The A7V is one of the first generation socket A motherboards which utilize the original KT133 chipset. These motherboards with this chipset generally will not run a FSB much beyond the 107/110MHz range. This was addressed with the introduction of the improved KT133A chipset which have been reported to run at 150MHz and beyond.
The 1.33MHz CPU runs on a 133MHz FSB by default (10*133), which your motherboard will not support.
You could try to alter the bridges by cutting/joining the appropriate bridges to achieve whichever setting you would like.
Check out this link for an interactive guide to which bridges need to be joined or cut;
http://www.ocinside.de/index_e.html?/html/workshop/socketa/socketa_resistors.html
If you were to alter the bridges on the CPU to run on that motherboard, you would lose the advantage of the increased FSB.
You could try to get a hold of a 100MHz FSB CPU "B" code, but you would still sacrifice performance with the lower FSB.
A new motherboard may be in order.
I hope this helps.
Good Luck!
Refer to the image below to learn how to decipher the core codes including the default FSB;
