scyth33 (OP)
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April 05, 2015, 12:44:08 PM
Last edit: April 05, 2015, 01:02:38 PM by scyth33 |
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Hi, i've got the dell 2100w psu. its insanely loud. does anyone know how to manually control the speed of the fan?
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philipma1957
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April 05, 2015, 01:17:36 PM |
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Hi, i've got the dell 2100w psu. its insanely loud. does anyone know how to manually control the speed of the fan?
maybe sidehack? send him a pm |
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klondike_bar
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April 05, 2015, 01:30:17 PM |
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pretty sure its internally controlled based on load and temperature sensors.
IME with server PSUs, anything over 40% load gets loud, and anything over 70% load gets outrageously loud. at 90+ load you absolutely need a datacenter due to noise
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sidehack
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April 05, 2015, 02:31:54 PM |
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I think we've got one of these at the shop. Novak spent more time playing with it, I'll see if he's got any notes on the thing.
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scyth33 (OP)
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April 05, 2015, 02:56:53 PM |
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I think we've got one of these at the shop. Novak spent more time playing with it, I'll see if he's got any notes on the thing.
sure! thank you. this psu is very loud.... |
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Subw
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April 05, 2015, 03:01:52 PM |
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pretty sure its internally controlled based on load and temperature sensors.
nope, it is constant speed regardless of load or temperature |
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Acid Alchamy
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April 05, 2015, 05:54:14 PM |
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Simple...Open up PSU and add a 1/2 Resistor at whatever Ohms to the power cable leading to the fans. Ive done this to a few server PSU's just to make them more quiet.
Enjoy,
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scyth33 (OP)
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April 05, 2015, 06:14:59 PM |
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Simple...Open up PSU and add a 1/2 Resistor at whatever Ohms to the power cable leading to the fans. Ive done this to a few server PSU's just to make them more quiet.
Enjoy,
that's my temp solution. but I'm afraid the psu would overheat. sometimes the psu won't turn on if the fan is spinning too slow, any solutions to that? |
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novak@gekkoscience
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April 05, 2015, 07:54:52 PM |
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I think we've got one of these at the shop. Novak spent more time playing with it, I'll see if he's got any notes on the thing.
I didn't really look for fan control, I pretty much just switched it on and played with voltage adjust. B2 to 5v via potentiometer = voltage increase C4 to 5v via potentiometer = voltage increase C2 to 5v = voltage increase Here's the pinout reference I found and everything I checked on it seems to be correct- but it has no fan speed control. http://static.rcgroups.net/forums/attachments/3/1/3/5/4/3/a4644398-12-Dell%20Poweredge%202100w%20pinout.jpg?d=1329627059I can double check but for some reason I was thinking the fan went on full speed when the supply is first powered on but slowed after a second or so (at basically zero load). If that's the case we might have slightly different supplies or possibly yours has a bad temperature sensor or something. -- novak |
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scyth33 (OP)
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April 06, 2015, 05:00:43 AM |
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I think we've got one of these at the shop. Novak spent more time playing with it, I'll see if he's got any notes on the thing.
I didn't really look for fan control, I pretty much just switched it on and played with voltage adjust. B2 to 5v via potentiometer = voltage increase C4 to 5v via potentiometer = voltage increase C2 to 5v = voltage increase Here's the pinout reference I found and everything I checked on it seems to be correct- but it has no fan speed control. http://static.rcgroups.net/forums/attachments/3/1/3/5/4/3/a4644398-12-Dell%20Poweredge%202100w%20pinout.jpg?d=1329627059I can double check but for some reason I was thinking the fan went on full speed when the supply is first powered on but slowed after a second or so (at basically zero load). If that's the case we might have slightly different supplies or possibly yours has a bad temperature sensor or something. -- novak does adjusting the voltage affect the fan? my fan turns down after startup too but not silent |
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novak@gekkoscience
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April 06, 2015, 07:39:58 PM |
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I think we've got one of these at the shop. Novak spent more time playing with it, I'll see if he's got any notes on the thing.
I didn't really look for fan control, I pretty much just switched it on and played with voltage adjust. B2 to 5v via potentiometer = voltage increase C4 to 5v via potentiometer = voltage increase C2 to 5v = voltage increase Here's the pinout reference I found and everything I checked on it seems to be correct- but it has no fan speed control. http://static.rcgroups.net/forums/attachments/3/1/3/5/4/3/a4644398-12-Dell%20Poweredge%202100w%20pinout.jpg?d=1329627059I can double check but for some reason I was thinking the fan went on full speed when the supply is first powered on but slowed after a second or so (at basically zero load). If that's the case we might have slightly different supplies or possibly yours has a bad temperature sensor or something. -- novak does adjusting the voltage affect the fan? my fan turns down after startup too but not silent No, adjusting the voltage has no effect (again, at pretty much zero load so I assume it is temperature driven). Mine is also not silent. -- novak |
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