**Official** Asrock Z68 Extreme4 thread. Share your experiences, OCs & tech issues!

[Ket]

Got few issues with the board which are not related to overclocking.

1. I cannot go into windows when my iPhone is plugged in. I have enabled legacy support for USB 2.0 in efi, so if I disable it I can go into windows when the phone is plugged in. But then I cannot go into efi because the keyboard (g15 v2) doesn't work at POST. But works in windows. Also efi froze when I plugged in the phone while it was in legacy mode. Quite lame, if u ask me. Or, is there something I can do? I think I cannot shutdown the PC when the phone or a flash drive was connected as well. It repeatedly rebooted, but have to confirm this. Former one is a sure thing.

2. I have my headset plugged into the rear audio ports. I was to plug in the speakers as well. I my old board, with alc889, it let me remap the ports for whatever purpose I needed. I could turn the line in port to the speaker out port. A popup dialogbox would come up when I plug in a device, letting me choose what kind of device that was. While the jacksensing seems to work with alc892 on this board as a balloontip showing a new device plugged in comes up, I cannot choose the type of the device. Of course I can plug it to front audio port. (maybe not a problem with the board)

3. Asked this question before but didn't get an answer. Why doesn't it switch to my hd5870 automatically when I launch Crysis 2? Manually stopping virtu from system tray right click menu works fine. I have added the game to the list of supported games as well. Not a big issue, but it should work as advertised. (again, maybe not a problem with the board)

All drivers are from the opening post + sound from asrock site + virtu from their site.

About overclocking. I am starting from the scratch. Need to get 4.5 stable first. 4.5 @ 1.3V wasn't stable as I got an error after 6 hrs of Prime. All settings identical to ket's except vcore and I need the power saving options. Maybe I need a new cooler as well. I though these chips ran MUCH cooler than my i5 750, but i5 750@3.8GHz@1.25V temps and 2600k@4.5GHz@1.3V are identical. I know the settins are favoring the 2600k but I though I'd get better thermals even then.

Any heatsink recommendations over MUX-120 push/pull w/ 1k RPM fans?

1. Enable / Disable Legacy USB so your phone works as it should and switch your keyboard to a USB2/3 port, so it should then work as it should. Basically what I'm saying here is have your phone connected to a USB3 or 2 port, and say if you have the phone connected to a USB3 port, put your keyboard on a USB2 port.
2. Try the latest Realtek generic drivers.
3. Make sure you have the latest Virtu driver. I haven't experienced any problems when the display has been connected to the IGPU when it comes to automatically switching to discrete graphics. I assume you have made sure the discrete graphics are "enabled" in the Virtu CP, and thus available to switch to?