Front case fans not working

Richman711

Richman711

Richman711

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Joined
31 Dec 2013
Posts
14
Hi guys

I've just finished doing my first build using the corsair spec delta carbide series

The case comes with 1 rear fan and 3 front, at the moment it has no OS and just comes up with the error reboot with boot device or something a long those lines but I don't want to go any further as I'm not sure how detrimental it would be without the front fans

All the front fans have a 3 pin and 4 pin lead, the 4 pin ones are connected to some kind of joiner down to 1 single pin plug, I've connected this to a fan header on the board, I think this is the error tbh??

Just to clarify, rear and cpu fan working as should

Cheers

kyle
 
OK so I think I've sussed this, going to open the case back up later

Bassically I've messed up, the 4 pin plug on the fan is for the leds built into the fan and the 3 pin the actual power for the fan it's self. So basically I've plugged leds into a 12v fan header, I presume leds will now be dead but what a about the board?

Second question, I have 3 fans but only 2 fan headers, 1 on which is the pump one, can you safely run 2 fans off 1 header?

Kyle
 
Photos might help - fans can be 3 or 4-pin. But RGB connections can also be 3 or 4-pin. 4-pin LEDs are 12V so typically would survive ok plugged into a fan header. 3-pin LEDs are typically addressable and run off 5V. A motherboard is unlikely to be damaged by the wrong LED load as they can't draw much current for long.

In most cases you can safely run 2 fans off one header. A typical motherboard fan header will supply up to 1A and most fans use less than half an amp at full speed. Best to check the motherboard manual and the fan specs.

Are you sure you only have 2 fan headers? Most motherboards have 3-4+, again check the manual for location and specs.

Have you looked at the manual for that case? It will probably answer most of these questions. Maybe there is a power connection for the fan splitter, which you need to plug into the power supply?
 
Hi easy way with front fans is to run off a molex to X amount of fans block.
Only fans run of mine are the rear fan and PSU fan lead others like three rad fans run of molex leads tucked away.
you can also run them of a controller either at front or rear but i just prefer front ones to run at a speed if need to move more air exhaust ones are better for that as drawing air out of case not pushing it in where can be lost/cause hot spots.

something like one of these but there are others. https://www.overclockers.co.uk/phanteks-pwm-fan-hub-black-ca-009-pt.html
 
As said, 2x fans on single fan header is almost always okay, often 3x and sometimes even 4x fans can be ran on a single header. If fans are PWM 4-pin you can use a PWM hub / splitter with PSU power to power and control fans' speed.

You have a good airflow case. I suggest using all front as intakes, remove all PCIe back slot covers to increase rear vent ara and improve front to back airflow around GPU.

Below is link to basic guild to case airflow and cooling:
https://forums.overclockers.co.uk/threads/positive-or-negative-airflow.18648536/#post-27464847

If you have any questions or suggestions please post them.
 
cheers for all the reply's

build is:

ryzen 5 2600 cpu
aorus b450 mobo
asrock rx590
giga 700w psu
t force ddr4 16gb


I've got it all working now, basically the 3 pin plugs are the fan feeds and the 4 pin for the leds.
I had another look and found system fan 1 and 2, a pump fan ( for rads ) cpu opt and cpu fan
at the moment all of these are running, 1 exhaust, 1 cpu, and 3 intake fans.

temps seem good, idle at around 32 and sits at about 60 while gaming, core temp shows it peaked at 74 but ive not ben able to catch it do this. the only issue I have is that all the case fans run at around 900 800 rpm and I cant adjust them in bias/

presume from here I either need 4 pin fans or a controller?

cheers for the help
 
More than likely your motherboard has DC speed control option for some/all of its fan headers. 3-pin fans can be controlled using DC control so see if you can enable that in BIOS.
 
What case do you have? And maybe what fans does case have? Might help us determine best way to improve fan control. ;)
 
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