Intel DZ77GA-70K / DZ77RE-75K Desktop Board Performance Tuning Guide
10
3 Intel Desktop Board DZ77GA-70K
Performance Tuning Using BIOS
Setup
3.1 Hardware Considerations for Performance
Tuning
3.1.1 Processor
In addition to Intel Desktop Board DZ77GA-70K, a processor that allows the desired
level of performance tuning by the user is required. Performance tuning capability
with the 3rd 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 3rd
generation Intel Core i5 and 3rd 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. 3rd 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 DZ77GA-70K, 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.
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