I know you are learning English, which is not a small task, but it is still hard to understand some of the things you write. At any rate, you told him to use 3.5-367, but this revision is old and outdated. Even if just "temporary", that still amounts to recommending an unsupported build. Again, at the very least, you have to mention that such builds are not supported at all.
I also tried to help him solve his issue. His hardware could be throttling itself because of excess heat (a common issue) so I'm waiting for him to post the results of his CPU temperatures.
I also tried to help him solve his issue. His hardware could be throttling itself because of excess heat (a common issue) so I'm waiting for him to post the results of his CPU temperatures.