I hold a up to date gateway laptop. The admirer seem to run at different speeds or not at adjectives. Is this regular?

Answer:

Very regular - it is a variable speed lover - according to how much heat is self generated.
Yes..it's a mutable speed fan. When the laptop is cool, it runs slow to stockpile energy. When it's hot, it speeds up.
Yes it is anormal when cpu usage is big it rotates a little bit difficult spped and then comes to the mundane position.