Intel DP67BG Desktop Board Performance Tuning Guide
9
3 Intel Desktop Board DP67BG
Performance Tuning Using BIOS
Setup
3.1 Hardware Considerations for Performance
Tuning
3.1.1 Processor
In addition to Intel Desktop Board DP67BG, a processor that allows the desired level of
performance tuning by the user is required. Performance tuning capability with the 2
nd
generation Intel Core processor family is dependent on the selected processor. Fully
unlocked processor numbers end in the letter “K” and have maximum performance
tuning potential using the system clock and turbo ratios. All 2
nd
generation Intel Core
i5 and 2
nd
generation Core i7 processor numbers that do not end in the letter “K” are
partially unlocked. Partially unlocked processors allow system clock and limited turbo
ratio increases. 2
nd
generation Intel Core i3 processors do not have turbo mode
capability and, therefore, allow performance tuning using the system clock only.
3.1.2 Memory
Memory modules with XMP profiles have pre-programmed optimized performance
settings created by the manufacturer that can be selected in the BIOS. Using XMP
profiles can simplify memory performance tuning. Capability for memory performance
tuning will likely be limited if low speed, low cost DIMMs are being used.
3.1.3 Power Supply
Performance tuning will increase the demand on the system power supply. Lower
wattage power supplies may have insufficient capacity once the load imposed by the
board, graphics card(s), the processor cooler, other system fans, hard drives, CD/DVD
drives, and other accessories are combined. Inadequate power supply capacity will
result in system shutdowns and stability problems when performance tuning is
attempted or later when a performance tuned system is being operated.
For Intel Desktop Board DP67BG, the power supply should have at least 150 watts of
unused capacity to accommodate the typical needs of performance tuned processor
and memory. For more extreme performance, additional capacity beyond the extra
150 watts will be needed. Additional power supply capacity will also be needed if a
performance tuned graphics card or pair of graphics cards will be included in the
system. Consult the graphics card manufacturer’s specifications to determine these
additional capacity requirements.