I need help with my server Fanboard and Noise

[Envie77]

Hi, 
I recently bought a server from GENBAND (wird company i never heard of) over eBay. The problem now is, the server makes noise like nothing else. I know server aren't meant to be quite but its louder the a jet engine. I tried to change the bios settings to quite but that didn't change a thing. So i thought that fans are connected directly to the psu and that's why they are always at 100%. But, the fans are connected to a separate board which is connected to the motherboard via a 3 pin cable. The cable is connected to the Fan Board I2C on the mainboard. My question is, could the reason why the fans are spinning so fast, even though the Server has no load at all (unraid without anything like gaming server or NAS server installed), be that it's only a 3 pin and not a 4 pin connection. Ive read that the 4. pin is for rpm control. And if so could someone give me a guess which of the remaining 3 pins would be the right one on the fan board? 
Im sorry in genereall because im new to the whole server thing xD.

[LIGISTX]

6 hours ago, Envie77 said:

Hi, 
I recently bought a server from GENBAND (wird company i never heard of) over eBay. The problem now is, the server makes noise like nothing else. I know server aren't meant to be quite but its louder the a jet engine. I tried to change the bios settings to quite but that didn't change a thing. So i thought that fans are connected directly to the psu and that's why they are always at 100%. But, the fans are connected to a separate board which is connected to the motherboard via a 3 pin cable. The cable is connected to the Fan Board I2C on the mainboard. My question is, could the reason why the fans are spinning so fast, even though the Server has no load at all (unraid without anything like gaming server or NAS server installed), be that it's only a 3 pin and not a 4 pin connection. Ive read that the 4. pin is for rpm control. And if so could someone give me a guess which of the remaining 3 pins would be the right one on the fan board? 
Im sorry in genereall because im new to the whole server thing xD.

What parts are in this server? In the last picture it looks like there may be some standard 3 pin fan headers. You can replace the fans in it with quiet noctua 3 pin fans of the correct size and it will be fine.

 

3 pin is for DC fan control, 4 pin is for PWM fan control. Both work fine... the only issue is the mobo may not actually want to let you run them at a low RP, so you would either need to get some quiet fans that will run at say 1500 RPM max, or use a fan controller. Certainly a few options, but if you give us more info on what you actually have that would help as well.

[Envie77]

@LIGISTXHere are some pictures, i can't say what motherboard it is, unraid just says: not provided. 
yeah i theoreticaly use noctua fans but there are 2 problems:
1. noctua 80mm fans only have a Depth of 25mm and those installed fans are 40mm. 
2. costs, i paid 150 Franks ~ 150 US dollar for the server, the fans would cost me just as much. at that point it would make more sense to just buy something else.
The server has 2 xean 8core CPUs with hyperthreading and 64gb of ddr3 ram as well as 2 650W 80 plus gold psus.

[Envie77]

My other plan would be to find a cheap e atx case and a atx power supply and frankenstein the server into the new case, should work right?

[LIGISTX]

2 hours ago, Envie77 said:

@LIGISTXHere are some pictures, i can't say what motherboard it is, unraid just says: not provided. 
yeah i theoreticaly use noctua fans but there are 2 problems:
1. noctua 80mm fans only have a Depth of 25mm and those installed fans are 40mm. 
2. costs, i paid 150 Franks ~ 150 US dollar for the server, the fans would cost me just as much. at that point it would make more sense to just buy something else.
The server has 2 xean 8core CPUs with hyperthreading and 64gb of ddr3 ram as well as 2 650W 80 plus gold psus.

This may be a bit difficult… the “standard” method is using a Supermicro 4U chassis that has 3 80 (or are they 90?)mm fans behind the hot swap bays. You can remove them and replace with 3 120mm noctuas. Your chassis looks like it uses 6 80’s back go back. You may be able to replace them with larger fans in just a single line, but I am not sure how good the airflow will be. Also, those PSU’s are likely a bit portion of the noise. Again, in Supermicro 4U 24 bay chassis, you can remove the PSU’s and double stick tape a ATX PSU where the redundant ones once lived. This is all stuff I helped s buddy do. 
 

You can certainly transplant that mobo into a case assuming it is a normal ATX layout mobo… but without directed airflow the CPU’s will get pretty warm. You can get nice tower heatsinks for them, but that will be ~60 bucks each as well. 

[derr12]

yeah, anything south of a 4u chassis is going to sound like a rocket engine, just how it is because you have a tiny cpu cooler and low vertical, so high RPM 80mm's get used.  I just acquiesced to the wife to replace the 2u opteron rig with an old dell t320 tower.  you put slower quieter fans in there you will probably start overheating, but that isnt always the case.

 

It was too damn noisy.  happy wife, happy life.