OC Ability Reference

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.

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.

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.

Reference setting : 5200MHz

• CPU Voltage: 1.58V	•	Base Clock: 100MHz
• CPU Ratio: 52	•	Internal PLL Overvoltage: Enabled

16 P67A-GD80 (B3) Overclocking Guide

P67A-GD80 (B3) Overclocking Guide 17

P67A-GD80 (B3) specifications

The MSI P67A-GD80 (B3) is a well-regarded motherboard, part of MSI's extensive lineup designed for Intel's second-generation Core processors, also known as the Sandy Bridge family. This ATX motherboard is geared towards enthusiasts and gamers, boasting a blend of advanced features, robust performance, and cutting-edge technologies.

One of the main features of the MSI P67A-GD80 (B3) is its support for Intel's LGA 1155 socket, allowing users to install a variety of powerful Sandy Bridge CPUs. It can accommodate dual-channel DDR3 memory, with support for speeds up to 2133 MHz when overclocked, and a maximum capacity of 32GB across four DIMM slots. This makes it an excellent choice for high-performance computing tasks and gaming applications.

The motherboard is equipped with multiple expansion slots, including two PCIe x16 slots that support AMD CrossFire technology, enabling users to run multiple graphics cards for enhanced gaming performance. In addition, there are various PCIe x1 slots for additional peripherals, enhancing versatility and upgrade options.

Storage options on the P67A-GD80 (B3) are plentiful, featuring six SATA 3.0Gb/s ports and two SATA 6.0Gb/s ports. This allows for high-speed data transfer rates and ensures compatibility with the latest storage devices. The integrated RAID support enables users to configure their drives for improved performance or redundancy.

In terms of connectivity, the P67A-GD80 (B3) includes USB 3.0 ports for faster data transfer rates with compatible devices. The motherboard also boasts MSI's military class II components, which provide enhanced durability and stability under heavy loads, especially important for overclocking scenarios.

The BIOS interface on the P67A-GD80 (B3) is user-friendly, enabling effective tweaking for performance-minded users. This motherboard comes equipped with additional MSI technologies such as DrMOS for improved power efficiency, and a Click BIOS, enhancing ease of use for both beginners and experienced users alike.

Overall, the MSI P67A-GD80 (B3) encapsulates a blend of performance and reliability, making it a solid choice for gamers and PC enthusiasts looking to build a powerful machine that can handle demanding applications with ease. Its advanced features and robust design stand out in a competitive market, making it a worthwhile investment for those seeking to maximize their computing experience.