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Not possible to exceed 4.2GHZ for i5 6600K processor

Not possible to exceed 4.2GHZ for i5 6600K processor

A
ArchangelZ21
Member
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209
02-12-2016, 12:58 AM
#1
Hello. Here are the details of your setup:
Case : NZXT Source 340 Black
Power Suply : Thermaltake Smart SE 630W, 80 PLUS Gold
Ram : HyperX Fury Black 16GB DDR4 2133MHz CL14 Dual Channel Kit 2x8GB
Motherboard : GIGABYTE GA-Z170-HD3P
Processor : Intel Skylake, Core i5 6600K 3.5GHz box
Cooler : Cooler CPU NZXT Kraken X62
Video Card : ASUS GeForce® GTX 1070 STRIX OC, 8GB GDDR5, 256-bit
I was able to push the CPU to 4.2ghz using 1.215V, but it doesn’t seem to go higher than that. When I try 4.3 with 1.4V on Prime95, it causes errors. Any suggestions on why this is occurring?
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A
ArchangelZ21
02-12-2016, 12:58 AM #1

Hello. Here are the details of your setup:
Case : NZXT Source 340 Black
Power Suply : Thermaltake Smart SE 630W, 80 PLUS Gold
Ram : HyperX Fury Black 16GB DDR4 2133MHz CL14 Dual Channel Kit 2x8GB
Motherboard : GIGABYTE GA-Z170-HD3P
Processor : Intel Skylake, Core i5 6600K 3.5GHz box
Cooler : Cooler CPU NZXT Kraken X62
Video Card : ASUS GeForce® GTX 1070 STRIX OC, 8GB GDDR5, 256-bit
I was able to push the CPU to 4.2ghz using 1.215V, but it doesn’t seem to go higher than that. When I try 4.3 with 1.4V on Prime95, it causes errors. Any suggestions on why this is occurring?

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E
echigo3210
Member
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180
02-12-2016, 01:13 AM
#2
Hi there,
Please avoid over-relying on Prime95. It generates loads that don't reflect real usage and won't keep your rig stable during full operation. Now I prefer ADA64 for short bursts of 30 minutes, as it closely mimics typical conditions and avoids issues altogether.

I also experiment with dynamic voltage by setting the VCore to "Normal" with a DVID off setting, which results in voltages around 1.320 V, 1.322 V at +0.085, and 1.392 V at +0.090. You can continue adjusting until you find what suits your setup best—this is just a starting point.

Note: DVID
1.440
/Max
1.380
- DVID
1.452
/Max
1.392
For the CPU:
[1] CPU Core Ratio: 4600
[2] Base Clock (Bclk): 100 MHz
[3] Early Power FCLK: 1 GHz (x10)
[4] Uncore Ratio: 4500
[5] CPU Flex Override: Disabled

[6] Intel Turbo Boost: Disabled
[7] CPU Enhanced Halt (C1E): Enabled
[8] C3 State Support: Disabled
[9] C6/C7 State Support: Disabled
[10] C8 State Support: Disabled
[11] CPU Thermal Monitor: Enabled
[12] CPU EIST Function: Enabled
[13] Voltage Optimization: Enabled
[14] Residency State Regulation (RSR): Disabled

[15] Hardware Prefetcher: Enabled
[16] Adjacent Cache Line Prefetch: Enabled
[17] Extreme Memory Profile (X.M.P.): Profile 1
[18] System Memory Multiplier: 3000
[19] Memory Enhancement Settings: Relax OC
[20] Memory Multiplier Tweaker: 2
[21] Channel Interleaving: Enabled
[22] Rank Interleaving: Enabled
[23] CAS Latency: 13
[24] tRCD: 16
[25] tRP: 16
[26] tRAS: 28
[27] Command Rate (tCMD): 1
[28] CPU VCore Loadline Calibration (LLC): High
[29] CPU VCore (Dynamic DVID): 0.135 V (for better stability)
[30] CPU VCCIO: Auto
[31] CPU System Agent Voltage: Auto
[32] PCH Core: Auto
[33] DRAM Voltage (CH A/B): 1.480 V
[34] DRAM Training Voltage (CH A/B): 1.480 V
[35] Internal Graphics: Disabled

[7/7] All listed BIOS settings are summarized below, with the numbers provided in the previous lines.
This compilation includes every adjustment recorded, and I hope it proves useful—worth trying out!
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E
echigo3210
02-12-2016, 01:13 AM #2

Hi there,
Please avoid over-relying on Prime95. It generates loads that don't reflect real usage and won't keep your rig stable during full operation. Now I prefer ADA64 for short bursts of 30 minutes, as it closely mimics typical conditions and avoids issues altogether.

I also experiment with dynamic voltage by setting the VCore to "Normal" with a DVID off setting, which results in voltages around 1.320 V, 1.322 V at +0.085, and 1.392 V at +0.090. You can continue adjusting until you find what suits your setup best—this is just a starting point.

Note: DVID
1.440
/Max
1.380
- DVID
1.452
/Max
1.392
For the CPU:
[1] CPU Core Ratio: 4600
[2] Base Clock (Bclk): 100 MHz
[3] Early Power FCLK: 1 GHz (x10)
[4] Uncore Ratio: 4500
[5] CPU Flex Override: Disabled

[6] Intel Turbo Boost: Disabled
[7] CPU Enhanced Halt (C1E): Enabled
[8] C3 State Support: Disabled
[9] C6/C7 State Support: Disabled
[10] C8 State Support: Disabled
[11] CPU Thermal Monitor: Enabled
[12] CPU EIST Function: Enabled
[13] Voltage Optimization: Enabled
[14] Residency State Regulation (RSR): Disabled

[15] Hardware Prefetcher: Enabled
[16] Adjacent Cache Line Prefetch: Enabled
[17] Extreme Memory Profile (X.M.P.): Profile 1
[18] System Memory Multiplier: 3000
[19] Memory Enhancement Settings: Relax OC
[20] Memory Multiplier Tweaker: 2
[21] Channel Interleaving: Enabled
[22] Rank Interleaving: Enabled
[23] CAS Latency: 13
[24] tRCD: 16
[25] tRP: 16
[26] tRAS: 28
[27] Command Rate (tCMD): 1
[28] CPU VCore Loadline Calibration (LLC): High
[29] CPU VCore (Dynamic DVID): 0.135 V (for better stability)
[30] CPU VCCIO: Auto
[31] CPU System Agent Voltage: Auto
[32] PCH Core: Auto
[33] DRAM Voltage (CH A/B): 1.480 V
[34] DRAM Training Voltage (CH A/B): 1.480 V
[35] Internal Graphics: Disabled

[7/7] All listed BIOS settings are summarized below, with the numbers provided in the previous lines.
This compilation includes every adjustment recorded, and I hope it proves useful—worth trying out!

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F
Fireano
Junior Member
Find
45
02-12-2016, 01:31 AM
#3
Consider trying OCCT instead, since Prime95 may not be ideal for stress testing CPUs. If you must use it, editing the files and turning off AVX instructions is suggested.
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F
Fireano
02-12-2016, 01:31 AM #3

Consider trying OCCT instead, since Prime95 may not be ideal for stress testing CPUs. If you must use it, editing the files and turning off AVX instructions is suggested.

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W
Wilburbud
Junior Member
Find
15
02-18-2016, 05:24 PM
#4
Sure, I'll experiment with those settings and observe the outcome, thanks!
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Wilburbud
02-18-2016, 05:24 PM #4

Sure, I'll experiment with those settings and observe the outcome, thanks!

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BrokenSlimez
Junior Member
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4
02-18-2016, 05:36 PM
#5
Using hwinfo to track temperatures, I observed 4.6GHz at 1.395V now. During testing with OCCT, CPU temperatures appear normal, reaching a maximum of 75°C. However, the VRM temperature spikes up to 125°C when using the OCCT large data set. At 1.215V and 4.2GHz, it rises to between 105-110°C. Also, when I set VCCSA and VCPIO to auto, they reach 1.35V, which seems excessive—likely beyond the safe limit, as the maximum safe voltage should be around 1.25V.

My BIOS settings are:
[1] - CPU Core Ratio: 46
[2] - FCLK Frequency For Early Power: 1 GHz
[3] - Uncore Ratio: 35
[4] - CPU Flex Override: Disabled
[5] - Intel Turbo Boost Technology: Disabled
[6] - CPU Enhanced Halt (C1E): Disabled
[7] - C6/C7 State Support: Disabled
[8] - C8 State Support: Disabled
[9] - CPU Thermal Monitor: Enabled
[10] - CPU EIST Function: Enabled
[11] - Voltage Optimization: Enabled
[12] - Residency State Registration (RSR): Disabled
[13] - Hardware Prefetcher: Enabled
[14] - Adjacent Cache Line Prefetch: Enabled
[15]-Extreme Memory Profile (X.M.P.):
Profile 1
[16]-System Memory Multiplier: 30
[17]-Memory Enhancement Settings:
Extreme Performance
[18]-Channel Interleaving: Enabled
[19]-Rank Interleaving: Enabled
[20]-CAS Latency: 15
[21]-tRCD: 17
[22]-tRP: 17
[23]-tRAS: 28
[24]-Command Rate (tCMD): 1
[25]-CPU VCore Loadline Calibration (LLC): High
[26]-CPU VCore:
1.395V
-
HWINFO indicates max 1.380V
[27]-CPU VCCIO: 1.10V
[28]-CPU System Agent Voltage: 1.10V
[29]-PCH Core: Normal
[30]-DRAM Voltage (CH A/B):
1.320V - HWINFO says max 1.308V
[31]-Internal Graphics: Disabled

Testing stability in Aida is ongoing; I should focus on which tests to prioritize? Should I check the CPU, FPU, cache, and system memory? I just completed a 30-minute stability test in Aida with CPU, FPU, cache, and system memory all checked—no issues detected, max CPU temperature reached 69°C.

VRM is at 94°C, which is within normal limits.
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B
BrokenSlimez
02-18-2016, 05:36 PM #5

Using hwinfo to track temperatures, I observed 4.6GHz at 1.395V now. During testing with OCCT, CPU temperatures appear normal, reaching a maximum of 75°C. However, the VRM temperature spikes up to 125°C when using the OCCT large data set. At 1.215V and 4.2GHz, it rises to between 105-110°C. Also, when I set VCCSA and VCPIO to auto, they reach 1.35V, which seems excessive—likely beyond the safe limit, as the maximum safe voltage should be around 1.25V.

My BIOS settings are:
[1] - CPU Core Ratio: 46
[2] - FCLK Frequency For Early Power: 1 GHz
[3] - Uncore Ratio: 35
[4] - CPU Flex Override: Disabled
[5] - Intel Turbo Boost Technology: Disabled
[6] - CPU Enhanced Halt (C1E): Disabled
[7] - C6/C7 State Support: Disabled
[8] - C8 State Support: Disabled
[9] - CPU Thermal Monitor: Enabled
[10] - CPU EIST Function: Enabled
[11] - Voltage Optimization: Enabled
[12] - Residency State Registration (RSR): Disabled
[13] - Hardware Prefetcher: Enabled
[14] - Adjacent Cache Line Prefetch: Enabled
[15]-Extreme Memory Profile (X.M.P.):
Profile 1
[16]-System Memory Multiplier: 30
[17]-Memory Enhancement Settings:
Extreme Performance
[18]-Channel Interleaving: Enabled
[19]-Rank Interleaving: Enabled
[20]-CAS Latency: 15
[21]-tRCD: 17
[22]-tRP: 17
[23]-tRAS: 28
[24]-Command Rate (tCMD): 1
[25]-CPU VCore Loadline Calibration (LLC): High
[26]-CPU VCore:
1.395V
-
HWINFO indicates max 1.380V
[27]-CPU VCCIO: 1.10V
[28]-CPU System Agent Voltage: 1.10V
[29]-PCH Core: Normal
[30]-DRAM Voltage (CH A/B):
1.320V - HWINFO says max 1.308V
[31]-Internal Graphics: Disabled

Testing stability in Aida is ongoing; I should focus on which tests to prioritize? Should I check the CPU, FPU, cache, and system memory? I just completed a 30-minute stability test in Aida with CPU, FPU, cache, and system memory all checked—no issues detected, max CPU temperature reached 69°C.

VRM is at 94°C, which is within normal limits.

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