OC VR Design on Legacy Platforms
VCORE
VGFX
VIO
External VRs
CPU
VPLL
VSA
External VRs
•In current generation platforms, CPU VRs are on the motherboard
•Often, a separate VR exists for each rail to the CPU
•Voltage margining is accomplished using platform VRs
4th Generation Intel ® Core™ processor changes this dramatically with integrated voltage regulation
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