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CPU overheating

DarkGoblin963
By DarkGoblin963
in Cooling
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So i have a pc with an i5 8400 which i bought recently, And i am having problems with it, My cpu was hitting 100c within minutes of launching and playing any games so i reapplied thermal paste and undervolted the cpu which got me 70-80c

in games like gta 5 and NFS payback on ultra settings after around an hour, which i think is ok? but im still getting 100c on stress tests like aida64 and prime95 though only when i check the "stress FPU" and "stress cache" if i only choose stress cpu temps hover around 85c. I really have no idea what the problem could be, It's really hot where i live so maybe that plays into it but i don't think that causes it to get that hot, Could it be a motherboard or processor error? Also i am using the stock cooler and idle temps are 38-45 degrees.

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The stock cooler is likely your whole problem, but out of curiosity what did you under volt your CPU to? My 8700K was fine at 1.150V @ 4.5GHz, I would imagine that a 8400 @ 4.0GHz could go much lower, maybe even 1.000V.

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Hot environment or bad case airflow I suppose? Intel's stock cooler suck, but not that bad on the 8400.

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: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside 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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2 minutes ago, Jurrunio said:

Hot environment or bad case airflow I suppose? Intel's stock cooler suck, but not that bad on the 8400.

Indeed, its only the 8700 i know that suffers from overheating on the included cooler

 

 

OP what is your ambient temps?

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3 hours ago, SALEEN961 said:

The stock cooler is likely your whole problem, but out of curiosity what did you under volt your CPU to? My 8700K was fine at 1.150V @ 4.5GHz, I would imagine that a 8400 @ 4.0GHz could go much lower, maybe even 1.000V.

I undervolted by -0.145v because with -0.150v my pc crashed.

3 hours ago, GoldenLag said:

Indeed, its only the 8700 i know that suffers from overheating on the included cooler

 

 

OP what is your ambient temps?

I don't know exactly but probably like 32c+ not sure might actually be higher. And also i'm planning gto get another cooler It's a very old one, The AMA Phantom it's like really old but where i live there's not many options really so i am wondering if it'll get the job done, I'm not sure if it would even fit on my b360 board, I just found a great deal about it please give me your opinions.

 

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17 hours ago, DarkGoblin963 said:

I undervolted by -0.145v because with -0.150v my pc crashed.

 

What does that mean in actual voltages? Just setting it to manual should have done it. Also, please don't use stress tests with stock cooler. Its not made for that.

 

17 hours ago, DarkGoblin963 said:

I don't know exactly but probably like 32c+ not sure might actually be higher.

 

Thats higher than what is considered normal (~25C) in any tests you see on coolers. Its still not so high that it should go that high on stock cooler. What case and airflow setup is like?

 

17 hours ago, DarkGoblin963 said:

And also i'm planning gto get another cooler It's a very old one, The AMA Phantom it's like really old but where i live there's not many options really so i am wondering if it'll get the job done, I'm not sure if it would even fit on my b360 board, I just found a great deal about it please give me your opinions.

That should be as good as budget 120mm coolers. It also should have mounting for LGA115x (specs read LGA1366 and LGA1156).

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On 8/22/2018 at 7:45 AM, DarkGoblin963 said:

The AMA Phantom it's like really old but where i live there's not many options really so i am wondering if it'll get the job done, I'm not sure if it would even fit on my b360 board, I just found a great deal about it please give me your opinions.

Yes, the AMA Phantom fits and should be plenty for cooling. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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2 hours ago, DarkGoblin963 said:

This is without undervolting so i guess it was a cooler problem afterall

The problem isn't necessarily the cooler just because a larger cooler performs better. Lowering the core voltage would still lower temps. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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