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.
- CoreFrequency
- Unlockedturbolimits(100MHzincrements)
- Programmablevoltageoffsettoimprovecore
frequencylimits
- GraphicsFrequency
- Unlockedgraphicsturbolimits(50Mhzincrements)
- Unlockedgraphicspowerlimitratios
- MemoryRatio
- Unlockedmemorycontroller(XMPprofiles,individual
timingparameters)
- Unlockedmemorycontrollervoltagelevels
- Granularityoptionsfor200and266MHz
- DMICLK(akaBCLK)
- UnlockedPCHclockcontroller(1MHzincrements)
- UnlockedCPUPLLvoltagelevels
• PEGandDMIRatios
- Fixedratios
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