75ZT Community

I have 6 38mm fans running in my PSU and it sounds like a 747! Any ideas on something quieter to replace them with. They need to be 3pin fans, 40mm might just fit but they only shift about 5cfm. The oem ones are shifting 10.6cfm.

Any suggestions?? I have an acoustic rack case to be ordered but I don't think that will make a significant difference.

The only thing that seems to work is to slow them down. Yes it reduces the airflow but the noise too. You can get little plug in speed controllers.

Saying that, if they are three pin fans then are they controoled by the M/B? Maybe there's a smart fan option in the BIOS?

David, something which made an incredible amount of difference to the noise of the fan in my NAS was fitting it with rubber mounts instead of nuts and bolts.

I was quite taken aback at the difference in noise level. So much so that I bought some more and re-mounted every fan in my main PC

If you haven't given consideration to that but would like to, I have some spares which you could have. Not enough to do the whole job but certainly you could do a back-to-back test with them fitted to one fan perhaps.

The PSU is really compact, there is very little space in there, so speed controllers are not an option unfortunately. I have some rubber mounts thanks Paul, but again they dont fit due to the size of the PSU. It is tight!!

Just wondered if halving the airflow would be detrimental to the PSU. I posted on a couple of PC related forums and the concensus was, well, earplugs are an option...! lol

Monk wrote:. I have some rubber mounts thanks Paul, but again they dont fit due to the size of the PSU. It is tight!

SO was the fan installation on my NAS David but the rubber mounts are the same size as a bolt so they fit without problem.

raistlin wrote:

Monk wrote:. I have some rubber mounts thanks Paul, but again they dont fit due to the size of the PSU. It is tight!

SO was the fan installation on my NAS David but the rubber mounts are the same size as a bolt so they fit without problem.

I have a couple, I'll give it a whirl. The fitting is odd, they slide in then are screwed through the case into the fan. Nothing like a good puzzle!

This has some hefty claims at 95% noise reduction!!

http://www.rackcabinets.co.uk/o-852-aco ... stic-rack/

Monk wrote:

raistlin wrote:

Monk wrote:. I have some rubber mounts thanks Paul, but again they dont fit due to the size of the PSU. It is tight!

SO was the fan installation on my NAS David but the rubber mounts are the same size as a bolt so they fit without problem.

I have a couple, I'll give it a whirl. The fitting is odd, they slide in then are screwed through the case into the fan. Nothing like a good puzzle!

The ones I have do not screw at all David. They pull into place because they are stretchy rubber, the ends are then cut off if required. They have a small lip which completely acoustically de-couples the fan framework from the chassis framework.

raistlin wrote:

Monk wrote:

raistlin wrote:

Monk wrote:. I have some rubber mounts thanks Paul, but again they dont fit due to the size of the PSU. It is tight!

SO was the fan installation on my NAS David but the rubber mounts are the same size as a bolt so they fit without problem.

I have a couple, I'll give it a whirl. The fitting is odd, they slide in then are screwed through the case into the fan. Nothing like a good puzzle!

The ones I have do not screw at all David. They pull into place because they are stretchy rubber, the ends are then cut off if required. They have a small lip which completely acoustically de-couples the fan framework from the chassis framework.

Sorry Paul I was on about the original fitting. They sound like the same fittings I have spare. I put some on the 80mm fans and they are near slient, well I think they are. They're drowned out at the moment

OK David. Well, as usual, they're there if you want them. In any event - best of luck