I recently purchased and started assemling the following setup....
CPU: AMD Phenom II X4 955 Black Edition
CPU Heatsink: Thermalright Ultra-120 Extreme & Sythe S-Flex 800rpm fan
Motherboard: Gigabyte GA-MA970XT-UD4P
RAM: 2 x OCZ Technology DDR3 PC3-10666 1333Mhz 4GB (2x2GB)
Graphics: XFX ATI Radeon HD 4870 512MB DDR5 (HD-487A-YDFC)
HDDs: 4 x Seagate 160GB SATA 3.5IN 7200RPM 8MB SATA300
Case: Antec Three Hundred (plus extra 3 x Antec 3 speed 120mm case fans - no LEDs)
PSU: Thermaltake Toughpower 750W
DVD: LG 22x DVD RW
First problem I ran into is that the heatsink won't with all the RAM installed.
I am looking for some advice on other heatsink to try?
FYI The heatsink pretty much needs to avoid overhanging the memory as the Reaper RAM has its own heatsink which makes it particularly high. Here are links for the motherboard and RAM: