Symptoms of a processor error can include
slow performance, POST beep errors, or a system that is not operating
properly. These errors usually indicate that an internal error has
occurred. Internal errors might also cause failures to be
intermittent. The CPU might begin a task, then fail. If the system
continuously counts RAM or freezes while counting the RAM, the CPU is
creating the errors and might need to be replaced.
Requirements for a CPU to work with a motherboard include
voltage, socket type, and clock speeds.
Cooling Issues
Most CPUs will have an onboard fan.
This provides cooling directly to
the CPU. If the system freezes after being on for a while, then the
CPU fan might be malfunctioning. The CPU is overheating and freezes
due to improper cooling of the CPU. Proper maintenance of internal
components will help prevent the costly repair to the CPU. Keep the
computer in a well-ventilated area, clean vents, ensure case slots are
replaced, and dust the inside of the computer. The proper cooling fan for
the specific CPU is also required.
CPUs can also become loose due to the expansion of metals when
heated and their contraction when cooling. Metal fluctuation will
eventually cause the CPU to loosen. Visually inspect the CPU, and
if it appears slightly loose, push it back into place.
Voltage Supply Issues
CPUs must be set to receive the correct voltages to run properly.
Motherboards that use Socket 5, Socket 7, or Super Socket 7 chips
need to use voltage regulators. Those that use Socket 370, slot 1,
slot A, or socket A use an automatic voltage regulation feature.
Figure
shows the different types of CPU designs. This capability allows the CPU to determine the voltage setting
automatically. Typically, the voltage regulators are built into
the board. They must be set at the proper voltage, or the CPU can
be damaged.
Properly inspect and examine the motherboard, CPU chip, and
motherboard documentation to find the correct CPU voltage.