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VRM overheating?

HunterAP
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Go to solution Solved by HunterAP,

So some development happened:

  • Turns out the VRM's were overheating because the "auto" settings for some parts of the CPU voltage controls were overvolting those parts (note that this "auto" setting is the default option and apparently isn't good at actually doing what the name implies). I forcibly lowered them to what the "default" speeds were and the issues are gone.
  • I managed to raise the OC to 4.6GHz and still hit ~62c on the CPU under an extended Aida64 CPU Stress Test.

TL;DR thanks MSI for bad auto settings in the mobo.

Posted

I have a 6700K on an MSI Z170-A Pro motherboard, and Noctua NH-D15 with both of the included NF-A15 140mm fans mounted onto it, and using Noctua NT-H1 thermal paste.

I did some tests with AIDA64 and saw that my mobo's VRM's overheat during those tests, where the VRM temps are shown to be high but the CPU temps are only around the low 70's.

 

What's the best way for me to cool the VRM's? The way my case fans are set up, I don't have any room to have a fan angled directly onto the VRM's. What can I do to cool the VRM's properly?

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Posted

1. Dont cheap out on your motherboard with a flagship CPU next time.

 

2. Use a downdraft CPU air cooler. The best is the Noctua NH-C14S, followed by the Cryorig C1, Be quiet Shadow Rock TF2 and Noctua NH-C14

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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https://linustechtips.com/topic/929827-vrm-overheating/#findComment-11369138
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  • 3 weeks later...
Posted
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  • Solution

So some development happened:

  • Turns out the VRM's were overheating because the "auto" settings for some parts of the CPU voltage controls were overvolting those parts (note that this "auto" setting is the default option and apparently isn't good at actually doing what the name implies). I forcibly lowered them to what the "default" speeds were and the issues are gone.
  • I managed to raise the OC to 4.6GHz and still hit ~62c on the CPU under an extended Aida64 CPU Stress Test.

TL;DR thanks MSI for bad auto settings in the mobo.

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https://linustechtips.com/topic/929827-vrm-overheating/#findComment-11425400
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