Open up the case and make sure all the fans are running, You may want to get some canned air and clean it out a little, The 3 main fans are located in the power supply, CPU, and Graphics card if you have a higher end computer. If these fans do nto work after cleaning and freeing them up so they are not caught on anything then I strongly recommend replacing that bad fan or fans or upgrading before it becomes a rather expensive issue.
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Open up the case and make sure all the fans are running, You may want to get some canned air and clean it out a little, The 3 main fans are located in the power supply, CPU, and Graphics card if you have a higher end computer. If these fans do nto work after cleaning and freeing them up so they are not caught on anything then I strongly recommend replacing that bad fan or fans or upgrading before it becomes a rather expensive issue.