I thought this would have already been asnwered but couldn't find it by searching.

Here's the info on my AGP slot that I'm wanting to buy a video card for:

AGP-4x 32-bit +3.3V PME Full-Length

I'm not sure what the PME Full-Length means, but my understanding is that a 4x/8x card will fit that kind of slot (3.3v 4x), but not a 4x/8x Pro. Is that correct?

Other than power supply and cooling, is there anything else I need to worry about compatibility-wise when buying an AGP card?

Thank you for your help.

I should have also asked if an 8x card would work. My hunch is no, but I'm no expert. Is there backwards compatibility like that?

Here's some info that may help;

http://www.playtool.com/pages/agpcompat/agp.html

Thank you very much for link.

After reading through the AGP compatibility for sticklers section, I'm somewhat confused.

The slot information I'm given is "AGP-4x 32-bit +3.3V PME Full-Length". But according to the page you linked, 3.3V slots are AGP 1.0 with only 1x and 2x speeds. This says it's 4x with 3.3v. I'm looking toward the top of the page at "AGP Basics."

Also, I have this information about the bus.

AGP Bus(es) on Hub 1
Version : 2.00
Speed : 4x
Multiplier : 1/2x
Fast-Writes Enabled : Yes
Side Band Enabled : No
Side Band Support : Yes
Aperture Size : 128MB

That says it's AGP 2.0 with a speed of 4x which makes sense, but I'm having trouble understanding why the slot is a 3.3V if 3.3V slots are AGP 1.0 with 1x/2x speeds.

I'm not sure if it matters, because the card I was looking at is a GeForce FX5500 which is a Universal AGP 3.0 Card, and has the appropriate key slots on it for both 1.5 and 3.3V. So I'm thinking that I'm good to go on getting that card. I'm just confused about the 3.3V and 4x speed combination in my slot information.

Here's more info on AGP cards;

http://www.tomshardware.com/2006/07/...ics_beginners/

Basically, AGP 8X are backwards compatable. The thing you have to be careful about is the voltage. Some AGP slots are universal. If you install a card designed for lower voltage in a higher voltage slot, damage can result.

What is the make and model of the motherboard with this AGP slot?

Well, I don't have the motherboard model number with me.

The PC in question is a Dell Dimension 8200.

I'm having someone find the Asset Tag for me, as I'm away from it at the moment (work).

The chipset is 82850/E, if that is useful.

Chipset 1
Model : Dell Computer Corp 82850/E Host-Hub Interface Bridge Device (A3-step)
Bus(es) : X-Bus AGP PCI IMB USB FireWire/1394 i2c/SMBus
Front Side Bus Speed : 4x 133MHz (532MHz data rate)
Maximum FSB Speed / Max Memory Speed : 4x 133MHz / 2x 532MHz
Width : 64-bit
IO Queue Depth : 8 request(s)

I'll put up the model number as soon as I get it.

MB part # is: 1T751

Description: ASSEMBLY..., CARD (CIRCUIT)..., PLANAR (MOTHERBOARD)..., 850E, TRANSFORMER SKY DIVE MINITOWER..., DIMENSION...

Sorry I missed part of the original question;
"...my understanding is that a 4x/8x card will fit that kind of slot (3.3v 4x), but not a 4x/8x Pro. Is that correct?"

That is correct. A Pro is a longer card/slot.

You should be fine with that card;

http://www.guru3d.com/article/content/124/1

Thank you very much for helping me with my issue.

Actually, the slot wasn't 4x 3.3v. That was derived incorrectly. It's just a 1.5v slot.

Thanks again.