I have an Asus Vanta64 video card. Its AGP and has only 8 MB RAM. I downloaded Power Strip and I see that the Stock Core is 115 and the SDRAM Memory is 140. I have a chipset heatsink which came from a dead VIA mobo. It totally fits on the pin holes to mount, I used some Arctic Silver 3 and placed the heatsink on it. Now I'm trying to overclock to 130Cr/160Mem. It plays Ghost Recon pretty well for a card that old. Should I push the envelope and go even further? I think I can make 145Cr/175Mem, would I need a fan?