Quick question about mounting a CPU WC block?

[AFK_Matrix]

Does the CPU have to have its IHS removed to fit a Storm G4 Waterblock? Or can you just mount it with the IHS on, as I have never removed one of these and knowing my luck will completely bodge it. Can i just yank off the xp 120 i have and put the CPU block on?

 

[AFK_Matrix]

Yeah just someone said in another thread that the alphacool nexxos block works well with ihs less cpu's and that got me thinking. But new to all this so thought I would check thanks.