The AGP slot on the Asus P4P800-VM does not support 3.3v operation (only 0.8v and 1.5v) , the NVIDIA GeForce4 MX 440-8x 64mb , even if is branded 8X it's usualy a 4X card and requiers 3.3V on the AGP slot to work especialy when it's a no name card.

Either one works well, your card looks like not designed well.

https://www.ebay.ca/sch/i.html?_from=R40&_trk … X+440&_osacat=0

https://www.ebay.ca/sch/i.html?_from=R40&_trk … X+440&_osacat=0

https://www.ebay.ca/itm/385420306166?hash=ite … ABk9SR7L18r3LYQ

Cheers,

bogdanpaulb wrote on 2023-02-16, 20:12:

the NVIDIA GeForce4 MX 440-8x 64mb , even if is branded 8X it's usualy a 4X card and requiers 3.3V on the AGP slot to work

That doesn't sound right. AGP 2.0 (4x mode) is 1.5V signalling. I used a cheapo Gf4 MX440 on my P4 setup while my normal GPU was in RMA.

@bogdanpaulb: This is sad. Why such modern mainboard does not support 4x agp cards?
@pentiumspeed: my card is made by sparkle sp7300. card is bad? It should be compatibile according to https://www.playtool.com/pages/agpcompat/agp.html

informatyk wrote on 2023-02-16, 19:58:

I've just bought NVIDIA GeForce4 MX 440-8x 64mb graphics card. The seller said it was good 10 years ago. I put it in my computer but there is no signal. I tested it in my another PC which is old HP Vectra VL400DT (Pentium 3) it has diffrent AGP port from what I noticed. It works on HP but does not on my computer. Why is that?

My PC is Pentium 4 with Asus P4P800-VM. It has AGP 3.0. The AGP is probably OK, because Matrox G450 card is working there without problems.

Any advices?

Two issues with that card might be the off-brand 20+ year old capacitors and the substandard RAM that might not work. (G)DDR of this era was hit and miss.

This is Asus P4P800-VM with Matrox G450. Why it's AGP 2.0 in CPU-Z?

It's a bad design implementation of the video card. I've had 2 different video cards (Mx440) with similar design(no name) just different pcb color (they are easy to find because they were very cheap) and both didn't work on AGP 3 motherboards. The ones that pentiumspeed recommended should work/be just fine they are on the higher end.

AGP 2 means 1.5v

informatyk wrote on 2023-02-16, 19:58:

I've just bought NVIDIA GeForce4 MX 440-8x 64mb graphics card. The seller said it was good 10 years ago. I put it in my computer but there is no signal. I tested it in my another PC which is old HP Vectra VL400DT (Pentium 3) it has diffrent AGP port from what I noticed. It works on HP but does not on my computer. Why is that?

My PC is Pentium 4 with Asus P4P800-VM. It has AGP 3.0. The AGP is probably OK, because Matrox G450 card is working there without problems.

The slot looks different on the HP motherboard because it is supposed to be a universal AGP port which can operate either at 3.3v (left key notch) or 1.5v (right key notch).

Seems that your nVidia video card has issues operating at 1.5v, the ASUS motherboard should work fine with AGP cards running at 4x.

On HP it is AGP 3.0.

I don't know what happend but GeForce is working on my Asus mobo. Probably AGP slot is worn out and didn't stick with card. Thanks for help.

informatyk wrote on 2023-02-16, 21:09:

I don't know what happend but GeForce is working on my Asus mobo. Probably AGP slot is worn out and didn't stick with card. Thanks for help.

Wonderful!😃👍

Great !

informatyk wrote on 2023-02-16, 21:09:

I don't know what happend but GeForce is working on my Asus mobo. Probably AGP slot is worn out and didn't stick with card. Thanks for help.

Glad that the problem was solved! 👍