Case & CPU fans keep running after computer is shut down.

sttubs · Nov 16, 2012

I'll be seeing my uncle on Thanksgiving & he told me that the case & CPU fans keep running after being powered down all the way up to the next time he turns it on. What might this be from, I want to be prepared since he lives quite a way from me.

trickson · Nov 16, 2012

Is he sure he is shutting it down or just putting it to sleep?

cadaveca · Nov 16, 2012

I've seen corrupted drivers, usually VGA, do the same as well.

trickson · Nov 16, 2012

Maybe when you get there you can give us the system spec's and a pic of the inside of the computer as well. The pic would just to see how dirty and dust filled it is. It could be so filthy inside it is shorting out.

silkstone · Nov 16, 2012

sttubs said:
I'll be seeing my uncle on Thanksgiving & he told me that the case & CPU fans keep running after being powered down all the way up to the next time he turns it on. What might this be from, I want to be prepared since he lives quite a way from me.

Is he pressing the power button on the case, not just the screen? I have to ask as i have met many tech un-savvy people who wouldn't know the difference.

natr0n · Nov 16, 2012

Haunted PC !!!

de.das.dude · Nov 16, 2012

i'd put my money on haunted PC as well. seeing as how halloween was a week ago.
you ask him if these symptoms started appearing around halloween.

jokes apart. i seriously doubt he is turning his PC off. since the fans are connected to the 12V rail, im sure there would be some other symptoms.
@trickson, sleeping shuts off fans as well. IMO it only keeps the RAM alive to have the stuff loaded on it from getting erased. that too with the 5V rail.

no idea about what cadaveca said. infact never seen or heard of something like this. i guess im still young,

sttubs · Nov 16, 2012

Thanks for the input. I'll follow up with a post when I find out what's going on.

Processor	AMD 8350
Motherboard	Asus M5A99FX PRO R2.0
Cooling	Xigmatek Dark Night Night Hawk Edition
Memory	4x4GB DDR3 1600 GSkill Ripjaws CL7
Video Card(s)	Gigabyte 980 Ti Xtreme Gaming OC Ed
Storage	Samsung 850 Evo 500gb + WD Black 5Tb
Display(s)	ASUS VG248QE 144Hz
Case	White Corsair 500r
Audio Device(s)	onboard
Power Supply	Corsair AX860i 860W
Software	Win 10 Pro 64bit

System Name	Ryzen TUF.
Processor	AMD Ryzen7 3700X
Motherboard	Asus TUF X570 Gaming Plus
Cooling	Noctua
Memory	Gskill RipJaws 3466MHz
Video Card(s)	Asus TUF 1650 Super Clocked.
Storage	CB 1T M.2 Drive.
Display(s)	73" Soney 4K.
Case	Antech LanAir Pro.
Audio Device(s)	Denon AVR-S750H
Power Supply	Corsair TX750
Mouse	Optical
Keyboard	K120 Logitech
Software	Windows 10 64 bit Home OEM

System Name	Ryzen TUF.
Processor	AMD Ryzen7 3700X
Motherboard	Asus TUF X570 Gaming Plus
Cooling	Noctua
Memory	Gskill RipJaws 3466MHz
Video Card(s)	Asus TUF 1650 Super Clocked.
Storage	CB 1T M.2 Drive.
Display(s)	73" Soney 4K.
Case	Antech LanAir Pro.
Audio Device(s)	Denon AVR-S750H
Power Supply	Corsair TX750
Mouse	Optical
Keyboard	K120 Logitech
Software	Windows 10 64 bit Home OEM

System Name	Gaming System / HTPC-Server
Processor	i7 8700K (@4.8 Ghz All-Core) / R7 5900X
Motherboard	Z370 Aorus Ultra Gaming / MSI B450 Mortar Max
Cooling	CM ML360 / CM ML240L
Memory	16Gb Hynix @3200 MHz / 16Gb Hynix @3000Mhz
Video Card(s)	Zotac 3080 / Colorful 1060
Storage	750G MX300 + 2x500G NVMe / 40Tb Reds + 1Tb WD Blue NVMe
Display(s)	LG 27GN800-B 27'' 2K 144Hz / Sony TV
Case	Xigmatek Aquarius Plus / Corsair Air 240
Audio Device(s)	On Board Realtek
Power Supply	Super Flower Leadex III Gold 750W / Andyson TX-700 Platinum
Mouse	Logitech G502 Hero / K400+
Keyboard	Wooting Two / K400+
Software	Windows 10 x64
Benchmark Scores	Cinebench R15 = 1542 3D Mark Timespy = 9758

System Name	natr0n-PC
Processor	Ryzen 5950x/5600x
Motherboard	B450 AORUS M
Cooling	EK AIO 360 - 6 fan action
Memory	Patriot - Viper Steel DDR4 (B-Die)(4x8GB)
Video Card(s)	EVGA 3070ti FTW
Storage	Various
Display(s)	PIXIO IPS 240Hz 1080P
Case	Thermaltake Level 20 VT
Audio Device(s)	LOXJIE D10 + Kinter Amp + 6 Bookshelf Speakers Sony+JVC+Sony
Power Supply	Super Flower Leadex III ARGB 80+ Gold 650W
Software	XP/7/8.1/10
Benchmark Scores	http://valid.x86.fr/79kuh6

Case & CPU fans keep running after computer is shut down.

sttubs

trickson

OH, I have such a headache

cadaveca

My name is Dave

trickson

OH, I have such a headache

silkstone

natr0n

de.das.dude

Pro Indian Modder

sttubs

System Name	Monke \| Work Thinkpad\| Old Monke
Processor	Ryzen 5600X \| Ryzen 5500U \| FX8320
Motherboard	ASRock B550 Extreme4 \| ? \| Asrock 990FX Extreme 4
Cooling	240mm Rad \| Not needed \| hyper 212 EVO
Memory	2x16GB DDR4 3600 Corsair RGB \| 16 GB DDR4 3600 \| 16GB DDR3 1600
Video Card(s)	Sapphire Pulse RX6700XT 12GB \| Vega 8 \| Sapphire Pulse RX580 8GB
Storage	Samsung 980 nvme (Primary) \| some samsung SSD
Display(s)	Dell 2723DS \| Some 14" 1080p 98%sRGB IPS \| Dell 2240L
Case	Ant Esports Tempered case \| Thinkpad \| Antec
Audio Device(s)	Logitech Z333 \| Jabra corpo stuff
Power Supply	Corsair RM750e \| not needed \| Corsair GS 600
Mouse	Logitech G400 \| nipple
Keyboard	Logitech G213 \| stock kb is awesome \| Logitech K230
VR HMD	;_;
Software	Windows 10 Professional x3
Benchmark Scores	There are no marks on my bench