Intel DZ77GA-70K, Performance Tuning Manual, Page: 7 / 35

Intel DZ77GA-70K / DZ77RE-75K Desktop Board Performance Tuning Guide
7
2 3rd Generation Intel
®
Core™
Processor Family and Intel
®
Z77
Express Chipset General Concepts
2.1 Architecture
Intel Desktop Board DZ77GA-70K consists of the 3rd generation Intel Core processor
family and the Intel Z77 Express Chipset (the Platform Controller Hub (Intel Z77
PCH)).
The 3rd generation Intel Core processor family integrates the system memory
controller and the PCI Express x16 interface. DDR3 memory is accessed through two
independent memory channels.
A system clock that drives all Desktop Board
components is integrated into the Intel Z77 PCH. The Intel Z77 PCH provides support
for a PCI Express x1 interface, a PCI* bus, SATA, USB, and other system interfaces.
The Intel Z77 PCH communicates with the processor via the DMI bus. BIOS
performance tuning controls include processor turbo ratios, the system clock, and
processor and memory voltages. A simplified system block diagram is shown in Figure
2.1.
-
Core Frequency
-
Unlocked turbo limits (100MHz increments)
-
Programmable voltage offset to improve core
frequency limits
-
Graphics Frequency
-
Unlocked graphics turbo limits (50Mhz increments)
-
Unlocked graphics power limit ratios
-
Memory Ratio
-
Unlocked memory controller (XMP profiles, individual
timing parameters)
-
Unlocked memory controller voltage levels
-
Granularity options for 200 and 266MHz
-
DMICLK (aka BCLK)
-
Unlocked PCH clock controller (1MHz increments)
-
Unlocked CPU PLL voltage levels
• PEG and DMI Ratios
-
Fixed ratios