So recently decided to turn my hand to overclocking my 5820k and instantly run into a problem. Basically the problem is this. Went into the bios, adjusted the voltage and multiplier as you do. Booted into windows and my SBZ was not detected & the control panel said "no supported hardware found". Tried to uninstall and reinstall the drivers, same "no supported hardware found". Went back into the bios, went back to stock and rebooted, soundcard is back. It behaves the same if you don't disable the onboard audio (Although that seems to just be a thing with x99/sbz https://forums.overclockers.co.uk/posts/30576157/). Searching I can find lots of posts about sbz not being detected, but nothing about this. It's in one of the X1 slots, the slot cleary works as it's fine at stock. The gpu is fine and stills operates at pci3.0 x 16, only the soundcard does the disapearing act. Sound card is gone from device manager as well. I don't have any other pcie x1 devices to try. Manual makes no mention of slots being disabled of similar when overclocking. It does have a molex on the bottom of the board for the pcie, but the manual says it's for when using multiple gpus. I don't see why the soundcard should need it and only when overclocking, same amount of power going to the pcie regardless. Board is on the latest bios (f22). Any ideas? Edit because I don't want to double post: So it's working now. I have no idea why, maybe the creative was just playing silly games, we'll have to see. Only things I did different. Move the multiplier alone to see if that triggered it, it didn't. Adding the voltage after, was still ok. Only other thing that was different is: on offest mode, for some reason it starts at -0.2XX and you have to hold + untill to cycle it all the way back to 0, before getting a + offest. First time I actually hit + then typed 0.100, and while it accepted it, the soundcard stopped. This time I just held + and waited. I really have no idea if or even why either of these would make a difference, but it's fine now. There are lots of reports of the sbz doing that, so maybe it was just being dumb.