dropped gpu Dropped 3080, b2 error (no boot) possible fixes?

[Krystel1337]

So i got my hands on this 3080 from zotac which was apparently dropped to the floor by the owners child and i got for a good price, so i went

for the deal in hopes on fixing it. 

 

So now to the interesting part.

There was a dent in the backplate and the rear bracket was bend, also the "skeleton bracket" was severed at one point.

On the actual pcb were no damages in sight, i searched over an hour for potential damage but couldnt find a stretch on the pcb

i also could compare it next to a similar card since my friend was over with his card which was a amp holo and they share 

basically the same pcb still no parts missing or scratches.

 

When plugged in, it gives just a B2 error so it doesnt boot, when booting with the Integrated Graphics  

it "partially" shows up on device manager sometimes yes sometimes no, but as soon as you try to speak with the card

the pc freezes (picture attached).

 

When plugged in fans and rgb are starting.

 

Any ideas what i can do from this point on?  I dont have a measuring device to "stab" the card all the way to find something.

 

My last attempt would be the heatgun but that should be the last step.

 

Am i missing something? Any ideas tips would be appreciated. 

 

 

[8-Bit Ninja]

Difficult to say really, could possibly be a cracked solder joint (In which case reheating the card and "reballing" could fix). The board could also have split inside and due to it being a multi layer PCB with internal traces would look fine on the outside (if that's the case its pretty much unfixable unless you can track down where the trace is damaged, locate where it goes from and to and then solder a wire between the two as a replacement line). 

[Levent]

Check for physical damage, then check the voltage rails.

[Krystel1337]

1 minute ago, Levent said:

Check for physical damage, then check the voltage rails.

i checked over an hour for physical damage (visually only) i can make some pictures of the pcb if you guys want to take a look yourself.

Can i check the voltage rails (you mean the 8 pin power delivery right?) besides with a multimeter?

[-rascal-]

2 minutes ago, Krystel1337 said:

i checked over an hour for physical damage (visually only) i can make some pictures of the pcb if you guys want to take a look yourself.

Can i check the voltage rails (you mean the 8 pin power delivery right?) besides with a multimeter?

 

Did you remove the GPU cooler, or just inspect the back-side of the card, and general face of it?

You might need to do a full GPU cooler + backplate disassemble, and do a thorough inspection.

[Vishera]

13 minutes ago, Krystel1337 said:

Any ideas what i can do from this point on? 

Show us pictures,we may catch something you didn't.

13 minutes ago, Krystel1337 said:

My last attempt would be the heatgun but that should be the last step.

Only people who have no idea what they are doing do that.

[8-Bit Ninja]

1 minute ago, Vishera said:

Show us pictures,we may catch something you didn't.

Only people who have no idea what they are doing do that.

Not necessarily, I used to work for an electronics company and we would usually remove SMC components with a glorified heat gun. 

[Krystel1337]

Just now, Vishera said:

Show us pictures,we may catch something you didn't.

Only people who have no idea what they are doing do that.

As i said i dont really want to do that since i dont even have a proper temperature measuring device to stay in the right range 

1 minute ago, -rascal- said:

 

Did you remove the GPU cooler, or just inspect the back-side of the card, and general face of it?

You might need to do a full GPU cooler + backplate disassemble, and do a thorough inspection.

I inspected the full card, im going to demount the heatsink again and upload some pictures for you guys.

Hope the my S10´s quality is good enough for the details, give me 10 minutes

[Vishera]

3 minutes ago, 8-Bit Ninja said:

Not necessarily, I used to work for an electronics company and we would usually remove SMC components with a glorified heat gun. 

That's different,the purpose is different,you removed components,but op means to just heat the card and hope it will just work.

[Krystel1337]

[Krystel1337]

Maybe i found the problem when the light is in a specific angle it appears there are some craters in the die itself, you cant feel anything or see from a different angle so i dont know if its actual damage

[-rascal-]

@Krystel1337 Zotac RTX 3080 Trinity?

That PCB looks like the card Buildzoid covered.

 

 

[8-Bit Ninja]

22 minutes ago, Vishera said:

That's different,the purpose is different,you removed components,but op means to just heat the card and hope it will just work.

Identical process to fix cracked solder, only difference is instead of lifting the component off the pads you keep it in place on the pads

[8-Bit Ninja]

9 minutes ago, Krystel1337 said:

Maybe i found the problem when the light is in a specific angle it appears there are some craters in the die itself, you cant feel anything or see from a different angle so i dont know if its actual damage

If you can’t feel the “crater” then I doubt it’s the problem, dyes are surprisingly resilient. To be honest with you OP you’re probably in over your head here. With a volt meter, a full circuit diagram and a reasonable understand of electronics you could possibly track down the issue. But unless you can find something obvious the chances of you locating the damage with your eyes alone and slim to none. 

[-rascal-]

I'm not seeing anything missing...

Couple of contact pads on the PCI-E X16 slot looks a little dirty (?), though.

 

[Krystel1337]

11 minutes ago, -rascal- said:

I'm not seeing anything missing...

Couple of contact pads on the PCI-E X16 slot looks a little dirty (?), though.

 

i try to clean it, but i dont think that the connection is interferred to the point where the card fails 

[Krystel1337]

didnt do anything, the dirt is mostly angle specific it doesnt look dirty when viewed from different angles, but i expectec that, so last instance would be the heat gun or does Linus what to drop it aswell in a video with his magic hands to make it work once again ?

[skNDstry]

1 hour ago, Krystel1337 said:

didnt do anything, the dirt is mostly angle specific it doesnt look dirty when viewed from different angles, but i expectec that, so last instance would be the heat gun or does Linus what to drop it aswell in a video with his magic hands to make it work once again ?

Or oven (as a last last last resort lol) Good idea will to be looking at some thermal imaging camera and see if one area of the card is super hot or something. You may also want to try melting some flux (or resin or whatever they call those in your area) to locate what precisely is failing, which would normally have either no temp or much higher temp than usual (put a small temporary heatsink on it before you do anything though)