Help-Tried 'em all

Damn Gigabyte! It says it supports tweaking the voltage but it doesn't even show up in the bios! There are no jumpers anywhere!

These are my questions.

1)When clocked at 133FSB, pc reboots at about 52C when using burn6. But when I clock it at 120 FSB, it doesn't reboot or even crash... even if it gets above 65C as in really... no crashes with 120FSB no matter how hot it is.

2)What are the optimal "healthy" voltages? Is it a healthy Core if it's 1.78, -12v, -5v seems to be xxxV.

Damn. Can't get to edit voltages.

Here's my mobo's description.
http://tw.giga-byte.com/products/7dxe.htm

Do you have the latest BIOS?

Yes, latest BIOS F4.

Are you sure there are no jumpers on the board for changing the Vcore? Sometimes, there is just a jumper that has to be disabled to allow Vcore changes, perhaps from within the BIOS.

No, no jumper. what else can I do?

Are there any other Ga-7DXE users out here?

Try the Gigabyte forum, under AMD motherboards.

Will do. Thanks.