I watch quite a few repair youtubers who call themselves electronics engineers/technicians. Most of them have some basic knowledge but usually just swap IC's or voltage inject and replace hot components. Your channel is so much more than that. A proper old school engineer that works things out and explains how to diagnose with theory and fundamentals. Keep up the good work mate. BTW €45 no fix no fee is an unbelievable deal!

@blackace69

6 ай бұрын

Idk if you realise. But i can fix 5 devices with short with thermal cam before he finds it "old school" way

@Negiku

3 ай бұрын

​@@blackace69 I believe most of these videos are intended for hobbyist or newbie technicians. Thermal cams are not likely owned by these people including me because of their high price. But ofcourse it's much handy and easier to repair with them.

These repair videos are awesome, the way you explain them from the basics with theory and practice all in one, I have seen similar videos on youtube like Sorin's Electronics repair school or NorthridgeFix videos but from those I a novice guy can't understand to much unlike from these, very good job, keep teaching this way sir. When I first discovered this repair channel I didn't liked it because you talked to quiet and fast in the videos and I can't understand a lot of the talk but a while ago this has changed now it's everything fine, thank you and keep doing this in the future. :)

Good one again. My idea to test the phases without heatsink was to direct cold air to the chip with an hair dryer. Soldering wires also resulted, but more intrusive.

Very good work ... especially tacking on wires to allow refitting the heat sink and continue testing 😀👍

@LearnElectronicsRepair

2 жыл бұрын

Yeah you have to think out of the box sometimes

I must say your Kung-Fu has indeed gotten stronger. Very informative and keep up the good work.

i'm looking forward to this. i've been having no end of issues with my 1080ti founders edition... works, on and off.. kinda. but sudden inrush of grpx intensity just freezes the pc entirely. Always love your vids anyway.. but i just wanted to relate, express my thanks for all your knowledge sharing.. and get more info/educate myself further. Thank you! :)

@LearnElectronicsRepair

2 жыл бұрын

Did it help you?

@Palmit_

2 жыл бұрын

@@LearnElectronicsRepair HI Ricahrd. I've not been able to give it a proper 'go' yet. I shall let you know. hopefully on saturday. or sooner. :)

Great job Mr. Richard

I am looking forward to seeing more videos with Oscilloscope, even short ones like this one !

That's more than fair for a repair! If anybody complains about that, they're most likely a malcontent and just gonna be trouble. There are people on here that charge double that, even if they can't repair it.

Sir, you did a great work.

Rich, your a legend mate. Who would have thought, eh 😉 Great video pal, cant wait for the software video. Thank you.

@LearnElectronicsRepair

2 жыл бұрын

Publishing that today mate 😉

@NewbFixer

2 жыл бұрын

@@LearnElectronicsRepair Brilliant matey

@LearnElectronicsRepair

2 жыл бұрын

@@NewbFixer kzread.info/dash/bejne/nWyAt617qsmqg7g.html

Great video... I'm a fan of this type of video... I learn something new... I will buy a defective gpu an try to fix it... Thanks...

It's English but couldn't understand a thing... realized because it is rocket science!!! LOL. Liked and subscribed!

I have to buy an osciloscope. My GPU shut down while browsing and nothing powered up anymore. I've received it from warranty, (after 2 months) they said that they replaced 2 mosfets and mosfet drivers (I think they meant the doublers) and now driver crashes on full load, on everyting that exceeds 140W, before was working around 200w. It works only if I underclock it. I suspect 2 or more phases don't work. Thank you so much for this video!

Congrats!

So the BIOS communicates with the GPU, and the GPU communicates with the PWM (VID/PSI?) about the number of phases to trigger? I didn't know that the BIOS could affect the functioning of the vcore phases. Great video! If you could record another video talking about the ripple analysis of the VRM phases, that would be great.

way to go Richard :)

Richard I have the same problem with loading py flash it hung or so much delayed then I recreate the flash with rufus on gpt format instead of mbr, that solved the issue although my main-board is h510 somehow new, the content of the flash can be booted via legacy and uefi modes so gpt wont be an obstacle.

thanks for all video ,you have link for adepter pciE to gpu ?

estos videos son geniales 🙂

Hello! I have an r9 390 sapphire nitro black plate and I have the same problem or maybe a similar one, since when installing the drivers sometimes, not always, I get a black screen, either starting, in windows or playing, maybe I can use it for a few hours running and suddenly the black screen returns. The temperatures are low, between 54° to 62°. I kept the original BIOS and tried to download from techpowerup the BIOS that shows that GPU (HINYX memory) so I left both BIOS for different switches, I tried but unfortunately it didn't work. I also took the gpu board apart to clean it with isopropyl alcohol but didn't notice anything burnt or sulphated on it. Sorry for the question and if it took too long, I'm using google translate

Thanks

do you have a shop where we can send GPUs to be fixed ?

Heya very nice repair maybe I need a bios programmer lol

Hi...a good video, I have a rx550 with same ptoblem...but my card come as like from new ....may you helpme ?please

Hello sir, how do you indentify a BIOS chips so easily? What are the common features of one? I suspect my 3060 Ti GPU has a faulty BIOS and want to look up its data sheet. Thank you.

nice one

I have the same issue with my HD 7850 but in my case VRM section is getting too hot ....I checked for short but there is no short.... Whats to do??? Any fixes ????? Please help me sir!!!

Hello Richard. This appears to be my daughters card my brother sent to you for repair. I understand you have managed to repair it and you have been paid for your time and return postage on the 17th May. We're a little concerned it's taking an excessive amount of time to get it sent off. I'd appreciate it if you could get it in the post ASAP. Thanks Jim.

I really like your repair videos but I find your work indeterminate. Like no clear fix or no clear problem. Something with your service seems on going. Thank ya'll for your vids, and I never knew you were no fix no fee. That clears up a bunch for me.

At 30:28 in the readout of llspci where you get the address for the graphics card, it also states (size=256M). Later on you use 10 or 30 for the size of the memory to test. I think you should at least try the 256 megabyte. Although this does not seem to be the entire memory of the card, maybe it is multiplexed somehow, because in the beginning(2:51) the sticker says the card has 4GB which is 4096MB. Also, you can leave the mount command out of the list of commands. You would only need it if the files are on another USB Stick/CD/Drive and not on the bootable archiso stick.

@LearnElectronicsRepair

2 жыл бұрын

Regards mount command - I am no expert on linux. Thanks for your advice Regards testing more memory - generally if you have a RAM problem on a GPU sufficiently severe to cause it to crash when the drivers load, it is going to show up pretty damn fast once you run a memory test- there is no need to test all the RAM

Love u

ahh. ok. phew. i noticed you removed my previous. I was just trying to let you know!! :) one friend to another

@LearnElectronicsRepair

2 жыл бұрын

I didn't remove anything Rob

@Palmit_

2 жыл бұрын

@@LearnElectronicsRepair oh. ok.. google did then. thats good. i happend to mention some information that should been covered on the box. if you get what i mean...

@LearnElectronicsRepair

2 жыл бұрын

@@Palmit_ Ahh so I'm not sure what you posted but YT has a habit of auto-deleting subscribers posts if they link to some website maybe. Personally I don't delete any comments and never have apart from the links to porn sites that always get posted in the first 20-30mins of every new video I post. Not that I have anything against porn, it's just this isn't the time and place. If anyone wants to tell me I am wrong in the comments that is fine, I'll either hold my hands up publicly, accept I'm wrong and learn something, give some good reasoned arguments why I think I am right, or say well yeahhhh OK.... but yes but no but. In this case I hold my hands up and say despite my best intentions Yeah you were right 😊

@Palmit_

2 жыл бұрын

@@LearnElectronicsRepair - it's a bit difficult, as i didn't have any other way to let you know. what i put was basically correctly picked up by the algorithm and removed. as for the other stuff.. mate.. your channel is amazing, none of this 10 min vid with 3 min sponsors rubbish. Your's is proper length vids with detailed explanations and real physical examples along the way.. I wish i had a better equipped lab. I have to unpack my kit and reorganise my entire living room each time. Anyway. Glad you're well. and thank you. Genuinely

When i run teston my r9 280x with 10mb on card it say that card dont have faulty chips but when i add 20mb it say that chip 10 is faild.... Does it make sense adding more than 10mb to test RAM chips? Btw card is crashing on some games but furmark and heaven is passing ok...

@LearnElectronicsRepair

Жыл бұрын

Usually a faulty RAM is faulty enough to fail in the first 10MB. You could always just change the chip. How are you testing the RAM?

@milanterzic3980

Жыл бұрын

Thank you Sir for answer, i test it with this Linux Scripts and dmgg.py And also i tried with kings killer program, and that program also said that card dont have faulty chips... I was changed that chip with new one but fault is still present.

;) nice

So the other fases now Running... Can you measure for we see .. thanks.. Greatings from Portugal 🇵🇹 🌟

@LearnElectronicsRepair

2 жыл бұрын

Yeah I can do that

@Qyngali

2 жыл бұрын

There's no way the card would run furmark with just 1 phase active!

I have an rx5700 xt and when it loads the drivers it crashes with a green screen, when passing the tserver to it, while it is running half of the screen appears green and after a few seconds it locks and the entire screen turns green. some help? Thanks a lot

@nyto1333

Жыл бұрын

Did you fix it

The card was detected by PC, why did You solder BIOS chip to reprogram it? Flashing from PC wouldnt work?

@LearnElectronicsRepair

2 жыл бұрын

I didn't totally trust the card not to crash at a crucial time, and I've seen times in the past when the BIOS 'update' tool says that the current BIOS and the new file are the same version so it will not program it. I honestly don't trust it when it says they are 'the same' because I worry that the upgrade tool just reads the version number from the existing BIOS and does not check to see if it is corrupted. Removing, programming and resoldering the BIOS took about 10 mins so it isn't any hassle at all and at least I know it is done.

Some kind of ESD packaging might have been nice...

So this was a new Bios ?.....cheers.

id put a little caveat at this repair - if the bios hadnt been messed with/corrupted you might have just bandaided the issue by flashing one that has lower power limits/clocks, tho thats a general problem with flashing 'not for this exact model but seemingly working' bioses

@LearnElectronicsRepair

2 жыл бұрын

It is possible mate - I used an official AMD reference bios from Techpowerup. As this is an HP OEM card I card I could not find the correct BIOS file. I guess the frame rate in the furmark test would give a good indication if the card is working properly (compared to a similar card)

@Qyngali

2 жыл бұрын

@@LearnElectronicsRepair If anything the HP OEM cards has a lower limit than the reference AMD bios. I've had similar problems as this with cards running a mining bios... BTW, there's not really a need to desolder the bios, the Windows flasher works fine in most cases.

@LearnElectronicsRepair

2 жыл бұрын

@@Qyngali As I mentioned in reply to the same comment elsewhere - I believe it is possible that the windows flasher could say the existing BIOS is the same version as the new one and refuse to upgrade it, but I worry it just reads the version number and not checks if the existing one is corrupted or modified. The way I did it is no hassle, takes about 10-15 mins and at least i know for sure I flashed the BIOS

@AuDiGo6

10 ай бұрын

No. I have exactly the same problem with the exactly same symptoms. And guess what - flashing bios didn't help although there are two available versions on the Techpowerup. It's probably exmining card, so problem is deeper.

whats your postal address i want to post you rx480 not booting no fan spining where do i send the money if you can fix it.?

voltage injection look at all the smd caps, just one it takes

love your videos, but you tried to hide this persons address and unfortunately failed spectacularly!

@LearnElectronicsRepair

2 жыл бұрын

Yep I'm better at fixing stuff than hiding stuff

.

45 euro is very cheap.

@LearnElectronicsRepair

2 жыл бұрын

That is what I charge for this sort of repair - plus parts. BGA rework costs more. As I mentioned elsewhere I am aided by the low cost of living in the Canary Islands. For example electricity for my house (we don't have mains gas here) is €50 a month and water is €20 per quarter, so this one job pays my energy bill for a whole month or water for best part of 3 months. Diesel for the van is currently €1.42 a litre (which is very expensive for here, it's normally about 90 cents) so to help out the Canarian Government give us a 14% rebate on the displayed cost at the pump, if I put €25 euro of fuel in (pump price), I get €3.50 back in cash so I'm paying €1.24 a litre. That's £1.06 English money - and I am sure I would be paying more if I still chose to live there. To take the p!ss the British government recently knocked 5p off the fuel tax so people would realise how lovely and generous they are and vote for them next time. Oh and they will also tell you the cost of living crisis is everywhere. You are being lied to. It isn't Anyway enough politics, the price is relative to how much it costs me to live here. You could say if I'm charging the equivalent of 1 months household energy bill I'm actually over charging? 😉

@riazmiah1615

6 ай бұрын

​@@LearnElectronicsRepair Is there an email I can contact for a repair? Thanks 👍

Sorry, gave up on this video at 25 mins, the text is unreadable, you could do with either lowering screen resolution, better lighting or a capture card.

@vladimirputin4822

2 жыл бұрын

Or you could get fitted for glasses.

@geoffw.5003

2 жыл бұрын

@@vladimirputin4822 Just trying to give some constructive feedback for his next video on the linux tool, no need for the arsey reply. We arent all 20 year olds with perfect 20/20 eyesight you know !

@vladimirputin4822

2 жыл бұрын

@@geoffw.5003 Maybe that's why glasses exist?

@LearnElectronicsRepair

2 жыл бұрын

Hi Geoff I'm going to upgrade my recording equipment shortly and want to include a capture card - I'm just trying to work out how to capture from HDMI/DVI or VGA depending what connector the PC/GPU under test has and keeping in mind I also work on retro PC hardware so it could be running at low resolutions too. Could you not read the screen at 26mins onwards when I switched to a different screen/camera and turned off some of the external lighting? I'm making another video today showing how to set up your own USB stick so I'll try and zoom in a bit for you when I demonstrate the software again

@seeithappen1

2 жыл бұрын

@@LearnElectronicsRepair I must agree that from 26min the font size on the screen is very small. Is there no option to increase the font size ? I think if you lower the resolution of the screen the text will be bigger.

nice one