Hi everyone this my first post here. Well here's my problem my ThinkPad a31 (model type 2653-bu2) just has no sound or modem now I know it's not a software problem as the IBM pc doctor utility does not even recognize the hardware. Now this problem occurred suddenly about 2 days ago just randomly without any notice and no major events that would provoke such an problem. I was thinking that there is a problem with the ac'97 codec chip which would explain the modem and sound both disappearing. But the system can still beep and boop when I want it to i.e. boot up or mashing the keyboard. Also when speakers are connected into the line out jack the beeps and boops can be heard through those speakers. I also tried the machine without the modem daughter card just to see if anything would change to no avail. And as a last step I did a teardown to see if there was any debris or bad areas on the Motherboard and there was not a single oddity. So anyone have any ideas?