what type of chips there are on these ram?

[scampi]

Hi..first of all this is a very beautiful forum and I'm italian, so my english isn't very good...
so..
Can you tell me what chips there are on these type of ram?tccd?

1-OCZ Gold Revision 2 pc4000 (ddr500)
http://www.newegg.com/Product/Product.asp?Item=N82E16820146844

2-OCZ EL pc4400 (ddr550)
http://www.newegg.com/Product/Product.asp?Item=N82E16820146986

3-geil platinum pc4000 (ddr500)
http://www.newegg.com/Product/Product.asp?Item=N82E16820144516

thak you very much..

[jot]

OCZ R2 Hynix OCZ EL TCCD Geil Hynix D43