My CPU is overclocked, how can I undo this?

[Mark Hoffman]

Hello, I have a AMD x4 945 x4 processor, I bought this computer from someone and he said it was at 3 GHZ but CPU-Z says its at 3.6. Now I don't I'm going to be needing the extra speed. How can I undo this? And will underclocking to stock speed make my PC less loud?

Thanks in advance.

 

[jaguarskx]

You should be able to go into the motherboard's BIOS (usually pressing F2 as the PC boots up) and simply reset the BIOS back to factory settings.

Underclocking does not necessarily means your PC will be less loud. The problem could be that the CPU heatsink fan is simply loud. You may attempt to adjust the fan speed in the BIOS if the option is available. Setting the fan speed too low can cause the CPU to overheat.

Noise is basically caused by moving parts and that generally means fans, hard drives and optical drives. Most noise comes from the various fans (CPU, GPU, Power Supply, intake / exhaust fans) since they are always spinning when the PC is on. You may need to replace them if they are too loud.

Replacing the intake / exhaust fans is simple. Just buy new ones.

Replacing the CPU fan may or may not be easy. It depends on the heatsink. If the fan is integrated into the heatsink, then you need to buy a new heatsink. If the fans are detachable, then just buy new fans.

Replacing the fan for the GPU is generally possible if you can find a compatible heatsink fan combo for your specific GPU.

Replacing the fan in the power supply is generally not recommended since it requires you to take the PSU apart. Accidentally touching a capacity can cause it to discharge and can be potentially lethal. It does not take much current (amps) to kill a human being.