eVGA 7900 GTX...HEAT PROBLEM...PC FREEZES

Just installed a Kingwin AS3000 Water Cooler on to a eVGA 7900GTX and the cooler is working great...for the GPU/CPU....Temps Normal; however....with the stock Heatsink/Fan removed from the 7900GTX, the Video Ram is now exposed and because the massive heatsink and fan are no longer attached... no air gets blown directly on the Ram....RESULT...the 7900GTX Ram gets TOO HOT causing the system to either hang/freeze during POST or sometimes I get a message (during POST) that says "overheating or overclocking or something to do with voltage...! It then gives me the opitions of going to CMOS Setup. If I'm lucky, I can get into CMOS setup before the system hang/freezes. While in CMOS setup, I check the setting and everything looks normal...but...while in setup the video ram must be heating up because the system hangs/freezes. I have a seperate power supply running the AS 3000 and the heatsink fans for the CPU. I've reviewed various Forums and found that the 7900GTX does appear to have heat issues with the Ram...but not solution except....RMA! QUESTION: any ideas on resolving the problem...would small heatsinks on the individual Ram chips help/resolve the problem...any and all suggestions accepted! Thanks gang!

What? You crazy person, of course you're supposed to put ram sinks on the individual ram chips. Some coolers like the popular Zalman (don't know the model but its $30 from newegg) Comes WITH ram heatsinks to put on. I always thought they were a given.