Max 5 mbps write speed on USB 2.0 and USB 3.0

[Mr_T_Stickman]

Okay, I recently bought a new computer, the HP Envy h8-1427a with i7 3770 and I installed a EVGA Nvidia GTX 650 and replaced the power supply with a 500w one.

Anyway, I have been told that USB 3.0 is amazingly fast such as 500 mbps and so I was interested and bought a TDK Platinum USB 3.0. Got back home and placed it in the blue USB 3.0 port (I've tried all ports after to check if it was just that port but same thing happens) and tried it out by copying an 4GB file to the usb.

Here's where I am trying to figure out. When writing to the usb, it jump down from 50 mbps to barely 6 mbps after about 5 seconds. I then waited for it to finish and then I decided to cut and paste the file to my documents folder to see what the reading speed (I think that's right).

The 4GB file just literally disappeared and popped up in the Documents folder. I didn't even see the transfer loading window. Now please help or tell me why the writing speed was atrocious.

Thanks for future help. :3

 

[Pinhedd]

Many "USB 3.0" branded storage drives are anything but. There's a lot of cheap Chinese crap on the market.

 

[vmem]

does your drive look like this:
http://www.priceme.co.nz/TDK-LoR-Metallic-USB-3-0-16GB-PLATINUM-specs/pd-886730079.aspx

it seems to be a very new product, and honestly it could be a faulty drive, I'm not sure. I can't find any reviews on the product, and the company doesn't list transfer speeds on their specs sheets, which is generally a bad sign

a simple test for your USB 3.0 port would be to plug in a USB 2.0 device, and see if it performs better vs USB2.0. USB2.0 is a major bottleneck, and most drives can actually transfer faster if plugged into a USB 3.0 port. for instance, my USB 2.0 drives max out at 10mBps (big B for Byte, when people say 500mbps, they mean mega BITs, there are 8 bits in a byte, so it's really ~125 megaBYTES per second). anyway, if I plug the same drive into a usb 3.0 port, it'll max out between 25-30 mBps

 

[Mr_T_Stickman]

Thanks for replying guys. I decided to try two other USB's that were 2.0 in all of my USB port but all still only get around 6mbps. :/ I have updated everything through Windows updater but I heard that program was a bit wonky. Could it be bad drivers?

 

[Pinhedd]

Thanks for replying guys. I decided to try two other USB's that were 2.0 in all of my USB port but all still only get around 6mbps. :/ I have updated everything through Windows updater but I heard that program was a bit wonky. Could it be bad drivers?

No, it's almost certainly a crappy chip.

 

[Mr_T_Stickman]

Okay so I have done a few test's and figured some stuff out. First off, I have connected multiple devices to the usb and saw how they went.

Wireless Keyboard and Mouse- Maximum range I can get between them and the USB connector is about half a meter.

Usb 2/3 storage devices- Both only write about 6mB/s and USB 3 reads fast.

Wired mouse- Not problems here.

Also I was going through some hidden updates on the Windows updater and found Intel Series 7 chipset for storage. I have tried multiple time to install this but it fails everytime.

Hope this give some more info on the situation.

 

[Rackabajsarn]

@vmem: For a guy who finds it necessary to explain the difference between bit and byte, you're a little light on the Mnm's, you just wrote millibyte instead of megabyte And furthermore 500/8=62.5 MB/s