Overclock.net › Forums › Case Mods & Cases › Builds & Case Mods › Case Mods › Cathodes wont fully light up
New Posts  All Forums:Forum Nav:

Cathodes wont fully light up - Page 2

post #11 of 27
No, check your power wires (for polarity) and ALL connections (weak solder joint for example). Its caused by a power leak somewhere. One of my Sunbeam Rheobus units had a bad channel that wouldnt put out 12v so i plugged the invertor straight to the PSU and all was fine. Ive even used custom power wires and extensions with no problems.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
5000+ BE 3.4G @1.447v DFI 790FX-M2RS Sapphire 3850 8G Corsair XMS2 DHX 
Hard DriveOSPower
Seagate Win7 Ultimate 64bit Antec TPQ-850 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
5000+ BE 3.4G @1.447v DFI 790FX-M2RS Sapphire 3850 8G Corsair XMS2 DHX 
Hard DriveOSPower
Seagate Win7 Ultimate 64bit Antec TPQ-850 
  hide details  
Reply
post #12 of 27
I myself have been using cathodes and LED and all sorts of lighting in cars for years. And I myself have NEVER had any problems with extending the wires. The cathodes in my Trailblazer are extended like 12inches and their perfectly fine. As stated a little earlier check your power AND ground wires along with connections.

check your PSU's power output with a multimeter on the connectors you are using. And also check the power output of the ballast.( connect the ballast to the PSU and test the female connectors you plug the cathodes into with a multimeter for power)

It might be possible you have a bad ballast too.
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
post #13 of 27
Quote:
Originally Posted by mwl5apv View Post
I myself have been using cathodes and LED and all sorts of lighting in cars for years. ...
The automotive industry uses different fluorescent lamps than what is used in PCs. PCs use CCFLs (cold cathode fluorescent lamps); these have an inverter and do not use a ballast.


With CCFLs you can extend the wiring on the DC side of the inverter without any troubles at all; but the AC side is very sensitive and modifications to the wiring will typically result in degraded performance.
RAD GT
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K MSI P67A-GD65 eVga GeForce GTX 480 Hydro Copper G.Skill Ripjaws X DDR3-1066 4x4Gb 
Hard DriveOptical DriveCoolingOS
2x 500Gb SATA | 750Gb SATA | 1Tb SATA LG SATA DVD-RW DangerDen Water Windows 7 Ultimate X64 
MonitorMonitorPower
AOC 2236VW 1920x1080 22" WS AOC 2236VW 1920x1080 22" WS SilverStone Strider ST850 
  hide details  
Reply
RAD GT
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K MSI P67A-GD65 eVga GeForce GTX 480 Hydro Copper G.Skill Ripjaws X DDR3-1066 4x4Gb 
Hard DriveOptical DriveCoolingOS
2x 500Gb SATA | 750Gb SATA | 1Tb SATA LG SATA DVD-RW DangerDen Water Windows 7 Ultimate X64 
MonitorMonitorPower
AOC 2236VW 1920x1080 22" WS AOC 2236VW 1920x1080 22" WS SilverStone Strider ST850 
  hide details  
Reply
post #14 of 27
well the cold cathodes seem to be all the same. Ive used computer ones in cars and car ones in computers. And the ballasts/inverters(or whatever you actually call them) all interchanged with eachother with no problem. And the wires I extended were the once coming out of the cathode itself.
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
post #15 of 27
Quote:
Originally Posted by radodrill View Post
The automotive industry uses different fluorescent lamps than what is used in PCs. PCs use CCFLs (cold cathode fluorescent lamps); these have an inverter and do not use a ballast.


With CCFLs you can extend the wiring on the DC side of the inverter without any troubles at all; but the AC side is very sensitive and modifications to the wiring will typically result in degraded performance.
Im not sure where you get the 'auto industry' part from, theres no such thing as a fluorescent car bulb. And on CCFL's, sorry but youre dead wrong
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
5000+ BE 3.4G @1.447v DFI 790FX-M2RS Sapphire 3850 8G Corsair XMS2 DHX 
Hard DriveOSPower
Seagate Win7 Ultimate 64bit Antec TPQ-850 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
5000+ BE 3.4G @1.447v DFI 790FX-M2RS Sapphire 3850 8G Corsair XMS2 DHX 
Hard DriveOSPower
Seagate Win7 Ultimate 64bit Antec TPQ-850 
  hide details  
Reply
post #16 of 27
Quote:
Originally Posted by Furball Zen View Post
Im not sure where you get the 'auto industry' part from, theres no such thing as a fluorescent car bulb. And on CCFL's, sorry but youre dead wrong
thank you.....
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
My System
(19 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 Asus Crosshair V Formula EVGA GTX 770 SC ACX 8Gb Corsair Vengeance Pro 1866 
Hard DriveHard DriveHard DriveHard Drive
Plextor M5S 128Gb(OS) Plextor M5S 256Gb(RAID0) Plextor M5S 256Gb(RAID0) Western Digital Cavair Green 2Tb 
Optical DriveCoolingOSMonitor
ASUS 24x DVD RW Corsair H80i Windows 7 64-bit LG 24MP56HQ-P IPS 
MonitorKeyboardPowerCase
Samsung SyncMaster B2230 Corsair K70 Corsair TX650 V2 Cooler Master CM Storm Trooper 
MouseAudio
Razer DeathAdder 3.5G Panasonic 500w stereo 
  hide details  
Reply
post #17 of 27
Quote:
Originally Posted by Furball Zen View Post
Im not sure where you get the 'auto industry' part from, theres no such thing as a fluorescent car bulb. And on CCFL's, sorry but youre dead wrong
I beg to differ.

There are 2 main types of fluorescent lights, regular fluorescent (incluing CFLs) and Cold Cathode fluorescent; the vast majority of lights sold in under-glow kits (automotive) and home lighting are regular fluorescent lights, while fluorescent light kits for PC lighting are almost exclusively the Cold Cathode type.

There are major differences in the technologies used in regular fluorescent vs cold cathodes.
  • Regular fluorescent lights have a filament at each end that heats up the gas inside the tube to vaporize the mercury allowing the gas to carry current and emit electrons as light energy. These lights require a ballast to increase the frequency of the AC power (generally 50-60 Hz) such that the bulb can operate more efficiently. In cars there is typically an inverter to generate a 120VAC @ 60Hz supply voltage (from the 12VDC) then the ballast in the light to increase the frequency.
  • Cold Cathodes on the other hand do not heat the gas inside the tube, but rather rely on a large voltage difference (typically 600-800 V-AC) across the tube to discharge the electrons. CCFLs operate at high voltage high frequency AC; if a DC power supply is used an inverter is necessary to create the voltage supply to the lamp, with an AC power supply a transformer and ballast would be necessary.

As I have said before, CCFLs are very susceptible to losses when modifying the wiring between the inverter and the light tube. The reason is that they use high frequency AC; this results in the current flowing on the surface of the wire (rather than through the core) this non-uniform current flow distribution (caused by the high frequency power) essentially increases the AC resistance of the wire.
If you extend the wiring to the bulb; you are creating a higher voltage drop across the wires leaving a lower voltage potential across the light tube. Since the CCFLs rely on a voltage potential to emit light, if the actual voltage potential is less than what it needs (from the wiring being too long) the lamp will not be fully lit.

Edit: Note: the color of light emitted by fluorescent lights is dependent on the composition of the phosphorescent coating on the inside of the light tube.
Edited by radodrill - 4/16/11 at 7:23pm
RAD GT
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K MSI P67A-GD65 eVga GeForce GTX 480 Hydro Copper G.Skill Ripjaws X DDR3-1066 4x4Gb 
Hard DriveOptical DriveCoolingOS
2x 500Gb SATA | 750Gb SATA | 1Tb SATA LG SATA DVD-RW DangerDen Water Windows 7 Ultimate X64 
MonitorMonitorPower
AOC 2236VW 1920x1080 22" WS AOC 2236VW 1920x1080 22" WS SilverStone Strider ST850 
  hide details  
Reply
RAD GT
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K MSI P67A-GD65 eVga GeForce GTX 480 Hydro Copper G.Skill Ripjaws X DDR3-1066 4x4Gb 
Hard DriveOptical DriveCoolingOS
2x 500Gb SATA | 750Gb SATA | 1Tb SATA LG SATA DVD-RW DangerDen Water Windows 7 Ultimate X64 
MonitorMonitorPower
AOC 2236VW 1920x1080 22" WS AOC 2236VW 1920x1080 22" WS SilverStone Strider ST850 
  hide details  
Reply
post #18 of 27
Well, youre still wrong... its under car NEON (and the color depends on the added inert gas along with the neon gas) Except now they use LED's, but doesnt matter, no car bulbs were ever fluorescent as they require 120VAC and up. They do still have neon bulbs for panel indicators, but they arent very efficient.

And voltage always runs on the surface of the wire, never in the core regardless of AC or DC
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
5000+ BE 3.4G @1.447v DFI 790FX-M2RS Sapphire 3850 8G Corsair XMS2 DHX 
Hard DriveOSPower
Seagate Win7 Ultimate 64bit Antec TPQ-850 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
5000+ BE 3.4G @1.447v DFI 790FX-M2RS Sapphire 3850 8G Corsair XMS2 DHX 
Hard DriveOSPower
Seagate Win7 Ultimate 64bit Antec TPQ-850 
  hide details  
Reply
post #19 of 27
Quote:
Originally Posted by Furball Zen View Post
Well, youre still wrong... its under car NEON (and the color depends on the added inert gas along with the neon gas)
Neon lights are essentially a form of fluorescent light; they simply use the phosphorescent properties of the neon gas to produce light rather than relying solely on a phosphorescent coating on the tube, but the operating principle is the same as a regular fluorescent lights where the gas mixture is heated to the point where current flows through the gas releasing electrons to excite the phosphorescent particles. While the color of neon lights is partially controlled by the gas mixture; they typically use a coating on the inside of the glass tube to achieve different colors and to enhance the quality of the light output.


Quote:
Originally Posted by Furball Zen View Post
no car bulbs were ever fluorescent as they require 120VAC and up.
Wrong logic; the input voltage signal (voltage, AC or DC, AC frequency) are irrelevant since you can get any desired voltage signal by using a combination of transformers, inverters, ballasts, etc.

Basically all standard car lights (i.e. headlights, indicators, etc) use 12VDC to simplify the wiring by not requiring advanced circuitry to achieve different voltage signals.
Underglow neons actually require a "transformer" (actually an inverter), which converts the 12VDC to 9500VAC


Quote:
Originally Posted by Furball Zen View Post
And voltage always runs on the surface of the wire, never in the core regardless of AC or DC
DC current flows uniformly throughout the entire cross-section of the wire. AC produces waves of electromagnetic radiation that cancels the propagation of current through the center of the conductor; the higher the frequency, the more pronounced this effect is.
RAD GT
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K MSI P67A-GD65 eVga GeForce GTX 480 Hydro Copper G.Skill Ripjaws X DDR3-1066 4x4Gb 
Hard DriveOptical DriveCoolingOS
2x 500Gb SATA | 750Gb SATA | 1Tb SATA LG SATA DVD-RW DangerDen Water Windows 7 Ultimate X64 
MonitorMonitorPower
AOC 2236VW 1920x1080 22" WS AOC 2236VW 1920x1080 22" WS SilverStone Strider ST850 
  hide details  
Reply
RAD GT
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K MSI P67A-GD65 eVga GeForce GTX 480 Hydro Copper G.Skill Ripjaws X DDR3-1066 4x4Gb 
Hard DriveOptical DriveCoolingOS
2x 500Gb SATA | 750Gb SATA | 1Tb SATA LG SATA DVD-RW DangerDen Water Windows 7 Ultimate X64 
MonitorMonitorPower
AOC 2236VW 1920x1080 22" WS AOC 2236VW 1920x1080 22" WS SilverStone Strider ST850 
  hide details  
Reply
post #20 of 27
You guys should really pay attention to Radodrill. You might be surprised what you can learn.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Case Mods
Overclock.net › Forums › Case Mods & Cases › Builds & Case Mods › Case Mods › Cathodes wont fully light up