Did you reach the maximum overclocking setting for your i5-6600K?
Did you reach the maximum overclocking setting for your i5-6600K?
These are my specifications:
i5-6600K
Gigabyte Z170X Gaming 5
16gb GSkill Ripjaws V 3200 Mhz, Cas 14, 1.35 V
I recently got my i5-6600K and reached its maximum at around 4.4Ghz. When attempting to increase it to 4.5Ghz in Prime95, I encountered rounding errors on a couple of cores. Despite this, temperatures (as reported by CPUID and HWMonitor) stayed below 70°C. My readings at 4.4Ghz during Prime95 tests were approximately 70°C.
According to CPU-Z, my processor details are:
Model: E
Stepping:3
Revision: R0
For the overclock attempt, I turned off turboboost. Here are my current settings...
BCLK: 100 mhz
CPU Multiplier: 44
CPU Vcore: 1.365 V
DRAM Voltage: 1.38 V
XMP Profile enabled (Memory Multiplier = 32)
As mentioned earlier, raising the CPU Multiplier to 45 caused failure in Prime95 after about a second. I've also experimented with increasing the CPU Vcore up to 1.4V and lowering memory speed to 3000Mhz, but neither solution succeeded.
Anyone have advice? Or am I approaching the limit of my CPU?
Reduce memory speed to 2666MHz, adjust Multiplier to 43, and set Base Clock to 105.
Test using AIDA64 Extreme, not Prime95. Prime95 causes excessive CPU load and abnormal temperatures.
After downloading AIDA64 Extreme, open the Tools menu at the top and run the System Stability Test. Choose CPU, FPU, Cache, and System Memory. Exclude GPU and Local Disk. Execute the test for thirty minutes.
Lower your DRAM Voltage to 1.37V once the clock is adjusted.
Reduce memory speed to 2666MHz, adjust Multiplier to 43, and set Base Clock to 105.
Test using AIDA64 Extreme, not Prime95. Prime95 causes excessive CPU load and abnormal temperatures.
After downloading AIDA64 Extreme, open the Tools menu at the top and run the System Stability Test. Choose CPU, FPU, Cache, and System Memory. Exclude GPU and Local Disk. Execute the test for thirty minutes.
Lower your DRAM Voltage to 1.37V after adjusting the clock.
It seems you're reaching the practical limit. The move to 4.5 would likely require about 1.42V, which is considered Skylake's safe threshold. Yet, why push toward the edge of stability and performance? I'd stick with 4.4, since it remains as quick as a 4.8GHz Haswell.
may i inquire about the cpu cooler you're employing? those temperatures appear elevated. how are you tracking temperatures? cpu-z plus motherboard statistics?
weberdarren97 :
adjust memory speed to 2666MHz, set multiplier to 43, and base clock to 105.
Test using AIDA64 Extreme, not Prime95.
Prime95 causes excessive CPU load and high temperatures.
After downloading AIDA64 Extreme, open the Tools menu at the top and run the System Stability Test.
Select CPU, FPU, Cache, and System Memory; exclude GPU and Local Disk.
Run the test for thirty minutes.
Reduce DRAM voltage to 1.37V after lowering the clock.
For consistency, I only increase Vram voltage in even increments.
At 1.34V I encountered P95 errors; going to 1.36 stopped them but didn’t reach 4.5Ghz.
I’ll settle for 1.36 to allow further overclocking attempts.
consider reducing the Multiplier to 42 and adjusting the Base Clock to 108. You might need to raise the core voltage slightly by .002 volts for stability.
The suggestion to BCLK overclocking in a K-series is unusual—overclocking via BLCK is usually preferable to changing the multiplier. It seems you're either unfamiliar with the topic or trying to provoke a reaction.
I'm not sure which option is better. But if the multiplier is leading to issues, I thought adjusting the base clock could help. Yes, the K series chip from Intel is designed for overclocking through the multiplier. Still, my CPUs handle base clock changes fairly well, as long as you don't increase it by more than 10MHz at once and monitor CPU and VRM temperatures.