Clipping off more GPU fan blades to balance out the already broken ones and fix the graphics card
HTML-код
- Опубликовано: 20 июн 2023
- I got an Nvidia RTX 3090 GPU on eBay and it had a pair of broken fan blades next to one another so I re-balanced it by breaking some more blades.
Inspired by this video: • Graphics card Fan blad... ... but the card in that video had 14 fan blades so it was obvious which one to cut for optimal balancing. My fan had 11 blades and two adjacent ones were broken so it wasn't at all clear which ones to break to balance out that situation.
So, I wrote a python script to calculate the center of mass for every possible combination of clipped blades by exhausive search, finding a blade clipping configuration within 1% of perfect center of mass.
Link to Python Jupiter Colab Notebook on Github:
github.com/iMammal/fan-balanc...
The Zotac RTX 3090 now runs great after redoing the thermal paste and pads. I benchmarked it on the Heaven benchmark and it stayed around 73-74 degrees C the whole time..... but I noticed that the HWINFO's Hot Spot detector showed some 83's..... not sure what those are all about. Didn't crash or anything though.
It was pushing about 140-150 FPS most of the time with max graphics/antialiasing/etc settings. Slowed down to 80-90s for some complex/busy scenes. 
Наука
thanks a lot, I had a broken blade and, eventually, with the vibration my video card got lose from the motherboard causing pc freezing and crashes, not to mention the annoying noise. You helped me a lot. The only difference is I tried with just the opposite blade and it worked.
Awesome! Glad it was usefull... or at least encouraging.
I have 11 blades, so as an odd number there wasn't an opposite blade.
I have 1 blade missing and the sound is so harash so u took 1 opposite blade off and it was fine?
Please help i had 14 fans total 3 broke off but it is 2 broken next to eachother then there is one there and 1 broken , there is 1 fan between the two broken to get to the 1 broken
Ok, I think I understand what you're describing. so you have something like this: X X 0 X 0 0 0 0 0 0 0 0 0 0 around the circle back to the beginning? (X is broken, 0 is not) Ok, I can plug that into the algorith. I'll reply with the solution in a few days.
isn't it better to just buy spare fans online ?
I've been to busy to rewrite my code but Paste a link to my github code into ChatGPT and tell it what to just commented about and ask it to rewrite it with your broken blade configuration
@@KagamiyaYeah that would be te best thing to do if you're not limited by time, money, or availability of parts. My fan is a bit hard to find and comes from across the world very slowly. Mine has been running find for months now with half of its blades and some new thermal paste.
I did have my eye on a replacement fan in case this didn't work so well.