Core i7 920 rev D0 stepping 5 :)

[roller11]

It seems I really need better cooling than NH-U12P, but air cooling is my only option here. Anybody has suggestion on a better air cooling solution?

Those temps sound higher than normal. Does EIST work on your board? If so, enabling EIST will bring those temps way down.

By far the best air cooler is the ifx-14 by thermalright. review sites put it ahead of True, the latest scythe, 120 extreme.....it's the best there is today, period. The best part is that it can hold two fans because it is split, so one fan can go in the center with another on the outside in the conventional location. But even with just one fan it beats all other coolers by a wide margin, so on a "same fan, same fan speed" compare, it beats all comers. See the review on mad shrimps and other sites. It;s designed for either 120mm or 140mm fans. Only possible problem is because it's extra wide, it will hang over the side of the mobo on the EVGA and DFI mobos because they put the CPU socket near the board edge. On all other boards it will be fully over the board.

[raptord]

Those temps sound higher than normal. Does EIST work on your board? If so, enabling EIST will bring those temps way down.

By far the best air cooler is the ifx-14 by thermalright. review sites put it ahead of True, the latest scythe, 120 extreme.....it's the best there is today, period. The best part is that it can hold two fans because it is split, so one fan can go in the center with another on the outside in the conventional location. But even with just one fan it beats all other coolers by a wide margin, so on a "same fan, same fan speed" compare, it beats all comers. See the review on mad shrimps and other sites. It;s designed for either 120mm or 140mm fans. Only possible problem is because it's extra wide, it will hang over the side of the mobo on the EVGA and DFI mobos because they put the CPU socket near the board edge. On all other boards it will be fully over the board.

Well EIST is complicated here. I use the V1 1403 BIOS on V2. Most of the time with HT off and Bclck>=200, the multiplier stays at 21x (which is set manually in BIOS). But I do see a flash of 12x multiplier when cpu is idle. But that 12x is very short, like less than .5 second.