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PSU Recommendation ? ? ?

post #1 of 8
Thread Starter 
Ok, guys I have been slowly buying watercooling parts for my PC and have a few more parts to go. I plan making a external enclosure to house the WC parts in and therefore I need a Power Supply (Preferably cheap), a fan controller and a way to power 18 fans without melting cables or frying a PSU...

The PSU will be Powering:
18 Yate Loons D14SH-12 140mm
2x Koolance 450S Pumps + 2 Speed Controllers
Fan Controller + whatever Power Management items needed for to use all fans. (if requires additional power.

Any PSU recommended for this?
Also looking for a way to turn on the PSU without having it connected to a motherboard. I know a paper clip can work but I am looking forr something more secure like a adapter.
New PC System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel 5960x Rampage Extreme V LGA 2011-V3 Nvidia 780's SLI (x2) ADATA 64GB ram 
Hard DriveOptical DriveCoolingOS
PCIE Samsung 250GB (OS Drive) + x2 WD Black 2TB... Lite On Blu-Ray Recorder Corsair K110 on CPU.  windows 10 
MonitorKeyboardPowerCase
2 Qnix 2710 + Crossover UHD 404k Corsair K90 Mechanical Keyboard (MX Red) Lepa 1600 watt PSU Thermaltake case (cant remember which) 
MouseMouse PadAudio
Logitech G500 SteelSeries QCK+ none yet. Wont fit. :( onboard audio 
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New PC System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel 5960x Rampage Extreme V LGA 2011-V3 Nvidia 780's SLI (x2) ADATA 64GB ram 
Hard DriveOptical DriveCoolingOS
PCIE Samsung 250GB (OS Drive) + x2 WD Black 2TB... Lite On Blu-Ray Recorder Corsair K110 on CPU.  windows 10 
MonitorKeyboardPowerCase
2 Qnix 2710 + Crossover UHD 404k Corsair K90 Mechanical Keyboard (MX Red) Lepa 1600 watt PSU Thermaltake case (cant remember which) 
MouseMouse PadAudio
Logitech G500 SteelSeries QCK+ none yet. Wont fit. :( onboard audio 
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post #2 of 8
http://www.newegg.com/Product/Produc...orsiar%20cx430 cheap and wont detonate in your face

as for the adaptor you can get them on ebay for a few pennies
post #3 of 8
Thread Starter 
will this also work?
http://us.ncix.com/products/?sku=623...c&promoid=1208
I'm not electric Savvy so don't know the difference between dual and single rail. (if it matters)
New PC System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel 5960x Rampage Extreme V LGA 2011-V3 Nvidia 780's SLI (x2) ADATA 64GB ram 
Hard DriveOptical DriveCoolingOS
PCIE Samsung 250GB (OS Drive) + x2 WD Black 2TB... Lite On Blu-Ray Recorder Corsair K110 on CPU.  windows 10 
MonitorKeyboardPowerCase
2 Qnix 2710 + Crossover UHD 404k Corsair K90 Mechanical Keyboard (MX Red) Lepa 1600 watt PSU Thermaltake case (cant remember which) 
MouseMouse PadAudio
Logitech G500 SteelSeries QCK+ none yet. Wont fit. :( onboard audio 
  hide details  
Reply
New PC System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel 5960x Rampage Extreme V LGA 2011-V3 Nvidia 780's SLI (x2) ADATA 64GB ram 
Hard DriveOptical DriveCoolingOS
PCIE Samsung 250GB (OS Drive) + x2 WD Black 2TB... Lite On Blu-Ray Recorder Corsair K110 on CPU.  windows 10 
MonitorKeyboardPowerCase
2 Qnix 2710 + Crossover UHD 404k Corsair K90 Mechanical Keyboard (MX Red) Lepa 1600 watt PSU Thermaltake case (cant remember which) 
MouseMouse PadAudio
Logitech G500 SteelSeries QCK+ none yet. Wont fit. :( onboard audio 
  hide details  
Reply
post #4 of 8
Quote:
Originally Posted by shatterstar View Post
I'm not electric Savvy so don't know the difference between dual and single rail. (if it matters)
http://www.overclock.net/power-suppl...explained.html
post #5 of 8
Quote:
Originally Posted by shatterstar View Post
will this also work?
http://us.ncix.com/products/?sku=623...c&promoid=1208
I'm not electric Savvy so don't know the difference between dual and single rail. (if it matters)
that will be fine
post #6 of 8
Quote:
Originally Posted by shatterstar View Post
will this also work?
http://us.ncix.com/products/?sku=623...c&promoid=1208
I'm not electric Savvy so don't know the difference between dual and single rail. (if it matters)
Quote:
Originally Posted by ryanbob1234 View Post
that will be fine
It may actually not be fine at all since it will be used as a secondary power supply. Only its +12V rail will be used in this scenario and this may lead to crossloading issues. Depending how Antec's VP450 is built, it may not be able to handle crossloads well at all, leading to bad voltage regulation or out of spec ripple on the +12V. Note that the Corsair CX430 definitely has issues there since it's group-regulated. I would imagine a cheap unit like the Antec VP450 is also group-regulated although I've never looked inside one to confirm that one way or another. If it is group-regulated then it is no good for what you have in mind.
post #7 of 8
Thread Starter 
Quote:
Originally Posted by Shub View Post
It may actually not be fine at all since it will be used as a secondary power supply. Only its +12V rail will be used in this scenario and this may lead to crossloading issues. Depending how Antec's VP450 is built, it may not be able to handle crossloads well at all, leading to bad voltage regulation or out of spec ripple on the +12V. Note that the Corsair CX430 definitely has issues there since it's group-regulated. I would imagine a cheap unit like the Antec VP450 is also group-regulated although I've never looked inside one to confirm that one way or another. If it is group-regulated then it is no good for what you have in mind.
If I was to use some molex to 'xxx' adapters ('xxx' = other connections) such as this:

It would resolve the issue you are stating?

Also, If anyone can put up a link of a adapter I can purchase to leave a PSU on without having it connected to a motherboard I would really appreciate it. (I'm not finding it on Ebay. could be using wrong term. )
New PC System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel 5960x Rampage Extreme V LGA 2011-V3 Nvidia 780's SLI (x2) ADATA 64GB ram 
Hard DriveOptical DriveCoolingOS
PCIE Samsung 250GB (OS Drive) + x2 WD Black 2TB... Lite On Blu-Ray Recorder Corsair K110 on CPU.  windows 10 
MonitorKeyboardPowerCase
2 Qnix 2710 + Crossover UHD 404k Corsair K90 Mechanical Keyboard (MX Red) Lepa 1600 watt PSU Thermaltake case (cant remember which) 
MouseMouse PadAudio
Logitech G500 SteelSeries QCK+ none yet. Wont fit. :( onboard audio 
  hide details  
Reply
New PC System
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel 5960x Rampage Extreme V LGA 2011-V3 Nvidia 780's SLI (x2) ADATA 64GB ram 
Hard DriveOptical DriveCoolingOS
PCIE Samsung 250GB (OS Drive) + x2 WD Black 2TB... Lite On Blu-Ray Recorder Corsair K110 on CPU.  windows 10 
MonitorKeyboardPowerCase
2 Qnix 2710 + Crossover UHD 404k Corsair K90 Mechanical Keyboard (MX Red) Lepa 1600 watt PSU Thermaltake case (cant remember which) 
MouseMouse PadAudio
Logitech G500 SteelSeries QCK+ none yet. Wont fit. :( onboard audio 
  hide details  
Reply
post #8 of 8
No adapter can solve the issue I'm talking about. You may or may not know that PSUs are AC to DC converters that deliver three different voltages to modern computers: +3.3V, +5V and +12V. There are a couple of other rails but let's leave them out of this equation for the sake of simplicity.
Normally, a PSU is connected to the entire computer via the motherboard, and its +3.3V and +5V rails are being used by various parts of the computer (RAM, chipset, hard drive circuitry, etc.). When you use a PSU like you're planning on doing however, you're only drawing power from the +12V rail since nothing is connected to the +3.3V and +5V rails. That creates an imbalance in how power is drawn from the PSU, and that imbalance is called a crossload. Most cheaper PSUs use a design called group regulation which precludes the PSU from working normally when crossloaded.
The only way you can get around this is by putting some kind of load on the +3.3V and/or +5V rails. How much load is required depends on the unit you're using.
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