4X AGP video card with 4x/8x?

[Rob Dizzle]

Hello!

Just a question! my AGP port is a maximum capacity or 4X good performance in the manual says the motherboard supports 4X AGP 2x. What if I connect a video card that is 4X AGP 8x (so it says on the specifications of the video card).
Is it possible ?

Thank you!!

[Birdie]

It may work if it is compatible with the signaling voltage on the motherboard (1.5v for AGP 1x, 2x and 4x), but it will only work at up to the 4x that your motherboard is capable of. You may need to change your BIOS settings for AGP= 4x to obtain maximum performance from your motherboard and graphics card. AGP 8x cards run at 0.8v but some may permit 1.5v 4x compatibility.

Many people experiencing problems with 8x cards in 4x slots, might consider the possibility of power supply issues. It's not unusual to see newer cards requiring 300-350 watt power supplies with specific voltages requiring up to 18 amps.

[Archibald]

Some 8x cards are designed to be able to clock down to 4x, some are not. Many times it will say whether or not this is possible right on the box. In all respects the motherboard or 8x card should not be damaged by attempting this, the worst that will happen is it wont work.

[David23]

Yeah, I don't think you can use the 8x AGP part of the card I do know 8x AGP is the best right now, but if the video card can run at the 4x AGP then you should be fine.