05-01-2018 02:25 PM
My 20LD model of the X1 Yoga 3rd Gen (Intel Core i7-8650U) has a terrible coil whine. This noise comes from around the CPU in the upper right corner of the keyboard, around the F11 key. The noise is a high pitched scratchy noise that seems to occur when the CPU throttles up or down. The noise lessens when running on battery only. The coil whine seems to get louder and more frequent when the laptop is plugged into AC power.
The only way I can completely eliminate the noise is by disabling Intel SpeedStep within the BIOS. However, this locks the CPU to the base speed. This leads me to believe that the coil whine within the X1 Yoga 3 is due to the fluctuations in CPU voltage as workload changes.
I contacted Lenovo, and they immediately sent me a new X1 Yoga with the same specs. Unfortunately, the replacement unit exhibits the same behavior. Has anyone else found this to be a problem? Or did I get two bad units in a row? Anyone know of a fix besides disabling SpeedStep?
05-01-2018 03:30 PM
Maybe the fan? I have one with that CPU and I don't have a noise that I can hear. My first question "is are you under 30 years old"? That may sound like a dumb question, but there are frequencies that tend not to be heard by people over 30 years old. I have a monitor that I really like and there are complaints by some people about whine from built-in speakers and I hear nothing like that. I haven't been under 30 since the U.S. Civil War, which ended in 1865.
05-01-2018 03:37 PM
It's definitely not the fan as you can hear it when the fan is off. It's definitely coil whine from around the CPU. As for your question of age, yes, I'm over 30. Several others could hear it clearly as well.
05-01-2018 10:29 PM
Same here, with the 20LE model of the X1 Yoga 3rd Gen and Core i7-8550U. I'm over 30 too.
I'm already on my second unit. The first one was replaced as DoA, having had really bad coil whine. However, the second one shows exactly the same problematic. Plus a bunch of other basically broken features, which the first one had as well: keyboard backlight flickering, drifting fingerpoint reader. I've already declared this unit as DoA as well, but haven't sent it back yet. I'm not in a hurry, since I'm 99% sure the third unit will have exactly the same problems.
I'm starting to get annoyed about this lack of quality and the broken features.
05-31-2018 08:46 AM
No, the problem is still there. I had Lenovo send a brand new replacement and it exhibited the exact same noise. Absolutely no difference, which makes me wonder if this is a design defect.
07-23-2018 05:57 PM
Hey, I'm sorry to bother you about this problem, but I was wondering if you had ever gotten this issue resolved, since its a few months later. I received an X1Y3 with the i7 8650U last Monday, and I'm noticing coil whine in a lot of scenarios. It's the worst when plugged in, but I do notice it on battery power sometimes as well.
I guess what's throwing me is that a lot of the folks over at reddit.com/r/thinkpad think coil whine is not normal and that I have a faulty unit. My previous laptops were a Surface Pro 3 (my personal computer) and a Surface Pro 4 (for work) and both of these machines operate silently. I really like the laptop but this is bothering me quite a bit and I may just return it since I'm still within that window.
07-24-2018 08:45 AM
Although recent BIOS updates have improved the situation slightly, the coil whine is still there. It's better now when on battery power, but when plugged into AC power, it's still quite loud. I think it has to do with this processor as my previous generation X1 Yoga was an i5 and never had this type of issue. I've heard people with Dell and HP laptops using this same processor have similar problems.