Has the motherboard used the AGP port in a while? The card may be sensitive to a slightly dusty/oxidised pins.

Do you know the card works?

jord44 wrote on 2025-08-08, 21:11:

Hi all, […]
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Hi all,

Long time lurker, first time poster.

I was wondering if anyone might have some experience with this issue. I have an ASRock Pi465g, which has worked (almost) flawlessly until now.

I recently acquired an AGP GeForce FX 5500 to use for some Win 9x/XP games. The machine works as expected without the card, but once I try to boot with the card plugged in, there's no life at all. The fans run at full speed, and the machine won't post. No post beep/beep codes and no display.

Once I unplug the card, it works as expected again.

Has anyone had any experience with this, or is my card busted?

Thanks in advance :- )

Greetings 😀
first thing i'd check is the video options in the bios, there should be an option to select the preferred display adapter to switch between Onboard/ PCI/ AGP , if you've already done that i'd try the card in another motherboard just to be sure it works ok.

DudeFace wrote on 2025-08-09, 07:40:

Greetings 😀
first thing i'd check is the video options in the bios, there should be an option to select the preferred display adapter to switch between Onboard/ PCI/ AGP , if you've already done that i'd try the card in another motherboard just to be sure it works ok.

Hi!

This was the first thing I tried, but unfortunately no luck 🙁 - I've only got one other mobo with an AGP slot, and unfortunately it doesn't seem to support my Prescott CPU that I've got in this board, which is a slight bummer.

MikeSG wrote on 2025-08-09, 06:57:

Has the motherboard used the AGP port in a while? The card may be sensitive to a slightly dusty/oxidised pins.

Do you know the card works?

In fairness, I've never used the AGP slot on this board until now. I'll try and give the slot a clean.

As far as I'm aware, the card should be working, but I don't have another board to test it with at the moment. I bought it under the impression it works, so I'm assuming this is a mobo error at the moment

Thanks to you both 😀

The symptoms you describe are usually associated with a non functional graphics card, or one that hasn't been inserted all the way through. Have you tried really pushing it down there? AGP is more picky with correct insertion thanks to its staggered pins, and sometimes just a fraction of a millimeter off is enough to cause problems.

devius wrote on 2025-08-09, 09:41:

The symptoms you describe are usually associated with a non functional graphics card, or one that hasn't been inserted all the way through. Have you tried really pushing it down there? AGP is more picky with correct insertion thanks to its staggered pins, and sometimes just a fraction of a millimeter off is enough to cause problems.

I just tried again to give it a good push into the slot, and still nothing 🙁

I think you may be right, the chances are that this card is dead.

Looks like I will have to deal with integrated graphics for a little while longer, haha!

Chances are it's the card, but you won't know for sure until you've tried either this card in another (known good) motherboard or a (known good) AGP card in this one.

In any event the BIOS setting for Init Display First isn't relevant here. As the name suggests it just determines which display will be initiate first if multiple are present. If there's only a single VGA, it has no effect. Note that the integrated VGA lives on the AGP port too and is disabled automatically as soon as a card is inserted, so you only have one AGP device regardless.