CRT monitor with small dots new graphics card

Hey all

Hope to get some advice here. Recently a friend swopped my Geforce 7600GT for his Geforce 7900GTX. Sounds like a good deal for me, only problems once i installed his card, i noticed small allmost dead like pixels on my crt monitor.

Its increase over the last week or so. Ive read on another forum that it might be overheating, 32bit problem or reinserting the graphics card.

Anyone here had similar problem before and what solution can there be.

I have not check if its overheating yet. Tried different drivers. Will try to clean the gold tracks on the card and reinsert card.

Using Win XP.

THx for reply man. Its my wife's pc that has the card, and i did plug in the power conection if that is what you mean by moles connection.

I think i'll take it out and plug it in again. and see if its overheating or not.

I checked if its overheating but it is idling at 51degrees, cant see what it is under load cause it restarts the pc. There is alot of tearing going on when i run 3dMark 05. The graphics are all over the place. I have a 500W power supply but its a no name brand.

51 doesn't seem to bad idle, but it is the temp when under load that we need to know. Like I said, I am pretty sure you are overheating or have a bad PSU.

Have you tried using something like RivaTuner to make your GPU fan spin at 100%?

Try opening the side panel on your PC, aim a house fan into it, and see if you still have this issue. This isn't a fix, but it may help determine if it is overheating. If it takes longer to go crazy (or doesn't at all) with the house fan there, we can assume it is overheating.

You could be right about the PSU. The problem is, it is hard to figure out, unless you can test it with a different PSU. But, I would still look into the overheating, as the symtoms you are display could also be related to that.

Could still be the PSU.

Artefacts are basically caused by the GPU running close to its limits....

This could be heat (transistors switch faster when cold, this is why liquid nitrogen cooled CPUs overclock well)

It could be power (transistors switch faster with more voltage)

If the GPU is not receiving sufficient power it will start to produce artefacts. Cooling the GPU could cause it to be able to cope with the lower voltage.

In short, I'd still replace the PSU.

You say it is a 500W model, but you don't list the specs on the side.

Alot of older PSUs have a strong 40A+ 5V rail from the days when CPUs were powered from the 5V rail, and a weak 12V rail.

These days with all the most power hungry components being fed from the 12V rail, these PSUs are insufficient even though they may have high wattage ratings....