OK, I have a lifetime Series 3 (OLED/250GB) that is now in the dreaded reboot loop. I had this happen on another lifetime Series 3 (500GB), but it turned out to be the hard drive. Once it was replaced (& reimaged), it worked fine & is still going. Not on this one though. I removed its hard drive & ran the WD extended test. Everything came back clean. I even slipped this hard drive into the (previously mentioned) working series 3 & it worked fine so I know its not the hard drive & that is good. Now, I did notice a cap was bulging so I took it to a local shop that wound up charging me about $18 to fix it. However, after re-installing the power supply, its still rebooting. Even tried the working Series 3's (500GB) hard drive in it and no luck as it still reboots. So apparently that is not the only cap that is bad. I probably should have stressed checking ALL the caps the first time around, but I don't think I did and simply pointed out the bulging one. Live & learn. I might take it back to my repair shop and see if they can replace the needed caps? Are there specific ones that go bad? If so, which ones? Is there maybe some online tutorial or picture of the ones that tend to be bad so I knwo the location of them (since there are numerous ones on it). Or are they all pretty much going to go bad at some point? I thought about trying to do it myself as I have heard its not hard at all. Have never really worked too much with soldering so this is why I have just had a local place do it. They give free estimates so it might just be easier to see if they can do it, but wondering if I should point out certain ones to them that might be bad.