ROG STRIX Z690-F GAMING WIFI (BIOS 4101) disable c1e fixes coil whine

[Trackah123]

Specs :
PSU : Be quiet! Pure Power 12 M 1000W
MB : ROG STRIX Z690-F GAMING WIFI
RAM : Kingston FURY Beast Black DDR5 32GB (2x16GB)
CPU : Intel® Core™ i7-12700K
GPU : ROG Strix GeForce RTX™ 4080 16GB GDDR6X OC Edition

Ever since BIOS 4001 was released for this specific motherboard, i had some type of weird idle coil whine when moving the mouse around and in some other type of idle scenarios, it was quite irritating at times. this BIOS version kept C1E state forcefully enabled.

Luckily BIOS 4101 just came out today and i was able to disable C1E again, and it removed the idle coil whine completely! 😀

If anyone has similar issues with this or other mobo's, try disabling C1E if possible. Just wanted to let everyone know.

[Jsalinger]

Since updating to 4101, wake on lan doesn't seem to work anymore after using it for 2 years. 

Power On By PCI-E is enabled and settings in Windows are on for wol.

Wol does work if I completely power off the machine via the power supply, but only once, after shutdown it doesn't work a second time. 

Can anyone else confirm or deny?

[Jsalinger]

In case anyone else runs in to Wake-On-Lan (WOL) issues with 4101, I switched back to 4001 and WOL began working again as it always had, but could not get it to work properly on 4101.

[Silent_Scone · Accepted solution]

Sounds like expected behaviour. Fluctuation in current, when power states are active, can create types of piezoelectric noise.

PSUs produce their own coil whine. How much depends on the quality, type, specs, and size of the components used. 

As ripple frequency and other sources of power related noise can impact the level of coil whine, some combinations of psu and components may exhibit more noise than others. For a vendor, it is very difficult to account for all permutations.

[weaselciuy]

Yes, i had this happen as well before the intel bios mess started.

I also had a weird coil wine after turning On AMD Noise Suppression gimmick in Adrenaline, GPU went weird. Took me a little to figure it out.

Had to delete driver to stop it, never touching it again. Hope it helps