Overclocking i7 4790K at 4.6 Ghz is a common inquiry.
Overclocking i7 4790K at 4.6 Ghz is a common inquiry.
What is the right core voltage for 4.6 ghz? Should I use adaptive or offset modulation?
Should I set the "cpu cache voltage"? Or should I let it adjust automatically?
Should I configure the "cpu cache ratio"? Or should I set that automatically?
Other multipliers need stronger voltages.
Certain chips perform better, allowing lower voltage needs at the same multiplier.
Greater voltages produce more heat.
There’s a maximum temperature a chip can handle.
The chip will track temperatures and may slow down or shut down to stay safe.
Around 100c is typical.
Long-term high temps or voltages can harm your processor and cause early failure.
What should you do?
Install a quality cooler and case to manage heat.
85c for a stress test.
75c for regular use.
A CPU can be removed to improve temperature regulation.
(but you risk voiding any warranty)
Each chip behaves uniquely, which means the voltage needed for 4.6ghz changes. Also, cooling affects how much voltage is safe to use. Unless you specifically want to boost the cache speed, it's best to keep voltage and clocks at their default settings. The cache doesn't require overclocking with the CPU.
Yes, actually, I prefer not to increase the cache speed. What about your performance?
Use the appropriate mode after the correct voltage is identified.
These connections need to be grasped:
Greater multipliers demand higher voltages.
Certain chips perform better, as the voltage needed at each multiplier might be lower.
Higher voltages produce more heat.
There’s a maximum temperature a chip can handle.
A chip will watch temperatures and will reduce performance or shut down to stay safe—around 100c.
Long-term use at high temps or voltages can harm your processor and cause early failure.
What should you do?
Install a quality cooler and case to manage heat.
85c for a stress test; 75c for regular use.
You might want to remove the CPU for better temperature control (but risk voiding warranty and affecting quality).
Maintain voltage stability.
CPU-Z is a simple tool for monitoring.
I don’t remember exact values, but I believe 1.4v is near the upper limit; 1.35v is preferable.
Use speedstep to lower voltage and multiplier when the CPU is idle.
Think about your goals.
How significant would a change from a 45 multiplier to 46 be for your app or game?
I lack experience with cache overclocking, so I'm uncertain about the performance impact of not doing it.
Most people agree to keep the CPU below 1.3-1.35v during overclocking.