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Windows 7: Usb 3 Speed

24 Sep 2012   #1

windows 7 home premium 64 bit
 
 
Usb 3 Speed

Hi
I recently bought a USB 3 flash drive and was curious why I was only getting 32mb/sec read and about 20mb/sec write speed. Could it be that my usb 3 slots are not really usb 3?
Thanks!
jake

My System SpecsSystem Spec
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24 Sep 2012   #2

Windows 7 Professional 64bit SP1
 
 

What model flash drive is it? Not all flash drives are created equally
My System SpecsSystem Spec
24 Sep 2012   #3

windows 7 home premium 64 bit
 
 

ADATA
It had good reviews on Amazon, here's one of them
CrystalDiskMark 3.0.1 x64 (C) 2007-2010
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 105.141 MB/s
Sequential Write : 24.829 MB/s
Random Read 512KB : 98.336 MB/s
Random Write 512KB : 3.133 MB/s
Random Read 4KB (QD=1) : 12.806 MB/s [ 3126.3 IOPS]
Random Write 4KB (QD=1) : 0.078 MB/s [ 19.0 IOPS]
Random Read 4KB (QD=32) : 13.026 MB/s [ 3180.1 IOPS]
Random Write 4KB (QD=32) : 0.075 MB/s [ 18.4 IOPS]

Test : 500 MB [H: 34.1% (5.0/14.7 GB)] (x4)
Date : 2012/07/08 20:17:16
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)

Take it for what it's worth. As you can see, 4k write speeds are extremely low, but all of the read speeds are excellent for a flash drive
My System SpecsSystem Spec
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24 Sep 2012   #4

Windows 7 Professional 64bit SP1
 
 

Are you using the USB 3.0 ports ran by the Intel chipset, or a 3rd party one? That will make a difference. Also, I see you are using the Thermaltake V3, but can you give me a link to the exact one on say, Newegg?
My System SpecsSystem Spec
24 Sep 2012   #5

Windows 7 Professional 64bit SP1
 
 

Are you using the USB port on the back of your computer, or the ones in the front of the case? If you are using the ones in the front of your case, they are USB 2.0. If you are using the ones in the back, make sure you have it plugged into one that is actually 3.0, because that motherboard has 2.0 and 3.0 rear USB ports. The 3.0 ports should be blue.
My System SpecsSystem Spec
25 Sep 2012   #6

windows 7 home premium 64 bit
 
 

Ok thanks!
I didn't know the blue ones are usb3. I was plugging in the front. It seems from the literature from the intel board that they had 2 in front as well as 2 in the back.
Sure enough I got around 80-85mb/sec read but only about 20 on write still a big improvment
Thanks so much!
The case # is vl80001w2z. I believe it is the intel chipset as I looked in device manager and looked at the drivers I don't know if it means anything (I am a novice) but it did show the intel drivers
Jake
My System SpecsSystem Spec
25 Sep 2012   #7

Windows 7 Professional 64bit SP1
 
 

The Intel board DOES have front panel USB 3.0, your case, however, does not. If it did, it would come with a single cable with a fairly wide 19-pin connector that would plug into the blue connector on the right/front edge of the board. Most updated cases these days come with a couple of USB 3.0 front panel ports, when you are in the market for a new case, make sure it has that so you can take advantage of it. Glad we got you straightened out though, sounds like those are some pretty decent speeds.

Kelly
My System SpecsSystem Spec
26 Sep 2012   #8

windows 7 home premium 64 bit
 
 

Thanks again for your help
Too bad i hadn't known about that initially, I would have gone with a more expensive case.
Jake
My System SpecsSystem Spec
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 Usb 3 Speed




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