Radeon Mobility HD 4570 Not working after win 7 upgrade

hi,,, right ,, this worked on 2 acer 7535g lappys with the 4750 ati cards in,,,
1/ update the bios on the acer support site to the latest windows 7 bios v2.04,,, its in a previous post in this thread,,,
2/ download and install driver sweeper,,, ccleaner,,, revo uninstaller
3/ uninstall all ATI and CCC software using either windows removal app or revo uninstaller,,,
4/ use advanced search to gat all bits left over,,, press windows key + F ,, and type in ATI and CCC into search box in advanced search and delete all it finds,,,
5/ go into device manager and remove drivers for both the hd3200 and hd 4750
6/ run driver sweeper for ATI drivers and delete,,,
7/ run ccleaner to sort out the registry,,,,
8/ have your acer drivers update disc in the drive (the green one) start the disc and install the Video_AMD_PUMA_Win7_X86X64_8.634 drivers and reboot the pc when its installed,,,
hopefully this would have worked and you have the drivers installed and the switch-able graphics work fine
good luck.

Hi,
I tried to install bios 2,04 and driver from ACER for 7535g laptop. ALthough now I CAN switch normally like Vista before, there is a problem that windows still play on HD3200 (though system recognizes HD4570).
You just try installing some game like street fighter 4, the game recognize HD 3200 though it is in High-performance GPU. The frame rate is low.
When I first buy this computer. It is running on Vista, recognize HD4570 and play Street Fighter 4 very well.
Do you have any idea?

I just wanted to quickly post and say that I finally got everything working correctly...just a year on!

Thank you to everyone for the advice posted and especially to the kind soul who gave me their spare windows 7 disc

BTW,
AMD now support mobile graphic cards out of the box in their Catalyst drivers (no mobility mod needed any longer). It works just fine, I already tried it two or three times without any problem (download, double-click, install--finally, the way it should be! ).

Still not convinced; have tried all these 'remedies'. No errors, system says it is switching cards - balnk screen etc then comes back on - as dull as ever. in Vista the 4570 was much brighter
???

After trying everyting that was posted here, I simply downloaded the Mobility tool. Solved all my problems to my surprise. Just download, install, and let it get the right driver for you. I don't know if it installs the latest driver. But at least my HD 3650 is active again on my Aspire 8530G. Also the HD3200 is active in the device manager.

Google for: catalyst_mobility_64-bit_util.exe

Hope it helps!

mrpipe said:

hi

a few teething problems with windows 7... I recently purchased an acer aspire 7535g with vista - it has two graphics cores - an onboard 3200hd for low power stuff and a more powerful hd 4570. These are controlled by catalyst control centre (ccc) and worked fine...

...until i upgraded to windows 7

- now power express does not seem to recognise either cards although the 3200 appears to be working. When i check the hardware section of the computer, both cards are recognised, but a fault is diagnosed with the 4500 series card - it says the card cannot start - code 10 error

the cards are supposed to switch automatically when the computer is plugged into / out of mains power.

I have downloaded the most recent versions of ccc and the most recent ati drivers but this has not rectified the problem.

I need the 4570 card. Has anyone experienced similar / suggest a solution??

you have to go to the device manager , right click on the video card with the exclamation mark (hd 4500) , click on the uninstal button , the check the little box that says delete device drivers (or something like that) , then click ok , then the device will uninstall , windows will download the right driver (witch i dont't know why it wouldn'd update the first time) , and everything goes smooth

Having the same problem. Only problem is have not got recovery software and have now installed Windows 7 Ultimate. Catalyst drivers will not recognise on system, cannot download direct from either Acer or ATI, and HD 4570 still not working. Been at this for 4 days now and about to throw the damn thing down the stairs!!!!