Who is an Asus board "Asus P8Z77-V Pro" along with a cooler "Scythe Mugen 3 Rev.B SCMG-3100" operates, is the fan can not be mounted on the side of the memory chips due to the height of the heatspreader of the memory chips.
Depending on the case can be inconvenient. Because most power supplies feed the air and push it to the rear. If the fan is mounted on the Scythe on the other hand (and the blowing direction is not reversed), pushes the Scythe the air towards the housing front. And here are happy to install "inward blowing fan". One should always make sure that the air "logical" flows.
In my case (power supply is always down and not bother), I have the rear case fan flipped (he now pulls cold air from the outside), the Scythe shot (he draws cold air from behind and pushes the warm air towards the housing front) and the front case fan is rotated (it pushes the warm air from the processor to the outside).
In this way, the built-i7 3770K remains to 4.2 Ghz in the range below 80 ° (see also my Recension of 3770K and above the radiator).
Who does not want this car Umbauerei, Rams should buy less Raubedarf upwards. Ok Ok. You could also buy another processor cooler, but the Scythe has actually a great price / performance ratio.
Discussions on the speed of RAM I no longer lead now.
Zusatztip (from tolerable experience): searches the net for "Memtest86 +" and let this test for a new purchase RAM overnight through (better 24h). Then you have the chance that the memory works permanently reliable.
If this was helpful, I would appreciate a review.
PS: I have not written reviews for inwzischen mentioned board and processor. These are random notes on system definition "hidden" ...