Hi, have you had a look to see if there's anything coming into contact with the fans?
Any more description about what is happening? Does the clicking only happen when playing games, does it happen constantly as soon as you turn the PC on etc. etc.
Provide as much description about your issue as you can give - it all helps
If you also post your order details here too it'll be a big help (link below to tell you how etc. if its of any use).
NB: These forums are not an official support channel. None of us work for PCS, we're all either customers or techies who just like to help out where possible. For any official support, you need to contact PCS directly either through your PCS account, or via the contact details on the main...