Hi friends, I have just done a big mistake. I wanted to install windows vista on sunday night. But i hadnt update my bios before. Cause of that installation process stucked at vista window. So i thougt it can be useful updating bios. I have a BIOSTAR a690g-m2 (mo)ther(bo)ard. But i didnt remember its full name and looked to everest and it was written ta690g. So i downloaded ta690g bios and flashed it with TSeries BIOS update file (BIOSTAR's flash program). I am so lucky and the suitability of these two MOBO's are excellent and now im using a690g with ta690g BIOS. But i have a lot of problems. First of them is the audio. Because TA690 has HDMI but mine is not. So REaltek isnt working correctly, I'm not able to get any noise from my 5+1 creative system. I cant update IE6 to IE7, vs,vs.... A lot of problems like this. Now i want to recover my old bios. I have tried all flash programs (awdflash, winphlash, winflash, vs) I ve looked a lot of websites and couldnt find a solution. As i understood my problem is so difficult and there's a possible solution but it was risky. If i find a same mobo with mine, while two of them are running i should change the bios chips. But this is a risky operation. IF there is anyone else who knows a possible solution for this please help me!!!