USB 3.0 speed issue

[Funky]

ASUS p9x79 main-board. i73800 cpu, 5770 vid card, Antec p190 case (has two pws 500 and 600).
1 SSD Samsung 250 gig SATA 3   200 gig wd.  blue-Ray  DVD burner all SATA.
Running operating system (ESATA BlacX thermaltake docking station) on my Samsung SSD)
two Kingston Data Traveler 100 G3 USB 3.0 drives  bought different times at different stores one 16 gig the other 32 gig
Window 7 pro. with Disks

I've had this problem with my USB 3.0 speeds
with usb 3.0 I can't get more than 7mbps transfer speeds
in windows explorer file transfer.

i should go over what i have done so far to try to fix.

 1. Loaded brand new copy of win7 from scratch on Samsung 250 gig SSD drive

2. Updated the latest Bios for my main-board

3. Loaded Asmedia XHCi latest USB 3.0 driver

4. Tried both USB 3.0 drives on different USB 3.0 ports

5. Tried them both on USB 2 too.

6. Tried every combination of file transfer SSD-usb3 usb3-usb3 etc.

7. Checked the legacy support check it 4 ways on off usb3 on off usb2

8. Windows device manager set XHCi do not have advanced mode can't change anything

9. Took board back they did diagnostic on it said nothing wrong.

10. Crystal Mark bench-marked it at 148mbps. but I can't get real speeds over 7mbps

Any help would be appreciated Thanks

[recovering disk space, attachment deleted by admin]

[Salmon Trout]

Allegedly only the back USB ports support 3.0

http://www.tomshardware.co.uk/answers/id-1633493/asus-p9x79-usb-connection-coolermaster-storm-enforcer.html

Did you reset the CMOS?

http://www.tomshardware.co.uk/forum/323323-30-asus-p9x79-ports

http://forums.anandtech.com/showthread.php?t=2280972

[Calum]

148MB/sec is the read speed, the sequential write speed from your benchmark is 22MB/sec.  As you're not doing sequential writes, you're writing tons of smaller files, expect closer to the 512k write speed, which is 1.3MB/sec.
Kingston quote a 40MB/s read speed (you, puzzlingly, seem to be getting over triple that) and 10MB/s write speed, so you're achieving more or less exactly what I would expect.  I see no problem here, other than the USB drive you have is pretty slow.

[Funky]

Thank you Calum
Thanks for helping me on this.
I do have one question more I think is kinda related to this
I hope this doesn't sound stupid
USB 3.0 speeds are supposed to run in the gigabyte per second.
Where do they get off claiming they can get those speeds and yet
only give us  mps, or have I gotten it wrong?
Again thanks

[patio]

The speeds advertised for USB 3.0 are maxx...what you wind up with is determined by the devices involved...

[Computer_Commando]

Kingston does not specify transfer speeds for the Data Traveler 100 G3.  When they don't specify, they are usually slow.  I never buy USB drives unless they specify speed.
http://www.kingston.com/us/usb/personal_business#dt100g3

http://www.kingston.com/datasheets/dt100g3_us.pdf

Fine print on website says:  "Speed may vary due to host hardware, software and usage."

[Calum]

They specify 10MB/sec as the write speed, but you're correct, the fine print does say that, which implies it may be less under less ideal situations.

The 4.8Gb/sec speed is the maximum speed USB3 can reach.  The device itself will have a maximum speed, in this case 10MB/sec, which is determined by its controller and the speed of the flash on the drive.  In between, you also have the USB3 controller which can affect the speed, too.
So basically, not every USB3 device will get 4.8Gb/sec due to these limitations, just as not every USB2 device gets 480Mb/sec and not every SATA3 device gets 6Gb/sec.  In this case, the fact that the drive supports USB3 is basically marketing, it's barely any faster at best than USB2 would support so it serves no real useful purpose being USB3 compatible.
It's worth checking speeds on USB drives before you buy as they vary massively, expect to pay more for a faster drive as always but don't expect that just because it's USB3, it will be fast.