Hi, I actually completely changed the power supply twice (open the computer, remove the old one and put and plug a new one) in the last month. The first time when I try to install a second hard drive. After I installed the hard drive in the computer I had to change the power supply because it didn't work anymore. I was unable to configure the hard drive with Windows and took it off, then partitioned my Windows hard drive. A few days later or maybe a little more than one week I couldn't turn on the computer anymore. I changed the hard drive and reinstalled only Ubuntu. Then I moved my computer. There was blue light in the back and I had to completely change the power supply again. The person who had changed it the first time told me that from the series of three he had installed it was the second that broke. Would I see it if the capacitors on the motherboard were leaking? When I open the computer I don't see anything wrong or maybe I'm not seeing anything because I didn't saw it before, but it seems to be the same than my son's computer except not installed the same way. Can I wait before to see a computer guru or will it become worse if I wait a few months? Not speaking about it can stop to turn on completely or shut off by itself, just the problem it apparently have and a risk to make more damage to the mother board or anything else. Do you have any idea why it turned back on when I changed the hard drive? Thank you Megan <div>On 9/19/07, Doug Rintoul <<a href="mailto:courtjestr@gmail.com">courtjestr@gmail.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Marc Rios wrote: > What you says seems to be hardware problem... try to check it with > memtest86... I doubt that Megan's problem is with memory. It is possibly the power supply in the computer or more likely some capacitors on the motherboard are defective. I have seen these symptoms many times when the capacitors on the motherboard break down and start leaking. Megan, when you said you needed to change the power supply, did you mean that you plugged it into a different socket or that you removed the power supply from the computer and put in a new one? At any rate, I think you are going to need a hardware guru look at your system. These symptoms would not be caused by a virus or any software problem. Doug. -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users"> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div>