W500 ati card problem

[dovazin]

Hello, i recently got one w500 with switchable graphic + win7 64x
When i set it up in bios with integrated - it works perfectly, same with switchable.
But when i try to install ati drivers it doesnt work.. system recognize it as ati card but cant make it run.
When i set in bios for discrete graphic i get black screen all the way from start button(the system run - i get the windows login sound etc. just plain black screen nothing else)

Is there any way to fix it? or its chip failure that only solution will be to replace it with another?

regards,
Dovazin

[Hans Gruber]

Did you try to download this driver? Or did you try to install an ATI driver from the AMD/ATI website?
http://support.lenovo.com/us/en/product ... s/DS018891

[dovazin]

Yes i tried the lenovo site not ati

[Cigarguy]

My T/W500 will post to BIOS when the setting is switch to discrete. Obviously from there it will allow the machine to load Windows and load the proper drivers. If it's not posting to BIOS it might will be the MB or card that's the issue.