Turn the tower over on it's side with the Product Key facing upward. There is also an arrow on the bottom showing with side should face up. Now push the buttons on the bottom and top of the tower and pull up. That should be it.

Thanks for the info.  I did not realize this was a "clamshell". 

I am accustomed to removing a side panel to access motherboard.

Jim .

 

Glad I could help!

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@zaaz2325 wrote:

Where can I find this info on how to open this &*% thing. 

In the manual...  If you lost it, it's under the reference tab above including info on how to install things. 

thanks Rick.  nice website

Jim

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@zaaz2325 wrote:

thanks Rick.  nice website

Jim

Glad to help, and thanks for the compliment.