- Mar 21, 2018
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Hey friendly people,
I am quite new to overclocking and I ran into a problem I have not been able to fix.
I recently upgraded a system with a custom waterloop and hence wanted to try to overclock my
i7 7700k. I delided the cpu and replaced the compound with liquid metal. The waterloop runs good (looks amazing too) and my cpu temperatures are crazy low (30-35C on idle, 60-65 on full load even after hours of stress testing).
I tried to overclock my CPU from 4,2ghz to 5ghz (since cooling is not a problem) and ran into the following issue: Even with Intel SpeedStep turned off in BIOS, the clock speeds of my 4 cores fluctuate randomely between 5000MHz and 4300MHz even under full load (based on HWMonitor).
Now since it isn't thermal throttling (my temps never go higher then 65C) I upped the Voltage to 1.350V - same result.
Is it maybe my power supply ("only" 650W for the complete system, pump etc.) or did I miss a setting in my BIOS? Since I originally didn't plan to go all out on cooling and overclocking, my motherboard of choice, ASRock Z270 Pro4, was a poor decision (as far as I have read in other threads). Is it maybe the poor Motherboard or an old BIOS? Or did I just lost the silicon lottery (which I don't believe to be the issue)?
Here are my full specs:
System: Microsoft Windows 10 Home (x64) Build 16299.309
CPU: Intel Core i7-7700K
Motherboard: ASRock Z270 Pro4
BIOS Vendor: American Megatrends Inc.
BIOS Version: P2.00
BIOS Release Date: 04/12/2017
BIOS Start Segment: F000 (if those help)
Memory: 2x 8gb DDR4 SDRAM in Dual Channel
GPU: KFA2 GeForce® GTX 1080 EXOC (with alphacool Waterblock)
Powersupply: EVGA Supernova 650 gs
Sorry if I missed something important.
I can make some photos of my bios settings if that would help.
Thanks for having a look!
Edit: My Bios settings in the OC Tweaker
I am quite new to overclocking and I ran into a problem I have not been able to fix.
I recently upgraded a system with a custom waterloop and hence wanted to try to overclock my
i7 7700k. I delided the cpu and replaced the compound with liquid metal. The waterloop runs good (looks amazing too) and my cpu temperatures are crazy low (30-35C on idle, 60-65 on full load even after hours of stress testing).
I tried to overclock my CPU from 4,2ghz to 5ghz (since cooling is not a problem) and ran into the following issue: Even with Intel SpeedStep turned off in BIOS, the clock speeds of my 4 cores fluctuate randomely between 5000MHz and 4300MHz even under full load (based on HWMonitor).
Now since it isn't thermal throttling (my temps never go higher then 65C) I upped the Voltage to 1.350V - same result.
Is it maybe my power supply ("only" 650W for the complete system, pump etc.) or did I miss a setting in my BIOS? Since I originally didn't plan to go all out on cooling and overclocking, my motherboard of choice, ASRock Z270 Pro4, was a poor decision (as far as I have read in other threads). Is it maybe the poor Motherboard or an old BIOS? Or did I just lost the silicon lottery (which I don't believe to be the issue)?
Here are my full specs:
System: Microsoft Windows 10 Home (x64) Build 16299.309
CPU: Intel Core i7-7700K
Motherboard: ASRock Z270 Pro4
BIOS Vendor: American Megatrends Inc.
BIOS Version: P2.00
BIOS Release Date: 04/12/2017
BIOS Start Segment: F000 (if those help)
Memory: 2x 8gb DDR4 SDRAM in Dual Channel
GPU: KFA2 GeForce® GTX 1080 EXOC (with alphacool Waterblock)
Powersupply: EVGA Supernova 650 gs
Sorry if I missed something important.
I can make some photos of my bios settings if that would help.
Thanks for having a look!
Edit: My Bios settings in the OC Tweaker
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