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Cannot get stable 4.8ghz on an 8700k

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post #1 of 24 (permalink) Old 12-01-2019, 12:47 PM - Thread Starter
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Cannot get stable 4.8ghz on an 8700k

I am having troubles getting a stable overclock with my 8700k @ 4.8ghz.

My components consist of.

-i7 8700k
-Asus Prime Z370-P
Thermaltake 600w Smart Series PSU
16gb DDR4 Team Group memory 2666
MSI 1080ti
Noctua NH-U12S 120mm fan cooler.

This is a prebuilt NewEgg system and I added in the 1080ti and Noctua cooler.

I have followed some overclocking guides and I am getting intermittent crash to blue screen when gaming. Usually it happens 30-60 mins of gaming. If I remove the OC, I never get crashes.

While gaming, max temps I am seeing is 70* C

I have tried 4.8 @ 1.29 to 1.31v with no other changes in the BIOS. LLC is set to 6.

I notice in Prime95 during testing(blend test). When it ramps up power, I am seeing a 135-140w load and I see the highest temp of no more than 85*C. When it ramps up to this power Core voltage drops to 1.248V.(this is my concern of what my issue may be?) I am monitoring temps and watts with Core Temp and Voltage with CPU-Z.

When the test is running and power load is at 105-110watts core voltage is 1.29v. and temps are no more than 70*C

I can run the test for an hour (most I have ran so far) and it stays stable.

If I run lower than 1.31 volts it will crash after about 30mins of testing.

I have been reading my MOBO is very poor for overclocking. My concern is the voltage drop under higher load. Is this a sign of my PSU not being able to handle this? If it is a PSU issue, which PSU would be a good upgrade? Or is it a combo of my MOBO and PSU causing this voltage drop or is it normal?

***EDIT Sorry, I think I put this in the wrong section and it should be in the Intel CPU section.

Last edited by Juiced46; 12-01-2019 at 12:50 PM.
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post #2 of 24 (permalink) Old 12-01-2019, 01:56 PM
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What exact model is the PSU TT has a number of seriers name SMART

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post #3 of 24 (permalink) Old 12-01-2019, 02:02 PM
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You likely need more voltage...


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post #4 of 24 (permalink) Old 12-01-2019, 03:30 PM - Thread Starter
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Quote: Originally Posted by shilka View Post
What exact model is the PSU TT has a number of seriers name SMART
The Model # is TTP-0600P-W

Quote: Originally Posted by Duality92 View Post
You likely need more voltage...
I was able to get 2 hours on a Blend test stable @ 1.310v @ 4.8ghz right after I made the post and shut it down.

Ran a race session in iRacing in VR and no crash. Earlier today it crashed about 30 mins in when voltage was at 1.305v.
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post #5 of 24 (permalink) Old 12-01-2019, 03:34 PM
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Cant find any reviews on it but looking at the specs and the price and given the track record of cheap Thermaltake units i am going to say replace the PSU

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post #6 of 24 (permalink) Old 12-01-2019, 03:52 PM - Thread Starter
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Quote: Originally Posted by shilka View Post
Cant find any reviews on it but looking at the specs and the price and given the track record of cheap Thermaltake units i am going to say replace the PSU
Thanks for the help. That is what I was thinking. My next question is, I really do not know what to get for a PSU. There are tons of options. What would you recommend for this setup for a PSU?
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post #7 of 24 (permalink) Old 12-02-2019, 12:56 AM
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Quote: Originally Posted by Juiced46 View Post
Thanks for the help. That is what I was thinking. My next question is, I really do not know what to get for a PSU. There are tons of options. What would you recommend for this setup for a PSU?
Depends on where you are from where you want to order from and how much you can spend

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Ryzen 3700x
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Asrock x570 Taichi
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RAM
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Hard Drive
Corsair Force MP510 1,92 TB
Hard Drive
Seagate IronWolf Pro ST14000NE0008
Hard Drive
Seagate Ironwolf ST12000VN0007
Hard Drive
Seagate IronWolf Pro ST12000NE0007
Hard Drive
WD Ultrastar DC HC530 14 TB
Hard Drive
Seagate IronWolf Pro ST16000NE000
Power Supply
Seasonic Prime Ultra Titanium 750 watt
Cooling
Noctua NH-U12S Chromax
Case
Phanteks Luxe 2
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Asus PG279Q
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Kingston HyperX DDR4 Savage 3000 MHz
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post #8 of 24 (permalink) Old 12-02-2019, 04:55 AM - Thread Starter
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Quote: Originally Posted by shilka View Post
Depends on where you are from where you want to order from and how much you can spend
Im from the US and want to keep it under $200
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post #9 of 24 (permalink) Old 12-02-2019, 05:31 AM
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Quote: Originally Posted by Juiced46 View Post
Im from the US and want to keep it under $200
https://www.newegg.com/fractal-desig...-023-_-Product

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Seagate IronWolf Pro ST14000NE0008
Hard Drive
Seagate Ironwolf ST12000VN0007
Hard Drive
Seagate IronWolf Pro ST12000NE0007
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WD Ultrastar DC HC530 14 TB
Hard Drive
Seagate IronWolf Pro ST16000NE000
Power Supply
Seasonic Prime Ultra Titanium 750 watt
Cooling
Noctua NH-U12S Chromax
Case
Phanteks Luxe 2
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Asus PG279Q
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2x Dali Opticon 2
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CPU
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Samsung 860 Evo
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Noctua NH-D15S
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post #10 of 24 (permalink) Old 12-02-2019, 05:57 AM
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Quote: Originally Posted by Duality92 View Post
You likely need more voltage...

^ Agreed. More CPU voltage.

No doubt Newegg sent you a TT psu that has been in stock for awhile and those units were never a great choice.
Get a new PSU but that won't fix your OC problem.
Seasonic,EVGA or Corsair RM best bang for the buck is around $120 right now
https://www.newegg.com/seasonic-prim...82E16817151205
https://www.newegg.com/corsair-rmx-s...82E16817139233
Seasonic made units
https://www.newegg.com/phanteks-revo...82E16817987006
https://www.newegg.com/fractal-desig...82E16817580023

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