What do the ROG connect settings do?
BCLK MHz
Base Clock
-Similar to theolder FSB “Front Side Bus”
BCLK x CPU ratio = CPU frequency
Adjust the BCLK frequency to overclock the CPU speed!
PCIE MHz
Periferal Connect Interface Express
-Video Graphics communication link
CPU Voltage
Central Processing Unit
-Processor core voltage
DO NOT EXCEED 1.65v
IMC Voltage
Vtt
- L3 shared cache
- memory controller
- processor I/O power rail
Since memory controller frequency is dependent on BCLK, the higher the BCLK, the higher the IMC voltage required. DO NOT Exceed 1.55v
DRAM Voltage
DDR3 Random Access Memory
-Memory Voltage
Since DRAM speed is linked to the BCLK the higher the BCLK the higher the DRAM Voltage is needed
CPU PLL Voltage
PLL: Phase Locked Loop voltage
- Processor/IMC(Integrated Memory Controller)/other internal clock cycles
- Clock multiplying of processor is provided by an internal Phase Locked Loop
Does not have a significant effect on CPU Speed
PCH Voltage
Platform Controller Hub
- main I/O interface for CPU
- display connectivity
- Integrated Audio
- power management features
- Storage features
The higher the CPU frequency, the harder the I/O (input and output) has to work so there is higher power consumption and more heat is generated, raising the CPU temperature. The PCH voltage needs to be increased in order to stabilize I/O signaling. DO NOT EXCEED 1.25v
To achieve the maximum OC, begin with Increasing the BCLK in 5 to 10MHz increments.
1. If you crash increase your voltage before you boot
2. Run SuperPi 1M to test for stability
3. Continue increasing the frequency and voltages in increments
Unstable System: increase the voltages . OR Lower the Frequencies (133 BCLK is stock) Keep repeating this until the system is stable.
*Tip*: The best way to find out which voltage is causing the instability is Process of Elimination “according to your 6th sense” adjust one voltage at a time to higher values with ALL other voltages staying unchanged and see if the system is stable after this. If it is not stable, then try tweaking another voltage in the same way. WARNING too high of a voltage can cause instability!