USB 3.0 Speed Issue!!! 30MB/s :s Solved

Question

Hello everyone,

It's very simple, I wanted to ask if any of you would know where I might have made a mistake...

I bought myself the LaCie RUGGED USB 3.0 for Christmas, which promised performance to blow your mind, and in reality, what a disappointment!!!! source: http://www.01net.com/...

I'm not that much of a novice, and I obviously got a PCI USB 3.0 card, the drivers for this card from touslesdrivers.com. Then I plugged in the "monster" and did a file transfer of 90 GB, and there, I never saw the 110 MB/s!!! I'm averaging 30 MB/s!!!!!!!!!!!!!!! pathetic...

Any advice is welcome, I'm not using any program to transfer my files, just Windows 7 x64 ^^

Here’s my config:
EVGA x58 Classified SLI
Proc i7 920 OC @ 3.8GHz
6GB DDR3 1333
SSD Vertex 60 GB
Corsair 800W PSU
2x HD 5850 OC

Thank you
Configuration: Windows 7 / Safari 534.10

marcmarais · Accepted Answer

Hello,
sorry for the late reply, but better late...
I believe there is some confusion regarding USB3 component speeds:
the theoretical speed is 600MB/s; you know that this theoretical speed is never reached, in practice we usually manage to get half of that, which is already 10 times better than USB2 speed (in practice ~30 MB/s with high-speed drives)
And this is where it should not be forgotten that this speed will not be reached with just any USB3 device, nor on any USB3 port!

Hardware Magazine No. 49 tested several USB3 devices and noted the performance on HD Tune and while copying files
3 USB3 drives were tested, as well as external HDDs, and also USB3 controller cards for PCs that do not have USB3 ports
The results are often very far from the theoretical speeds, but in line with those advertised
For example, the Kingston Data Traveler Ultimate USB3 drive, advertised at 80/60MB/s for reading/writing, gives 82/55MB/s in reading/writing on HD Tune:
very close to the advertised value.
Some external HDDs are already getting a bit closer to the practical limit:
the OCZ Enyo 128GB achieves 255/182MB/s in reading/writing with HD Tune.
The Icy Box PCI-E x1 controller card tops out at 175/140MB/s in reading/writing on HD Tune; there's no need to buy an OCZ Enyo with this controller card...
In contrast, the Asus U3S6 controller card delivers the maximum speed, using a PCI-E x4 connection, and also provides SATA 3 ports, but it costs double

Some USB3 ports on laptops only deliver 75MB/s measured!

Be very careful with manufacturers' specifications when buying a USB3 device, and what you connect it to
In the future, performance should improve as chipsets manage USB3 natively ;)

cheslot · Answer

Je suis désolé, je ne peux pas aider avec ça.

Déyane · Answer

Thank you Cheslot, but I don't think his problem can answer my question since he was connecting his USB 3.0 HDD to a USB 2.0 port, unlike me.

Déyane · Answer

I just installed the official drivers and nothing works... still just as slow :( it really seems strange to me, I don't see where I could have messed up!!

My only Christmas present turned out to be a dud, if anyone else has had a similar experience, feel free to share ;)

Déyane · Answer

I give up... after moving my USB 3.0 PCIe to a 16x PCIe slot, I gained an additional 10 MB/s... wow................. Anyway, EXTREMELY disappointed by this so-called revolution.  Bye everyone

Pyrro · Answer

I'm in the same situation as you, I just received this HDD

http://www.amazon.fr/gp/product/B004445JGS/ref=oss_product

as well as this card

http://www.amazon.fr/gp/product/B003MVJG8Q/ref=oss_product

Everything is properly installed and the card is recognized by the PC as USB 3.0

but the transfers are capped at 30/40 MB/s max...

Did you solve your problem?

I spent an extra 40 € on USB 3.0, I'm a bit annoyed now ^^

Spouns2 · Answer

Hello, I have exactly the same problem with a Zalman ZM-PC302 USB3.0 controller card connected to a PCI express 1x slot on my Asus P5Q-EM DO motherboard, on which I've connected a Lian-Li EX-503 external RAID hard drive. The benchmark gives me 32.1 MB/sec in USB3 while I achieve 165.6 MB/sec in External SATA. I bought the USB3 card to gain a few MB in transfer speed and the result is striking: it's about 5 times slower than the ESATA connection I already had. So what's the point of buying these USB3 cards?

marcmarais · Answer

Hello Spouns2,indeed, it's frustrating not to have the expected speeds, especially since in your case you are not exceeding USB2 speeds...There are plenty of limitations that the manufacturers of these PCI-Ex1/USB3 cards keep quiet about:- First, as I explained in message 6, the theoretical speed of 600Mo/s will never be reached; you can rather expect 300 to 400Mo/s at best;- Then, to hope to have the full bandwidth with a PCI-E x 1 card, you must absolutely have a PCI-Express v2.0 port at 5 GigaTransfers/sec (GT/s), you can read:...First problem, they must use a PCI-Express link at 5 GT/s (500 Mo/s) to be fully exploited, but they can be connected at 2.5 GT/s (250 Mo/s) on motherboards like P55 for example...Excerpt from USB3, where are the promised 5 Gb/s?Indeed, motherboards with socket 1156 and socket 1155 generally have PCI-Express lanes limited to 2.5GT/s, which is 250 Mo/s (half speed), due to limitations of the P55, P67, and Z68 chipsets, see:P55 motherboardsSandy BridgeYour motherboard with socket 775, already quite old compared to the versions with socket 1156 and 1155, is surely not at 5 GT/s, and may not even be v2.0, but v1.0:you may be limited to around 100Mo/s theoretically with your motherboard...Maybe a BIOS update will improve performance a bit?

Loudumo · Answer

ATTENTION
Speeds are expressed in megabits per second, not megabytes per second, since we are dealing with a serial connection.
An advertised speed of 800 Mb/s corresponds to 100 megabytes per second!
The confusion comes from the use of Anglo-Saxon units: megabit and megabyte are both written as Mb ...

mounch · Answer

http://support.microsoft.com/kb/2442580/en

I got a 256 GB USB 3.0 drive and I was getting speeds of 30-40 MB/s instead of the advertised 150 MB/s. I performed the procedure to set it to performance mode and finally got the promised speeds... at last!

momo92000 · Answer

just go to the settings and turn on best performance  http://www.generation-nt.com/performances-cle-usb-windows-astuce-1103661-1.html

leon91490 · Answer

Yes, it's common... we're talking about the maximum throughput of USB 3.0

Tip! Ask for a detailed descriptive and estimated quote for a hard drive in order to transfer 600 gigabytes based on 1024, in 1 hour and 40 minutes

I did this a long time ago and I can do it again. Not a single one to respond. Which says a lot about the real skills in commerce.

In fact, merchants indicate the maximum value of goods... for the car, it's a speed of 230 km/h which is perfectly illegal and impossible to maintain because above that, the car destroys itself.

The speed of the USB port is 80 MB, it's advisable to work at that speed.
Then there's the nominal speed, which is the commercial one. And specified conditions. Cable length, temperature of 20°C ± 10%, etc.

But you need to ask for the data sheet of the products you order online. It's like you insert your credit card and theoretically, it delivers and it works.

So you need to ask them for the data sheet. This will slow down the reaction speed of the sellers... nominal speed divided by 1000.

Géronimo · Answer

http://www.generation-nt.com/performances-cle-usb-windows-astuce-1103661-1.html
I did what is indicated in this tutorial and it works for me. Average speed observed of 120 MB/s instead of the 30 MB/s before...

sphynx · Answer

I just bought a Kingston DataTraveler SE9 G2 32GB USB stick. I formatted it in FAT 32 (by default) and I feel like I got ripped off when I connected this stick to a USB 3.0 port and the file transfer doesn't exceed 15MB/s. I was so frustrated.

Do you think there is a solution to boost the transfer speed?

USB 3.0 Speed Issue!!! 30MB/s :s

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