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Topic: Making server PSUs quieter (Read 2206 times)

hero member
Activity: 2492
Merit: 621
January 23, 2017, 04:48:02 PM
#27
Thanks for the pictures. Does look very similar.

Not sure there are an SP20's available cheaply enough for just a fan here in the UK.
sr. member
Activity: 469
Merit: 500
January 23, 2017, 03:31:41 PM
#26




thats out of an sp20


edit had to resize pics
sr. member
Activity: 469
Merit: 500
January 23, 2017, 03:22:47 PM
#25
Thats exactly what im teying to find out. Im hoping iust a splice into a larger fan wiring will be enough. But just waiting on parts to be delivered before i can start.


with yours i would just cut the connector off the stock fan and wire it to the fan ur trying to install , then just plug it back into the stock location.that would take care of everything as then u wouldnt have to trick the psu into thinking the stock fan was still there

sp20's used what apears to be the same fan connector , i have a couple here if u want me to dig one out and take a picture , if its the same u could get a fan out of an sp20 and just plug it in without having to splice anything
hero member
Activity: 2492
Merit: 621
January 23, 2017, 02:56:05 PM
#24
Thats exactly what im teying to find out. Im hoping iust a splice into a larger fan wiring will be enough. But just waiting on parts to be delivered before i can start.
sr. member
Activity: 469
Merit: 500
January 23, 2017, 02:44:11 PM
#23
MarkAZ was making some acrylic replacement case covers that incorporated a PWM fan controller and mounting for a 120mm fan, they looked identical to that one.  That could be him, or they are getting it from him.  I did the same by cutting and modifying a case in the same way and it will keep up with cooling no problem.  On top of the significant noise savings, you save quite a bit of wasted wattage with a single 120mm fan for airflow instead of the 3x jet engines.

what do u have to do to prevent the psu from shutting down due to the stock fans being removed , i have a boatload of s3 and s4 fans i could use to mod some psus for home use
legendary
Activity: 1022
Merit: 1003
January 23, 2017, 03:07:02 AM
#22
MarkAZ was making some acrylic replacement case covers that incorporated a PWM fan controller and mounting for a 120mm fan, they looked identical to that one.  That could be him, or they are getting it from him.  I did the same by cutting and modifying a case in the same way and it will keep up with cooling no problem.  On top of the significant noise savings, you save quite a bit of wasted wattage with a single 120mm fan for airflow instead of the 3x jet engines.
sr. member
Activity: 469
Merit: 500
January 22, 2017, 07:41:54 PM
#21
Sorry for the delay. No update as of yet. There was a hold up with the breakout board. Courier lost it at a depot or something.

A sort of update is I think I've found the name of the fan connector. Its a 4pin micro JST connector. From what I've seen there are different types with different pin pitches so taken a guess on a pair (male and female bare ended) just to see if they match up. If they do I can cut and join to a regular 4 pin connector and see what happens.

I'm hoping the fan is temp controlled as it says something about temp on the pcb when I opened it up.


ive seen this on ebay,
http://www.ebay.com/itm/2X-Bitmain-Antminer-S9-and-or-S7-IBM-2880W-PSU-Power-Supply-Kit-208V-Bitcoin-/252733697377?hash=item3ad81a2d61:g:AR0AAOSwLs5XK5A4
 ive never used on and dont know if the guys is a member here, im half tempted though as id love to be able to run some 2880's at home

maybe somone on theese boards knows something about this setup
hero member
Activity: 2492
Merit: 621
January 22, 2017, 07:35:25 PM
#20
Sorry for the delay. No update as of yet. There was a hold up with the breakout board. Courier lost it at a depot or something.

A sort of update is I think I've found the name of the fan connector. Its a 4pin micro JST connector. From what I've seen there are different types with different pin pitches so taken a guess on a pair (male and female bare ended) just to see if they match up. If they do I can cut and join to a regular 4 pin connector and see what happens.

I'm hoping the fan is temp controlled as it says something about temp on the pcb when I opened it up.
sr. member
Activity: 264
Merit: 250
January 11, 2017, 08:37:05 PM
#19
any update ?
legendary
Activity: 3220
Merit: 1220
January 05, 2017, 07:24:21 PM
#18
That looks exactly the same connector that they used on SP20's
hero member
Activity: 628
Merit: 504
January 05, 2017, 06:25:22 AM
#17
let it plugged in and cut the wire, then put some thermo retractable tube to "solder" the blue yellow red and black wires to your pwm fan. You can add a big variable resistor to the power wire to regulate speed, I had one of these on a 800w dell server psus with an ant s1 fan (pretty silent but powerful).

I might find it tonight and post a picture to make this easier, but it's a ghetto fix (possibe for 3-4 psus but not for a farm). When I used it 24/7 I had to glue a little heatsink on the back, it was a variable resistor for the volume know on a stereo system.

Have fun !
hero member
Activity: 2492
Merit: 621
January 04, 2017, 04:55:45 PM
#16
Haha, just use 4 paperclips!

Alternatively you could rewire it or solder something.

Picture of the 4 pin plug?

It's tiny. I'm useless at soldering small things lol.

Here's a picture of it next to a standard USB (a gekko stick):-



Obviously I need the adaptor to fit the connection on the pcb in the psu.
hero member
Activity: 518
Merit: 501
January 04, 2017, 02:27:40 PM
#15
Haha, just use 4 paperclips!

Alternatively you could rewire it or solder something.

Picture of the 4 pin plug?
hero member
Activity: 2492
Merit: 621
January 03, 2017, 05:27:53 PM
#14
Ok so ive got a couple of HP DPS1200 common rail Platinum PSU's. Ive taken one aprt to take a look at the innerds and found that the fan is connected with a 4pin connector, but its bloody tiny. Does anyone know if you can get a converter for it? It looks even smaller than a vga 4pin connector. Ive tried google but cant find any pictures that match just how small this thing is. If its a help ive found the fan make and model (under the 1200w 94% efficiency sticker).

http://www.nidec.com/en-NA/product/fan/category/F010/G030/P2000076/
legendary
Activity: 1050
Merit: 1000
January 01, 2017, 11:19:41 PM
#13
the DPS2000 are silent? you put your own fan, why not use those?
hero member
Activity: 672
Merit: 500
January 01, 2017, 03:16:48 AM
#12
You don't need a break out board for this PSU as it is easy to solder wires directly. And for that price you can buy twice the power. And regarding noise, servers are always louder than ATX.
You best option is to go with DPS 2000BB
hero member
Activity: 2492
Merit: 621
December 30, 2016, 03:49:17 PM
#11
Thanks for the input guys. I'll update this when I get hold of a psu and breakout board. I have an idea in mind already for mounting the fan without ruining the existing case.
hero member
Activity: 518
Merit: 501
December 30, 2016, 03:23:23 PM
#10
The only time my DPS psu's really get noisy is when it's hot as f' in the server room. Naturally, increased temperature lowers the efficiency of the psu increasing it's load.

part and parcel?
legendary
Activity: 3318
Merit: 1848
Curmudgeonly hardware guy
December 30, 2016, 03:09:01 PM
#9
In my experience the Dell 750W is good for about 400W output (depending on specific model) on dead-low fan.

Regarding load versus temperature, the temperature is usually pretty much proportional to the load unless your ambient changes quite a bit. I forget if the fan kicks on from plugin on the DPS1200, but I know it keeps running even after the PSU has been turned off (and unplugged, off buffered power).
hero member
Activity: 2492
Merit: 621
December 30, 2016, 02:53:56 PM
#8
Thanks for the input but it's the HP model I'm going for. Not the dell.
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