Hello again Davet50.
I have the mini tower case, if that is what you mean.
Sorry about the delay responding to you, I used to be e-mailed when someone responded to one of my posts.
Appreciate any help.
From looking at your manual I would suspect that the power button would be part of the I/O panel. which you remove according to HERE <ADMIN NOTE: Broken link has been removed from this post by Dell>
Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
Dell Studio XPS 1645 Window 10 Pro
Forum member since 2003