A few years ago my Dell Inspiron 560 stopped working. The power light remained orange, but recently o managed to get it to work for a while. When I turned it off, it wouldn’t turn back on, and when the power supply was connected to an outlet the power button light would stay orange, and when i would press it the fan in the PSU and the cooling fans would all turn on, but the light remains orange. I replaced the CMOS, used a different PSU, but nothing works. Should I consider buying a new motherboard, or is there a way to fix it? Thanks.