Many thanks for your response and apologies for the delayed reply. Starting via eject button produces the same result unfortunately. I will find some time this weekend to open it up and see if there's anything obvious. Thanks once again for taking the time to think the problem through and for your r...

I have an old device which doesn't power on any more. It probably hasn't been used in 4 years. I didn't build it myself but I think it's an Xecuter X3 chipped Xbox. There's a panel on the left hand side of the device with 5 jump switches which I think have been altered, unfortunately. When you try p...