L1t3

I do not have any back ups to use while I wait for replacements and I need a computer to use for raiding. I will probably RMA them just not now.

After testing both sticks separately I have found that one appears to run stable at its rated DDR550 2.5-3-3-7 timings while unfortunately the other one doesn't. So it looks like I got a defective stick. Extremely disappointing for a $250(at the time) purchase makes me wish I went OCZ instead. At LEAST I have had absolutely no problems running at DDR400 since I installed them. RMA'ing them is not an option for me so I'm probably just going to replace them. Any suggestions for reliable replacements from newegg? I've been looking at these but they're a little pricey. http://www.newegg.com/Product/Product.aspx...N82E16820227210

I just ran memtest using your method without any errors. So I guess the problem is with the motherboard? What do you mean?

I built my computer(specs in sig) last year and didn't look into overclocking it until now so I'm relatively new to this. Please forgive me if I sound too nub. I've been reading up on all the guides I could find and was able to determine the limit of my cpu, which is [email protected], but I've run into problems overclocking the memory. Although it passes memtests, it just refuses to run stable in windows at any settings above stock specs DDR400 2-2-2-5. The package says it should be able run at 2.5-3-3-7 for DDR550 but when I set it to that while underclocking everything else windows wouldn't even last pass the login screen. I've tried loosening the timings, turning up the vdimm to 2.9(even though it shouldn't be needed according to threads I've read), and trying other various configs such as the ones listed in this thread, which uses the exact same memory I have. Nothing I do seems to be making it any more stable. I've read that the problem could be either a poor memory controller or faulty RAM. I would rather hope I was doing something wrong? Is there something I'm not doing or going about the wrong way? Thanks in advance for the replies.

I just bought my system and have stumbled over the same chipset temperature problem as well. I had my 7800GTX installed in the PCI-E 1 slot, which pretty much covered the chipset fan. First I took the fan off and completely removed the padding and yellow thermal crap on the heat sink. DON'T REMOVE THE SQUARE PADDING. I found this out after I did it but it still appears to be okay. Apparently it's needed to prevent the chipset from cracking when you put it back on. I put a small dab of AS5 on it, though some people prefer using AS Ceramique, and took off the chrome plating from the heatsink. After that I booted up and probably got almost 2C difference in idling but still high temps up to 52C while gaming. Did a little more research and found moving the 7800GTX down a slot and switching the jumpers to sli mode would help with cooling without any performance loss. I also found some people mounting fans over it. So I bought a Thermaltake 120mm fan and positioned it over the chipset. I got some good results. My chipset temperatures never went pass 48C after a full night of gaming on WoW, and my 3200+ idles at now idles at 32C and never goes pass 38C. It also helped cool the PWM. Another alternative is to buy the Antec Iceberq 4 but you'll need to dremel to get it to fit.