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Psu fan replace, possible for this psu?

post #1 of 16
Thread Starter 
My parents pc has an FSP-350-60emdn. The default 120mm fan has two fan wires, however they are solderd into a small pcb print inside the psu.
I assume its some kind of thermal monitoring that pcb print, since nothing else is connected to it. Besides the fan wires of course.

But anyways, is it still possible to install a new 120mm fan, if I bypass the small pcb print (remove it), and then connect the fan wires for the new fan to the motherboard, or just a 5 / 12 volt adapter?
Edited by wendigo4700 - 4/13/14 at 4:45am
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post #2 of 16
Which FSP model is it?
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Seravee
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Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
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LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
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Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
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post #3 of 16
Thread Starter 
FSP350-60emdn. I just quickly looked. So I will also update #1
The devils pc.
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The devils pc.
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i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
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1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
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post #4 of 16
I cant find any info on that, i dont think its worth taking the PSU apart to replace fan but you can do it if you want to
Seravee
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Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Dali Opticon Vokal x2 Dali Opticon 2 x2 Dali Opticon 1 
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Dali E12 F Subwoofer CableMod E series PSU cable set CableMod LED Strips 
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Dali Opticon Vokal x2 Dali Opticon 2 x2 Dali Opticon 1 
AudioOtherOther
Dali E12 F Subwoofer CableMod E series PSU cable set CableMod LED Strips 
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post #5 of 16
Thread Starter 
What info do you need?

Because when typing in that fsp350-60emdn into google, lots of links shows up. But its not that kind of into you had in mind?

The reason I wanted to replace the default fan, is its so bloody loud. Even in idle.
So I just wanted to know, if I the method I explained in #1 will do the trick?
Edited by wendigo4700 - 4/13/14 at 5:04am
The devils pc.
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
Hard DriveCoolingOSMonitor
1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
Mouse PadAudioOther
QPAD CT Medium 4mm Creative SoundBlaster Z Noblechairs ICON series 
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Reply
The devils pc.
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
Hard DriveCoolingOSMonitor
1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
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QPAD CT Medium 4mm Creative SoundBlaster Z Noblechairs ICON series 
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post #6 of 16
Quote:
Originally Posted by wendigo4700 View Post

What info do you need?

Because when typing in that fsp350-60emdn into google, lots of links shows up. But its not that kind of into you had in mind?

The reason I wanted to replace the default fan, is its so bloody loud. Even in idle.
So I just wanted to know, if I the method I explained in #1 will do the trick?

I was trying to find a review to see if it was a decent unit or not, If its something crappy then there is no need to open it up to relace the fan you would be better off with a new one
Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Dali Opticon Vokal x2 Dali Opticon 2 x2 Dali Opticon 1 
AudioOtherOther
Dali E12 F Subwoofer CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Dali Opticon Vokal x2 Dali Opticon 2 x2 Dali Opticon 1 
AudioOtherOther
Dali E12 F Subwoofer CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
post #7 of 16
Thread Starter 
Have to keep the cost, at 0.

And I have some 120mm fans laying around. So the operation, would be cost free.

So my only option is to know, how to replace the fan. But my method in #1 is questionable?
The devils pc.
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
Hard DriveCoolingOSMonitor
1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
Mouse PadAudioOther
QPAD CT Medium 4mm Creative SoundBlaster Z Noblechairs ICON series 
  hide details  
Reply
The devils pc.
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
Hard DriveCoolingOSMonitor
1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
Mouse PadAudioOther
QPAD CT Medium 4mm Creative SoundBlaster Z Noblechairs ICON series 
  hide details  
Reply
post #8 of 16
Thread Starter 
I can assume, nobody here have ever tried the stuff I want to do?
The devils pc.
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
Hard DriveCoolingOSMonitor
1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
Mouse PadAudioOther
QPAD CT Medium 4mm Creative SoundBlaster Z Noblechairs ICON series 
  hide details  
Reply
The devils pc.
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5-4690K MSI Z87-G45 Asus strix gtx 980 G.Skill TridentX, 8GBx2, 2400MHz 
Hard DriveCoolingOSMonitor
1x Samsung 840 PRO 256GB Phanteks ph-tc14pe w/ BeQuiet SW2 550RPM  Windows 10 Pro 64bit BenQ XL2411Z 
KeyboardPowerCaseMouse
Saitek eclipse II BeQuiet! Dark Power Pro P11 550w Lian Li PC-8FIB  Logitech MX518 
Mouse PadAudioOther
QPAD CT Medium 4mm Creative SoundBlaster Z Noblechairs ICON series 
  hide details  
Reply
post #9 of 16
By "print" do you mean it's soldered to the PCB? Regardless, you could connect the new fan to whatever the old fan is plugged into. Or you could run the wires out to the motherboard. If you're fine with voiding the warranty, do either. If you want something significantly quieter, you're going to have to deal with less airflow -> higher temps -> higher chance of failure.

Two pins is usual for a fan in a power supply. They just vary the nominal +12V line based on a temperature reading somewhere else in the power supply. (thermistor attached to a heatsink) There's no reason for them to have the third wire for the rpm reporting. If you connect your own fan to what they have, you'd just have to solder or otherwise connect the +12V nominal and ground and leave out any others.
post #10 of 16
Quote:
Originally Posted by wendigo4700 View Post

The default 120mm fan has two fan wires, however they are soldered into a small pcb print inside the psu. I assume its some kind of thermal monitoring that [printed circuit board], since nothing else is connected to it.

I have an old 350W FSP with 2 small circuit boards. One board is soldered to the large main board through several pins, and it contains the PSU controller/superviser chip. The other circuit board is screwed to one of the large heatsinks and contains the fan controller. You said your small board has nothing but the fan connected to it. Impossible because the board needs a power source, and if the fan is controlled by temperature there's a good chance there are two wires leading to a temperature sensor (thermistor) attached to one of the big heatsinks or to one of the big donut coils.

Don't remove the small circuit board because it may be required for PSU operation. If you replace the fan, cut the original fan wires, several inches away from the small circuit board, and splice the new fan into those wires. Don't solder the circuit board because there could be tiny surface mount components on it that will float away in the molten solder. Make good splices and cover them with electrical insulation because PSUs have exposed high voltage at lots of locations inside, even some of the big heatsinks, and you must always keep the high voltage and low voltage sections separate. A piece of heatshrink tubing over each splice is the best electrical insulation, and you can use it whether you merely wrap the bare wires together, solder them, or twist them together with small wire nuts. Use a nylon wire tie (NOT a piece of wire, even if it's insulated, and not a twist tie) to keep the fan wires away from high voltage and the fan blades. Do NOT plug in or test the PSU until after you reinstall its cover, including tighten all its screws.

It wouldn't hurt to post some GOOD photos of the PSU, especially of that small circuit board. Good = sharp, well lit, and includes all the important features (like the wire connections), each properly identified.
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