Question will I have to buy a fan header/splitter?

[replojam]

Hello! I'm not a fan of writing so I'll get to the point. will I need to buy more fan headers/splitters? my motherboard is a B450M-HDV (I'm planning to upgrade soon )

 

[Aeacus]

If you're planning to hook up to 3x fans, including CPU cooler to MoBo, then you don't need fan splitters,
MoBo specs: https://www.asrock.com/MB/AMD/B450M-HDV/index.asp#Specification

 

[Lutfij]

Your board has 2x4pin fan headers and 1x3pin fan header. How many fans are you looking to pair with that board? Also, will they all be PWM fans?

 

[replojam]

Your board has 2x4pin fan headers and 1x3pin fan header. How many fans are you looking to pair with that board? Also, will they all be PWM fans?

Yeah I will be pairing 4 fans, 3 infront one in the back. The fans I will be using are the deepcool RF 120R (single color)

 

[replojam]

If you're planning to hook up to 3x fans, including CPU cooler to MoBo, then you don't need fan splitters,
MoBo specs: https://www.asrock.com/MB/AMD/B450M-HDV/index.asp#Specification

I will be putting 4 fans, 3 infront 1 in the back, I will be using the deepcool RF 120r(single color) (no cooler)

 

[Aeacus]

According to this video review, those fans (3-pack) also come with Deepcool 4-way fan splitter,

View: https://www.youtube.com/watch?v=x78NWAj_-Bw

Though, if you buy individual fans, you won't get that splitter and here, you'd need to buy additional splitter(s).
For a good fan splitter, i usually suggest Noctua y-splitters (2x in the box and 6 years of warranty),
amazon: https://www.amazon.com/Noctua-NA-SYC1-Accessory-4-pin-Y-Cables/dp/B00KG8K5CY

 

[replojam]

According to this video review, those fans (3-pack) also come with Deepcool 4-way fan splitter,

View: https://www.youtube.com/watch?v=x78NWAj_-Bw

Though, if you buy individual fans, you won't get that splitter and here, you'd need to buy additional splitter(s).
For a good fan splitter, i usually suggest Noctua y-splitters (2x in the box and 6 years of warranty),
amazon: https://www.amazon.com/Noctua-NA-SYC1-Accessory-4-pin-Y-Cables/dp/B00KG8K5CY

Yes, I will be buying it individually, so it doesn't include the splitters. But now can I use the fans without actually buying more splitters..? like the ones that is included in the motherboard?

 

[Aeacus]

Your MoBo doesn't come with any fan splitters included. What it does come with are:

• Quick Installation Guide
• Support CD
• I/O Shield
• 2 x SATA Data Cables
• 1 x Screw for M.2 Socket

You can use your fans but like i said above, only 3x fans can be connected to MoBo including CPU cooler.
In layman's terms:
CPU_FAN header -> CPU cooler (AMD's stock cooler)
SYS_FAN1 header -> 1x Deepcool RF 120r case fan
SYS_FAN2 header -> 1x Deepcool RF 120r case fan

Also, if you're thinking that you can pass by without using CPU cooler, you're greatly mistaken. It takes only mere seconds for CPU to overheat and fry without CPU cooler on it. Btw, the Ryzen CPU you're planning to go with does come with CPU cooler and it's fan does need the CPU_FAN header to operate, leaving 2x fan headers for case fans.

With 2x Noctua Y-splitters i linked above, you can easily set up your fans like so:
CPU_FAN header -> CPU cooler (AMD's stock cooler)
SYS_FAN1 header -> Noctua Y-splitter -> 2x Deepcool RF 120r case fans
SYS_FAN2 header -> Noctua Y-splitter -> 2x Deepcool RF 120r case fans