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x570 Ace Meg Chipset Fan not running

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Posted · Original PosterOP

Hi guys after building my PC the mobo chipset fan is not running all. I checked the connection of the chipset and the pins and they all look good. I even unplugged it and re-plugged it back to the mobo, did not resolve the issue. However, when I cut the power from the power supply, then power up my PC the chipset fan will start spinning for the first few seconds and will boot as expected... then will stop completely. When I go to bios setting it does not detect a connection to the chipset fan. I have the latest mobo bios update and I am out of ideas. 

FYI this is my PC I ever build any advice will be greatly appreciated. 

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2 minutes ago, darky55 said:

Hi guys after building my PC the mobo chipset fan is not running all. I checked the connection of the chipset and the pins and they all look good.

It's only going to turn on when the chipset heats up during use, and that's only really going to happen with PCI-e 4.0 SSDs.

I edit my posts a lot, Twitter is @LordStreetguru just don't ask PC questions there mostly...



What is your budget/country for your new PC?


what monitor resolution/refresh rate?


What games or other software do you need to run?



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it simply didnt get hot enough to make the fan necessary. It should spin when you push a lot of data through the chipst, say benchmark drives on the chipset

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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On 11/2/2019 at 9:08 PM, darky55 said:

Hate to be spamming guys.. But i updated BIOS and there seems to be no solution. Is that expected ??

I was having the same problem, you can turn it on in bios by changing the fan speed


Go to fan settings, chipset and on the left hand side where it says select mode, choose manual. Then define your own fan curve by moving the blue dots

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