A while ago I got a Powermac G5 as a replacment for the previous G5 that would not turn on, not even so much as a light or fan spinning except for the very rare occation it would boot fine. Back to the current G5, I think it is also broken, and I'm the one who did so by mistake. I'm not very experienced with Macs, and these two are the only ones I have ever owned. It started with me wanting OSX, MorphOS and PPC version of Ubuntu on it, and I managed to set it up correct somehow. I was not happy with Gnome, as I also run Opensuse with KDE on an Intel machine, so I tried updating to KDE trough apt-get, but that didn't work as I got numerous errors and instabillity. I then found an old OCZ Vertex 2 SSD and decided to do a compplete reinstall. OSX and MorphOS worked well, but Opensuse PPC/Kubuntu didn't. On Kubuntu the installer would always crash when finishing the last settings window no matter if I hit next at once, or waited for it to install completely. On Opensuse I only got to Grub, and only later learned you had to find the core and load it. So I made an memory stick and tried via Openfirmware. Big mistake. I entered something like "boot ????\boot\ppc64le\grub2-ieee1275\core.elf"(I don't remember what ???? was) with the result that nothing happed, and after nearly an hour I turned it off. So when I try to start it now it chimes, but no picture on the screen at all, and fans will be very loud after a while. So tried reseting it by pushing the button on the motherboard. Made no difference , and the CMD - OPT-P-R command numerous times. After a while I noticed that the light under the mouse isn't on, so it may be that keyboard/mouse isn't working. Tried all the USB port. Same thing. I tried several different ram, and also swapping the grapichcard from old G5 to the new one, but with out any effect. So is there a way of saving this by reflashing Openfirmware, desolder it and replace it, or something else. It was such a good machine, so it would be a pity if it ended up as unusable because of this.