C7H fans stop at high load

**IIINikolaiIII** · 08-19-2019 05:42 AM

Hi! I'm having a problem with my C7H where all of my fans that are connected to the mobo stop spinning when the pc gets a higher load. This is causing a thermal shutdown. BIOS version 2501. Nothing in my pc has changed in a few months and now this started to happen. Thanks for any help.

**gupsterg** · 08-19-2019 06:38 AM

I have only experienced this once on UEFI 2501/2406 when PC had been in use for ~3 days back to back.

Set fan profile in UEFI, do not use OS SW to adjust fans, I would make sure you do not use things like Ai Suite, Aura. In the past I have seen owners have issue even with other SW like iCue, etc, so anything which controls RGB, etc should also just be uninstalled.

Do not use multiple monitoring SW, I have had no issues with CPU-Z & HWINFO. I have noted if Ryzen Master is open and another SW like say HWINFO, I can have fans issues.

So far on the later UEFIs 2602 onwards I have not noted a fan issue yet.

**IIINikolaiIII** · 08-19-2019 07:18 AM

Originally Posted by gupsterg

I have only experienced this once on UEFI 2501/2406 when PC had been in use for ~3 days back to back.

Set fan profile in UEFI, do not use OS SW to adjust fans, I would make sure you do not use things like Ai Suite, Aura. In the past I have seen owners have issue even with other SW like iCue, etc, so anything which controls RGB, etc should also just be uninstalled.

Do not use multiple monitoring SW, I have had no issues with CPU-Z & HWINFO. I have noted if Ryzen Master is open and another SW like say HWINFO, I can have fans issues.

So far on the later UEFIs 2602 onwards I have not noted a fan issue yet.

I don't have any RGB or fan control software installed and never had any. Maybe i need a newer BIOS.
EDIT: Does the new AGESA work fine with zen+ cpus? or do i need to have zen2?

**gupsterg** · 08-19-2019 07:41 AM

It will work with Zen/Zen+.

Besides RGB or fan control SW, what monitoring SW do you use? old versions of AIDA64 can cause issues, HWMonitor I wouldn't use on Ryzen at all TBH.

**xeizo** · 08-19-2019 07:54 AM

I noticed I had fans stopping, or even vanished from monitoring, when I hadn't set fan curves in bios.

It didn't affect stability much as my radiator fans/pump is controlled from the cooler itself with Corsair H150i Pro but it was annoying.

When I set all fan curves manual in bios, and removed all Asus software in Windows, fans have been running and monitored just right in HWINFO64 all the time since.

**gupsterg** · 08-19-2019 08:14 AM

I always set fan profile via UEFI, do not use OS SW. This ZIP has WMV of the incident with lost PWM, again rig had been in use since midday 21st. I don't know when over the course of overnight run fan headers lost PWM. I forgot to set HWINFO to log that night,.

I'm glad the X570 ASUS mobo have moved to Nuvoton Super IO chip, the super IO chip ITE8655E seems to be prone to issues, I really didn't encounter as many issues as others though. Yes ASUS brought out "WMI implementation" to resolve it, but any application using Super IO chip that does not use ASUS WMI can send it wacko.

**IIINikolaiIII** · 08-19-2019 08:33 AM

Originally Posted by gupsterg

It will work with Zen/Zen+.

Besides RGB or fan control SW, what monitoring SW do you use? old versions of AIDA64 can cause issues, HWMonitor I wouldn't use on Ryzen at all TBH.

I use HWinfo64

**IIINikolaiIII** · 08-19-2019 08:38 AM

Originally Posted by xeizo

I noticed I had fans stopping, or even vanished from monitoring, when I hadn't set fan curves in bios.

It didn't affect stability much as my radiator fans/pump is controlled from the cooler itself with Corsair H150i Pro but it was annoying.

When I set all fan curves manual in bios, and removed all Asus software in Windows, fans have been running and monitored just right in HWINFO64 all the time since.

My AIO controls the fans and pump itself too, but still both stop working eventually. System fans are set from BIOS aswell. HWinfo shows 0-29000 rpm when every fan stops. They slowly go down in speed and stop eventually.

**IIINikolaiIII** · 08-19-2019 08:43 AM

Originally Posted by gupsterg

I always set fan profile via UEFI, do not use OS SW. This ZIP has WMV of the incident with lost PWM, again rig had been in use since midday 21st. I don't know when over the course of overnight run fan headers lost PWM. I forgot to set HWINFO to log that night,.

I'm glad the X570 ASUS mobo have moved to Nuvoton Super IO chip, the super IO chip ITE8655E seems to be prone to issues, I really didn't encounter as many issues as others though. Yes ASUS brought out "WMI implementation" to resolve it, but any application using Super IO chip that does not use ASUS WMI can send it wacko.

I got fans set from BIOS too. I tried that fan tuning from it aswell and they just stopped during that too. Super weird.

**igralec84** · 08-19-2019 03:59 PM

I had a weird fan speed thing with 2501, had the pump and fan curves set in BIOS, when i used Auto OC in Ryzen Master + HWinfo, on load the pump ramped up but the fans slowed down to 400rpm. Was doing 3Dmark benchmarks and luckily aborted before the CPU test, as it would surely turn the fans off on full load.

IIINikolaiIII PC Specs
Motherboard	Asus ROG Crosshair VII Hero
Processor	Ryzen 5 3600
Memory (part number)	16GB Crucial Ballistix 3600 CL16
Graphics Card #1	Asus TUF RTX 3070
Monitor	Acer Predator 27" XB273UGS
CPU Cooler	Noctua NH-D15s
Case	Fractal Design Define R5
Power Supply	Superflower 850W Leadex Gold
Keyboard	ROG Strix Flare
Mouse	Glorious Model D
Headset	Sennheiser HD599
OS	Windows 10 Pro 20H2

gupsterg PC Specs
Motherboard	Asus Maximus VII Ranger
Processor	i5 4690K
Memory (part number)	HyperX Savage 2400MHz 16GB
Graphics Card #1	Sapphire R9 Fury X (1145/545 Custom ROM)
Monitor	Asus MG279Q
Storage #1	Samsung 840 Evo 250GB
Storage #2	HGST 2TB
CPU Cooler	ThermalRight Archon SB-E X2
Case	Silverstone Temjin 06
Power Supply	Cooler Master V850
Headset/Speakers	HyperX Cloud
OS	Win 7 Pro x64 / Win 10 Pro x64

IIINikolaiIII PC Specs
Motherboard	Asus ROG Crosshair VII Hero
Processor	Ryzen 5 3600
Memory (part number)	16GB Crucial Ballistix 3600 CL16
Graphics Card #1	Asus TUF RTX 3070
Monitor	Acer Predator 27" XB273UGS
CPU Cooler	Noctua NH-D15s
Case	Fractal Design Define R5
Power Supply	Superflower 850W Leadex Gold
Keyboard	ROG Strix Flare
Mouse	Glorious Model D
Headset	Sennheiser HD599
OS	Windows 10 Pro 20H2

gupsterg PC Specs
Motherboard	Asus Maximus VII Ranger
Processor	i5 4690K
Memory (part number)	HyperX Savage 2400MHz 16GB
Graphics Card #1	Sapphire R9 Fury X (1145/545 Custom ROM)
Monitor	Asus MG279Q
Storage #1	Samsung 840 Evo 250GB
Storage #2	HGST 2TB
CPU Cooler	ThermalRight Archon SB-E X2
Case	Silverstone Temjin 06
Power Supply	Cooler Master V850
Headset/Speakers	HyperX Cloud
OS	Win 7 Pro x64 / Win 10 Pro x64

xeizo PC Specs
Laptop (Model)	HP i7-7500U 16GB 256GB NVMe
Motherboard	Asus Crosshair VII Hero
Processor	R9 5900X
Memory (part number)	32GB G.Skill Trident Z RGB 3800MHz
Graphics Card #1	EVGA RTX3070 FTW3 ULTRA
Sound Card	Motu M2
Monitor	AOC 1440p 27" S-PLS
Storage #1	1TB Samsung 970 Plus NVMe
Storage #2	plenty
CPU Cooler	Noctua NH-D15 Chromax.black
Case	NZXT H700
Power Supply	Corsair RM850x
Keyboard	Logitech G710+ MX Brown (50$ on sale)
Mouse	Steelseries Sensei RAW
Headset	Sennheiser HD600
Mouse Pad	Steelseries, hard
Headset/Speakers	Swissonic ASM5 active studio monitors (thomann.de)
OS	Windows10 Pro
Network Router	Asus RT-N66U

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igralec84 PC Specs
Motherboard	ASUS ROG Crosshair VII Hero
Processor	Ryzen 7 3700X
Memory (part number)	2x F4-3200C14-8GVK
Graphics Card #1	RTX 2080 FE + EK Waterblock
Monitor	HP Omen 32
Storage #1	WD Blue 250gb M.2
Storage #2	Kingston SSD 128GB
CPU Cooler	EK-KIT X360
Case	Thermaltake Core P3
Power Supply	EVGA SuperNOVA 1300 G2
Keyboard	Razer Ornata Chroma
Mouse	ASUS ROG Pugio
Headset/Speakers	Logitech Z333
OS	Win 10 Pro
Accessory #1	3x Noctua NF-F12
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