2 Nvidia 6800XTs and 1 BFG PhySx Card onboard an ASUS M2N32SLI Mobo.... Athlon X2 64 4400 running at 2.5GHz, 4GB PC6400DDR2 and infinite Sata Space..... ok Running Vista 64bit for the past 3 years now... no hiccups..... until now...... In SLI ON config..... one card heats up to an extreme shutting down the system during gaming...... finally removed the second card from the mobo all together..... Simple question.... How is this going to effect the gaming performance.... since the single card suffices most gaming requirements all though newer ones on low resolutions..... secondly.... I was hoping to know suppose I was to put the second gpu back in..... but remove the SLI cable and have it running..... is it going to be like an added piece of hardware of no use or is it going to do some work sitting in it's place ?