I have just had to replace the motherboard on a 3 year old low spec system. All it is being used for is surfing the net so price was the most important factor. I bought an ASRock K7S8XE with a Duron 1.6 and had to replace the old SDRAM with DDR also. The rest of the system was being retained including the graphics card - a Riva TNT2 32MB. I noticed in the handbook it says "do not insert a 3.3 Volt AGP card or it may cause permanent damage" It states that the AGP slot supports 1.5V 8x/4x cards. I do not know what the voltage is on the TNT2 but it seems to run ok. What are the consequences of fitting the wrong voltage card,would it run initially then cause problems later or would it not run at all???