Wow, I just learned something about SM PSU's

[Fritz]

My workstation, which consists of an SC745TQ, X9DRD-7LN4F-JBOD, 8HD's and a single 920 Platinum PSU has been humming along nicely for almost a year now. While not silent, it wasn't objectionably noisy. I just swapped out the 920 PSU for a 1280 SQ and the difference is like night and day. I assumed most of the noise was coming from the 8 chassis fans I have in the box. I was wrong. Most of the noise was in fact coming from the PSU. This box is amazingly quiet now. I have a couple more SQ's running in the rack but back there, the LB6M dominates and I can't hear the silence over it. But in here where it's quiet, the difference is profound. I'm convinced the SQ PSU's are worth every penny if quiet is important.

 

[j_h_o]

Hehe. I always ask that when people say their SC846 are noisy: Replace with 920 SQ. Glad it's fixed!

 

[OakStormwind]

Hehe. I always ask that when people say their SC846 are noisy: Replace with 920 SQ. Glad it's fixed!

I replaced my 920R1 with a second hand 920SQ. That's really nice!

 

[pc-tecky]

@Fritz, what PSUs did you end up getting? I see a few available options. Do I want the 920W, the 1280w or the 1400w PSU? Do they have different PCB connectors so as to make them not work in older chassis?

 

[Fritz]

I have the 1280's. They were considerably cheaper than the 920's and are quiet enough to suit me. I did have to shave the plugs down with a Dremel but that was no biggy.

supermicro sq power supply 1280w $59