How many fans can i have?

Roderika · Jul 30, 2020

Hello guys, how many fans can i install on my pc? i have gigabyte b450m ds3h, i think it is only 1 am i right?
my case is an phanteks p350x

thanks

dirtyferret · Jul 30, 2020

you have one header for the CPU fan and one for System fan although you can install whatever fans you like in each header and make adjustments in the BIOS to fan curves and temp control. That said you can buy a fan splinter or hub and install how ever many fans you need.

sneekypeet · Jul 30, 2020

Amount of fans as-is matters as to the draw of each fan and what your fan header is capable of. Typical guideline is 3 fans to a header, but again, that can vary by fan power requirements.

As suggested, buy a hub that gets power over SATA connection. They use the PWM signal from the CPU fan header, and as said, you can add as many as the hub or hubs will allow.

FreedomEclipse · Jul 30, 2020

you can install 5 fans with a fan hub or splitter.

dirtyferret · Jul 30, 2020

FreedomEclipse said:
you can install 5 fans with a fan hub or splitter.

Install the fans to the PSU molex connector and in theory you can daisy chain over two dozen of them

Chrispy_ · Jul 30, 2020

As others have said, buy a PWM hub (powered by a SATA power cable) and run as many as you want.

The one motherboard header can control all the fans running off the hub and there's no risk of overloading that SYS FAN header on the board.

I use 7 PWM fans off a NZXT-branded PWM hub, because that's the best option for my highly-restrictive soundproofed case. If you have a more typical case two intakes and two exhausts is definitely the sweet spot.

Assimilator · Jul 30, 2020

As many as you have power for. As others have mentioned a fan hub is an option, but you have to be careful because some don't support changing voltages for 3-pin fans (i.e. you can't control 3-pin fan speeds, they will always run at max) . And of course, if you don't use the exact same model fan with the exact same speeds, things will be weird.

System Name	RAMbo
Processor	Ryzen 3600
Motherboard	b450m ds3h
Cooling	Hyper 212 Turbo
Memory	16GB 3200mhz
Video Card(s)	rx6600xt
Storage	kingstone renegade 1TB , Crucial BX 500GB
Display(s)	viewsonic xg2401
Case	phanteks p350x
Power Supply	Sentey GSP 650W GOLD
Mouse	HyperX Raid
Keyboard	HyperX Alloy

Processor	faster at instructions than yours
Motherboard	more nurturing than yours
Cooling	frostier than yours
Memory	superior scheduling & haphazardly entry than yours
Video Card(s)	better rasterization than yours
Storage	more ample than yours
Display(s)	increased pixels than yours
Case	fancier than yours
Audio Device(s)	further audible than yours
Power Supply	additional amps x volts than yours
Mouse	without as much gnawing as yours
Keyboard	less clicky than yours
VR HMD	not as odd looking as yours
Software	extra mushier than yours
Benchmark Scores	up yours

System Name	EVA-01
Processor	Intel i7 13700K
Motherboard	Asus ROG Maximus Z690 HERO EVA Edition
Cooling	ASUS ROG Ryujin III 360 with Noctua Industrial Fans
Memory	PAtriot Viper Elite RGB 96GB @ 6000MHz.
Video Card(s)	Asus ROG Strix GeForce RTX 3090 24GB OC EVA Edition
Storage	Addlink S95 M.2 PCIe GEN 4x4 2TB
Display(s)	Asus ROG SWIFT OLED PG42UQ
Case	Thermaltake Core P3 TG
Audio Device(s)	Realtek on board > Sony Receiver > Cerwin Vegas
Power Supply	be quiet DARK POWER PRO 12 1500W
Mouse	ROG STRIX Impact Electro Punk
Keyboard	ROG STRIX Scope TKL Electro Punk
Software	Windows 11

System Name	WorkInProgress
Processor	AMD 7800X3D
Motherboard	MSI X670E GAMING PLUS
Cooling	Thermalright AM5 Contact Frame + Phantom Spirit 120SE
Memory	2x32GB G.Skill Trident Z5 NEO DDR5 6000 CL32
Video Card(s)	Asus Dual Radeon™ RX 6700 XT OC Edition
Storage	WD SN770 1TB (Boot)\|1x WD SN850X 8TB (Gaming)\| 2x2TB WD SN770\| 2x2TB+2x4TB Crucial BX500
Display(s)	LG GP850-B
Case	Corsair 760T (White) {1xCorsair ML120 Pro\|5xML140 Pro}
Audio Device(s)	Yamaha RX-V573\|Speakers: JBL Control One\|Auna 300-CN\|Wharfedale Diamond SW150
Power Supply	Seasonic Focus GX-850 80+ GOLD
Mouse	Logitech G502 X
Keyboard	Cherry G80-3000N (TKL)
Software	Windows 11 Home
Benchmark Scores	ლ(ಠ益ಠ)ლ

Processor	faster at instructions than yours
Motherboard	more nurturing than yours
Cooling	frostier than yours
Memory	superior scheduling & haphazardly entry than yours
Video Card(s)	better rasterization than yours
Storage	more ample than yours
Display(s)	increased pixels than yours
Case	fancier than yours
Audio Device(s)	further audible than yours
Power Supply	additional amps x volts than yours
Mouse	without as much gnawing as yours
Keyboard	less clicky than yours
VR HMD	not as odd looking as yours
Software	extra mushier than yours
Benchmark Scores	up yours

How many fans can i have?

Roderika

dirtyferret

sneekypeet

not-so supermod

FreedomEclipse

~Technological Technocrat~

dirtyferret

Chrispy_

Assimilator

System Name	Bragging Rights
Processor	Atom Z3735F 1.33GHz
Motherboard	It has no markings but it's green
Cooling	No, it's a 2.2W processor
Memory	2GB DDR3L-1333
Video Card(s)	Gen7 Intel HD (4EU @ 311MHz)
Storage	32GB eMMC and 128GB Sandisk Extreme U3
Display(s)	10" IPS 1280x800 60Hz
Case	Veddha T2
Audio Device(s)	Apparently, yes
Power Supply	Samsung 18W 5V fast-charger
Mouse	MX Anywhere 2
Keyboard	Logitech MX Keys (not Cherry MX at all)
VR HMD	Samsung Oddyssey, not that I'd plug it into this though....
Software	W10 21H1, barely
Benchmark Scores	I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.

System Name	Firelance.
Processor	Threadripper 3960X
Motherboard	ROG Strix TRX40-E Gaming
Cooling	IceGem 360 + 6x Arctic Cooling P12
Memory	8x 16GB Patriot Viper DDR4-3200 CL16
Video Card(s)	MSI GeForce RTX 4060 Ti Ventus 2X OC
Storage	2TB WD SN850X (boot), 4TB Crucial P3 (data)
Display(s)	Dell S3221QS(A) (32" 38x21 60Hz) + 2x AOC Q32E2N (32" 25x14 75Hz)
Case	Enthoo Pro II Server Edition (Closed Panel) + 6 fans
Power Supply	Fractal Design Ion+ 2 Platinum 760W
Mouse	Logitech G604
Keyboard	Razer Pro Type Ultra
Software	Windows 10 Professional x64