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Where is “here”?

You might want to check out the member listings at https://www.datarecoveryprofessionals.org/

These organizations generally seem to hold themselves to a “better” standard than the rest of the industry.

expect to pay a lot for zero results

Industry standard for data recovery specialists is “no data, no charge”

This case is due to a logical problem. Cleanrooms are only necessary for physical repairs, like swapping the Head Stack Assembly.

DriveSavers’ cost of entry for a successful recovery is about $2,000. They’ve even given that quote to an iPhone user who needed nothing more than a screen replacement.

Their “state of the art facility” is appropriate for hardware cases where money is no object and you need the best of the best to deliver results no matter the cost.

Realistically, most regular people will be well taken care of using a reasonably priced service like 300 Dollar Data Recovery.

That whole cast really

a USB stick is enough

No, it’s really not. In addition to failing abruptly and often unpredictably, flash based media will suffer from bit rot when left unpowered for extended periods of time.

The “3D” graph is really just GPU utilization. There are other aspects of the system that will utilize the GPU, like the Desktop Window Manager or Hardware Acceleration in your web browsers.

You’re going to want to make sure the noise is indeed coming from the graphics card. CPU will also fluctuate in load / frequency and most fans’ speed logic is bound to that.

I’ve found that, a lot of the time, this repeated “revving” is the result of something crossing a threshold in the fan curve. Adjusting the fan curve can help avoid that crossing that “cusp” back and forth.

I once hung a TV level to Earth’s gravity. And then I found out that the floor and ceiling weren’t level, so the TV looked crooked anyways.