Epox 9nda3+
Ive had no problems with undervolting vdimm up to 3.3vdimm(not tried higher as my EB doesnt need it)
This board DOES have problems with TCCD and Bh-5 as of release bios(havnt been overclocking ect. much so i havnt been keeping up with bios revisions)
256 meg sticks of BH-5 work flawlessly on this board but 512meg sticks it hates with a passion to where it will not run 1T at any voltage up to 3.3v at ddr400 2-2-2-5. It LOVES micron chips tho. my 3700EB 2x512 will run 272+ flawlessly with 3.28vdimm 3-2-2-8 1T.
It doesnt overclock my cpu as far as my asus did at the same voltage. the asus would send my 3500+ NC to a touch higher than 2.7ghz. unfortunatly im only able about 2.65ghz on the epox.
There's a post in the vmod section for vdimm/vcore mods but i havnt yet found the vdimm read point so im working off the sensor that i believe is accurate if not a tad low.
There's the vcore/vdimm mods anyway.
http://welloverclocked.com/Epox.jpg
http://welloverclocked.com/bh-55.jpg
There's the better of my 2 sets of bh-5(other set did 250 with the same 3.28vdimm)
here's the money shot with my EB
http://welloverclocked.com/273-32210.jpg