Question Can't run 9900k @ stock clocks even with Corsair h115i

[drophdgaming]

I can play games fine but if I try to stream the cpu overheats and the computer restarts randomly. I underclocked the CPU to 4.6ghz @ 1.2v fixed and when I do that it works fine, I can stream all day with no issues. How do I run at 5GHz?

 

[rgd1101]

stock is 3.6 based. 5ghz is turbo boost
what the temp?
full system spec? make and model of the psu?

 

[drophdgaming]

When I look at core temp it shows the temps in upper 80's celsius

CPU
Intel Core i9-9900K
Motherboard
ASRock Z370 Extreme4
GPU
GIGABYTE RTX 2080 TI WindForce OC 11GB
RAM
PNY Anarchy X 16GB 3200MHz
Hard Drive
Samsung 970 EVO NVMe M.2 1TB
Hard Drive
Samsung 850 EVO SATA 256GB
Hard Drive
Seagate IronWolf NAS 4TB
Power Supply
Seasonic FOCUS Plus Series SSR-750FX
Cooling
Corsair Hydro H115i Pro
Case
NZXT S340VR Elite
Operating System
Windows 10
Monitor
Acer Predator X27
Monitor
ASUS VP28UQG
Keyboard
CORSAIR - K68
Mouse
Corsair Harpoon
Mousepad
Razer Goliathus Speed Cosmic
Audio
Razer Tiamat
Other
Arozzi Arena Gaming Desk - Pure Black
Other
OFM Gaming Chair

 

[drophdgaming]

??

 

[Diddly]

The PC shouldn't restart randomly, the CPU should just throttle down if there's overheating issues. Things to try:

1. I would recommend making sure you've got the latest BIOS
2. clear out the CMOS settings too
3. make sure you've got the drivers & software for the cooler. (don't update the firmware - unless you're very brave).
4. Install the latest intel drivers etc.
5. Try re-seating the CPU cooler + reapply thermal paste

 

[OllympianGamer]

The 9900k runs notoriously hot, you basically will need the best cooling solution on the market and I know the h115i isn't low end by any means. You might want to look into using the Grizzly liquid metal thermal compound as well.

 

[vMax]

You have a couple of issues. One the motherboard is just not good enough for the 9900K. You are running a Z370 motherboard and not one of the better ones at that. You need a solid Z90 motherboard like the Gigabyte Aorus Z390 Elite which has a very good VRM setup or something similar. Also I would double check you AIO in the H115 and make sure it is on properly but I think your issues are down to the weak Z370 board....The 9900K requires a very good power delivery...go Z390 and your problems should go away.

 

[1LiquidPC]

Were you attempting to run a 5Ghz "OC" profile from within the UEFI? I see you mentioned downclocking to 4.6Ghz. When attempting 5Ghz, assuming you mean all core OC, what is your voltage set at, llc settings, ect.? Multicore enhancement?

 

[Third-Eye]

I can play games fine but if I try to stream the cpu overheats and the computer restarts randomly. I underclocked the CPU to 4.6ghz @ 1.2v fixed and when I do that it works fine, I can stream all day with no issues. How do I run at 5GHz?

Does it do this when you haven't overclocked and leave it at stock settings?

 

[dstln]

Most modern encoding/streaming uses AVX2

https://siliconlottery.com/pages/statistics

Basically no 9900k chips can get to 5ghz running AVX2, and you'd have to run more voltage, not less.