Disassembling GTX1080 after three years of mining

Is mining as dangerous as sofa experts tell about it? Let's try to figure it out using the example of the GTX1080 video card from Inno3D.

The video card came to me by accident from a friend of the miner, who bought all 3080 at the start of sales, so there was no room left for 1080 on the farm. Well, and giving video cards to gamers who mercilessly exploit them in windproof cases and overclock them in every possible way is just vandalism. Not every video card can handle this.

The card worked for a little over three years without opening it (dust blowing does not count). Outwardly, everything is in place. The only thing, when working at high speeds, one cooler rattled slightly.

Pay attention to the yellowish color of the backplate and casing. Black-painted Inno3D products tend to turn yellow when exposed to sunlight. On the second-hand market, I once saw several absolutely yellow cards from this manufacturer. So the card clearly worked outdoors.

But the back plate has retained its original color and looks like new. Usually, the metal strips of video cards operating in harsh conditions are covered with light corrosion, which is clearly visible upon examination. In this case, the manufacturer did everything right.

Unscrew 8 screws on the backplate and "halve" the card. There are two problems. Quite a large amount of dust and thermal paste dried to the state of a stone, which had to be literally scraped off with a knife.

Drops of some kind of liquid (probably silicone) appeared on the thermal pads, but they did not lose elasticity.

After I removed the dirt, the graphics card looked a little more presentable. Unfortunately, it was not possible to completely remove dirt particles from the rough surfaces of the radiator (it looks like unpolished parts are some kind of Inno3D trick).

It remains to apply a new thermal paste (Gelid GC-PRO) and reassemble the card. After assembly, you still need to deal with the rattling turntable. For this I use a low-temperature, low viscosity grease. Gently snap off the impellers and stuff the grease into the bushing, after removing the remnants of the old one.

Checking the temperature of the video card under load.

If before disassembly, the temperature in the Shadow of the Tomb Raider benchmark (at maximum settings) practically hit the 85 ° C limit, ...

... now the card only heats up to 67 ° C. Not bad.

The temperature at rest also dropped slightly.

However, if someone thinks that the card was heavily fried in mining with dried thermal paste and now it can only be turned over for nonferrous metal, then alas.

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Temperature in mining before changing the paste ...

and after replacement ...

Here the effect is much less (61 ° C versus 57 with the same PL) due to the fact that the cards operate at reduced power. In addition, often for better cooling, miners organize additional airflow on the cards, which allows heat to be dissipated, including through the board.

As a result, I did not see any serious problems except for the thermal paste that dried up over three years.