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CPU Fans are not spinning

Fevziye
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The pc boots fine. everything is fine. but the CPU fans are not spinning by themselves. if I move them manually they start spinning as they should be. so the fans are getting power. but other times. they don't. what do you guys think might be wrong with it?

i tried stress testing the cpu to see if they start spinning as the cpu temp gets higher. (went to 69 c highest on the stress test). still nothing.

 

on idle it stays 45-50 c

on load its 60-70 max

 

i5 2500k on stock clock. using some Noctua cooler (forgot name) with dual fans

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They arent receiving enough power to break static friction?

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 minute ago, Jurrunio said:

They arent receiving enough power to break static friction?

wdym

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What brand and model are the CPU fans? You mentioned Noctua but is that just the heatsink or is that the whole cooling combo? How long have you had the fans for?

 

It could well be a power deliver issue like @Jurrunio mentioned, could be an internal fan controller issue or perhaps the cable pins are lose. Have you had any physical changes to the system or fans lately, or have they been working just fine up until when this problem arose? 

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14 minutes ago, Fevziye said:

wdym

Do they spin fast after a manual push start?

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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4 minutes ago, Jurrunio said:

Do they spin fast after a manual push start?

yes, after i manually move the fans they start spinning fast. if they are not receiving power then they shouldn't, right?

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1 hour ago, Fevziye said:

yes, after i manually move the fans they start spinning fast. if they are not receiving power then they shouldn't, right?

Yes, it requires power to keep spinning but even more power to start up. What fans are you using and what header are they being powered off of? If they're plugged into the motherboard, tell us which headers and on what motherboard. 

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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21 minutes ago, WoodenMarker said:

Yes, it requires power to keep spinning but even more power to start up. What fans are you using and what header are they being powered off of? If they're plugged into the motherboard, tell us which headers and on what motherboard. 

Gigabyte Z68XP-UD4

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5 hours ago, Fevziye said:

Gigabyte Z68XP-UD4

Have you tried using other headers? What profile or control setup you are using?

^^^^ That's my post ^^^^
<-- This is me --- That's your scrollbar -->
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Maybe its meant to be man.  Its not a big deal, just give the fans a nudge and off they go LOL.  no but seriously this blows goat.  How can both fans behave like this hmmm. something smells fishy...

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15 hours ago, LoGiCalDrm said:

Have you tried using other headers? What profile or control setup you are using?

i don't understand what that means ;-;

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5 hours ago, Fevziye said:

i don't understand what that means ;-;

Have you tested that this only happens with these fans and on CPU fan header? And have you changed control options from BIOS?

^^^^ That's my post ^^^^
<-- This is me --- That's your scrollbar -->
vvvv Who's there? vvvv

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1 hour ago, LoGiCalDrm said:

Have you tested that this only happens with these fans and on CPU fan header? And have you changed control options from BIOS?

I will try to control options from bios and let you know.

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