I have Following Hardware : P5Q-E E8400 4 GB TWIN 2X 2048 - 6400 C5 DHX i am using these settings : AI Overclock tuner: MANUAL CPU Ratio Setting: AUTO FSB Frequency: 445 PCI-E Frequency: 100 FSB Strap to North Bridge: 400 DRAM Frequency: AUTO DRAM CLK Skew on Channel A1: AUTO DRAM CLK Skew on Channel A2: AUTO DRAM CLK Skew on Channel B1: AUTO DRAM CLK Skew on Channel B2: AUTO DRAM Timing Control: AUTO 1st Information: 5-5-5-18-3-54-6-3 2nd Information: 8-3-5-4-6-4-6 3rd Information: 14-5-1-6-6 DRAM Static Read Control: DISABLED DRAM Read Training: DISABLED MEM. OC Charger: ENABLED AI Clock Twister: AUTO AI Transaction Booster: AUTO CPU Voltage: 1.32 CPU GTL Voltage Reference (0/2): .630 CPU GTL Voltage Reference (1/3): .630 CPU PLL Voltage: 1.58 FSB Termination Voltage: AUTO DRAM Voltage: 2.0 NB Voltage: 1.14 NB GTL Reference: .630 SBridge Voltage: 1.1 PCIE SATA Voltage: AUTO Load Line Calibration: AUTO CPU Spread Spectrum: Disabled PCIE Spread Spectrum: Disabled CPU Clock Skew : AUTO NB Clock Skew : AUTO CPU Margin Enhancement: OPTIMIZED Advanced Settings C1e: Disabled Max CPUID Value Limit: Disabled Intel(r) Virtualization tech: Disabled CPU TM Function: Disabled Execute Disable Bit: Disabled Post screen Goes Good, BUt i dont get my Multi Boot screen to VIsta and Xp? In Morning , I was in Bios Setup. I changed the DRAM FREQUENCY to 800 Mhz, when i was changing the FSB values, the values in DRAM FREQUENCY automatically started changing with the change in FSB. I changed the FSB to 425 and DRAM FREQUENCY changed from 800 to 850? why this happend and Is 850 from RAm is Safe?