VI Hero - terrible USB performance, USB reliability issues

[lyris1]

Hi all,
My MAXIMUS VI HERO board has been giving me nothing but problems since I got it.
Annoyingly, ASUS' support page does not let me file a ticket, because even that gives an error!

I'm having problems, all relate to USB.

1. My mouse and keyboard will randomly disconnect and reconnect.

2. When I copy a file from my SATA drive to USB3, the transfer works fine for a few seconds but the speed then drops to 0 bytes/sec

After long enough, Windows tells me:

Error 0x8007045D - the request could not be performed because of an I/O error

3. Sometimes when Windows tries to build thumbnails for the video files on the drive, the mouse pointer becomes very slow and the entire machine freezes.

Things I have tried to fix the problem:
* installing latest Intel chipset drivers
* installing ASUS AI suite
* flashing to latest BIOS version
* Loading BIOS optimized defaults
* Turning off Intel xHCI in BIOS

BTW, I have 650w PSU so I dont' think that a lack of juice is the problem. All of the same components (except different CPU and RAM) worked fine on my older Asus Sabertooth board.

[meankeys]

I assume your using the usb 3 connection have you tried the usb 2 to see if its the same? I was having a problem with my keyboard connecting till I started using the keybot port. Is this a fresh OS install?

[lyris1]

Arrrrrrrgh, ASUS' support form doesn't work and their live chat has just gone offline as I'm explaining the problem to them!

[lyris1]

Yes, fresh OS install. I'm using one of the USB2 ports for the keyboard already.

[Cullihall]

I'm having a similar issue. I have Maximus VII Hero board. I connect my HP 128 GB USB stick to USB3 port and it connects and disconnects repeatedly. Works fine in USB2 ports. The odd time it will let me transfer a file but when it does, the speed is down to 50 to 60 MB/s. The stick is supposed to be good for 105MB/s write. I think it's the ASMEDIA driver because I've had the same issue on my Sabertooth 990 board.