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Need Advice on Overclocking 5820k

post #1 of 7
Thread Starter 
I'm fairly new to overclocking and could use some advice. Just built my 5820k rig with an Asus X99-A board. I used the 5-Way Optimization feature to overclock my cpu, which landed at 4.609. I've tried a couple of games and everything has been solid. Ran 3D Mark and my pc crashed due to cpu overheating.

Should I scale back the overclock due to this? If it runs fine in my games and only crashes on a stress test like 3D Mark is that ok or should I be concerned? If I need to reduce the overclock, what would you recommend? Should I just reduce the ratio for my 6 cores from 46 to something lower and keep everything else the same? Currently it is:

BCLK: 100.2
Ratio: 46
CPU Cache Ratio: 30x

CPU Core Voltage
Offset Voltage: .075
OC Voltage: 1.225
post #2 of 7
Quote:
Originally Posted by Xerin7 View Post

I'm fairly new to overclocking and could use some advice. Just built my 5820k rig with an Asus X99-A board. I used the 5-Way Optimization feature to overclock my cpu, which landed at 4.609. I've tried a couple of games and everything has been solid. Ran 3D Mark and my pc crashed due to cpu overheating.

Should I scale back the overclock due to this? If it runs fine in my games and only crashes on a stress test like 3D Mark is that ok or should I be concerned? If I need to reduce the overclock, what would you recommend? Should I just reduce the ratio for my 6 cores from 46 to something lower and keep everything else the same? Currently it is:

BCLK: 100.2
Ratio: 46
CPU Cache Ratio: 30x

CPU Core Voltage
Offset Voltage: .075
OC Voltage: 1.225

What temps are you getting? Did your PC turn off or did you get a blue screen? how are you cooling you CPU? easiest way to overclock is core voltage and ratio if you are new, and its usually the best way.

-Reset everything back default

-Don't use BCLK or offset since bclk overclocking will affect your ram frequencies and you want to overclock just your CPU from what I understand. And offset usually requires some extra tweaking from my experiences.

-Start out with your core voltage at 1.15, which is relatively low but your saying your CPU overheated at 1.2. MONITOR YOUR TEMPS.

- Start your ratio at 40. run some bench marks and monitor temps. if temps are fine and it didn't crash after about 10 mins of stress testing, raise it to 41 and repeat the process and so on.

- For example, if it crashes at 42, you would need to increase your core voltage to around 1.2 to get a greater core clock. But I wouldn't recommend that unless you figure out what your temps are and why it overheated. you don't want your CPU over 70C Under full load generally.
post #3 of 7
Thread Starter 
Thanks for the good advice. I'm using a Noctua NH-12S for cooling. My PC crashed during the 3DMark physics test, not sure what the temp was at the time. Since then I scaled it back to 4.4, but after running Prime95 for a few mins the temp got to high 90s so I stopped the test. I scaled it to 4.2, but even there Prime95 was taking the cpu into the 90s after a few mins.

I guess my question is, what should my target temp be under full load in Prime95 and how long should I run Prime95? You mentioned stress testing until it crashes, but also said the cpu shouldn't exceed 70C under full load?
post #4 of 7
Quote:
Originally Posted by Xerin7 View Post

Thanks for the good advice. I'm using a Noctua NH-12S for cooling. My PC crashed during the 3DMark physics test, not sure what the temp was at the time. Since then I scaled it back to 4.4, but after running Prime95 for a few mins the temp got to high 90s so I stopped the test. I scaled it to 4.2, but even there Prime95 was taking the cpu into the 90s after a few mins.

I guess my question is, what should my target temp be under full load in Prime95 and how long should I run Prime95? You mentioned stress testing until it crashes, but also said the cpu shouldn't exceed 70C under full load?

That is extremly high, run everything stock and check temps again and let me know. If you want to do any real overclocking, you should consider a closed water cooler.
post #5 of 7
If it crashed in physics test most likely needs more vcore
post #6 of 7
Thread Starter 
As a newb, I'm struggling with the risk/reward ratio of overclocking. I'm finding that I can run stable at much higher clocks for my regular pc use, but if I stress test my pc in Prime95 the temps get very high.

Is it better to run at the highest speed possible as long as your pc doesn't crash very often if at all? Or is it better to go with a more moderate overclock that will keep your cpu cooler and theoretically give it a longer life span? Does running your cpu at the highest clock possible really matter outside of benchmarks, especially as a 100% gamer where most of my fps is determined by gpu performance?

Even at 4.0 (1.168V), Prime95 brought my cpu up to 90C after 10 mins. The sweet spot for me may be 3.9 (1.136V), where I can keep the cpu at 72-75C even after 25 mins of Prime95.
post #7 of 7
Quote:
Originally Posted by Xerin7 View Post

As a newb, I'm struggling with the risk/reward ratio of overclocking. I'm finding that I can run stable at much higher clocks for my regular pc use, but if I stress test my pc in Prime95 the temps get very high.

Is it better to run at the highest speed possible as long as your pc doesn't crash very often if at all? Or is it better to go with a more moderate overclock that will keep your cpu cooler and theoretically give it a longer life span? Does running your cpu at the highest clock possible really matter outside of benchmarks, especially as a 100% gamer where most of my fps is determined by gpu performance?

Even at 4.0 (1.168V), Prime95 brought my cpu up to 90C after 10 mins. The sweet spot for me may be 3.9 (1.136V), where I can keep the cpu at 72-75C even after 25 mins of Prime95.

Although your temps shouldn't be that high, I would heavily suggest getting a new air cooler or AIO watercooler, or even considering setting up a custom CPU watercooling loop. The NH-U14S is a relatively small, silence optimised cooler and the LGA2011-3 CPUs when overclocked can run very hot and pull well, well over 200 watts on their own. I personally would not feel comfortable with anything over 85C for 24/7. I have my 5820k @ 4.4GHz 1.27V and it tops out completely at 75C on my custom loop (although my fans pretty much always run @ 25%).

Maybe try re-seating the cooler and then check what the temps are like? If you would like I can suggest some good CPU coolers.
    
CPUMotherboardGraphicsRAM
Intel Core i7 5820k MSI X99S SLI Plus 2x EVGA GeForce GTX 980 SC SLI Kingston HyperX Fury HX426C15FBK4/32 32GB (4x8G... 
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Phanteks Enthoo Primo White Mionix Naos 7000 Corsair MM300 Extended Size ASUS Xonar Essence STX II 
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Audioengine A5+ Audioengine S8 Sennheiser HD700 Rode NT-USB Microphone + PSA1 Boom Arm 
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CPUMotherboardGraphicsRAM
Intel Core i7 5820k MSI X99S SLI Plus 2x EVGA GeForce GTX 980 SC SLI Kingston HyperX Fury HX426C15FBK4/32 32GB (4x8G... 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 Pro 256GB Seagate Barracuda 3TB ST3000DM001 LG BH16NS40 16x Blu-Ray Writer EK Supremacy EVO Full Nickel, 2x EK-FC980 GTX A... 
CoolingCoolingCoolingCooling
Alphacool NexXxoS Monsta 280, Alphacool XT45 420 XSPC D5 Photon 170 pump/res combo 12x Phanteks PH-F140SP fans (7 white LED) An assortment of XSPC compression fittings & ro... 
OSMonitorKeyboardPower
Windows 8.1 Pro 64bit Acer Predator XB270HU Corsair Gaming Vengeance K70 RGB - Cherry MX Brown Corsair RM1000 
CaseMouseMouse PadAudio
Phanteks Enthoo Primo White Mionix Naos 7000 Corsair MM300 Extended Size ASUS Xonar Essence STX II 
AudioAudioAudioAudio
Audioengine A5+ Audioengine S8 Sennheiser HD700 Rode NT-USB Microphone + PSA1 Boom Arm 
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