MSI P67A-GD80 (B3) OC Guide - Manual (Page 9)

P67A-GD80 (B3) Overclocking Guide P67A-GD80 (B3) Overclocking Guide
Advanced Memory Timing Setting
After selecting DRAM Timing Mode, the Advanced DRAM Configuration
menu can be used to adjust memory settings. The left side shows the
memory’s default settings while the right side can be used to change the
memory’s timing.
CPU Feature
The CPU Feature menu can be used to adjust settings such as Execute Disable
Bit, Virtualization Technology, Power Technology, C-State, etc. The Long/
Short Duration Power Limit setting in particular can be used to adjust CPU
TDP wattage limit. These two settings will affect the processor when it is
under heavy load but will not affect CPU ratio.
OC Ability Reference
Now, taking the P67A-GD80 (B3) mainboard with the Intel’s latest Core i5
2500K CPU as an example, we will set Core Speed and Memory Frequency as
overclocking items to introduce some points and notices to users for refer-
ence.
• CPU Voltage: 1.58V
• CPU Ratio: 52
• Base Clock: 100MHz
Reference setting : 5200MHz
Demo system configuration
Motherboard P67A-GD80 (B3)
BIOS V A.0C
CPU Core i5 2500K
Memory G-Skill F3 - 17600 CL7D-4GBPIS
Graphics Card MSI Nvidia GeForce GTX470
HDD Intel SSDSA2MH080G2GC
PSU XIGMATEK NRP-HC1001 1000W
OS Windows 7 64-bit Ultimate RTM 7600
Note: Although the BIOS is the Beta edition, but the function will be added into the official
edition.
Max CPU Core Speed
Previous platforms based on the P55 and X58 chipsets can overclock up to
about 4GHz~4.2GHz with air cooling. The unlocked ratio of the LGA 1155 K
SKUs allows the new CPU to overclock even further. K CPUs depend on CPU
ratio to overclock, while using base clock to make finer adjustments. CPU
voltage can be controlled with the VCore Voltage setting. CPU I/O voltage
should also be adjusted in with respect to base clock. In addition, changing
Vdroop voltage to Low Vdroop will increase stability for systems under heav-
ing load. Extra care should be taken when using Low Vdroop, as voltage can
be erratic as well under heavy load.
• Internal PLL Overvoltage: Enabled