Overclock.net › Forums › Components › Power Supplies › [Mod] 350W ATX to shallow 150W PicoPSU
New Posts  All Forums:Forum Nav:

[Mod] 350W ATX to shallow 150W PicoPSU

post #1 of 6
Thread Starter 
My HTPC hides in my closet, in a Cooler Master Elite 120 Advanced which supports full ATX PSUs.



Before:
the 5 1/4 bay was filled with all the power supply excess cables (el' crappo old 350W PSU i had kicking around). PSU was noisy, and generated dirty power.



I planned on buying a new one, but I only needed 100W max, and I had a 150W PicoPSU and an 120V to 12V switching power supply already

Let the Mod commence!

Prep PSU

Remove the old PCB, wires, and fan. Solder connector for new PSU and 3-pin fan header. Pop out stand-offs.

*WARNING: YOU MAY DIE. Long time ago, rookie me, zapped myself working inside a PSU, painful, seriously dangerous. Always discharge capacitors / know what your doing.*



Looks square enough right?

Metalwork is not my strongpoint.. its hard to bend box shape without good tools / profiles. Drilled some new holes for the smaller PCB.



Finished product

The cable cleanup is incredible, no more 24pin cable!



Getting those damn stand-offs back in was a PITA. Vice grip pliers helped, and a dab of hot glue to prevent any slip.



Power Consumption Results

Before:
Idle: 51w
Compilation: 79w
OpenGL glmark2: 59w
Movie (1080p30): 61w

After:
Idle: 33w
Compilation: 56w
OpenGL glmark2: 39w
Movie (1080p30): 42w

That saves 150kWH/year or $15 in hydro. Proof bigger PSU != better (well, not fair as 350W PSU was old), I had similarly bad results with a 600W OCZ PSU and a 15W CPU though.

Final Case Pictures

So much room, I could put a tower cooler if I wanted, but CPU is only 35W. Now I can fit my BluRay drive, way better cable management, and long term health of components improved.





Specs: http://www.overclock.net/lists/display/view/id/6073141/version/6073143
Edited by kevinf - 1/9/15 at 10:30am
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
post #2 of 6
Thread Starter 
ugh.. not sure if bad coincidence, my rear USB ports are fried, anything connected prevents my computer from booting properly, and if plugged in later, deadlocks the OS. Front USB ports work. Either PSU is being silly, or i static discharged the USB ports (which don't have a rear-plate for this Mobo).
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
post #3 of 6
I can't say for certain you didn't fry the ports but I know some CM cases have this weird USB grounding issue. I first heard it about it when a guy complained that his ATCS 840 he had the same issues you're having. His solution was to make sure he was touching a bare metal part of the case when plugging or unplugging USB devices. This effectively uses your body as ground. In my HAF 912 I have the same issues, albeit with my front panel, but the solution is the same. Worth a try to see if that's the culprit considering how easy it is. You may have some metal touching in your new PSU enclosure that is causing the short.
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
post #4 of 6
Thread Starter 
Quote:
Originally Posted by TH3_H4NGMAN View Post

I can't say for certain you didn't fry the ports but I know some CM cases have this weird USB grounding issue. I first heard it about it when a guy complained that his ATCS 840 he had the same issues you're having. His solution was to make sure he was touching a bare metal part of the case when plugging or unplugging USB devices. This effectively uses your body as ground. In my HAF 912 I have the same issues, albeit with my front panel, but the solution is the same. Worth a try to see if that's the culprit considering how easy it is. You may have some metal touching in your new PSU enclosure that is causing the short.

Thanks for the ideas smile.gif I was thinking of using some metal foil tape to bind the USB ports to the inside of the case. Found some at work.

failing that, I could use an internal header and run the wires outside the back of the case. cable sticking out the front is apt to get broken off by my closet door.
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
post #5 of 6
Thread Starter 
(late) UPDATE: I figured out the grounding issue. DON'T USE BLACK PAINTED SCREWS INCLUDED WITH CASE!

Notice in the attached picture, I have continuity between ODD and PSU GND.



Unfortunately, I did NOT have continuity with PSU metal and PSU GND!



I did some grinding.... still didn't help.



Switching PSU screws to standard bare metal worked perfectly.
Edited by kevinf - 1/26/16 at 8:15pm
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
OC'in beast
(21 items)
 
  
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
  hide details  
Reply
post #6 of 6
Quote:
Originally Posted by kevinf View Post


Ha ha I love it, that's a crowning work of ghetto-modding. thumb.gif

Quote:
Originally Posted by kevinf View Post

... don't have a rear-plate for this Mobo ...

Which means your rear USB ports' shields were left ungrounded. That's the function of those pesky tabs on rear plates, to ground all rear shields to case metal:





Quote:
Originally Posted by TH3_H4NGMAN View Post

... this weird USB grounding issue ... In my HAF 912 I have the same issues, albeit with my front panel ...

The HAF 912 (like many other cases) has the front USB ports' shields 'floating' on plastic, that is, not grounded to the metal of the case. Ungrounded USB shields are way more vulnerable to ESD whenever we insert any USB gadget, with nasty results ranging from frozen comps to fried south bridges.

Here's how I grounded the floating front USB ports' shields on my HAF 912 Plus:

HAL-9011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 960T X6 4.1GHz ASUS M4A89GTD Pro Radeon HD 6870 16 GB DDR3 1600MHz 8·8·8·24 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 4 128GB OCZ Vertex 2 120GB WD Caviar Black 1TB LG DVD-RW 
CoolingCoolingOSOS
Noctua NH-D14 Accelero S1 R.2 + 2x NF-F12 Se7en x64 Se7en x32 
PowerCase
Antec TP-650W CM HAF 912 + 
  hide details  
Reply
HAL-9011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 960T X6 4.1GHz ASUS M4A89GTD Pro Radeon HD 6870 16 GB DDR3 1600MHz 8·8·8·24 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 4 128GB OCZ Vertex 2 120GB WD Caviar Black 1TB LG DVD-RW 
CoolingCoolingOSOS
Noctua NH-D14 Accelero S1 R.2 + 2x NF-F12 Se7en x64 Se7en x32 
PowerCase
Antec TP-650W CM HAF 912 + 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › [Mod] 350W ATX to shallow 150W PicoPSU