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lyleferguson
What's DOS?
Posts: 3
Registered: ‎02-27-2014
Location: United States
Views: 3,075
Message 1 of 6

Y510p: Games slow down when I unplug the laptop

Hello everyone.

 

I recently purchased an IdeaPad 510p (59402102) with the i7 4700MQ and GT755m (non-SLI) and aside from Windows 8 I am loving it! My game of choice lately has been Skyrim and it runs flawlessly however when I unplug the laptop my frames plummet into the single digits. Ive set my power settings to high performance, nothing. Set Skyrim to run on dedicated graphics, nothing. Set global settings to dedicated, nothing. I cannot figure out how to fix this.

 

I ran cpu-z and noticed this change in clock menory:

 

Link to image 1

 

this is while plugged in

 

Link to image 2

 

this is with the laptop unplugged

 

Does anyone know whats going on and how to fix this?

 

 

Moderator note: images totalling more than 50k converted to links per forum rules:  Lenovo Community Participation Rules

 

AGriggs
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Posts: 24
Registered: ‎01-07-2014
Location: Shanghai
Views: 3,049
Message 2 of 6

Re: Y510p: Games slow down when I unplug the laptop

Yes, it is normal.  Battery can not supply enough power, so your NVidia GPU speed is throttled.  When unplugged, you'd better switch to Intel 4600.

Guru
Posts: 792
Registered: ‎07-24-2013
Location: AU
Views: 3,046
Message 3 of 6

Re: Y510p: Games slow down when I unplug the laptop

It's working as design, so there's nothing to fix Smiley Happy

 

However, there's a way to go around it. You can force performance state using nvidiainspector. It's rather dangerous, as battery cannot supply the same amount of power as AC adapter.

====================================
I'm an INsider - not a Lenovo employee.
You can find me in gaming, Ideapad and Thinkpad forums most of the time.
lyleferguson
What's DOS?
Posts: 3
Registered: ‎02-27-2014
Location: United States
Views: 3,016
Message 4 of 6

Re: Y510p: Games slow down when I unplug the laptop

I see. Thank you both for clarifying this.

 

How dangerous exactly is this tool? I dont intend on gaming without the charger very often just on transit or in between classes. Sessions last no more than an hour without the charger.

 

Is there an approved batterry pack that would make this safer as well?

Agithan
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Posts: 23
Registered: ‎11-16-2013
Location: Canada
Views: 3,003
Message 5 of 6

Re: Y510p: Games slow down when I unplug the laptop

You can use nvidia Inspector to change these settings or you can use the Nvidia Control Panel that comes with each driver package and change the "Power Management mode" from Adaptive to Prefer Maximum Performance in Global settings (this will make all your games run at the highest performance possible). However, I agree with the AGriggs and sergioosh, as forcing this setting can potentially damage your laptop permanently. You should proceed at your own risk and all the best to you!
lyleferguson
What's DOS?
Posts: 3
Registered: ‎02-27-2014
Location: United States
Views: 2,991
Message 6 of 6

Re: Y510p: Games slow down when I unplug the laptop

Well I definitely dont want to ruin my battery so I'll have to live with this then. At least Im mobile!

 

Thanks for your help everyone!

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