ok i might have made a small but substantial mistake in this video. you can have more inductors than phases in a VRM, but you can likely not have less inductors than phases in a VRM. so if i ever say this here or in another video it's likely wrong.
I sat in a cold room with a coat. I sat quietly for 48 minutes and it was worth it! I'm going to start binging your prior videos - thank you for sharing your craft Commander Soyo.
The easiest explanation for the phases is that they are like no of cylinders in car or bike engines. For a given displacement, say - 1000 cc or 1 ltr, you can have a large single cylinder that makes a hell lot of torque but power comes in pulses. Also all components must be very strong and heavy. Or you can have 4 250 cc cylinders that are lighter and power comes in more smooth manner. Similarly, having many phases helps in having switching pulse split over many small intervals. This helps in reducing the size of inductors and MOSFETs and the current they carry. Also, the power delivery is much cleaner with less ripples.
this video is actually amazing considering your subscriber count. You WILL blow up. Please don't quit, you will become rich from this and teach many people great information along the way.
Guys like you and BZ are GODS for going out of your way to explain and teach us normie noobs. Appreciate the content OH SO VERY MUCH!! Hope you get to a mil+ subs, keep up the good work!
Excellent information about graphics cards!!! My humble thanks. 👍. Interesting info about pwm switching frequencies and structure of a card. Thanks again.
These videos are all really terrific! Explained so well and even someone like me that's solid with repair - but not GPU repair - learned a lot. THANK YOU and just subbed! My first GPU attempt is going to be a 980ti SC I just grabbed and this info is so helpful.
Please, don't do the 980 Ti. Buy some very cheap video cards and start there. It's impossible to not kill your first 3 or 4 video cards unless there's something very simple to repair and you're super lucky. Start with those with a TDP less than 150W. It's easier and if you mess up one of the phases it's basically nothing bad happening (or almost nothing). Let the 980 Ti aside for a while. You'll come back to it later. After all it's not going anywhere. I understand you already have skill but you need to learn a few things first. Video cards with higher TDP are harder to work on because the dissipation of the heat is much higher when you try to de-solder or solder something on the board. Trust me, you need to work out your own set of tools you're comfortable working with. Not all flux is made equal and you will notice that the fake Amtech 223 is better for some work than the original. The original is better for other kind of work. The Amtech 559 V2 is wonderful in combination with a specific kind of soldering wire while for some other kind of soldering wire you may work better with a different kind of flux. To be able to de solder an electrolytic capacitor from a board with a TDP over 200W is a real challenge while de soldering one from a board with only 75W TDP is much, much easier. Again, trust me, let the 980 Ti aside for now. Hope this helps.
Great explanation , grat video. Just one correction 11:45 I think Vmem power circuitry is smaller not because of quality of power that it needs but it needs way less power .
Fantastic video. A suggestion is to put some of the terms into text as the acronyms and some of the technical words are hard to follow. Otherwise, my best sub ever. Hoping to rescue a 970, and this will be my starting place.
Hello, thanks for your videos, im trying to learn how to repair gpus with a R9 270x from Sapphire and its going really hard to recognize parts and make meassurements, i hope this video helps me!! :)
Thank you for breaking it down so clearly. Appreciate the simple yet thorough explanation and the reasonings. But I had one question that I may have missed(?), what purpose do those mosfet (black chips) /capacitor do? The ones located on left side of the inductors on GTX 980, 980 Ti and 2080.
The MOSFETs are basically high speed switches that switches on and off as per the PWM signal from the controller, slicing or chopping the continuous 12 volts DC input power to small spikes of 12 volts. It is passed to inductors which is basically a voltage to current converter. It takes the 12 v low ampere spikes from MOSFET and converts it into 0.8 to 1.3 volt high ampere supply with some ripples. The capacitors connected between this power rail and ground smoothes out the ripples and produces a smooth high current dc voltage for the GPU or memory chip.
Hello, I need your help, I have a gtx 960 that windows detects but when installing the driver the pc crashes, I pass the mats and the memory has no problem, I change the bios with a CH341A, because with nvflash it does not detect it, for another of the same model in techpower up and nothing, could it be the bios chip?
Great video! Thnx for the information you providing to all of us. If I may ask, where did you get your knowledge? I am very curious about learning graphic card repair but I am having troubling finding resources especially considering the diagnostics and where to measure for different voltages and resistances. I would need like a complete guide on how the electronics work and what values are normal. For example the 12v, 5v or 1.8v locations etc.
I'm trying to obtain the exact same knowledge about graphics cards as you are. Did you get lucky on finding reliable resources on diagnostics and where to measure certain values such as voltages and resistance?
You have a passion. Is this your hobby or do you make your living out of these repairs? I really hope you do. Do you have a similar video for motherboard? I tried to look but I couldn't find. Ps. I'm completely stunned
I have a Zotac RTX 2070 Amp Extreme Core that gives me errors. It only seems to work when I lower my memory clock by -600 and I can run some games like Little Nightmares. When I try to play Warzone it crashes after I get to the menu screen. Do you have any idea what can be causing this?
@ 22:40 I have a similar looking PWM controller on my GTX 970 but it's NCP81174 Do you know how to check it with a multimeter? Because I suspect it causing a short on the Mosfets, I removed a Mosfet and measured it alone there's not short.
I just jumped down the GPU rabbit hole trying to figure out what is likely causing issues with 2 graphic cards that I just purchased used. Specifically what component is the culprit. They are both AMD cards, a Gigabyte RX 570 4gb and and MSI RX 480 4gb. The 570 will load to windows desktop for about 30 seconds then crash to black screen and restarts the PC to windows BSOD. The 480 will display a brief pink screen for 3 seconds then normal resolution nicely and allows video playback, internet surfing etc until I load Unigine Heaven to test it then it too crashes to black screen. GPUZ sees the RX 480 but will not show voltages, or memory or temps. MSI afterburner won't show specs or allow the sliders to be adjusted. Like it is not being recognized. Both cards have normal BIOS and use the same driver. I used DDU and the RX 480 will not allow new driver to install, not even previous one AMD showed error. I already cleaned them thoroughly with new paste and pads. Could these cards have VRAM or memory controller bad? Should I break out the heat gun? My XFX RX 580 8GB and other AMD cards works great in the same PC.
nice video tu u so much recently my video card start shutting down from itself now trying to press my pc power swich i saw sparks coming from my card i desmentle it and see on the board copper fried small dot from a cap that blown is it fixible
What happens if the power connectors are unified ? Does it make any kind of a difference ? Can you simplify the PCB if you unify the power connectors ?
You're a great translator, really high-quality material. It's a pity that there are few such materials on the Internet. I came here by accident, looked at it and remembered that he has a very old, non-working N610 2gd3hlp graphics card. I can't find the diagram anywhere on the internet. I made an external inspection. And now I have questions. I will only add that I once received the card from a friend who used a poor quality power supply. I see that two small capacitors are missing. the card has 8 pins on the PCIE output and the other one probably has 11. I don't know if these outputs correspond to the typical PCIE pin arrangement? because then I would have a short circuit on the 3.3V and 12V lines. A bit strange. Another question: how can I determine whether a given capacitor is broken? If it's soldered in, I guess it won't measure anything? How to find and select replacement elements now? How can I know what the value of these elements is without a diagram?
hey soyo , im stuck on a vega 56 thats only recognized when plugged on a pcie 2.0 (16x port , working at 4x) , when plugged on pcie3.0 it turns on , fans and lights but nothing , bios is good , power too , chips seem fine , any ideas ?
That is a typical problem that appears when one or several of the small MLCC capacitors on the PCI-E slot interface are missing or damaged. Take a good look at the card and verify all are ok
Hello I have an MSI R9 380 it works just fine, never crashed, no overheat fans spin normally BUT only outputs video through DVI I and DVI D ports no displayport nor hdmi port. How could I fix it or what may be the cause of this?
@@makinkurwamonster6566 I don't know the thing is that hdmi port works just perfectly when connected to a specific monitor, it is a benq gw2480 but I've tried connecting it to like 4 different monitors and a tv and it just doesn't work. Notice that those monitors and tv work perfectly with any hdmi device such as laptops or consoles. That's what I don't understand what's going on.
1:27 i wanna know more about this part over here, is a graphics card that has it's vrm on the left side of the board will consume more power from the pcie then from a 6pin connector?, i've seen alot of amd graphics card pcb and most of them will have it's vrm on the lefts side of the board including mine, and a lot of user realized that the graphics card consume more power from the pcie then from 6pin connector, i know it's not much of a problem but, my HD6950 can consume upto 600 during heavy game, i'm worried that the pcie lane might burn at some point
I have a vga GTX 1660 by gigabit it has a problem Wich is no power,when I turn off and turn on the PC several times it will get power.is that repairable issue or not?
very likely a dead VRM rail. i made a video that covers this kind of failure and the potential fixes recently so if you want more info you can watch that
@@CmdrSoyo is there a way to fix this.. pc is giving display through onboard with the gpu and it doesnt turn off.. can there be a short in the vga bios chip?
If I'm not mistaken, this board is for one system consisting of three mosfets and one large coil that powers the GPU, and I see one small coil that powers the vram, but I don't see any other mosfets. so a little different than in the movie, but it's an old card. I just wanted to clarify the issues that bother me. Additionally, where to get graphics card diagrams?
Наука
ok i might have made a small but substantial mistake in this video. you can have more inductors than phases in a VRM, but you can likely not have less inductors than phases in a VRM. so if i ever say this here or in another video it's likely wrong.
pin your comment
I have a question how can i reach you.
Thank you so much for this very informative video. I definitely will be watching ALLLLLLL your videos!
I sat in a cold room with a coat. I sat quietly for 48 minutes and it was worth it! I'm going to start binging your prior videos - thank you for sharing your craft Commander Soyo.
The easiest explanation for the phases is that they are like no of cylinders in car or bike engines. For a given displacement, say - 1000 cc or 1 ltr, you can have a large single cylinder that makes a hell lot of torque but power comes in pulses. Also all components must be very strong and heavy. Or you can have 4 250 cc cylinders that are lighter and power comes in more smooth manner. Similarly, having many phases helps in having switching pulse split over many small intervals. This helps in reducing the size of inductors and MOSFETs and the current they carry. Also, the power delivery is much cleaner with less ripples.
Just found your channel. I am studying electrical engineering and am grateful for your content. Thank you.
this video is actually amazing considering your subscriber count. You WILL blow up. Please don't quit, you will become rich from this and teach many people great information along the way.
Exactly what I looked for!!
So underrated video
Guys like you and BZ are GODS for going out of your way to explain and teach us normie noobs. Appreciate the content OH SO VERY MUCH!! Hope you get to a mil+ subs, keep up the good work!
Thanks for making this video. Why does it have so few views and likes? This is the most detailed video about this subject on RUclips.
Man, keep it up these types of videos, really informative.
Excellent information about graphics cards!!! My humble thanks. 👍. Interesting info about pwm switching frequencies and structure of a card. Thanks again.
Great video! Thanks for the detailed explanation. Keep up the good work.
what you show is a rare hardcore technical information, keep it up i love your channel..... cheers!!!
this was the perfect video for my skill level and explained exactly what i wanted to know, thank you!
Thank you so much, this was an amazing video. Keep them coming :)!
These videos are all really terrific! Explained so well and even someone like me that's solid with repair - but not GPU repair - learned a lot. THANK YOU and just subbed!
My first GPU attempt is going to be a 980ti SC I just grabbed and this info is so helpful.
Please, don't do the 980 Ti. Buy some very cheap video cards and start there. It's impossible to not kill your first 3 or 4 video cards unless there's something very simple to repair and you're super lucky.
Start with those with a TDP less than 150W. It's easier and if you mess up one of the phases it's basically nothing bad happening (or almost nothing).
Let the 980 Ti aside for a while. You'll come back to it later. After all it's not going anywhere.
I understand you already have skill but you need to learn a few things first. Video cards with higher TDP are harder to work on because the dissipation of the heat is much higher when you try to de-solder or solder something on the board.
Trust me, you need to work out your own set of tools you're comfortable working with. Not all flux is made equal and you will notice that the fake Amtech 223 is better for some work than the original. The original is better for other kind of work. The Amtech 559 V2 is wonderful in combination with a specific kind of soldering wire while for some other kind of soldering wire you may work better with a different kind of flux. To be able to de solder an electrolytic capacitor from a board with a TDP over 200W is a real challenge while de soldering one from a board with only 75W TDP is much, much easier.
Again, trust me, let the 980 Ti aside for now.
Hope this helps.
Really enjoyed this teaching, keep it up my friend!
Thank you for a great explanation of what is going on, power wise, on these boards. Nicely done.
Thanks for sharing your knowledge.
Thanks a lot for share your knowledge with us.
Not 10 minutes in, and I've learned so much already
Great job! Thank you so much! 🙂
Great explanation , grat video. Just one correction 11:45 I think Vmem power circuitry is smaller not because of quality of power that it needs but it needs way less power .
Great explanations
It would be great of there could be more videos like this
Fantastic video. A suggestion is to put some of the terms into text as the acronyms and some of the technical words are hard to follow. Otherwise, my best sub ever. Hoping to rescue a 970, and this will be my starting place.
I agree. That would be a great addition. I had to look up the acronyms, which took me out of the flow of concentration.
Keywords:
0. PCB (printed circuit board)
1. gpu (processor)
2. vram (dynamic memory)
3. pci express (slot that connects to motherboard)
4. vrm ("interesting stuff", 2 kinds):
4.1. vcore vrm (bigger block, for gpu)
4.2. vmem vrm (for vram)
- vrm components (not exhaustive):
1. Mosfets
2. Inductors
3. Capacitors
4. PWM controllers
- datasheets (to learn about graphics card's specs, like vrm quality, pwm controller info, etc.)
PS: notes to help non-native speakers, hard of hearing and beginners lile me. Please, feel free to add and/or correct this post.
ty man, i was gonna rewatch the video to take note of this stuff. This helps alot 👍👍
Good Video👍👍👍
Hello, thanks for your videos, im trying to learn how to repair gpus with a R9 270x from Sapphire and its going really hard to recognize parts and make meassurements, i hope this video helps me!! :)
Thanks a lot.
I’d recommend just saying higher switching frequencies introduced more wear to the moffetts
este tipo d videos valen oro
Literal
So underrated
Good brother
bought 10 gpus on ebay and fixxed them all. thanks dude
Thank you for breaking it down so clearly. Appreciate the simple yet thorough explanation and the reasonings. But I had one question that I may have missed(?), what purpose do those mosfet (black chips) /capacitor do? The ones located on left side of the inductors on GTX 980, 980 Ti and 2080.
The MOSFETs are basically high speed switches that switches on and off as per the PWM signal from the controller, slicing or chopping the continuous 12 volts DC input power to small spikes of 12 volts. It is passed to inductors which is basically a voltage to current converter. It takes the 12 v low ampere spikes from MOSFET and converts it into 0.8 to 1.3 volt high ampere supply with some ripples. The capacitors connected between this power rail and ground smoothes out the ripples and produces a smooth high current dc voltage for the GPU or memory chip.
Such good videos. Do you have any online course of GPU?
Hi @Zoras Tech How do you know which are 1.8 and 5v?
Hello, I need your help, I have a gtx 960 that windows detects but when installing the driver the pc crashes, I pass the mats and the memory has no problem, I change the bios with a CH341A, because with nvflash it does not detect it, for another of the same model in techpower up and nothing, could it be the bios chip?
Great video! Thnx for the information you providing to all of us.
If I may ask, where did you get your knowledge?
I am very curious about learning graphic card repair but I am having troubling finding resources especially considering the diagnostics and where to measure for different voltages and resistances. I would need like a complete guide on how the electronics work and what values are normal. For example the 12v, 5v or 1.8v locations etc.
I'm trying to obtain the exact same knowledge about graphics cards as you are. Did you get lucky on finding reliable resources on diagnostics and where to measure certain values such as voltages and resistance?
You have a passion. Is this your hobby or do you make your living out of these repairs? I really hope you do.
Do you have a similar video for motherboard? I tried to look but I couldn't find.
Ps. I'm completely stunned
I have a Zotac RTX 2070 Amp Extreme Core that gives me errors. It only seems to work when I lower my memory clock by -600 and I can run some games like Little Nightmares. When I try to play Warzone it crashes after I get to the menu screen. Do you have any idea what can be causing this?
Awesomeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
What is component name that have + mark on them and in vrm area and usually on high end vga
perfetto per mio gusto
To the very near right of the doublers on the RTX 2080 you see six rectangles three large three small what are those?
if you have an rx 470 gpu which has not power, What should you check first
Can we convert it sata hdd for data recovery, like MRT card
hey dude thx for ur videos
dude iwant to be a pro in gpu what should i watch or read in addition iam graduted as computer engineer
I have a clarification that in my gtx 780 there are two capacitors missing near the r22 do you know the volts of the capacitor
@ 22:40 I have a similar looking PWM controller on my GTX 970 but it's NCP81174
Do you know how to check it with a multimeter? Because I suspect it causing a short on the Mosfets, I removed a Mosfet and measured it alone there's not short.
do any one on the cht know were i can get the board view of the v328 ver 3.0
I just jumped down the GPU rabbit hole trying to figure out what is likely causing issues with 2 graphic cards that I just purchased used. Specifically what component is the culprit. They are both AMD cards, a Gigabyte RX 570 4gb and and MSI RX 480 4gb. The 570 will load to windows desktop for about 30 seconds then crash to black screen and restarts the PC to windows BSOD. The 480 will display a brief pink screen for 3 seconds then normal resolution nicely and allows video playback, internet surfing etc until I load Unigine Heaven to test it then it too crashes to black screen. GPUZ sees the RX 480 but will not show voltages, or memory or temps. MSI afterburner won't show specs or allow the sliders to be adjusted. Like it is not being recognized. Both cards have normal BIOS and use the same driver. I used DDU and the RX 480 will not allow new driver to install, not even previous one AMD showed error. I already cleaned them thoroughly with new paste and pads. Could these cards have VRAM or memory controller bad? Should I break out the heat gun? My XFX RX 580 8GB and other AMD cards works great in the same PC.
nice video tu u so much recently my video card start shutting down from itself now trying to press my pc power swich i saw sparks coming from my card i desmentle it and see on the board copper fried small dot from a cap that blown is it fixible
What happens if the power connectors are unified ? Does it make any kind of a difference ? Can you simplify the PCB if you unify the power connectors ?
Sir please creat a this kind of video for Zotac GTX 750ti 2gb .
You're a great translator, really high-quality material. It's a pity that there are few such materials on the Internet. I came here by accident, looked at it and remembered that he has a very old, non-working N610 2gd3hlp graphics card. I can't find the diagram anywhere on the internet. I made an external inspection. And now I have questions. I will only add that I once received the card from a friend who used a poor quality power supply. I see that two small capacitors are missing. the card has 8 pins on the PCIE output and the other one probably has 11. I don't know if these outputs correspond to the typical PCIE pin arrangement? because then I would have a short circuit on the 3.3V and 12V lines. A bit strange. Another question: how can I determine whether a given capacitor is broken? If it's soldered in, I guess it won't measure anything? How to find and select replacement elements now? How can I know what the value of these elements is without a diagram?
who are the 2 channels suggested at 26:16 ?
ruclips.net/video/oDRHV3qtSWc/видео.html
Put them into description plz . Thanks 🙏
Man you need to do a guide on how to trouble shoot a mxm video card. Just sent my 980m to the shop but I wish I knew just more.. :(
please would u like how to find short on gpu? also where generally a short circuit accure?
how to get the short?
Short up FFS 🙄
hey soyo , im stuck on a vega 56 thats only recognized when plugged on a pcie 2.0 (16x port , working at 4x) , when plugged on pcie3.0 it turns on , fans and lights but nothing , bios is good , power too , chips seem fine , any ideas ?
That is a typical problem that appears when one or several of the small MLCC capacitors on the PCI-E slot interface are missing or damaged. Take a good look at the card and verify all are ok
I'm more interested in the gpu out circuitry
Hello everyone"" I have 2.5 ohm on the vmemory, of my MSI 980ti gaming,,, does anyone know if this is normal,,,,,,,??????? please, thank you"""
Hello I have an MSI R9 380 it works just fine, never crashed, no overheat fans spin normally BUT only outputs video through DVI I and DVI D ports no displayport nor hdmi port. How could I fix it or what may be the cause of this?
maybe rust
@@makinkurwamonster6566 I don't know the thing is that hdmi port works just perfectly when connected to a specific monitor, it is a benq gw2480 but I've tried connecting it to like 4 different monitors and a tv and it just doesn't work. Notice that those monitors and tv work perfectly with any hdmi device such as laptops or consoles. That's what I don't understand what's going on.
So what is a pcb
Hello, I want to ask you a question about a component, how can I send you a message?
Was here
1:27 i wanna know more about this part over here, is a graphics card that has it's vrm on the left side of the board will consume more power from the pcie then from a 6pin connector?, i've seen alot of amd graphics card pcb and most of them will have it's vrm on the lefts side of the board including mine, and a lot of user realized that the graphics card consume more power from the pcie then from 6pin connector, i know it's not much of a problem but, my HD6950 can consume upto 600 during heavy game, i'm worried that the pcie lane might burn at some point
Depends entirely on how the power planes are designed. It has nothing to do with where the VRM is.
@@CmdrSoyo oh i see Thank you For your reply
I have a vga GTX 1660 by gigabit it has a problem Wich is no power,when I turn off and turn on the PC several times it will get power.is that repairable issue or not?
prolly wit micro soldering :p
Regards
We say in Germany „Du bist der best“
Show us a simple datasheet, how we read it correctly
25:17
I have a 1gb card that has chips that support 8gb...
The card: ATI-102-C24602(B)
vRAM chips: H51Q1G63DFR 11C
Please give me graphics card diagrams
bro I have aasus gtx 1060 strix 6gb card . .it doesnt detect by any motherboard... how can i troubleshoot this..
very likely a dead VRM rail. i made a video that covers this kind of failure and the potential fixes recently so if you want more info you can watch that
@@CmdrSoyo thanx bro I'll watch it
@@CmdrSoyo hello ny 1060 has very low resistance( about below 0.0 ohms) between ground and 1.8 v inductor.. is this a short..?
@@meranjana yes
@@CmdrSoyo is there a way to fix this.. pc is giving display through onboard with the gpu and it doesnt turn off.. can there be a short in the vga bios chip?
My 1060 6gb died. Yesterday, I went to a GPU repair shop and he too can't fix it. Guess I need to buy a new one.
Man Alter babbel doch Deutsch -.-
If I'm not mistaken, this board is for one system consisting of three mosfets and one large coil that powers the GPU, and I see one small coil that powers the vram, but I don't see any other mosfets. so a little different than in the movie, but it's an old card. I just wanted to clarify the issues that bother me. Additionally, where to get graphics card diagrams?