Re: No sound - need driver?
You can find the drivers on the official website of motherboard manufacturer. I had given you a link below. Just go the the support section and there click on Download. You can then choose the right OS from the drop down list and then install it in your pc. Download all the drivers and keep them safe in your pc. Whenever you will format you will need the drivers. Make a disc of the same and then test back.
Asus P5L-MX Drivers
Re: No sound - need driver?
Maximum system are 32bit. You can find that by right clicking on My Computer > Properties. In the first window itself you can get information on the operating and cpu. You have to find proper drivers on the basis of OS you have in your pc. You can also try some different drivers one by one and through installation via device manager can install the sound driver.