Originally Posted by wkearney99
So where are you getting your efficiency numbers for the PSU? And how does they compare to the overall power consumption of a single supply? Especially as full drive capacity is reached? I'm not arguing for them, as much as I'm not convinced a single larger supply is going to be as necessary/useful as many folks are assuming.
I'm not all that bothered by the PSU fan or side blower noise. The twin case fans are the problem, they're way too eff'ing loud. I put on a rheostat fan controller to tone down their racket. I've ordered the fan wall panel but have not yet installed it. I'm guessing the use the fan wall along with different case fans would be a better solution when noise is a concern.
I am not arguing too:), just spread my observation and finding
the PSU is not 80+, you can check on PSU model, and compare...
This is my find-out:
each module is 500W rate (you can open the PSU case and see the interface(electronics),.
when 2 modules is active.. those modules are working together to supply "the juice" 1000W rate.
when only 1 module. there is only one active module to work, where draws more watts from the outlet (why? did not go further investigation)
you can do a simple way with your severs( if you have PSU that support reading wattage load or kill-a-watt):
try to load some HDs and run with a single PSU module or two modules, and do some tasks...
the PSU case is configure as :
1) 2 PSU module + 1 Standby = 1000W rate
2) 3 PSU module + 1 standby = 1500W rate
but... the our PSU case only support 1000W rate :P. this is why.... they covered one additional slot .
the optimal configuration is 2 modules working together
the nice thing... PSU case can send informatin viaSMBus/io2c to motherboard, for example sends query in PSU status to PSU case from motherboard
, neat hah...
if you follow the current trend on PSU, redundant PSU mostly have 2 slot, for example: each module is rated for 500W where the other module is on standby mode ( total is 500W, when something happens. the "smart PSU interface" will switch to the other psu module)
60mm fan is running rgghhhh 7000-10000RPM ( as I remember, you can check the fan model)
the best solution replacing the fan (PWM or not) and let motherboard control the speed.
If you have intel motherboard version, FB-DIMM generates much heat... not CPUs..
PSU fan and blower fan was buggers for me
. my current system is pretty quite... unless... I am crunching processes on some VMs... the motherboard will speed up my back fans and cpu fans (cpus fans does not generate much noise...).
to make quite on blower fan, I just set to 2000RPM where requires to dissipate heat from add-on cards and internal HDs.
installing fan wall is easy
, I just use "spacer" from broken window blinds... with double-sided tape (posted on my previous post)
the other thought:
if you follow "fan wall, please take consideration on how to pull air to outside case.