Editing Overclocking (section)

=== General ===

{{Original research|section|date=December 2011}}
* Higher [[clock rate]]s and voltages increase '''power consumption''', also increasing '''electricity cost''' and '''heat production'''. The additional heat increases the ambient air temperature within the system case, which may affect other components. The hot air blown out of the case heats the room it's in.
* Fan '''noise''': High-performance fans running at maximum speed used for the required degree of cooling of an overclocked machine can be noisy, some producing 50&nbsp;[[Decibel#Acoustics|dB]] or more of noise. When maximum cooling is not required, in any equipment, fan speeds can be reduced below the maximum: fan noise has been found to be roughly proportional to the fifth power of fan speed; halving speed reduces noise by about 15&nbsp;dB.<ref>{{Cite web|url=http://www.hse.gov.uk/pubns/top10noise.pdf|title=UK Health and Safety Executive: Top 10 noise control techniques|access-date=2011-12-30|archive-date=2019-11-26|archive-url=https://web.archive.org/web/20191126163348/http://www.hse.gov.uk/pubns/top10noise.pdf|url-status=live}}</ref> Fan noise can be reduced by design improvements, e.g. with aerodynamically optimized blades for smoother airflow, reducing noise to around 20&nbsp;dB at approximately 1 metre{{Citation needed|date=December 2011}} or larger fans rotating more slowly, which produce less noise than smaller, faster fans with the same airflow. Acoustical insulation inside the case e.g. acoustic foam can reduce noise. Additional cooling methods which do not use fans can be used, such as liquid and phase-change cooling.
* An overclocked computer may become '''unreliable'''. For example: [[Microsoft Windows]] may appear to work with no problems, but when it is re-installed or upgraded, error messages may be received such as a "file copy error" during Windows Setup.<ref>{{Cite web|url=http://support.microsoft.com/kb/310064/en-us|title=Article ID: 310064 – Last Review: May 7, 2007 – Revision: 6.2 How to troubleshoot problems during installation when you upgrade from Windows 98 or Windows Millennium Edition to Windows XP|access-date=September 4, 2008|archive-date=May 15, 2009|archive-url=https://web.archive.org/web/20090515131653/http://support.microsoft.com/kb/310064/EN-US|url-status=live}}</ref> Because installing an [[operating system]] is very memory-intensive, decoding errors may occur when files are extracted.
* The '''lifespan''' of semiconductor components may be reduced by increased voltages and heat.
* Warranties may be voided by overclocking.