TX97-e & K6-2-266/300

according to Asus you need revision 1.12 in order to support over a 233 Amd, there fore you can not use any thing over a 233 processor.  Look at the Url below for detailed specs on your motherboard.

http://www.asus.com.tw/Products/Motherboard/Pentium/Tx97-e/index.html

Hi wayneb,
   Thanks for the answer ! I must say I know what
ASUS said ! But it seems lots of people succeeded to
do that, they make the M/B support 2.2V V-Core and
5/5.5 frequency ratio . I came here and want to go
get some unofficial infomation and other guy's experiece.

   Thanks again !

The problem is that your board and mine I have the same board, lacks the jumper settings and voltage regulators and frequency settings that enable it to provide support for any processor over a 233.  You will fry the cpu and or motherboard, maybe not at first, but eventually, is it worth the cost of the motherboard and or cpu to gain a 10 or 20% increase in performance that you will not notice in the real world.  There is also a newer bios version available (Beta)0111-7.

Hi istal and wayneb,
    Several hours ago , I have tested a K6-2-266
on my TX97-E M/B , the fact is the board can
support it very well . I set up the CPU to following
frequency :266(75*3.5 2.0V), 300(75*4 2.2V) ,
333(75*4.5 2.3V) , it works very well all the time .
My present BIOS version is 0111-6 , 0108e maybe enough.
I think K6-2-300 may get a higher performance and I
could get a chance to try 5/5.5 ratio .Now I can get rid
of my old P150 finally!

    Thanks again for your help !

just one thing the 333 runs at 2.2 volt no 2.3 as you mentioned for the 266 the volt has to be 2.2 volts, no 2.0 you actually giving it less energy. good luck