Voltage of AGP cards

[MXHowes]

I'm just wondering (because my Mobo is a AGP 8x 1.5v and it states that use of 3.3v will cause permanent damage). Which cards use 3.3v? (2x?). This spec is not given on a lot of cards. My Sapphire Radeon 9550 256mb states on the box that it is compatible with AGP 4x (1.5v) or APG 8x (0.8v). I know that this card is OK for my Mobo and it looks from the above information like a 2x might be 3.3v. (Therefore can I assume a 2x/4x will be 1.5V?). I've been fried before 'assuming' something.

2x = 3.3v ?
2x/4x = 1.5v ?
4x/8x = 1.5v ?
8x = 0.8v ?

Thanks, Jim

 

[DonNagual]

An 8x device must be 0.8v,
a 4x device can be 1.5v or 0.8v,
a 2x or 1x device can be 3.3v or 1.5v.

Source: http://www.ertyu.org/~steven_nikkel/agpcompatibility.html

 

[Mirob]

4x and 4x/8x work at 1.5, 8x at .8, 2x at 3.3. If you a have a 4x/8x slot, you need a 1.5v card.