Seeing as how some of the newest socket LGA1155 processors, such as the Core i7-3770K, competes with Sandy Bridge-E HEDT platform, and how today's GPUs are beginning to benefit from PCI-Express 3.0 in x8 and x4 configurations, ASRock decided to go beyond its Z77 Fatal1ty Professional, and launched a new Extreme series model, with a focus on features and connectivity. The Z77 Extreme9 from ASRock crams has every square inch of its standard ATX size PCB with features. To begin with, the Z77 Extreme9 uses a fairly strong 8+4 phase VRM, which is similar to that of the Z77 Extreme6. The CPU VRM MOSFETs are cooled by a fairly big heatsink, which shares its head with a neighbouring heatsink, which cools a PLX PEX8747 PCI-Express 3.0 bridge chip, which takes in the lone PCI-Express 3.0 x16 link from the processor, and drives four of the board's six PCI-Express 3.0 x16 long slots, enabling 3-way and 4-way SLI/CrossFireX capability. The other slots are electrical PCI-Express 2.0, and wired to the Z77 PCH. 
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