Quote Originally Posted by skitt View Post
Okay, I reassembled the machine. The only setting I see in the UEFI is "Onboard HD Audio" as shown in this screenshot. It was enabled by default, but I'm still not having any sound and a constant high pitched buzz emitted from whatever audio output device I try to use.
Try placing a copper heatsink over the Realtek audio IC, this will limit electronic crosstalk and might solve your issue.

Quote Originally Posted by radier View Post
I did not make myself clear enough.
My external HDD has got LED. It becomes Blue when USB 3.0 mode is active (back ports), and Green when USB 2.0 mode is on (front ports). It's not simply performance issue. I would call it fake USB 3.0.
It could simply be a compatibility issue. Check to see if there are any updated firmwares for your device.

Quote Originally Posted by eGGe86 View Post
I got a very noobish question, but has to get a answer before I get my rig (tomorrow):

About the drivers, which one (or all of them) should I install after I've installed Win7 64bit? I'm looking at this page Asrock homepage. Or is the driver package at the first post here in this thread enough and contains all the necessary drivers?

Thanks alot for your help!
Get all the latest drivers from the necessary sources (Asrock don't have the latest drivers listed on their site) and install in this order;

Chipset (PCH) drivers
Etron drivers
Graphics drivers
Audio drivers

Then just install any other drivers for any other devices you may have.