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wildpig1234
Punch Card
Posts: 80
Registered: ‎12-15-2014
Location: US
Views: 2,645
Message 21 of 27

Re: Yoga 920/8550U Undervolt

i also got a flex 5 14 inch and a 720s-14ikb and none of them has these weird whea errors  so i think something is def off that lenovo is just basically ignoring with the 920

surahman
SCSI Port
Posts: 113
Registered: ‎05-24-2017
Location: CA
Views: 2,638
Message 22 of 27

Re: Yoga 920/8550U Undervolt

It turns out that Intel XTU is the issue. Switching over to ThrottleStop has allowed me to stable undervolt to -115mv.

wildpig1234
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Posts: 80
Registered: ‎12-15-2014
Location: US
Views: 2,631
Message 23 of 27

Re: Yoga 920/8550U Undervolt

so you are saying we should not install intel XTU but we should install throttlestop instead? i am guessing throttlestop does have voltage adjustment? also what about that sleep issue we were talking about earlier?
Churnmaster
Paper Tape
Posts: 12
Registered: ‎01-21-2018
Location: US
Views: 2,626
Message 24 of 27

Re: Yoga 920/8550U Undervolt

I am stable undervolting-.125 with xtu and the mei

Churnmaster
Paper Tape
Posts: 12
Registered: ‎01-21-2018
Location: US
Views: 2,625
Message 25 of 27

Re: Yoga 920/8550U Undervolt

i deleted from bios and reinstalled it....it runs faster with the mei update and undervolted -.125  on cinebench 

surahman
SCSI Port
Posts: 113
Registered: ‎05-24-2017
Location: CA
Views: 2,601
Message 26 of 27

Re: Yoga 920/8550U Undervolt

I recommend ThrottleStop, it has much finer control over things.

I'm not sure why Intel XTU was causing reboots but whenever I would undervolt with it the system would reboot as soon as it went to sleep.
thinkpadreally
Punch Card
Posts: 45
Registered: ‎03-21-2018
Location: US
Views: 2,271
Message 27 of 27

Re: Yoga 920/8550U Undervolt

I'm using XTU, but have to undervoluting every time after restarting the laptop. I wonder if there is a way to permanently undervolute the cup. Thanks in advance.

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