Hey fellow gurus, here's my issue: Board runs fine, does the OC well (4.5 on my 5930K, running 2x8GB RAM at XMP 3200MHz). System is stable (as in, I did not see any major issues or crashes at all) during use, and doesn't behave differently once it's running. But... Last Friday I started the PC for a short time, shut it down normally. Came back home later in the evening and started up the rig, and the PC only went until it showed error code "B7" on the Qled. So... In the manual it's not listed (reserved for future AMI codes...), a bit of light research points to things like instability with the RAM / OC. But here's the thing: I press the safe boot button which loads default BIOS, and the rig still doesn't get past error code A2 (IDE detect), no post. When I press safe boot a second time right after, the PC boots into post and enters BIOS without issues, reads all the values and has the saved settings applied (just booted with defaults, but runs like set). When I exit the BIOS without saving the PC boots perfectly normal, starts windows, and lets me use the rig (play) without the least issues. So what do you say gurus, what's the culprit here? I could imagine that the mainboard's degrading. I could imagine that the BIOS might be corrupted. Is the BIOS battery getting weak so it isn't able to load the settings 100% afterwards? Is there an issue with power delivery via the PSU? Would it be smart to put in a little more voltage to the RAM and CPU (system agent) because the instability prevents a clean boot? Thanks for any comments, I'm not sure what to do. Since using the PC after it's booted via the before mentioned procedure does work 100% like I'd expect it, I don't think I need to tackle any major issues here, e.g. no new build necessary. I just want to avoid having to use safe boot button twice etc., and not risk any real issues down the road. edit: Here's what exactly happened right now before starting: Pressed safe boot, came into post, but NOT BIOS since it was stuck at A2 while doing so. Another safe boot, posted, went into BIOS, quit it right away (no changes), rig starts and runs fine.