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Old 04-24-2004, 12:06 PM   #1 (permalink)
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Default agp and agp pro: does this sound right to you?

do i have this right?

an agp pro slot on a botherboard will accept and use a standard 4x/8x agp video card, BUT because of size and power limitations, an agp pro card won't fit a standard agp slot?

does that sound right?
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Old 04-24-2004, 06:54 PM   #2 (permalink)
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thats why agp pro wont accept 3.3v cards?
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Old 04-24-2004, 07:00 PM   #3 (permalink)
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I have a question about this as well. I just recently built an amd64 system with the asus k8v board with a 9800 pro. Is my 9800 pro not being used to its full potential when hooked up to the agp slot? I am alittle confused by what an agp pro slot is exactly..?
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Old 04-24-2004, 07:26 PM   #4 (permalink)
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Quote:
Originally posted by becroydon
thats why agp pro wont accept 3.3v cards?
A universal AGP/AGP Pro slot will accept 3.3V in addition to 1.5V (as well as 0.8 IF the slot complies with AGP 3.0 standards).

An AGP Pro slot which is purely based on the AGP 3.0 standard will only accept 0.8/1.5V cards. Such a warning will usually be listed first in the motherboard's specifications.

Quote:
I have a question about this as well. I just recently built an amd64 system with the asus k8v board with a 9800 pro. Is my 9800 pro not being used to its full potential when hooked up to the agp slot? I am alittle confused by what an agp pro slot is exactly..?
An ASUS K8V, as far as I'm concerned, does not contain an AGP Pro slot; instead it is a standard AGP 3.0 slot (AGP 8x). The 9800 Pro supports AGP 8x and therefore can be used in AGP 8x mode. Whether that defines the full potential of the card is only ambivalent.

As for AGP Pro slots, here's the full explanation from Anandtech:

Quote:
AGP Pro is an extension of the AGP4X specification that is primarily designed to deliver additional electrical power to the graphics add-in cards. The AGP Pro definition includes an extended connector, thermal envelope, and mechanical specifications for cards, I/O brackets, and motherboard layout requirements. It is designed for professional level video cards, such as the Intergraph/3Dlabs Wildcat 4220.

AGP Pro extends the existing AGP connectors on both ends to deliver additional power on the 12 V and 3.3 V rails. AGP Pro is intended to supplement, but not replace, the existing AGP connector set. There are an additional 20 pins at the start and 28 pins at the end of the normal AGP slot.

An AGP Pro slot will accept and operate with standard AGP cards (although certain restrictions apply in the case of i845 and i850 motherboards). AGP Pro cards however, are not compatible with standard AGP4X slots.

The common AGP slot can supply up to 25 watts of power to a video card. AGP Pro introduces two additional AGP card types that can consume more than 25 watts.

Low Power AGP Pro cards that consume 25 to 50 Watts of power are classified as AGP Pro50 cards. In addition, the AGP Pro standard calls for at least one PCI slot to remain unoccupied adjacent to the AGP Pro50 card for cooling purposes.

A High Power AGP Pro card consumes 50 to 110 Watts of power, and is called an AGP Pro110 card. The standard requires at least 2 PCI slots to remain unoccupied adjacent to the AGP Pro110 card for cooling purposes.

There is no performance difference between AGP4X and AGP Pro.

There are currently no consumer level AGP Pro video cards.
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Old 04-26-2004, 06:13 PM   #5 (permalink)
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well mine specified only 0.8v and 1.5v so does this qualify mine as agp pro
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