via is well aware of the fact that todays AMD mobo can't supply enough voltage to the Geforce 3- 4 to make
the six strobe voltages (3 - 2X and 3 complimentary) and the card's input wattage to initialize these cards in
3D accelleration reliably. There's only two ways to make these cards work - bypass the mobo power
distribution with an additional +12V PSU 4 pin connector on mobo, or connect a separate line rail (like from
Antec truepower) directly into vidcard, like the new TX25 Canopus Ti4600.
Since the card requires +1.5V, and since the cards components have not changed for current vidcards, I
don't know if they are using the +12V PSU connector to alleviate other things, like HDD's or CDRoms, but
then why would they put it so close to AGP slot? Its a lot harder to kick down 12V to 1.5 than 3.3V to 1.5
Also, all the +12V lines come from the same taps on PSU PCB, so I don't understand how this helps either.
But clearly, Nvidia and VIA are doing things behind the scenes to try and fix the endless misery that people
have trying to get their Geforce running properly at rated 4X.
Most people downgrade their system and live with it.