MATS/MODS PASS but GPU unusable (3070)

[turbid quarry]

Hello everyone, I'm a complete outsider to this community and have been going off of whatever i can find on the net to diagnose my GPU as there is no real way to fix it in my country.

My RTX 3070 Mobile GPU has been crashing instantly the moment i boot into windows. It started as frequent game crashes and now it's just straight up unusable. My screen turns green and keeps flickering or just freezes completely with repeating cubic patterns everywhere. I've used Mods & Mats 455.127 on a bootable USB drive to try to check my VRAM health and it...passed? I'm very confused and have no idea what to do. I'm ready to do anything atp.

Here are the logs :
mods.log : https://pastebin.com/huqv1LCh
mats.log : https://pastebin.com/rKwSFNw6

[stuck pine]

if you get patterns on screen it means you have a faulty gpu. it's either overheating which is very common or the gpu or the board or both are faulty in some

check if your gpu is still under warranty and start an rma if it's still within warranty period, or if not, repasting is simple enough and usually just means unscrewing 8+ screws to access the gpu surface and heatsink for repasting

[turbid quarry]

my gpu isn't overheating though... i always keep its temps low and the vents and fans clean. even under stress it only went up to 86°C

[stuck pine]

how high do the fans spin?

rpm

an overheating gpu can be deceptive and you would only know it when it starts crashing or when it starts getting to a state where it will constantly crash, the fans will ramp up higher and higher in rpm

this is what the paste looked like on my overheating 3090 and was very similar to my 3070. both had over heating and both would crash after the fans were ramping up to compensate

the paste should be covering the entire surface

if fan rpm is hitting higher than 50% at around 60c, it's a possible indication of the gpu overheating

[turbid quarry]

well i can't really test it if it crashes instantly the moment windows starts running. however i can tell you that it crashes way before any fans start being loud or any component starts overheating

[stuck pine]

you know what brand it is?

the card

oh

[turbid quarry]

it's a laptop gpu

[stuck pine]

derp just reread

[turbid quarry]

lenovo

[stuck pine]

yeah

[turbid quarry]

i'm ready to do anything atp ngl

[stuck pine]

so you should check warranty on that laptop, because it sounds like it could be overheating or it has an actual fault

repasting a laptop is more involved than a desktop gpu

[turbid quarry]

it's been working fine for 3 years my warranty is gone by now, that's the first thing i checked

[stuck pine]

yeah, but the thermal paste can "pump out" over repeated heating and cooling

[turbid quarry]

pump out ?

[stuck pine]

like it literally separates out between the gpu die and the heatsink surface

[turbid quarry]

i see. but if it crashes before hitting high temps and before my fans start being loud wouldn't that be an indication that it isn't a thermal issue ?

[stuck pine]

the heating and cooling is kind of like "pumping" it

[turbid quarry]

like a "cycle" ?

[stuck pine]

kind of

the gpu can be overheating before the fans kick on

laptops are different so i dont know when it would be making the fan run

but i would either try getting warranty repair service or try repasting it yourself if it's out of the warranty period

repasting may not even fix the issue, but also if you do repaste it, i'd suggest swapping in a graphite pad like thermal grizzlys kryosheet or use ptm7950 phase change material. then you would never need to worry about over heating on it

can also add it to the cpu at the same time

again, start with checking warranty on the laptop

[turbid quarry]

warranty's long gone and i can't renew it

i really need a way to diagnose this gpu

[stuck pine]

the reason i suggest that it's an overheating issue and not a faulty gpu is because normally you would just be getting visual pattern glitches on the screen. overheating usually just shows solid full screen color or system shutdown/games crash shortly after launching

vram passing testing usually means it's gpu die related.

so more possibility it's over heating

thermal paste doesnt last forever, and they often used cheap garbage or not enough when manufacturing. im guessing you got a model manufactured during the shortages/pandemic which is also a time when quality control was pretty bad

if you dont feel comfortable opening it yourself, take it to a computer repair shop to have them do it

they will diagnose the issue and suggest/offer a fix

[lavish zealot]

Try booting a Linux distro from USB and see if it still fails if so it's hardware fault if not Windows is borked and I've seen windows do this before on laptops

[lavish zealot]

If u have any other system you can use to download any Linux version Ubuntu, Linux mint, or any other Linux version to a USB drive then boot that drive from the broken laptop it'll give u a for sure hardware or software failed test

[stuck pine]

linux isnt really using the card for much compared to windows, until you start a browser or a game, right? games would be pushing the gpu usage higher , but a browser might be enough. im not sure if linux would really help test it for anything other than an actual defective gpu that does not function properly just siting idle, but the problem sounds more like overheating to me than an actual defective card

[lavish zealot]

It probly is overheating and Linux has steam now so u can play games n pump the GPU

But if Linux boots and u can check temps then u can test it too instead of just windows cockbloxking u

[stuck pine]

could also be overheating due to a build up of dust and hair inside it instead of the paste going rogue

[lavish zealot]

Yup that happens a lot too

That's what usually happens to all laptops

I usually install Linux on those ones so windows doesn't shut down while recovering files if I can't remove the hard drive easily

[lavish zealot]

This is what my money is on is the air ports for the GPU are clogged AF like every other laptop on the planet

[turbid quarry]

the fans and vents are cleaner than every other thing in this house. cleaned them with compressed air and a small brush at the end of every month. I might try the linux trick though @lavish zealot @stuck pine

[lavish zealot]

There's a piece of tape usually inside there where the heatsink and the fins for the cooler are that collect a massive amount of dust regardless of cleaning the outside it's just how every laptop is. Having said that tho try Linux anyways and see if it craps out. If it does turn on tho and work with Linux then u can recover your files before reinstalling windows. If it does still die the GPU core is most likely overheating like he said since u did memory tests always n passed.

I repair laptops a lot and the number 1 cause is clogged coolers number 2 is borked windows number 3 is the spinning hard drive dies or slows drastically 99% of the time it's 1 of those 3 things

From what your describing tho it's gotta be GPU is overheating n needs fans unclogged and repasted or the core actually did die on it Wich is usually from the heat or your windows is borked from crashing in games. I've seen a lot of laptops and PCs when they crash in game it'll wreck the windows installations too for many reasons then it'll crash more and corrupt the system more n make it worse n worse till it does weird stuff like that n stops booting. Booting Linux kinda forces the PC to show the issue depending on what it does