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How can I tell which way a case fan moves air?

Check the fan frame for an airflow-direction arrow. The arrow points in the direction the air moves and is the most reliable guide.

Reverse-blade fans may move air in the opposite direction while keeping the preferred side visible. Do not rely on the blade appearance alone.

If the fan has no visible arrow or you are unsure whether it is a standard or reverse-blade model, check the product specifications or scan the QR code on the packaging to access the product manual.

After installation, keep cables and fingers clear of the blades. You can briefly hold a small piece of tissue near the fan to confirm which side draws air in and which side pushes it out, but never insert anything into the fan.

How can I tell which way a case fan moves air?

Check the fan frame for an airflow-direction arrow. The arrow points in the direction the air moves and is the most reliable guide.

On a standard case fan, air generally:





Enters through the open side of the fan



Exits through the side with the frame supports and motor label

Reverse-blade fans may move air in the opposite direction while keeping the preferred side visible. Do not rely on the blade appearance alone.

If the fan has no visible arrow or you are unsure whether it is a standard or reverse-blade model, check the product specifications or scan the QR code on the packaging to access the product manual.

After installation, keep cables and fingers clear of the blades. You can briefly hold a small piece of tissue near the fan to confirm which side draws air in and which side pushes it out, but never insert anything into the fan.

Paano ko malalaman kung saang direksyon gumagalaw ang hangin sa isang case fan?

Turn off the PC, switch off the PSU, and unplug the power cord before connecting or disconnecting any fan.

Check the manual for your exact fan hub or controller model, as connector types and supported functions vary.

Do not exceed the number of supported fans or the electrical limits stated for the hub and motherboard header. Do not mix proprietary fan connectors or use an adapter unless compatibility has been specifically confirmed.

If the hub also controls lighting, connect its ARGB synchronization cable only as shown in the manual. Never connect a 3-pin 5V ARGB connector to a 4-pin 12V RGB header.

After starting the PC, confirm that every fan spins. A hub may report the speed of only one fan while controlling all connected fans together; this can be normal.

If a fan does not operate, turn off and unplug the PC before rechecking the hub power, control cable, primary port, and individual fan connections.

How do I connect multiple fans to a hub?

Turn off the PC, switch off the PSU, and unplug the power cord before connecting or disconnecting any fan.

Check the manual for your exact fan hub or controller model, as connector types and supported functions vary.

Follow these general steps:





Connect the hub to its required power source, such as SATA power, if specified.



Connect the hub’s fan-control or PWM cable to the appropriate motherboard fan header.



Connect each compatible fan to a numbered fan port on the hub.



If one port is marked Primary, Master, RPM, or FAN 1, connect a fan to that port so the motherboard can receive a fan-speed reading.

Do not exceed the number of supported fans or the electrical limits stated for the hub and motherboard header. Do not mix proprietary fan connectors or use an adapter unless compatibility has been specifically confirmed.

If the hub also controls lighting, connect its ARGB synchronization cable only as shown in the manual. Never connect a 3-pin 5V ARGB connector to a 4-pin 12V RGB header.

After starting the PC, confirm that every fan spins. A hub may report the speed of only one fan while controlling all connected fans together; this can be normal.

If a fan does not operate, turn off and unplug the PC before rechecking the hub power, control cable, primary port, and individual fan connections.

How do I connect multiple fans to a hub?

Paano ko ikokonekta ang maraming fan sa isang hub?

How can I troubleshoot a PC case fan that is not working properly?

Shut down the computer, switch off the power supply, and unplug the power cable before inspecting or reconnecting a fan.

For more detailed instructions, please read 

How to Troubleshoot PC Case Fan Issues Like a Pro

How can I troubleshoot a PC case fan that is not working properly?

Shut down the computer, switch off the power supply, and unplug the power cable before inspecting or reconnecting a fan.

Check the following:





Make sure that no cables or other objects are touching the fan blades.



Remove dust from the fan blades and surrounding vents using compressed air or a soft brush.



Confirm that the fan power cable is securely connected to a compatible motherboard fan header or fan hub.



If you are using a fan hub, check its power connection and the cable connecting it to the motherboard.



Check the BIOS or compatible fan-control software for the fan curve and the correct PWM or DC control mode. Some fans may stop or spin slowly when system temperatures are low.



If the fan spins but its lighting does not work, check the separate ARGB or RGB cable and controller connection.



Never connect a 5 V three-pin ARGB connector to a 12 V four-pin RGB header.



If the connectors are compatible, test the fan using another motherboard header or controller port. This can help determine whether the issue is with the fan, motherboard header, hub, or controller.



For more detailed instructions, please read How to Troubleshoot PC Case Fan Issues Like a Pro.

Paano ko maaayos ang problema ng fan ng PC case na hindi gumagana nang maayos?

Isinilang mula sa isang ibinahaging hilig sa paglalaro at pagbuo ng PC, ang darkFlash ay nakatuon sa paglikha ng mga produktong pinagsasama ang natatanging disenyo, maaasahang pagganap, at maalalahaning inobasyon.

Sa pamamagitan ng personal na pagbuo, pagsubok, at paggamit ng aming mga PC case, mga solusyon sa pagpapalamig, mga case fan, mga muwebles sa paglalaro, at mga aksesorya, nagkakaroon kami ng mas malalim na pag-unawa sa kung ano talaga ang kailangan ng mga gumagamit. Ang bawat produkto ay binuo nang may layunin, pino sa pamamagitan ng karanasan, at ininhinyero upang mapahusay ang paraan ng pagbuo, paglalaro, at paglikha ng mga tao.

Ang aming layunin ay simple: bigyang kapangyarihan ang bawat gumagamit gamit ang mga produktong gumaganap sa kanilang pinakamahusay na antas at magbigay-inspirasyon sa kanila na bumuo nang walang limitasyon.

darkFlash

Born from a shared passion for gaming and PC building, darkFlash is dedicated to creating products that combine distinctive design, reliable performance, and thoughtful innovation.

By personally building, testing, and using our PC cases, cooling solutions, case fans, gaming furniture, and accessories, we gain a deeper understanding of what users truly need. Every product is developed with purpose, refined through experience, and engineered to elevate the way people build, play, and create.

Our goal is simple: to empower every user with products that perform at their best and inspire them to build without limits.