usb speed

[tikka1968]

I have a VGC M1 desktop it has 5 usb 2 ports but they are all set at low speed how do I set them to high speed

[seb21__]

Yeah, it's a fake from Sony. I have 3 USB 2.0 Ports on my Laptop. But the reality is : Only on of them is an USB 2.0 Port.

[kee-lo_]

[seb21__]

Yeah,

The other both are only connected with the USB 2.0 Port (like a Hub)
I think your desktop VAIO has the same ****, tikka.

[kee-lo_]

I know the front ones are USB2, as I plugged in my Maxtor USB2 drive.

[seb21__]

check this with SiSoftSandra or Everest Home Edition. Then you see which are USB 2.0 ports.

Or start the Systeminformation tool and make a look by "components", "USB".

USB\ROOT_HUB20 = USB2.0
USB\ROOT_HUB = USB

The USB\ROOT_HUB20 use an extended Host Controller and the USB\ROOT_HUB use an universal Host Controller.

The extended Host Controller has his own power supply and the universal Controller get his energy from the extended Controller.
That's the same like a USB Hub which you use, if you not have enough USB Ports.

max 500mA on the extended Controller
max 100mA on the universal Controller

[kee-lo_]

Ah I see

[seb21__]

(out of topic)

I've noticed the a MemoryStickPro isn't faster as a MemoryStick.

True, If you write data on the MemoryStick. The MemoryStickPro is faster.
But if you read data, both have the same speed. LOL

[kee-lo_]

I think it's because it's only USB 1.1

[seb21__]

I have a build in MemoryStick slot in my VAIO.

If I formating my 256MB MSPro Duo, I need approx 3-4 seconds. My 64MB MS needs approx 10seconds.

But if I copy a file (same size) from the Stick to the HD, both Sticks needs the same time.

Mmmh, strange:smileycool: