Part Compatability?

[yo_yo2400]

This is my first white-box computer and I don't want to buy all the parts then find out I messed up on one and it wont go together. These are the part links.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820144383
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131633#spec
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103818
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.360003
Planning on trying to unlock a core or two on the Phenom. Will all of this work together and is that enough fans? Thank you in advance. Also if you know any different better combinations please feel free to post.
Note: Yes i know not all can have cores unlocked.
This may be a dumb question but can you put DDR2 in the mobo if it supports DDR3? Probably no j/w.

 

[o1die]

DDR2 and DDR3 aren't interchangable, so the answer is no. The antec 550 ps is marginal for your system; what video card do you plan to use, or will you use the onboard video?

 

[yo_yo2400]

DDR2 and DDR3 aren't interchangable, so the answer is no. The antec 550 ps is marginal for your system; what video card do you plan to use, or will you use the onboard video?

atm onboard video is what im planning on using not for too long though. When i do get a new video card it wont be top of the line. Could you recomend any power supplies then? how many watts am i going to need?

 

[o1die]

You can use up to a 4770 or 5770 with the 550 antec. If these video chipsets are adequate, then you should be fine with the antec. The 900 combo for $25 more with 600w ps is also a good price. If the noise from the 900 is too high for your liking, you can simply unplug some of the fans.

 

[saaiello]

http://www.tomshardware.com/forum/279391-28-power-requirements-specs-popular-graphic-cards-guide

 

[yo_yo2400]

Noise isn't a problem ever but how do you tell if a power supply will fit in a case if its not a combo?

 

[saaiello]

99% of cases use ATX standard power supplies.

 

[yo_yo2400]

thank you

 

[yo_yo2400]

Is their a place to check what type of power supply a case uses? I can only find mobo size?

 

[saaiello]

It will say ATX Mid tower or Full tower as long as it says ATX your good. Usually its only server and workstation cases that are different and sometimes HTPC cases uses different size.