Stange Behavior with Case Fans I think its the motherboard fan headers. Need help

[robotdino304]

All of sudden my case fans have been acting funny with my motherboard. My computer boots fine but some of the case fans that are connected to the fan headers spin and some of them don't spin at all and are stuck. I do not know what the issue is.

Thanks for the help!

Here are my system specs

Gigabyte UDH5- Z 87
GTX 650 Ti 2gb
Intel i7 4770k
Corsair 850 watt psu
G Skill 8gb of Ram

 

[Vladislav Andreev]

The only way to find out for sure is to plug in the fans that are not spinning to another fan header and see if it spins. If it does, then it is most likely a faulty header on the motherboard and you should contact the motherboard manufacturer. If the fan doesn't spin, then it is the fan, which you should contact the fan manufacturer.

 

[robotdino304]

Tired the fans in all the different headers. Same Problem. Sometimes the problem goes to a different headers vice versa.

 

[robotdino304]

Many of my fans have a 3 pin connection. I only have one fan that has a four pin connection. That could that be a reason why?


I reflashed the bios to the newest version and still the same problem. It seems to be two system fan headers on the bottom of the motherboard. some of the headers work.I think my best bet is to purchase a fan controller. I really dont want to RMA this motherboard and go through the trouble. I have already been through that no fun. What should I do?

 

[tombodet87]

I just submitted a thread with what sounds like a similar problem here with a z87x-ud4h.

 

[robotdino304]

This issue has me puzzled. Maybe its a problem with the voltage and fans. My CPU fans runs perfectly. I have an aftermarket heat sink and fan. I have a Noctua NH-U14s with dual fans connected via fan splitter hooked to my cpu fan header. That is running fine at 28 degree's Celsius. I just bought a fan controller so I think that's the safest route to go. my computer boots fine and it plays well with games. It can't be a PSU issue?

 

[tombodet87]

I'd say no to the PSU since we're seeing similar issues and we have different supplies.

It's as if the calibration is a bit off, the headers are only giving enough voltage to spin at the assumed speed they want to achieve and that isn't enough to get over the fan's initial inertia or.....

 

[robotdino304]

I solved the issue by purchasing a fan controller. maybe you should consider that as well. it is good to have a fan controller that I can use for future builds.