AGP voltage

[Bagpuss]

Using a Epox 4SDA+ and notice the AGP voltage is 1.5volts
My Geforce DDR card uses 3.3 volts (so i am told) and yet it works in the 4SDA.
Should i increase the voltage in the BIOS (max is 2.2) or use a different card to prevent damage?

[Harryc]

All 4X AGP cards use 1.5v, contrary to what you've been 'told'.

[Bagpuss]

Not disputing your info Harryc but Creative Labs technical say it's a 3.3v device which is what got me worried.

[Genius]

Are you having any problems with the card? Does it appear to be running as fast as it should? I don't think you really have anything to worry about. I don't believe a lower than rated voltage could ever hurt a device. 3.3v sounds a bit excessive anyways.

[Áedán]

It may well be a 3.3v device, sitting in a 1.5v socket. No problem with that! That just means that the card needs power supplied at 3.3V, but the signals are at 1.5V.

You'll notice there's a voltage regulator on board the card, which brings the 3.3v down to the 1.5 (or 2v) that the chips require. Then, all the signalling across the bus is at 1.5V

If you put the card in a 1.5v only socket, it wouldn't work, as there wouldn't be enough voltage for the regulator to operate, and the chips on the card wouldn't get the power they need.

AidanII