AGP Voltage

[mephizto]

Hello,

I have just started to pick out hardware for my new computer.
But I've encounted a problem that I don't know so much about.

The AGP port on the mother board is an AGP 8X wich only supports 1.5 volt Graphic cards.
Now I don know which card i should choose to make it work.
I read some threads on this forum about it and tried to
find card with the same keys as those i read about.

I found a card that I tought would work but after downloading
the manual for the card I found this warning

Caution: AGP bus VDDQ Voltage and AGP bus 3.3 VOLTAGE should be supplied streadily by your motherboard. Otherwise, your system will crash.

Does this mean that it will not work with a 1.5 port?

Do you know any good cards that would work for me and are not
to expensive (100 - 200$).

It is a "ASUS P4P800-Delux motherboard"

Please help

[Prexaspes]

What video card are you looking at??

The motherboard you are looking at supports AGP 8x and 4x. (.8v and 1.5v, respectively)

It doesn't appear to support AGP 2x, which is 3.3v.

[Peter M]

8x/4x mainboards typically do not support 3.3V signalling as needed for 1x/2x cards (and PCI chips on AGP cards like the Voodoo series are).

If the board and card designers did their job right, it won't even fit mechanically. 3.3V and 1.5V/0.8V signalling is key coded into the card and slot; if the card doesn't have a notch where the mainboard has a key tab, it won't fit.

[mephizto]

The card that I was looking at was a "Asus V9280TD GeForce 4 Ti4200 128 Mb DDR VGA/DVI 8x AGP".

I has also been looking at
"Gainward FX Powerpack! Pro/660TV/DVI Gforce FX 5200 128MB AGP8X"

are both these cards 1.5 volt? if they are, does anybody knows
wich one is the better one.

I have heard about 3.3 cards that fits even on these new 1.5 volt
AGP's and that it has caused damage both on the AGP port
and the graphic card.

Well, everything is so complicated these days...

[Prexaspes]

The GeForce 4 Ti 4200 will outperform the FX 5200, no question. The FX 5200 best suited for lower end graphics performance in games, much like the GeForce 4 MX line of old.

Either card will work with your motherboard. Both cards are 8x, which means they are .8v.

[Peter M]

Yes, there are a handful of screwed up 1x/2x cards that are keyed "universal". And there are 4x/8x mainboards that have a "universal" keyed slot. Disaster waiting to happen.

[mephizto]

Okey,

THANKS for the information, I'll go for the "GeForce 4 Ti 4200" then.

[mephizto]

Just found another intresting thing in the manual for the "Asus V9280TD GeForce 4 Ti4200" card,

"Make sure that the power supply of your motherboard can provide
enough electrical current on the 3.3V lead to maintain normal operation"

What the hell is that all about?

[Peter M]

This is the SUPPLY voltage. Nothing to do with the SIGNALLING voltage.

[mephizto]

Okey, you have no idea how confused I am