well I have an i7 920 D0 and it is running really really hot by comparison and doesn't overclock well. I can't boot into windows with a 4ghz clock. 3.9ghz is the max clock but that was using 1.35v, I haven't given it more than 1.4v It is running right now at 180 BLCK at 1.24v Motherboard is Gigabyte x58 UD7 Memory is Mushkin 6x2GB 2000Mhz 8-9-8-24 Now I say it is hot becuase it is on full water. At the 3.6Ghz clock it is at 43C idle and loads at 50+ I know people who have i5 750s on a H50 and that idles around 35C. I constantly hear people overclock their i7s at 4ghz on air. Makes me sad. My graphics card by comparison idles at 35C and loads at 40C. It is an ATI 5970. It is in the same loop as well as the x58 chipset. Before I added my graphics card and chipset to the loop the CPU was running 40ish still. So do I have a really really hot chip or am I not overclocking right. I just upped the BCLK, vcore, and ram voltage. The loop uses a single MCP 655 and a feser 360 xchanger. The block is Swiftech XT. I changed the thermal paste several times and brands too. Shouldn't make too much difference anyway.