless somebody can point anything else we missed?

[brob]

I've read reports that doing a "secure erase" can often correct this sort of problem. Apparently some manufacturers fail to do this on every drive they ship. Check the Kingston support site before doing this. I believe they may have instructions.

[mvitkun]

I did a clean install on my ssd when I first installed it. Did you do a clean install of windows?

no luck,I reinstalled windows and the write scores didn't improve,still at 92MB/s.

the read scores, as expected went down, since the drive became half full.

[brob]

no luck,I reinstalled windows and the write scores didn't improve,still at 92MB/s.

the read scores, as expected went down, since the drive became half full.

 

Read scores should not change.

 

Did you do a secure erase?

[mvitkun]

Read scores should not change.

 

Did you do a secure erase?

The read scores should change,because as the drive gets more full it slows down,and as of now it's half full.

 

No I did not do a secure erase as there was no data on the drive,it wasn't even formatted when I installed it in my system.

[mvitkun]

Read scores should not change.

 

Did you do a secure erase?

Did a secure erase using diskpart clean all command.

still have 90MB/s write speed.

Sent kingston tech support a ticket to see if they can help,otherwise going to RMA or send back to amazon,because at this point it cost more than my 1TB HDD,while still having 70MB/s lower write speed.

[brob]

An SSD is a pure random access device. Reads will always run at roughly the same speed.

 

As to why a secure erase might help, see this article. Then understand that it is possible that the test data written to a drive in manufacturing may not always be erased.

 

Edit: I guess I took too long writing this. It does seem that there is a problem with the drive. Hopefully Kingston can provide a fix. RMA are a real pain.