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CPU Heat - Check and be sure that there is proper ventilation and the fan is working. Diagnostics will test the fan for you. For notebook heat issues - use SPEEDSTEP (Intel) to lower the cycle speed (megahertz). Enable Battery Optimized Performance. The CPU must be sealed correctly with a thermal barrier (adhesive between CPU and motherboard) or it could cause heat problems.
Conflicts in system devices - Check the IRQ (Interrupt Requests 0-15) in the BIOS and reset the BIOS.
