[aexin]

The thing to the left of the box with the tubes is the fan. (I know you probably know, just to clarify)

[markkleb]

The thing with the tubes is the Radiator. The fan is between it and the case. On the back of the case will be 4 screws or Pins. If you remove them the rad and fan will lower (careful and support the Rad so you dont mess up the hoses)

Between the Rad and the Fan is a adaptor.

Than remove the fan from the Adaptor/Rad and replace with a new 120mm fan.

Get a good fan like this one,
http://www.svc.com/fba12g12m-nba.html

[Tox1cThreat]

See, posting a piciture DOES help

[aexin]

Thank you so much!!!!!

[aexin]

Oh, sorry, and one more thing do you know what those things are use for in my computer? They are like grills or something on the bottom right side. Not the outside vents, the inner things with screws. Directly unders the HDD

[markkleb]

against the mobo wall the preforated metal is for ventalation. Below the HDD is a rack that is made to house more HDDs. The pieces in the sides are rails that other HDDs slide into.

Good picts....

[aexin]

thanks marklebb, do you thing this fan would also work in my system
http://www.frozencpu.com/fan-197.html

[markkleb]

It might make more noise and last a lot less (its more flash than a good fan)
It will work but one like the style I showed you is better.

[aexin]

kk and do all case fans pull air thru the case like the one i have now? or do you just position backwards?

[markkleb]

air should get sucked in the front of the case and blown out the back. You just flip the fan over to change in/out.