I tried all possible way to install Mountain Lion on my "Intel D975XBX2". Unfortunately not a single installation process help me to install properly. I could boot it on safe mode only. So I think ML does not support this motherboard. If some body could install it properly than please give some tips so that I can use ML on my system. My Processor is Core 2 Quad 2.4Ghz and memory 4GB, Graphics card GeForce 8400 GS 512MB with 1TB HDD SATA (Set to AHCI).