Soundcard problems on Lenovo B450

Hello!
I just bought a Lenovo B450 in China to replace my old laptop which had broken down.
Since I don´t speak any chinese I opted to install a verision of win XP that I had lying around and was in a more suitable language. Everything works fine except for the soundcard.
I tried to install the drivers that are provided on the "service and download" page but when I do I get an error message stating "this product will not install before you connect your soundcard".
If i go and have a look in the "hardware" menu I have no soundcard, on the other hand I have a device that is not installed and is called "PCI-device". Does anyone know how to solve this?
Cheers/ Simon
Solved!
Go to Solution.

Thank you Maliha. Actually, I managed to resolve the problem yesterday and the problem/solution was that I needed to install a hotfix for windows in order for it to recognize the soundcard as a soundcard. The one I downloaded from Lenovo's site did not work since it is for SP3 and I have SP2.. p

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