I'll start my own thread here with an admission: I own one. Bought it cheaply on eBay and I have not yet put it into use.
At the right price, 90 bays of SAS3 connectivity in one box with great redundancy is heaven. But, in practical use, the co-axial fans are utter hell. They scream. Remove one and the others spin up higher. 8500 rpm is the very low end at which the firmware will let them operate. They are the loudest fans on the Supermicro matrix, rated at 76db apiece, but I get 86db from five of them at 1m away.
I think we need a support group here -- at least I need a support group. And let this thread serve as a warning to others: these are not cheap boxes and they will ruin marriages UNLESS there is a way to better control the fans.
I'm currently:
- looking for insights as to where, precisely the EXP1, EXP2, EXP3 sensors live, as those get very hot very quickly unless all 5 fans are plugged in.
- about to pull apart the back of the chassis to find the above and see how I can defeat all five fans at once -- without re-wiring all five fans individually
- wondering whether anyone here has found it possible to use Supermicro's firmware tools to change settings like minimum fan speeds and step-down fan logic
- eager to track down the guy who manages this product for Supermicro...
At the right price, 90 bays of SAS3 connectivity in one box with great redundancy is heaven. But, in practical use, the co-axial fans are utter hell. They scream. Remove one and the others spin up higher. 8500 rpm is the very low end at which the firmware will let them operate. They are the loudest fans on the Supermicro matrix, rated at 76db apiece, but I get 86db from five of them at 1m away.
I think we need a support group here -- at least I need a support group. And let this thread serve as a warning to others: these are not cheap boxes and they will ruin marriages UNLESS there is a way to better control the fans.
I'm currently:
- looking for insights as to where, precisely the EXP1, EXP2, EXP3 sensors live, as those get very hot very quickly unless all 5 fans are plugged in.
- about to pull apart the back of the chassis to find the above and see how I can defeat all five fans at once -- without re-wiring all five fans individually
- wondering whether anyone here has found it possible to use Supermicro's firmware tools to change settings like minimum fan speeds and step-down fan logic
- eager to track down the guy who manages this product for Supermicro...
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