How to upgrade the old P4 machine? ? ? ? ?

Users questions: Home machine I want to play CS can be quick, do not know can not upgrade! ! Upgrading memory is good or upgrade CPU? ? Graphics? ? Now the preparation is as follows - 2002 Rui Li TCL bought the desktop, P41.7GCPU (478 pin), GFO464MDDR graphics, 512 MbDDR533 memory, CJ 40G5200 turn hard, ordinary CD drive, 8139 card, the motherboard is sis650-740, ADSLMODEN, 17 flat screen CRT monitor ... . Ask about how much energy this equipment? ? ?
Experts answer: I The machine was in 2003, even lower than your configuration. Now I had a new change, and change the motherboard, memory, processor, graphics card, spent about 3000. Do not know how much money you spend to upgrade it? If you want, then less money would go to add a memory up on it, CS of the graphics do not ask Without changing the. How much you want for the future can contact me, I would get back to you specifically.
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