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Need help overclocking i5 6600k

Joined
Oct 19, 2007
Messages
8,199 (1.36/day)
Processor Intel i9 9900K @5GHz w/ Corsair H150i Pro CPU AiO w/Corsair HD120 RBG fan
Motherboard Asus Z390 Maximus XI Code
Cooling 6x120mm Corsair HD120 RBG fans
Memory Corsair Vengeance RBG 2x8GB 3600MHz
Video Card(s) Asus RTX 3080Ti STRIX OC
Storage Samsung 970 EVO Plus 500GB , 970 EVO 1TB, Samsung 850 EVO 1TB SSD, 10TB Synology DS1621+ RAID5
Display(s) Corsair Xeneon 32" 32UHD144 4K
Case Corsair 570x RBG Tempered Glass
Audio Device(s) Onboard / Corsair Virtuoso XT Wireless RGB
Power Supply Corsair HX850w Platinum Series
Mouse Logitech G604s
Keyboard Corsair K70 Rapidfire
Software Windows 11 x64 Professional
Benchmark Scores Firestrike - 23520 Heaven - 3670
Hey guys. I have built my new Skylake (net) machine and im trying to dabble in overclocking but it seems that no matter what I do, no matter what voltage I put the CPU at (gone up to 1.4 just for testing) it seems to fail shortly after starting prime95. I am also having issues with heat despite having an AIO water cooler on it. And the volts I push doesn't seem to matter in regards to temp. I literally fluctuate between 70*C-100*C. I ran prime the other day at 4.3GHz for 8hrs 30min with no errors in Prime. But when I got home from work I decided to try and fix the heat issue by reapplying thermal paste, reseating CPU, and my rear fan was being used as intake instead of exhaust so I fixed that as well.

I haven't really had to overclock anything since end of 2011 when I got my 2500k so I am a fair bit rusty on what settings I need to change in the bios. If anyone can help out it would be appreciated.

Full, up-to-date specs are in the system specs link.

Also, the back of the computer case where the exhaust fan/rad is for the CPU seems to be really warm. Playing WoW last night @ 4.3GHz the temps were about 50-55*C and the back of the case was really warm to the touch. I don't recall having that issue with my 2500k.

Windows 10 x64 is my main OS.
 
Joined
Dec 31, 2009
Messages
19,366 (3.70/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
Rocket science it is not! - Yoda

Really its still, CPU multiplier and voltage. Done... unless you benchmark then other stuff may be worth tweaking.

What AIO do you have? Where is it located in that case? What are ALL the fans doing(airflow)?
 
Joined
Oct 19, 2007
Messages
8,199 (1.36/day)
Processor Intel i9 9900K @5GHz w/ Corsair H150i Pro CPU AiO w/Corsair HD120 RBG fan
Motherboard Asus Z390 Maximus XI Code
Cooling 6x120mm Corsair HD120 RBG fans
Memory Corsair Vengeance RBG 2x8GB 3600MHz
Video Card(s) Asus RTX 3080Ti STRIX OC
Storage Samsung 970 EVO Plus 500GB , 970 EVO 1TB, Samsung 850 EVO 1TB SSD, 10TB Synology DS1621+ RAID5
Display(s) Corsair Xeneon 32" 32UHD144 4K
Case Corsair 570x RBG Tempered Glass
Audio Device(s) Onboard / Corsair Virtuoso XT Wireless RGB
Power Supply Corsair HX850w Platinum Series
Mouse Logitech G604s
Keyboard Corsair K70 Rapidfire
Software Windows 11 x64 Professional
Benchmark Scores Firestrike - 23520 Heaven - 3670
Rocket science it is not! - Yoda

Really its still, CPU multiplier and voltage. Done... unless you benchmark then other stuff may be worth tweaking.

What AIO do you have? Where is it located in that case? What are ALL the fans doing(airflow)?
See that's what I thought it was too. Ive tried playing with the base clock too with little success so far.

AIO as listed in system specs is a Corsair H60. Rad is on the rear exhaust fan in the back of the case. Top fan is exhaust, two side fans are intake and front is intake. All fans turn to High for better airflow.
 
Joined
Dec 31, 2009
Messages
19,366 (3.70/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
H60 is the single rad one, right? Make sure the pump is at 100%? At stock speeds it shouldn't reach 100C, that is for sure.
 
Joined
Oct 19, 2007
Messages
8,199 (1.36/day)
Processor Intel i9 9900K @5GHz w/ Corsair H150i Pro CPU AiO w/Corsair HD120 RBG fan
Motherboard Asus Z390 Maximus XI Code
Cooling 6x120mm Corsair HD120 RBG fans
Memory Corsair Vengeance RBG 2x8GB 3600MHz
Video Card(s) Asus RTX 3080Ti STRIX OC
Storage Samsung 970 EVO Plus 500GB , 970 EVO 1TB, Samsung 850 EVO 1TB SSD, 10TB Synology DS1621+ RAID5
Display(s) Corsair Xeneon 32" 32UHD144 4K
Case Corsair 570x RBG Tempered Glass
Audio Device(s) Onboard / Corsair Virtuoso XT Wireless RGB
Power Supply Corsair HX850w Platinum Series
Mouse Logitech G604s
Keyboard Corsair K70 Rapidfire
Software Windows 11 x64 Professional
Benchmark Scores Firestrike - 23520 Heaven - 3670
H60 is the single rad one, right? Make sure the pump is at 100%? At stock speeds it shouldn't reach 100C, that is for sure.
Single rad, yes. It's not at stock speeds that it gets to 100*C. Thats under 100% load using prime95. Idle it's around 30*C and in WoW (only game ive tested so far) it's about 50-55*C.
 
Joined
Dec 31, 2009
Messages
19,366 (3.70/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
Just because its under load doesn't mean it isn't at stock speeds...load has nothing to do with the clockspeed (unless you are thinking turbo or something).

Try running AIDA64 or an older version of P95 that doesn't have the AVX instructions, etc.
 
Joined
Oct 19, 2007
Messages
8,199 (1.36/day)
Processor Intel i9 9900K @5GHz w/ Corsair H150i Pro CPU AiO w/Corsair HD120 RBG fan
Motherboard Asus Z390 Maximus XI Code
Cooling 6x120mm Corsair HD120 RBG fans
Memory Corsair Vengeance RBG 2x8GB 3600MHz
Video Card(s) Asus RTX 3080Ti STRIX OC
Storage Samsung 970 EVO Plus 500GB , 970 EVO 1TB, Samsung 850 EVO 1TB SSD, 10TB Synology DS1621+ RAID5
Display(s) Corsair Xeneon 32" 32UHD144 4K
Case Corsair 570x RBG Tempered Glass
Audio Device(s) Onboard / Corsair Virtuoso XT Wireless RGB
Power Supply Corsair HX850w Platinum Series
Mouse Logitech G604s
Keyboard Corsair K70 Rapidfire
Software Windows 11 x64 Professional
Benchmark Scores Firestrike - 23520 Heaven - 3670
Just because its under load doesn't mean it isn't at stock speeds...load has nothing to do with the clockspeed (unless you are thinking turbo or something).

Try running AIDA64 or an older version of P95 that doesn't have the AVX instructions, etc.
CPUz shows it's not running stock speeds.
 
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