Gigabyte i815 MB Undervoltable with EasyTune utility?

[bLUEbYTE]

Hello,
I plan purchasing a Gigabyte GA-6OMM7 (second hand) motherboard with intel 815 chipset. I searched it's BIOS, but it doesn't support Manual VCore adjustment for underclocking.

My options are very few, It is not so easy to find those socket370 MB's easily here, and I want a MicroATX one. This MB that I mentioned has everything that I want but unfortunately it looks like it lacks BIOS support for undervolting VCore.

My question is; Is it possible to undervolt this card using Gigabyte's EasyTune utility? Has anyone tried this utility with this (or similar) card? Also, I heard that i815 chipset cards are valuable; but respect to what? performance? not getting too hot?

Please help me decide. Thanks in advance!