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Helpful ReplyTips for OC'ing 7940x?

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Ripside
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2018/09/24 11:06:32 (permalink)
Haven't messed with overclocking in years... but I'm familiar with clock speeds and multipliers. Looking for a mild (safe) overclock on a 7940x on an X299 FTW K. Running a Corsair H80i V2 (single fan) cooler, CPU idles in the mid 20c's right now.
 
Not sure where to start. I grabbed the ELeetx util, but I've seen where a few people suggest not using it.
 
Where to start in CMOS?
post edited by Ripside - 2018/09/24 12:22:46
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Cool GTX
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Re: Tips for OC'ing 7940x? 2018/09/24 11:16:29 (permalink)
Moving to OC section of forums

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Cool GTX
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Re: Tips for OC'ing 7940x? 2018/09/24 11:17:43 (permalink) ☄ Helpfulby Ripside 2018/09/24 12:22:04
web search your: chipset, MB & CPU with something like "overclock guide"
 
Make sure you have an accurate way to monitor temps
 
Make an Image of your Boot drive, disconnect all other drives -- if your OC goes crazy bad, you would not be the first person to corrupt the boot drive 

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ThrashZone
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Re: Tips for OC'ing 7940x? 2018/09/24 12:09:57 (permalink) ☄ Helpfulby Ripside 2018/09/24 12:21:59

My first build,
Case 450D/ ASUS Sabertooth X99/ 5930k with EK mono block / Water loop EK 280p-GTX240 radiators with D5 pump res combo before rads and D5 top after / Trident-Z 3200C14 4x8gb/ EVGA 1000 P2/ EVGA 1080ti FTW3 with EK copper water block.
 
2nd build,
Case D450/ ASUS x299 Prime Deluxe/ i9-7900x delidded with EK mono block/ Trident-Z 3600C16 4x8gb/ Water loop EK-280p-GTX240 radiators with D5 pump-res combo before rads and D5 top after/ EVGA 1200 P2 / Titan Xp with EK water block.
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Ripside
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Re: Tips for OC'ing 7940x? 2018/09/24 12:19:12 (permalink)
Cool GTX
web search your: chipset, MB & CPU with something like "overclock guide"
 
Make sure you have an accurate way to monitor temps
 
Make an Image of your Boot drive, disconnect all other drives -- if your OC goes crazy bad, you would not be the first person to corrupt the boot drive 




 
I did - found nothing specific for this combo.
 
Cool GTX
web search your: chipset, MB & CPU with something like "overclock guide"
 
Make sure you have an accurate way to monitor temps 
 
Make an Image of your Boot drive, disconnect all other drives -- if your OC goes crazy bad, you would not be the first person to corrupt the boot drive 




Appreciate that advice - wasn't aware a boot drive could get corrupted...
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JacobB
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Re: Tips for OC'ing 7940x? 2018/09/24 12:21:04 (permalink) ☄ Helpfulby Ripside 2018/09/24 12:33:59
From personal experience, heat is going to be a huge issue. I'm not sure a single radiator AIO will sufficiently cool the CPU under extended periods of load, especially with an overclock. With these CPUs, AVX and AVX-512 will be extremely taxing and I typically set my offsets to -3 and -5 respectively.
 
When I started with an OC on my 7820X, I set the offset to the max Boost speed (4.3) on all cores and set voltage to 1.3. I then lowered the voltage bit by bit until it became unstable and put the voltage back up by a tiny bit. That was my mild overclock solution.
 
The Intel Turbo Boost 3 clock (4.5) was what I then moved up to for all cores for my streaming / gaming overclock and repeated the same process.
 
For the 7940X, I would say start with 4GHz - 4.2 even though your boost is 4.3 simply because the cooling solution you have may not be able to handle the amount of heat that may be output by the CPU.
 
Please keep in mind however, this is just my method and suggestions. Depending on the motherboard and your system specs, you may want to overclock in different ways and with different values.
 
Let us know how it goes! :)
 
-Jacob B.
post edited by EVGATech_JacobB - 2018/09/24 12:33:11
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Cool GTX
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Re: Tips for OC'ing 7940x? 2018/09/24 12:41:18 (permalink)
Sorry, I could have taken the time to be crystal clear -- you can refine your results -- sometimes all you find are close examples, they can still offer help

Use different combinations till you get useful results   

Simple search (remove quotes)  --->  "7940x & OC guide" 
Intel Core i9-7960X Review: Skylake-X At 16 Cores -

------------------    

Simple search (remove quotes) --->  "EVGA & X299 FTW K & OC guide" 

This is a Great X299 Dark guide, should be helpful in some ways 
OC Guide for EVGA X299 DARK motherboard

--------------------------------------  

Simple search (With quotes) --->   EVGA & "X299 FTW K" & OC guide|
EVGA Forums Post    https://forums.evga.com/FindPost/2771935 

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Ripside
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Re: Tips for OC'ing 7940x? 2018/09/24 12:45:45 (permalink)
Cool GTX
Sorry, I could have taken the time to be crystal clear -- you can refine your results -- sometimes all you find are close examples, they can still offer help

Use different combinations till you get useful results   

Simple search (remove quotes)  --->  "7940x & OC guide" 
Intel Core i9-7960X Review: Skylake-X At 16 Cores -

------------------    

Simple search (remove quotes) --->  "EVGA & X299 FTW K & OC guide" 

This is a Great X299 Dark guide, should be helpful in some ways 
OC Guide for EVGA X299 DARK motherboard

--------------------------------------  

Simple search (With quotes) --->   EVGA & "X299 FTW K" & OC guide|
EVGA Forums Post    https://forums.evga.com/FindPost/2771935



Oh, I did - I can google with the best of them - but only saw articles on 7960x, 7900x, 7920x, etc. Didn't know if those would be safe to use on a 7940x.
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Cool GTX
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Re: Tips for OC'ing 7940x? 2018/09/24 12:47:41 (permalink)
Sometimes all you find are close examples, they can still offer help
 
I was very quick with my searches
 
You have some homework to do for sure
 
GL

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bcavnaugh
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Re: Tips for OC'ing 7940x? 2018/09/24 12:51:04 (permalink) ☄ Helpfulby Ripside 2018/09/24 12:56:15
Here are my OC Bios setting for that CPU Link Start at the Bottom of the Page.

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Tech_JoseC
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Re: Tips for OC'ing 7940x? 2018/09/27 14:45:01 (permalink) ☄ Helpfulby Ripside 2018/09/27 15:21:40
Since you have one of our X299 motherboards, I would highly suggest that you go visit this page https://xdevs.com/guide/e299ocg/

Gives you an extensive guide on overclocking our boards, you will definitely learn a thing or two. It is definitely the Bible of EVGA X299 Overclocking :)
 
Good Luck!
 
Edit: My apologies, I didn't notice that CoolGTX had already linked this page.
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