Understanding Timings & Clock

For Black Friday, Newegg has two cheap RAM:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820227364&cm_sp=DailyDeal-_-20-227-364-_-Product
OCZ Fatal1ty Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066
7-7-7-20


http://www.newegg.com/Product/Product.aspx?Item=N82E16820231145&cm_sp=DailyDeal-_-20-231-145-_-Product
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1000
5-5-5-15


My computer currently has:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231098
G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800
5-5-5-15


What will happen if I buy the G.Skill pair? It has the same timings but it has a higher clock speed. What will happen if I buy the Fatal1ty pair? Both timings and clock speed are different. Are these differences a cause for instabilities? And why does the Fatal1ty RAM have such slow timings? I thought it was a high end brand. Also, I am aware that I will need to go to a 64-bit OS to fully utilize these.
2 answers Last reply
More about understanding timings clock
  1. if your bios work correctly, they will underclock the gskill to the 800, if not, change it yourself.
  2. Will the Fatal1ty's timings be lowered to my current 5-5-5-15 or is it only possible to elongate the timings?
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