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ArmanM

My i9-9900k gets very hot under all core loads, even at 4.5Ghz boost clock

Time for new paste (preferably more than what Corsair put on the base plate) application then.

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Posted · Original PosterOP

I recently built a new PC with an i9-9900k, and a Corsair H115i Pro 280mm AIO. My workloads often consist of all core loads (3d rendering, and other multithreaded applications). When rendering, my temps go into the 95+C range, which is obviously too hot. I disabled multicore enhancement, and even lowered my max Core Frequency to 4.50Ghz in Intel Extreme Tuning Utility. I understand lowering to 4.5Ghz defeats the purpose of getting a 9900k, but I just wanted to see what temps I would get. Sure enough, even at 4.5Ghz my large workloads get into the high 90s, and begin to thermal throttle. Here are a few screenshots:

 

image.png.e802fcd00665b6e805c4dd34f7f3856e.pngimage.png.a0a80b644fbeec42073a40d9c7407a3a.png

 

Even at this low voltage, and low boost clock, I still thermal throttle. Is this normal for my configuration? I'm not sure if I feel comfortable leaving my PC on over night at these temps. I'm pretty sure my cooler is seated properly, and the thermal paste that came pre-applied looked fine at the time of installation. 

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re-mount your cooler as a first step whenever you get temp readings like this


disregard women, fold proteins.

 

systems:

Spoiler

Main (in rebuild - specs when finished) - Zenith.
R9 3900x 4.25GHz All-Core // X570 Aorus Ultra // 32GB 3200MHz // eVGA 3090FTW 2080Ti Lightning Z

 

Folding Station - HAL@HOME. (Temporarily out of use)

i7-4790k 4.8GHz // Z97X-UD5H // 32GB 2133MHz DomPlats // 2080Ti Lightning Z 1070Ti FTW2 (on test)

 

TV / LAN machine - Demeter.

R5 3600 4.25GHz All-Core // B450i Aorus Pro Wifi // 16GB 3200MHz // Vega64 Silver (Air)

 

Running Parts Bin - Scrappy.

i5-4690k 4.8GHz // Z97 PRO GAMER // 16GB 2133MHz // R9 295x2(240 rad mod)

 

Laptop 1 - Valkyrie.

i7-8750H // Asus FX705GM // 32GB 2400MHz // 1060 6GB

 

Spoiler

 

Partner's Bastard Box - Sundae.

i5-4460 // Gigabyte H97N-WiFi // 16GB 1600MHz // 1080Ti FE

 

 

 

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Posted · Original PosterOP
1 minute ago, starcoaster said:

re-mount your cooler as a first step whenever you get temp readings like this

Will I have to clean off thermal paste, and then reapply it? Or is it fine to just remount without reapplying paste.

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always clean off the thermal paste and apply fresh


disregard women, fold proteins.

 

systems:

Spoiler

Main (in rebuild - specs when finished) - Zenith.
R9 3900x 4.25GHz All-Core // X570 Aorus Ultra // 32GB 3200MHz // eVGA 3090FTW 2080Ti Lightning Z

 

Folding Station - HAL@HOME. (Temporarily out of use)

i7-4790k 4.8GHz // Z97X-UD5H // 32GB 2133MHz DomPlats // 2080Ti Lightning Z 1070Ti FTW2 (on test)

 

TV / LAN machine - Demeter.

R5 3600 4.25GHz All-Core // B450i Aorus Pro Wifi // 16GB 3200MHz // Vega64 Silver (Air)

 

Running Parts Bin - Scrappy.

i5-4690k 4.8GHz // Z97 PRO GAMER // 16GB 2133MHz // R9 295x2(240 rad mod)

 

Laptop 1 - Valkyrie.

i7-8750H // Asus FX705GM // 32GB 2400MHz // 1060 6GB

 

Spoiler

 

Partner's Bastard Box - Sundae.

i5-4460 // Gigabyte H97N-WiFi // 16GB 1600MHz // 1080Ti FE

 

 

 

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If you still get an issue it could be possible your AIO isn't working.


My Rig: CPU: i9-9900k (5Ghz), Ram: 32gigs 3600mhz DDR4, MOBO: Gigabyte Aorus z390 Ultra, HDD: Samsung 970 Evo 500gig, Samsung 850 evo 250 gig, 2 TB Baracuda 7200 rpm,6tb WD Black 7200rpm, 4TB NAS, GPU: 1080Ti Fe, ek water block cpu and gpu custom loop.

 

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Posted · Original PosterOP
2 minutes ago, Livinloud said:

If you still get an issue it could be possible your AIO isn't working.

Is it less likely to be an issue with the CPU itself? My idle temps are normal, and in gaming loads my temps seem reasonable (low 70s at most in GTA V maxed out).

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At what usage when playing gta v? Mine is around 54c..(I have a 9900k as well. But a custom waterloop with 360mm rad space total though.) Thinking of possibly upgrading my 120 to a 360. :)


My Rig: CPU: i9-9900k (5Ghz), Ram: 32gigs 3600mhz DDR4, MOBO: Gigabyte Aorus z390 Ultra, HDD: Samsung 970 Evo 500gig, Samsung 850 evo 250 gig, 2 TB Baracuda 7200 rpm,6tb WD Black 7200rpm, 4TB NAS, GPU: 1080Ti Fe, ek water block cpu and gpu custom loop.

 

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Posted · Original PosterOP
2 minutes ago, Livinloud said:

At what usage when playing gta v? Mine is around 54c..(I have a 9900k as well. But a custom waterloop with 360mm rad space total though.) Thinking of possibly upgrading my 120 to a 360. :)

I'll have to get back to you tomorrow with that info. When I played GTAV my boost clock was at 4.7GHz in intel tuning util. It definitely seems like my temps in GTA are higher than normal. I still doubt that its a cooler seating issue though because I had a friend help me install it, and he has a lot of PC building experience.

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It's simply a hot chip. Mine can get upto 120w tdp, which means a massive amount of heat.

I'd say a 360 rad is a minimum.


-アパゾ

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VID is not an actual voltage ffs, you need to check Vcore or CPU core voltage reading


CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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Posted · Original PosterOP
5 minutes ago, Jurrunio said:

VID is not an actual voltage ffs, you need to check Vcore or CPU core voltage reading

Sorry. CPU-Z shows 1.248V with the boost clock at 4.5Ghz while under a heavy load (95-100% utilization). It hits around 93C then throttles

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Posted · Original PosterOP
14 minutes ago, APasz said:

It's simply a hot chip. Mine can get upto 120w tdp, which means a massive amount of heat.

I'd say a 360 rad is a minimum.

I get that it's a hot chip, but my performance seems significantly worse than what others have reported on the same hardware.

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Posted · Best Answer

Time for new paste (preferably more than what Corsair put on the base plate) application then.


CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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1 hour ago, ArmanM said:

Will I have to clean off thermal paste, and then reapply it? Or is it fine to just remount without reapplying paste.

Yes. Always clean off the thermal paste and apply new paste when removing a cooler. If you don't, you'll trap air bubbles in the paste which will act like an insulator and greatly reduce cooling performance.

 

I personally use Noctua NT-H1 (https://amzn.to/2LyZwAt) It's non-electrically conductive and performs great.


Specs: CPU - Intel i7 8700K @ 5GHz | GPU - Gigabyte GTX 970 G1 Gaming | Motherboard - ASUS Strix Z370-G WIFI AC | RAM - XPG Gammix DDR4-3000MHz 32GB (2x16GB) | Main Drive - Samsung 850 Evo 500GB M.2 | Other Drives - 7TB/3 Drives | CPU Cooler - Corsair H100i Pro | Case - Fractal Design Define C Mini TG | Power Supply - EVGA G3 850W

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1 hour ago, APasz said:

It's simply a hot chip. Mine can get upto 120w tdp, which means a massive amount of heat.

I'd say a 360 rad is a minimum.

My i5 8600k at 5GHz is using just over 100W when at full load, and I can keep it under 80°C all the time with air cooler. 

360mm rad for i9 9900k being minimum is just madness. 

 

I suspect that he didn't mount is properly (it happens even to experienced builders), or it could be bad TIM between cpu and cooler. If CPU cooler wasn't working, temps wouldn't stop at 95°C, but it would go to 100°C and crash very soon after stress test was started. 


Intel i7 9700KF 5.0GHz | EVGA Z370 Micro ATX | Dark Rock 3 | ADATA XPG Z1 3000MHz 32GB | RM650x | GTX 1080 Ti EVGA SC2 | Thermaltake Core V21

Samsung EVO 960 M.2 250GB | Samsung EVO 850 250GB | HyperX Fury 480GB | 3x Be Quiet! Silent Wings 140mm fans

WD My Cloud 4TB

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Also ambient temp matters as well too. Normally my room is 21c but when it started getting hot outside it would become 30c and when I stress test at 30c ambient I hit 90+ but at 21c I hit high 70s- low 80's. So depending on how hot your room is that is a factor as well. Also are you using your AIO as a intake or exhaust? I recommend intake over exhaust.


My Rig: CPU: i9-9900k (5Ghz), Ram: 32gigs 3600mhz DDR4, MOBO: Gigabyte Aorus z390 Ultra, HDD: Samsung 970 Evo 500gig, Samsung 850 evo 250 gig, 2 TB Baracuda 7200 rpm,6tb WD Black 7200rpm, 4TB NAS, GPU: 1080Ti Fe, ek water block cpu and gpu custom loop.

 

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Even if you got one of the hottest running chips, that cooler should be doing more work than that.  Would certainly remount, clean off old paste, reapply but have to wonder if that pump is working the way it is supposed to.  


El Zoido: 9900k / Hydro X / z390 Aorus master / 32 gb Corsair vengeance 3000mHz LPX / RTX 2080 ti / Fractal Define R6

 

The Box: 3900x / DR4 / b450 Asrock ITX / 32 gb Corsair vengeance 3000mHz LPX / RTX 2080 ti / Meshify mini w/ Noctua 140 Blacks

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Posted · Original PosterOP

I took off the heatsink and the thermal paste that came with the AIO was practically all dried up. It's strange because I built this rig just a few weeks ago. Anyway, after cleaning and reapplying thermal paste everything seems normal now.

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