Changing a 462- pin Athlon`s voltage?

[Fred Jodry]

Every "A" Athlon and the Duron I have are demonstrating that they don`t need the 1.76 volts area on their cores. They all underclock, clock, or overclock their cores with Duron or Athlon XP voltage of 1.55 volts or less. Since most of my motherboards don`t adjust core voltage without me reaching for my resistors box and soldering iron, is there a way to wire a pin to another or insulate a pin from conducting in order to reset the core voltage? Likewise, how about the same question for Pentium 3, 4, and so on.

[Wizzard1]

You can actually use the bridges at the top to modify the voltages-

http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html

That site is EXACTLY what you're looking for.

[Fred Jodry]

[Wizzard1]

Most Barton cores can run well undervolted, my best method is to lower voltage and frequency all the way, and then set the voltage to where I want it, and then raise the multiplier at the highest FSB the board can handle, untill you maximize the overall frequency. Each .5x step should take a day of testing, but in the end, you have maximized the life of your processor with some severe undervolting

I keep my Bartons at 1.1v, 1666Mhz for silent, stable 24/7 operation. Too bad my board only supports 333Mhz FSB :C

[Neon_WA]

[Wizzard1]

Just trying to push the envelope

[Fred Jodry]

When you run out of adjustments to raise the FSB, try
soldering in a crystal into the main clock that`s a wee
higher than the original 14.318 MHz frequency. Mouser
Electronics and Newark Electronics are a pair of places
where you can probably get little handfulls of 15.0, 15.5,
16.0 and 16.9 MHz crystals of the right size and impeda
nce. The 16.9 will almost always fail but the closer types
may go in and dent the roof higher without losing the
keyboard, mouse, and floppy, etc. Signs of lost breeze
ways when the clock phases get crunched. If you have
an ultra- cheapo computer where the main clock`s 14.3
drives the sound ADAC, you`ll get wrong- pitch sound.

[Wizzard1]

Oh, I've done my share of jumper additions and extra caps/resistors (Owned a fully modded P2B-D with 150Mhz FSB) but never a crystal! I didn't know that could be done... I cant imagine going to that length when a fully-adjustable PLL could be installed instead

[Fred Jodry]

Nonetheless, a palm full of baby rocks comes in handy.