08-06-2018 05:50 PM - edited 08-06-2018 06:04 PM
I too have this problem after updating my bios to 5QCN22WW. I thought it was my video card driver at first then checked memory performance and ending process that was taking to much memory. Still no luck until I flashed back the previous bios.
Edit. Didn't realize there was 4 pages on this topic and on the second page was the solution. Went back to 5QCN19WW and all is fine.
08-09-2018 05:59 AM
So glad I decided to reach out to this thread. I was nearing my wits end troubleshooting the laptop -- it was only through trial and error that I stumbled on to this.
What's sad about this is that something was that was supposed to be an improvement is a detriment. Even worse, I haven't found an apology exisiting from Lenovo.
You'd think with the amount of people who have this issue, they would do something professional like apologize to consumer.
12-21-2018 02:59 AM
Updated to 5QCN23WW from 5QCN19WW. 19 is still faster but 23 is okay.
Also, I do not recommend reverting back to 19 after installing 23. I had a bios error saying that a certain package cannot be found. My laptop, once it starts hibernating, heats up and my screen doesn't turn on. Installing 23 solved these issues.
02-21-2019 01:31 PM
This link is provided earlier in this thread;
Remember, you may need to go into the BIOS first and ensure that it allows you to revert/downgrade.
Additionally, has anyone been able to test out BIOS version 5QCN23WW, and see if the issue is on going or not? I don't want to attempt to update to it and have the same issue again.
04-10-2019 05:47 AM
To downgrade you have to do two things. First you have to reboot into the BIOS/UEFI settings and ensure that the settings to Allow it are set that way. By default they are set so that you cannot downgrade.
Once you complete that, you will need to run the BIOS flash file -- be sure your computer is not going to lose power or you interupt it -- bad things happen otherwise. Once the process is finished you will want to check your system settings to ensure the changes have been made -- also check the BIOS settings to ensure to that settings you don't want are changed to how you do want them. Things such as allowing or not allowing another flash, Virtual Machines to be run, etc.
05-27-2019 11:12 AM
Update on this, I just installed the 5QCN22WW on my machine. Thus far the performance issues are no longer occuring. Some things to note;
First, I haven't had my computer attached to my docking station but so far performance is fine
Second, I've tried running of my virtual machines -- again performance is fine.
Third, I'm running the 1903 update -- can't help but wonder if that is involved in any way?
I will try to report back once I've tried with my docking station -- for anyone wondering that is display link.
05-28-2019 07:18 AM
While I'll want more time to confirm this, so far the performance levels seem to be where they should. I haven't noticed any delays other than where I had before. Not really sure what's caused this change.
Is anyone else able/willing to try and confirm?