I'll do you even one better. First, I'll point you to one of the better sites for BIOS settings that you will find.
This site gives you all the "basic" knowledge that you will need to do a decent job of tuning your BIOS. Is it the "Final-Definative-Answer" to the A7M266?? Probably not. IN fact there may be some info that needs some updating. But I can guarantee that you will definately learn a few things from it though. However, since this is your lucky day, I am going to provide you with yet another source that is
very specifically and ONLY for the A7M266. This one will take a bit of reading on your part but it is well worth the time.
This thread has some 28 pages of the most comprehensive diagnostics and setup info that I have ever seen on a MB. Yeah, I suppose I (or someone else really) could summarize it a bit, but we've all had to do the reading and it has been well worth the task. Sit back, relax and go for it. The first part you have to remember is a bit "dated". But, it gets even better very quickly. The author is very knowledgable and if you PM or email him, I'm sure he can help you even more.
Good luck and if you have even more specific answers that I can help with, I will be sure to do so.
PS> One thing I neglected to mention is that if you check my sig, you will find I am NOT running an XP processsor; "only" a 1.33 @ 1.45. Terrible state of affairs?!?! J/K.
