Overclock.net › Forums › Graphics Cards › NVIDIA › Resistance and Voltage Measurement?
New Posts  All Forums:Forum Nav:

Resistance and Voltage Measurement? - Page 2

post #11 of 16
Thread Starter 
Do you measure voltage with the vid card in and the computer on and running?

Just checkin cuz I need to test the voltage on my GPU and mem.
Sandy Beach
(14 items)
 
  
CPUMotherboardGraphicsRAM
2500K @ 4.5GHz/1.32v P8P67-PRO [BIOS 1704] MSI GTX780 TFIV G.Skill 4x4GB DDR3-1600 (8-8-8-24-1T) 
Hard DriveCoolingOSMonitor
512GB 850EVO, WD Black 1TB & ES.2 1TB & Cuda 3TB XSPC Rasa w/ RS240 Windows 7 Ultimate x64 Dell SX2210 
KeyboardPowerCaseMouse
Filco Ninja w/ Browns SilverStone Strider Plus 750W [Sleeved] Custom Stacker 832 Logitech G500 
Mouse Pad
Steelseries 4HD 
  hide details  
Reply
Sandy Beach
(14 items)
 
  
CPUMotherboardGraphicsRAM
2500K @ 4.5GHz/1.32v P8P67-PRO [BIOS 1704] MSI GTX780 TFIV G.Skill 4x4GB DDR3-1600 (8-8-8-24-1T) 
Hard DriveCoolingOSMonitor
512GB 850EVO, WD Black 1TB & ES.2 1TB & Cuda 3TB XSPC Rasa w/ RS240 Windows 7 Ultimate x64 Dell SX2210 
KeyboardPowerCaseMouse
Filco Ninja w/ Browns SilverStone Strider Plus 750W [Sleeved] Custom Stacker 832 Logitech G500 
Mouse Pad
Steelseries 4HD 
  hide details  
Reply
post #12 of 16
Quote:
Originally Posted by kidwolf909
Does it matter which contact, red or black, is on which side of the resistor or does it just read it the same either way? And I check resistance with the GPU out of the case with no power correct?
Resistance is not directional, so it does not matter. Also these are passive devices no need to power on the GPU - resistance is a function of the conducting material only. The Ohmeter itself will apply a current source to solve the resistance taking into account its own impedance.
Lateralus
(16 items)
 
Camera Gear
(8 items)
 
CPUMotherboardGraphicsRAM
i7-3770K Gigabyte UD5H EVGA GTX980 SC GAMING 4GB ACX 2.0+ G.Skill Ripjaws X series 16GB 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro 256GB Samsung 850 EVO 500GB 3 x WD Black 1TB ASUS 
OSMonitorKeyboardPower
Windows 7 64-bit Pro Dell U2412M Saitek Eclipse Seasonic X-850 
CaseMouseMouse PadAudio
Lian-Li PC-A70F Logitech G5 Icemat Schiit Bifrost Uber -> MF X-Can v3 -> Senn HD650  
  hide details  
Reply
Lateralus
(16 items)
 
Camera Gear
(8 items)
 
CPUMotherboardGraphicsRAM
i7-3770K Gigabyte UD5H EVGA GTX980 SC GAMING 4GB ACX 2.0+ G.Skill Ripjaws X series 16GB 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro 256GB Samsung 850 EVO 500GB 3 x WD Black 1TB ASUS 
OSMonitorKeyboardPower
Windows 7 64-bit Pro Dell U2412M Saitek Eclipse Seasonic X-850 
CaseMouseMouse PadAudio
Lian-Li PC-A70F Logitech G5 Icemat Schiit Bifrost Uber -> MF X-Can v3 -> Senn HD650  
  hide details  
Reply
post #13 of 16
Quote:
Originally Posted by kidwolf909
Do you measure voltage with the vid card in and the computer on and running?

Just checkin cuz I need to test the voltage on my GPU and mem.

The video card must be connected to its power source in order to have any potential on the video card PCB. To measure the voltage you will need to measure relative to a VSS (ground) source (preferably on the PCB). For comparo, always use the same ground source.
Lateralus
(16 items)
 
Camera Gear
(8 items)
 
CPUMotherboardGraphicsRAM
i7-3770K Gigabyte UD5H EVGA GTX980 SC GAMING 4GB ACX 2.0+ G.Skill Ripjaws X series 16GB 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro 256GB Samsung 850 EVO 500GB 3 x WD Black 1TB ASUS 
OSMonitorKeyboardPower
Windows 7 64-bit Pro Dell U2412M Saitek Eclipse Seasonic X-850 
CaseMouseMouse PadAudio
Lian-Li PC-A70F Logitech G5 Icemat Schiit Bifrost Uber -> MF X-Can v3 -> Senn HD650  
  hide details  
Reply
Lateralus
(16 items)
 
Camera Gear
(8 items)
 
CPUMotherboardGraphicsRAM
i7-3770K Gigabyte UD5H EVGA GTX980 SC GAMING 4GB ACX 2.0+ G.Skill Ripjaws X series 16GB 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro 256GB Samsung 850 EVO 500GB 3 x WD Black 1TB ASUS 
OSMonitorKeyboardPower
Windows 7 64-bit Pro Dell U2412M Saitek Eclipse Seasonic X-850 
CaseMouseMouse PadAudio
Lian-Li PC-A70F Logitech G5 Icemat Schiit Bifrost Uber -> MF X-Can v3 -> Senn HD650  
  hide details  
Reply
post #14 of 16
Voltage = while the card is on...(direction matters)

Resistance = while the card is out of the case.(direction does not matter. Touch the ENDS of the resistor..shade the TOP..from one end to the other)

Please, please, please!!! Someone blew up his card by measuring resistance while it was on...lol. Good luck.

(if you hook up the leads backwards...you'll get a - reading(or 0, depending on the multimeter you use). So you'll know. Just flip it around.
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
post #15 of 16
Thread Starter 
Quote:
Originally Posted by Sideburns
Voltage = while the card is on...(direction matters)

Resistance = while the card is out of the case.(direction does not matter. Touch the ENDS of the resistor..shade the TOP..from one end to the other)

Please, please, please!!! Someone blew up his card by measuring resistance while it was on...lol. Good luck.

(if you hook up the leads backwards...you'll get a - reading(or 0, depending on the multimeter you use). So you'll know. Just flip it around.
Alright thanks guys, I'm glad somebody finally responded lol!

I'm gonna measure the vgpu and vmem right now with the + lead on each voltage register and the - lead on a grounded part of the GPU (bracket most likely)...

Everything sound good with this plan? lol
Sandy Beach
(14 items)
 
  
CPUMotherboardGraphicsRAM
2500K @ 4.5GHz/1.32v P8P67-PRO [BIOS 1704] MSI GTX780 TFIV G.Skill 4x4GB DDR3-1600 (8-8-8-24-1T) 
Hard DriveCoolingOSMonitor
512GB 850EVO, WD Black 1TB & ES.2 1TB & Cuda 3TB XSPC Rasa w/ RS240 Windows 7 Ultimate x64 Dell SX2210 
KeyboardPowerCaseMouse
Filco Ninja w/ Browns SilverStone Strider Plus 750W [Sleeved] Custom Stacker 832 Logitech G500 
Mouse Pad
Steelseries 4HD 
  hide details  
Reply
Sandy Beach
(14 items)
 
  
CPUMotherboardGraphicsRAM
2500K @ 4.5GHz/1.32v P8P67-PRO [BIOS 1704] MSI GTX780 TFIV G.Skill 4x4GB DDR3-1600 (8-8-8-24-1T) 
Hard DriveCoolingOSMonitor
512GB 850EVO, WD Black 1TB & ES.2 1TB & Cuda 3TB XSPC Rasa w/ RS240 Windows 7 Ultimate x64 Dell SX2210 
KeyboardPowerCaseMouse
Filco Ninja w/ Browns SilverStone Strider Plus 750W [Sleeved] Custom Stacker 832 Logitech G500 
Mouse Pad
Steelseries 4HD 
  hide details  
Reply
post #16 of 16
Quote:
Originally Posted by kidwolf909
Alright thanks guys, I'm glad somebody finally responded lol!

I'm gonna measure the vgpu and vmem right now with the + lead on each voltage register and the - lead on a grounded part of the GPU (bracket most likely)...

Everything sound good with this plan? lol

Your case should be a ground. Or, touch any black wire leading to your PSU. (BLACK ONLY!!!!)
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › Resistance and Voltage Measurement?