Overclock.net › Forums › Graphics Cards › NVIDIA › are these two capacitor important? gtx 980ti
New Posts  All Forums:Forum Nav:

are these two capacitor important? gtx 980ti

post #1 of 11
Thread Starter 
while i was changing my cooler i detached these two capacitors (picture attachement), but the point is, that the card is working without any problems yet, no pixel errors, no crashes, so i just want to ask, if these two capacitors were important, or what function these have.

post #2 of 11

Those are transistors, and I don't know what they're for. However, everything is necessary for the video card to function as advertised. You will probably run into some problems later. When, I don't know.


Edited by TwoCables - 6/9/16 at 1:25pm
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #3 of 11
If possible, I'd recommend trying to solder them back on, because transistors usually DO serve a function. You wouldn't want your card to short-circuit and catch fire wink.gif

Be careful if you do try to solder them back on, though, there's a lot of other traces around there, and it's really easy to accidently damage one or short one out.

Good luck thumb.gif
Behemoth
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5960x Rampage V Extreme Titan X Pascal Corsair Vengeance LPX [16GB DDR4 @ 2666MHz] 
Hard DriveHard DriveCoolingOS
Samsung 950 Pro M.2 512GB Synology NAS [10 drives] Custom loop [mostly EKWB] Windows 10 Pro 
MonitorMonitorKeyboardPower
ASUS PG279Q Dell UltraSharp UP2716D Das Keyboard Professional 4 Corsair HX1200i 
CaseMouseOtherOther
Phanteks Enthoo Primo Logitech G900 Beyerdynamic Custom One Pro Rode NT-USB 
  hide details  
Reply
Behemoth
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5960x Rampage V Extreme Titan X Pascal Corsair Vengeance LPX [16GB DDR4 @ 2666MHz] 
Hard DriveHard DriveCoolingOS
Samsung 950 Pro M.2 512GB Synology NAS [10 drives] Custom loop [mostly EKWB] Windows 10 Pro 
MonitorMonitorKeyboardPower
ASUS PG279Q Dell UltraSharp UP2716D Das Keyboard Professional 4 Corsair HX1200i 
CaseMouseOtherOther
Phanteks Enthoo Primo Logitech G900 Beyerdynamic Custom One Pro Rode NT-USB 
  hide details  
Reply
post #4 of 11
There's not enough resolution in the image to tell what they are ... other than they look like two terminal 0603 sized components.

One looks a bit darker than the other. Resistors are most often black eopxy on top with small white markings and two silver colored terminals.

Capacitors are most often tan or a light grey and will not typically be marked in the 0603 size.

If they are both capacitors and if you're lucky, they will just be decoupling caps and your board may still operate. If you have the tools and the skills you can put them back where they go. My eyes are getting old and I have trouble doing 0603 by hand these days.

When replacing 0603, I find it easiest to use some desoldering braid to soak up the solder on one of the pads. Then lay the component down on the two pads and heat the one with solder still on it such that the component sinks into it a bit and its thoroughly bonded (solder wicked onto the terminal). You may need a flux pen to get it to bond properly. Then resolder the other terminal where you removed the old solder.

Most of the components to the left of center on the board below are 0603. It's easy to distinguish the resistors from the capacitors by color as I described above.


Edited by Master Chicken - 6/9/16 at 1:25pm
post #5 of 11
If it still works okay I wouldn't worry about it much. Some capacitors are just there for redundancy and better voltage filtering so if one or two are removed it could still function within specifications.

Though, if you have the proper equipment then you might as well try to put them back on provided the contact pads haven't been lifted off the pcb.
The Banshee
(23 items)
 
Under the DICE
(19 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3.8GHz ASRock X370 Taichi GTX 780 Ti SLI @ 1100/1250 1.063V G.SKILL Trident Z B-Die @ 3466 C14 
Hard DriveHard DriveCoolingCooling
Corsair Force LS 120GB WD Blue 1TB Phobya UC-2 LT XSPC Razor GTX 780 Ti Waterblock w/ Backplate 
CoolingCoolingCoolingCooling
Darkside LP 360mm Radiator Alphacool ST30 240mm Radiator Darkside D5 Vario @ 12V Setting 5 Bitspower Z-Multi 150 Red Reservoir  
CoolingCoolingOSMonitor
Darkside (TFC) 3/8 ID X 5/8 OD Red UV tubing TFC Black straight barb fittings Windows 10 Pro 64-bit LG 25UM57-P 
KeyboardPowerCaseMouse
Thermaltake Challenger  EVGA 1300 G2 Fractal Design Arc XL Evga Torq X3 
Mouse PadAudioOther
Steel series QCK+ Turtle Beach X12 Logitech G27 
CPUCPUCPUCPU
1151: 7350K, 6320 (743 XTU) 1150: i7 4770K AMx Sockets: 8300 & Athlon's, Phenoms, ect. 939 & 754: Many Athlon's, Opteron's & Sempron's  
CPUCPUCPUMotherboard
775/771: Many C2's, Pentiums, Celerons & Xeons 1366: i7 920 D0 and many 4c & 6c Xeon's A bunch more Slot 1, S370 & S462/A CPU's. Z170M OCF & Z87 OCF + many more. 
GraphicsRAMCoolingCooling
Waaaay too many to list... A table full of SDR, DDR1, DDR2 & DDR3 Kingpin Venom LN2 Pot Bartx DICE/LN2 CPU Pot 
CoolingCoolingOSMonitor
Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) All of them. ;) Samsung S20B300 
PowerCaseMouse
Evga SuperNova 850 B2 Homemade wooden test bench Microsoft comfort mouse 3000 
  hide details  
Reply
The Banshee
(23 items)
 
Under the DICE
(19 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3.8GHz ASRock X370 Taichi GTX 780 Ti SLI @ 1100/1250 1.063V G.SKILL Trident Z B-Die @ 3466 C14 
Hard DriveHard DriveCoolingCooling
Corsair Force LS 120GB WD Blue 1TB Phobya UC-2 LT XSPC Razor GTX 780 Ti Waterblock w/ Backplate 
CoolingCoolingCoolingCooling
Darkside LP 360mm Radiator Alphacool ST30 240mm Radiator Darkside D5 Vario @ 12V Setting 5 Bitspower Z-Multi 150 Red Reservoir  
CoolingCoolingOSMonitor
Darkside (TFC) 3/8 ID X 5/8 OD Red UV tubing TFC Black straight barb fittings Windows 10 Pro 64-bit LG 25UM57-P 
KeyboardPowerCaseMouse
Thermaltake Challenger  EVGA 1300 G2 Fractal Design Arc XL Evga Torq X3 
Mouse PadAudioOther
Steel series QCK+ Turtle Beach X12 Logitech G27 
CPUCPUCPUCPU
1151: 7350K, 6320 (743 XTU) 1150: i7 4770K AMx Sockets: 8300 & Athlon's, Phenoms, ect. 939 & 754: Many Athlon's, Opteron's & Sempron's  
CPUCPUCPUMotherboard
775/771: Many C2's, Pentiums, Celerons & Xeons 1366: i7 920 D0 and many 4c & 6c Xeon's A bunch more Slot 1, S370 & S462/A CPU's. Z170M OCF & Z87 OCF + many more. 
GraphicsRAMCoolingCooling
Waaaay too many to list... A table full of SDR, DDR1, DDR2 & DDR3 Kingpin Venom LN2 Pot Bartx DICE/LN2 CPU Pot 
CoolingCoolingOSMonitor
Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) All of them. ;) Samsung S20B300 
PowerCaseMouse
Evga SuperNova 850 B2 Homemade wooden test bench Microsoft comfort mouse 3000 
  hide details  
Reply
post #6 of 11
Thread Starter 



is this one better to figure it out?
post #7 of 11
Clearly capacitors from the labeling. On a digital board like this, many of the small capacitors spread around are for decoupling. Clearly there are filter caps for the buck converters but those are obvious and not small. If the board is working ok, I wouldn't bother with attempting to re-solder decoupling caps. If you're not practiced at it, you could do more harm than good.

An example of a transistor can be seen at Q10 about 1 o'clock in the close-up photo. L5 is an inductor. To the right of L5 are what looks like some 0201 components. Thank God you didn't knock any of those off. They are murder to replace. You'd need something like a Mantis stereoscope. smile.gif
post #8 of 11
No doubt those are capacitors. Not transistors or resistors.

Some people claim cards run for years after losing a cap or two. It is very hard to replace them without damaging traces and possibly damaging the card more.
post #9 of 11
Thread Starter 
Quote:
Originally Posted by Master Chicken View Post

Clearly capacitors from the labeling. On a digital board like this, many of the small capacitors spread around are for decoupling. Clearly there are filter caps for the buck converters but those are obvious and not small. If the board is working ok, I wouldn't bother with attempting to re-solder decoupling caps. If you're not practiced at it, you could do more harm than good.

An example of a transistor can be seen at Q10 about 1 o'clock in the close-up photo. L5 is an inductor. To the right of L5 are what looks like some 0201 components. Thank God you didn't knock any of those off. They are murder to replace. You'd need something like a Mantis stereoscope. smile.gif

so you mean, i just should put the waterblock on it again and just let it run without doing anything?
post #10 of 11
Quote:
Originally Posted by CHEATSrichter View Post

so you mean, i just should put the waterblock on it again and just let it run without doing anything?

You should probably try that first before you attempt to replace them. If it won't fire up, then they were probably doing something more than simple decoupling.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › are these two capacitor important? gtx 980ti