Can i put an 8x AGP card in a 4x AGP slot?

a great lack of real information ...

Graham_Comtek said:
Anyone have any knowledge on this one?

Thanks
What is the motherboard???

AGP 2.0 is a 1.5V AGP slot capable of 4x,2x and 1x speeds. AGP 3.0 (8x) is keyed like a 1.5V AGP 2.0 slot, but it only uses 0.8V of power. It supports 8X, 4X, 2X and 1X speeds.

AGP Speeds are required to be backwards compatible. This means that an 8X video card MUST be able to run at 4x, 2x, or 1x speeds. However, this does NOT necessarily mean that your 8X card will run on a 4x slot.

Because speeds must be backwards compatible, Signalling Voltage is where incompatibilities arise.

The bottom line is ... your 8X video card can theoretically be safely TESTED in any 1.5V motherboard for compatibility. But if you know for a fact that your board only runs 1.5V AGP 2.0 spec and the 8X AGP 3.0 card runs only 0.8v spec, then the two should NOT be compatible with one another. At the very least it will be unstable, if, it runs at all. ;)


:user:
 
muckshifter said:
What is the motherboard???

AGP 2.0 is a 1.5V AGP slot capable of 4x,2x and 1x speeds. AGP 3.0 (8x) is keyed like a 1.5V AGP 2.0 slot, but it only uses 0.8V of power. It supports 8X, 4X, 2X and 1X speeds.

AGP Speeds are required to be backwards compatible. This means that an 8X video card MUST be able to run at 4x, 2x, or 1x speeds. However, this does NOT necessarily mean that your 8X card will run on a 4x slot.

Because speeds must be backwards compatible, Signalling Voltage is where incompatibilities arise.

The bottom line is ... your 8X video card can theoretically be safely TESTED in any 1.5V motherboard for compatibility. But if you know for a fact that your board only runs 1.5V AGP 2.0 spec and the 8X AGP 3.0 card runs only 0.8v spec, then the two should NOT be compatible with one another. At the very least it will be unstable, if, it runs at all. ;)


user.gif
MS-6566E, that's one of the boards i am wanting to try it with...
 
Nope, I would not buy a 8x video card ...


AGP 4x slot (1.5v only)
Stick with a decent 4x card ... there really isn't a great deal of an enhancement to 8x anyway. ;)


:user:
 
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