GA-890FXA-UD5 rev. 2.0 Motherboard
G.SKILL PIS Series 4GB (2X2GB) 240-Pin SDRAM DDR3 2200 (PC3 17600) F3-17600CL7D-4GBPIS
Window 7 Ultimate 64bit
Would anyone be able to explain to me how to run this RAM at 1866MHz? My motherboard specs show that I can reach DDR3 1866MHz as long as I use two memory modules and install them in DDR3_3 and DDR3_4, and that I have to overclock. They are both in DDR3_3 and DDR3_4 DIMM slots and they are brand new. The following link, http://www.giga-byte.ca/FileList/MemorySup...-890fxa-ud5.pdf, shows which brand/type of RAM my motherboard can run at 1866MHz. In this case I chose the G.Skill DDR3 2200, and to downgrade it to 1866MHz as it is listed in the link. I already updated my BIOS.
I’m sure I need help overclocking my CPU correctly so the RAM can operate at 1866MHz. Currently I cannot operate RAM above 1600MHz. I can set in the bios, but my system will not load windows if the RAM is above 1600MHz. BIOS has a Mem Clock with multipliers. If I set the CPU Frequency to 280, and the Mem Clock to x6.66 I receive 1866MHz, but my system will not open Windows, and instead I receive a BIOS message showing the BIOS defaults were loaded because Windows could not operate with BIOS changes I made, and the settings I changed are lost. If I set the CPU frequency to 233 and Mem Clock to x8.00 I receive 1864MHz, but still the OS will not load. I researched online and read “Dolk’s Guide to the Phenom II Overclockers Forum” found in the following link http://www.overclockers.com/forums/showthread.php?t=596023. I followed the instructions, but received constant errors, freezes, and BSOD. I also manually adjusted BIOS: CPU Clock Ration, CPU Northbridge Frequency, CPU Frequency, Mem Clock, NB Voltage Control, and the HT Link Frequency. Windows will not load anytime I change the CPU Frequency.
I guess I’m settings the BIOS incorrectly. What BIOS changes do I need to make in order to run CPU Frequency at 280 or 233 correctly? Please help.
Edited by l0uie12, 24 July 2010 - 03:03 PM.