The laptop started to make noise, I think that the video cards do not switch

Question

Iron

Presumably after installing windows 8 on an Acer Aspire 7750G switchable graphics laptop, it started making noise. At first I thought it was the driver, but I downloaded firewood from the off site and installed the Catalyst Control Center. Switchable graphics means switchable graphics, that is, when you surf sites, the video works on intel hd graphics, but in theory, when you enter a 3D game, it should switch to the Radeon HD7670M, which does not happen. I monitored using Everest, I launch the shooter, I go to the computer tab, and then the summary information. There is always Intel HD Graphics. I play one of the games in the social network. This is a 3D shooter that uses the Unity3d engine. In passive mode, it also buzzes, as soon as you start climbing sites more actively, it starts to make a hum, and if you go into a 2D game, the most primitive in the same social network, the hum becomes louder. What could be the problem? Why doesn't the graphics switch? Temperature on both cores at 50% load at 30% with a running shooter

Answer 1

Maybe the problem is not in switching, but simply in worsened cooling, for example, due to the buildup of dust on the radiator grilles?...

Answer 2

1. Follow this link:
acer.it168.com/thread-1900621-1-1.html
Download Mod BIOS
2. Update BIOS
3. Go to:
BIOS -> Advanced -> Video Configuration -> Pci Express Grpahic -> Always Enable PEG [Enabled]
4. Transition:
BIOS -> Advanced -> Video Configuration -> Pci Express Grpahic -> PowerXpress Setting [Muxed Fixed Scheme]
5. Reboot:
Now we can manually determine which card to use.
ps
taken from here
http://forum.notebookreview.com/acer/647283-acer-aspire-7750g-switchable-graphics-problem.html
It's strange that you didn't find it yourself. First line on google search. be ashamed)

Answer 3

I had the same thing with ASUS after working for so long without turning it off. I pumped for a couple of nights and for 3 days I gave a load. Maybe it's just the timing. My opinion - it was time to change the old one.