System time won't stay set.

Depending on the age of your desk it is either a battery or a supercapacitor. Before you bust out the tools, try this. Plug your console in and turn it on for 24-48 hours. Then reboot and see if it keeps time If it does, that was your problem. If it does not, you are looking at a replacement. Your solder skills should be your measure of whether you want to accomplish this yourself or if you want to involve a service center. IRRD, this is either a thru-hole solder part which is pretty easy if you are skilled and have a fine point tool or a surface mount chip which requires expert level solder skills and some specialized tools. If you can open your desk and take a picture of the left-hand side we can get a better idea of what you have.  Also on that left-hand board will be a sticker with a part number (41 something) and a revision. That will help.

Depending on the age of your desk it is either a battery or a supercapacitor. Before you bust out the tools, try this. Plug your console in and turn it on for 24-48 hours. Then reboot and see if it keeps time If it does, that was your problem. If it does not, you are looking at a replacement. Your solder skills should be your measure of whether you want to accomplish this yourself or if you want to involve a service center. IRRD, this is either a thru-hole solder part which is pretty easy if you are skilled and have a fine point tool or a surface mount chip which requires expert level solder skills and some specialized tools. If you can open your desk and take a picture of the left-hand side we can get a better idea of what you have.  Also on that left-hand board will be a sticker with a part number (41 something) and a revision. That will help.