V-VPU stock is at 1.5, and the ram i believe is at 2.6, i'm not 100% sure. With a CPU cooler, I suppose you could use 1.7V-VPU. Use large aluminum ramsinks, or copper ramsinks, then keep the Vram at let's say 2.9, try not to go to 3.0, then your VPU may get too hot.
I doubt if your card's going to break within 5 years.
-Intel PIV 2.6C @ 3.276G -Asus P4P800 -OCZ Copper 2x256 4000EL memory @ 252mhz 2.5-3-4-6 -XFX 5900 128meg 450/900 -SB audigy -120G Maxtor Diamond Plus9 S-ATA150 hdd -450 Enermax PSU