My graphics card's temp rises up by 40C with power supply plugged in?

Hey guys,

When I'm only surfing through the web with just the battery plugged in, my graphic card's temperature is 40C - 41C. However, if I plug in the power supply it raises as high as 80C - 81C. Why does that happen? What can I do to fix that?

Thank you.

 

What computer is it?

 

are you using 7 or vista?

 

Check the clockspeeds with a tool like GPU-Z when you have it on battery and when you have it on AC. They might be largely different, which could be causing the heat difference.

It may be that your laptop needs a good fan and heatsink assembly clean as well.

 

im not going to stay here for long so ill give you my 2 cents on this one.

if the computer is fine on the batery then dirty heatsink is out of the equation for now.

on the botton right corner theres the batery indicator left click it and press more power options.

now click on "change plan settings" on the right of the selected radio botton

Click change advanced power settings.

scroll down until you see processor power management

click on the +

now on maximum processor state click on the +

you should have two options

1-on batery
2-plugged in

leave put them the same and you should now have the same temp

(just dont forget that you cpu wont go full load)

in my case i have
on batery 75%
plugged in 75%

on the power saving plan

on the performance(windows vista) or balanced (windows 7) i have
on batery 100%
plugged in 100%

thats why i asked your OS in my first post.

hope it helped

 

Hi Forge, it's an MSI.

Hi Mordock, I am using vista.

Hi CZX58 Shadow, I download GPU - Z. The GPU Clock is 297 MHz and Memory is 252 MHz with just the battery plugged in. And the GPU Clock is 499 MHz and Memory is 594 MHz with just the AC plugged in. As you predicted, they are largely different. How can I change it?

 

try doing what i said above when you have time, if you didnt messed around with OC utility's im sure your problem is there

 

Thanks mordock, I did what you told me. For my maximum processor state, I have
on battery 50%
plugged in 50%

 

ok nice, did it work?

 

No. :-[ It was originally like that.

 

are you sure that the plan you modified is the plan that you have selected?

 

So it's running at it's full or near full clocks when on AC, I presume.

What drivers are you running? And what model of card is it?

As for the processor state thing, that's to do with the CPU only, AFAIK. If you have an ATI card, you want the Avivo Powerplay option instead. I'm sure there is something similar if you have an NVIDIA card.

 

the same thing happens on my laptop, and i fixed it that way...

 

The graphics card is ATI Radeon HD 2600. So how do I change it so both the battery and AC clocks will be the same?

 

Yes, I am sure.

 

I wish i could be more helpful, but im out of ideas, good luck with your problem.

cheers

 

Thank you so much for trying to help.

 

OP, if your GPU is the following:

http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-2600-XT.3770.0.html

then your GPU is not running at 100% with the AC plugged in and 80C is a tad high for less than 100% load. I would clean your vents http://www.notebookreview.com/default.asp?newsID=4020 and see if that helps at all (it definitely wouldn't hurt). Also, make sure your drivers are up to date. If none of that helps, trying stressing your GPU and recording the temperatures for about 20 minutes, see how high they go.

 

That's like saying "I have a Mercedes."

What model? What components? Any modifications?

 

Ah, yes, you are the guy who posted a different topic recently on a similar issue, da?

In the same menu as the the maximum processor state thing, there should be something like Avivo Powerplay options, or something to do with the GPU. With that expanded, there is two entries, one being something like "On Battery: Maximum Battery Life" and the other being "Plugged In: Maximum Performance". Change the Plugged in entry to maximum battery life, if possible.

If that doesn't work, you could try undervolting.

 

Thanks a lot. That helped. :-]