http://www.costcentral.com/product-list/Processor_Upgrades/70

http://www.orpheuscomputing.com/computers/AMD_processors-CPUs.html

http://www.bizrate.com/cpus-computer-processor-upgrads/pentium-pro/

http://www.dnbcomputer.com/learning-center/processor.html

http://www.orpheuscomputing.com/computers/processors_cpu.html

http://www.powerleap.com/

http://www.computer-adviser.com/acer-aspire-5050-processor-upgrade.html

http://www.ehow.com/articles_3340-computer-upgrades.html

http://upgradeit.ca/index.html

http://www.computerhope.com/forum/index.php?topic=11984.0

http://www.bizrate.com/cpus-computer-processor-upgrads/processor-speed--/brand--amd/products__att11--1324__att11--1324-__att259--1143__att259--1143-.html

http://www.thefind.com/computers/browse-amd-athlon-64-computer-system

http://shopping.yahoo.com/s:Processors%20and%20Upgrades:4168-Brand=Tyan%20Computer

http://www.ehow.com/how_2301018_upgrade-processor.html?ref=fuel&utm_source=yahoo&utm_medium=ssp&utm_campaign=yssp_art

http://www.hinsdalelibrary.info/wp-content/uploads/2009/05/tech-talk-computer-upgrades.pdf

http://www.smarter.com/---se--qq-computer+processor+upgrades.html

http://computers.become.com/processor-6gb?&kd=103249677&tc=8

http://spendoo.com/1319-buy-cpu.htm

http://www.fastrepairpc.com/home.nxg

http://www.computeruser.com/articles/2109,5,18,1,0901,02.html