AGP Universal - Actual compatability list

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AGP Universal - Actual compatability list

Postby andreja6 » 2017-11-28 @ 06:23

Considering AGP Universal is not as universal as it should be, I want to know if there is a list of cards which are compatible with what. So far, I know two=

  • nVidia FX5500 IS Universal, can fit into x2, x4, and x8 motherboards.
  • SIS 300 is NOT universal, its ONLY x2.
  • I personally have a TNT2/Riva card which is ONLY 2x, yet has a universal connector.

Just a reminder, x2 is 3.3v, x4 is 1.5v, and x8 is 0.8v

I'm also curious about the nVidia GeForce4 MX-440 since they have a pretty low price and universal keying. I don't want to fry my AB-BH6 which went through enough suffering :/
Last edited by andreja6 on 2017-11-28 @ 08:17, edited 1 time in total.
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Re: AGP Universal - Actual compatability list

Postby Deksor » 2017-11-28 @ 07:13

The keying of AGP slot isn't related to speed, it's related to the voltage

here's how
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Re: AGP Universal - Actual compatability list

Postby andreja6 » 2017-11-28 @ 07:35

Deksor wrote:The keying of AGP slot isn't related to speed, it's related to the voltage

here's how
imageeeee


That's not the point, x2, x4, and x4 are the standards. They relate to the voltage, not only the speed. The keying actually doesn't mean anything, since many manufacturers just out right ignored standards and made x4 only cards use a universal slot, or x4 only motherboards have universal slots.
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Re: AGP Universal - Actual compatability list

Postby agent_x007 » 2017-11-28 @ 10:59

andreja6 wrote:Just a reminder, x2 is 3.3v, x4 is 1.5v, and x8 is 0.8v
"x2"/"x4"/"x8" doesn't mean anything in this case.

It's AGP 1.0, AGP 2.0, and AGP 3.0 you are after.
AGP 1.0 is 3,3V and supports 1x/2x speed (depending on chipset).
AGP 2.0 is 1,5V and supports 1x/2x/4x speeds (specs : LINK)
AGP 3.0 is 0,8V and supports 4x/8x speed.

Keep in mind, AGP version isn't the only limiting factor on GPU compatibility.
BIOS is also important, together with actual chipset that is being used.
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Re: AGP Universal - Actual compatability list

Postby firage » 2017-11-28 @ 13:43

That's interesting about the TNT2. It does exist with both 3.3V and 3.3V/1.5V connectors.

There are three kinds of "Universal" AGP connections. The first is universal between 1.0/2.0, and incompatible with (rare) AGP 3.0 only devices. Then with AGP 3.0 you got one that is 1.0/2.0/3.0 universal and another that is rarely advertised as universal as it's only 2.0/3.0 universal, and lacks 3.3V keying.
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Re: AGP Universal - Actual compatability list

Postby Stiletto » 2017-11-28 @ 18:25

Duplicate topics merged.
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Re: AGP Universal - Actual compatability list

Postby bjwil1991 » 2017-11-28 @ 18:25

I have an ASUS branded Riva TNT2 M64 that works with either AGP 4x or 2x surprisingly.
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Re: AGP Universal - Actual compatability list

Postby Imperious » 2017-11-29 @ 08:25

My Abit KT7-Raid has a universal AGP slot. So far I have tested it with cards all the way from Riva 128 and Intel I740 up to Nvidia 6800's, ATI X850XT and a HD3650. I have a HD3850 but would need a psu than can
supply a decent 5v rail as well as have PCI express connectors.
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Re: AGP Universal - Actual compatability list

Postby KCompRoom2000 » 2017-11-29 @ 21:04

I have a Dell OEM ATI Rage 128 Ultra AGP (32MB low-profile model) card that has the universal (2 notches) connector, I actually tested it on a 3.3V AGP board (an ASUS P2B-VE) and two 1.5V AGP boards (a Dell GX260, and an ASUS A8V), it works fine both ways.
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Re: AGP Universal - Actual compatability list

Postby The Serpent Rider » 2017-12-03 @ 01:47

Some early Matrox G400 cards may not work with AGP 8x motherboards.
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