Overclock.net › Forums › Case Mods & Cases › Builds & Case Mods › Case Mods › wiring leds to your psu
New Posts  All Forums:Forum Nav:

wiring leds to your psu

post #1 of 16
Thread Starter 
i know how to set up resistors and such, but i just dont understand how to actually connect the molex to the led strip.

http://metku.net/mods/ledcalc/series_photo.png

theres a pic of the wiring, do i just take a female molex fan connector like this one and cut off the other end of the connector and use the in/out for the power?


i have an idea of what i am doing, i just need to know how to connect the psu molex to the series of LEDs. please help
Shogun
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 Prescott 650 @ 4.01 Gigabyte 965P-DS3 7900GTKO 1 GB PC-5300 (2x512) 
Hard DriveOSMonitorKeyboard
160GB SATA XP SP2 Professional Dell 17" Flat Panel Saitek Eclipse 
PowerCaseMouseMouse Pad
ThermalTake 600W Raidmax Sagitta Logitech MX-518 Steel-Pad QcK 
  hide details  
Reply
Shogun
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 Prescott 650 @ 4.01 Gigabyte 965P-DS3 7900GTKO 1 GB PC-5300 (2x512) 
Hard DriveOSMonitorKeyboard
160GB SATA XP SP2 Professional Dell 17" Flat Panel Saitek Eclipse 
PowerCaseMouseMouse Pad
ThermalTake 600W Raidmax Sagitta Logitech MX-518 Steel-Pad QcK 
  hide details  
Reply
post #2 of 16
Yellow wire: 12v
Red wire: 5v
Black wire: Negative

You can connect it however you want just as long as you get the polarity and voltage you need.
Main Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K Asus P8P67 EVO GTX 980 16GB DDR3 1866mhz 
Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
KeyboardPowerCaseMouse
Logitech Orion Spark Capstone 750w CM Storm Scout Logitech G700s 
  hide details  
Reply
Main Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K Asus P8P67 EVO GTX 980 16GB DDR3 1866mhz 
Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
KeyboardPowerCaseMouse
Logitech Orion Spark Capstone 750w CM Storm Scout Logitech G700s 
  hide details  
Reply
post #3 of 16
Quote:
Originally Posted by Fishie36 View Post
Yellow wire: 12v
Red wire: 5v
Black wire: Negative
Black = GROUND
A PSU has rails that are negative in reference to ground, so don't get those confused.
Reincarnate
(13 items)
 
  
CPUMotherboardGraphicsRAM
3600+ Brisbane CAALG 0712 @2983MHz DFI LP DK 790GX-M2RS EVGA 7900GS 675/1700 vmod 2x2GB G.Skill PK 1066MHz 
Hard DriveOSPower
WD 1TB Black, WD250GB, WD250GB external Vista Ultimate OCZ 500W Modular 
  hide details  
Reply
Reincarnate
(13 items)
 
  
CPUMotherboardGraphicsRAM
3600+ Brisbane CAALG 0712 @2983MHz DFI LP DK 790GX-M2RS EVGA 7900GS 675/1700 vmod 2x2GB G.Skill PK 1066MHz 
Hard DriveOSPower
WD 1TB Black, WD250GB, WD250GB external Vista Ultimate OCZ 500W Modular 
  hide details  
Reply
post #4 of 16
Thread Starter 
but i thought that if you took a molex connector (12v, right?) and plugged it into that thing i showed up there, woudlnt that make the red wire 12 volts?
Shogun
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 Prescott 650 @ 4.01 Gigabyte 965P-DS3 7900GTKO 1 GB PC-5300 (2x512) 
Hard DriveOSMonitorKeyboard
160GB SATA XP SP2 Professional Dell 17" Flat Panel Saitek Eclipse 
PowerCaseMouseMouse Pad
ThermalTake 600W Raidmax Sagitta Logitech MX-518 Steel-Pad QcK 
  hide details  
Reply
Shogun
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 Prescott 650 @ 4.01 Gigabyte 965P-DS3 7900GTKO 1 GB PC-5300 (2x512) 
Hard DriveOSMonitorKeyboard
160GB SATA XP SP2 Professional Dell 17" Flat Panel Saitek Eclipse 
PowerCaseMouseMouse Pad
ThermalTake 600W Raidmax Sagitta Logitech MX-518 Steel-Pad QcK 
  hide details  
Reply
post #5 of 16
I can't tell which way the plug is oriented in that picture. It will either +5 or +12. The colors often lose their voltage meaning when only 2 wires are present; red being positive, black being common (usually 0v in reference to ground)
Reincarnate
(13 items)
 
  
CPUMotherboardGraphicsRAM
3600+ Brisbane CAALG 0712 @2983MHz DFI LP DK 790GX-M2RS EVGA 7900GS 675/1700 vmod 2x2GB G.Skill PK 1066MHz 
Hard DriveOSPower
WD 1TB Black, WD250GB, WD250GB external Vista Ultimate OCZ 500W Modular 
  hide details  
Reply
Reincarnate
(13 items)
 
  
CPUMotherboardGraphicsRAM
3600+ Brisbane CAALG 0712 @2983MHz DFI LP DK 790GX-M2RS EVGA 7900GS 675/1700 vmod 2x2GB G.Skill PK 1066MHz 
Hard DriveOSPower
WD 1TB Black, WD250GB, WD250GB external Vista Ultimate OCZ 500W Modular 
  hide details  
Reply
post #6 of 16
well, the LED's drop about .7 Volts each, so you could power up to 17 LED's with a 12V source. The resistor is there to take up any of the voltage that the LED's don't use. So...yes, just hook up a volatage source to one end, ground to the other, make sure you have enough voltage for the LED's (however many you have), and turn it on. If you don't know how to tell which side of the LED is positive or not, or need to know how to tell, then PM me.
Building Now
(13 items)
 
  
CPUMotherboardGraphicsRAM
E4300 Asus P5B Deluxe Sapphire x850xt Corsair XMS2 
Hard DriveOSMonitorPower
Seagate 200 GB + Backup Vista Home Premium 21" LCD Rosewill 500W 
Case
Custom 
  hide details  
Reply
Building Now
(13 items)
 
  
CPUMotherboardGraphicsRAM
E4300 Asus P5B Deluxe Sapphire x850xt Corsair XMS2 
Hard DriveOSMonitorPower
Seagate 200 GB + Backup Vista Home Premium 21" LCD Rosewill 500W 
Case
Custom 
  hide details  
Reply
post #7 of 16
red=5v
yellow=12v
black=GND

so i would just hook up yellow at one end, and black on the other for a potential difference of 12V

if the red wire on that connector hooks up to the yellow of a molex from PSU then its 12v. if it hooks up to a red of a molex from PSU than its 5V
    
CPUMotherboardGraphicsRAM
E6400 @ 3.6 GHz (450X8) GA P965 S3 7600GT 2GB OCZ Gold @ DDR 2 900 5-5-5-15 
Hard DriveOptical DriveMonitorPower
320GB Maxtor SATA2, 160 for XP, 160 for Slackware DVD+-RW EIDE 21" CRT by Sun Microsystems 680W Echostar 22A on 12V rail 
CaseMouse
Rosewill Black small Mid-T G5 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E6400 @ 3.6 GHz (450X8) GA P965 S3 7600GT 2GB OCZ Gold @ DDR 2 900 5-5-5-15 
Hard DriveOptical DriveMonitorPower
320GB Maxtor SATA2, 160 for XP, 160 for Slackware DVD+-RW EIDE 21" CRT by Sun Microsystems 680W Echostar 22A on 12V rail 
CaseMouse
Rosewill Black small Mid-T G5 
  hide details  
Reply
post #8 of 16
Indeed.

If you want bright ones they usually come in 3v flavors so you can wire four in a series and you won't have to use a resistor. Then all you have to do is connect up the short end to black and the long to yellow or red depending on voltage.
ChemX1200
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.6Ghz DFI UT X48 T2R VisionTek HD4870 OCZ Titanium DDR800 (2x 2Gb) 
Hard DriveOptical DriveOSMonitor
3x WD RE3 500Gb RAID0 On Areca1210 1x Pioneer BD-RW 1x Asus DVD-RW Lightscribe Windows 7 Ultimate X64 Dell 24" G2410 LED LCD 
KeyboardPowerCaseMouse
Unicomp Customizer 104 Corsair 850W Mod. Cables Antec 1200 Logitech Performance MX 
  hide details  
Reply
ChemX1200
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6700 @ 3.6Ghz DFI UT X48 T2R VisionTek HD4870 OCZ Titanium DDR800 (2x 2Gb) 
Hard DriveOptical DriveOSMonitor
3x WD RE3 500Gb RAID0 On Areca1210 1x Pioneer BD-RW 1x Asus DVD-RW Lightscribe Windows 7 Ultimate X64 Dell 24" G2410 LED LCD 
KeyboardPowerCaseMouse
Unicomp Customizer 104 Corsair 850W Mod. Cables Antec 1200 Logitech Performance MX 
  hide details  
Reply
post #9 of 16
I'd still use a resistor just to be safe with that. Otherwise you could change the voltage on the rail of the PSU, which would affect anything else hooked up to that rail. (If it turned out to be 11.5V across the LED's instead of 12.
Building Now
(13 items)
 
  
CPUMotherboardGraphicsRAM
E4300 Asus P5B Deluxe Sapphire x850xt Corsair XMS2 
Hard DriveOSMonitorPower
Seagate 200 GB + Backup Vista Home Premium 21" LCD Rosewill 500W 
Case
Custom 
  hide details  
Reply
Building Now
(13 items)
 
  
CPUMotherboardGraphicsRAM
E4300 Asus P5B Deluxe Sapphire x850xt Corsair XMS2 
Hard DriveOSMonitorPower
Seagate 200 GB + Backup Vista Home Premium 21" LCD Rosewill 500W 
Case
Custom 
  hide details  
Reply
post #10 of 16
Quote:
Originally Posted by TailChaser View Post
I'd still use a resistor just to be safe with that. Otherwise you could change the voltage on the rail of the PSU, which would affect anything else hooked up to that rail. (If it turned out to be 11.5V across the LED's instead of 12.
You could use a diode instead
#well
(18 items)
 
Lenovo L530
(8 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H Sapphire RX 580 Corsair CMX8GX3M2A2000C9 
Hard DriveOptical DriveCoolingOS
Samsung 840 EVO Generic DVD±RW Burner Noctua NH-D14 Windows 10 
MonitorMonitorKeyboardPower
Dell U2711 Samsung SyncMaster 2233 Ducky DK9008 Overclock.net Edition, Cherry MX B... Corsair TX850 
CaseMouseMouse PadAudio
Fractal Design Core 2500 Logitech G303 QPAD HeatoN L M-Audio Fast Track USB 
AudioAudio
Beyerdynamic DT-770 80 Ohm AntLion ModMic v3 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
Hard DriveOptical DriveOSMonitor
500GB DVD-+RW Windows 7 Professional 1600x900 
  hide details  
Reply
#well
(18 items)
 
Lenovo L530
(8 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H Sapphire RX 580 Corsair CMX8GX3M2A2000C9 
Hard DriveOptical DriveCoolingOS
Samsung 840 EVO Generic DVD±RW Burner Noctua NH-D14 Windows 10 
MonitorMonitorKeyboardPower
Dell U2711 Samsung SyncMaster 2233 Ducky DK9008 Overclock.net Edition, Cherry MX B... Corsair TX850 
CaseMouseMouse PadAudio
Fractal Design Core 2500 Logitech G303 QPAD HeatoN L M-Audio Fast Track USB 
AudioAudio
Beyerdynamic DT-770 80 Ohm AntLion ModMic v3 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
Hard DriveOptical DriveOSMonitor
500GB DVD-+RW Windows 7 Professional 1600x900 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Case Mods
Overclock.net › Forums › Case Mods & Cases › Builds & Case Mods › Case Mods › wiring leds to your psu