I have an old Ibm Intellistation Z Server. A few weeks back, I went to install a cd writer and spare harddrive. That was the last time it boot up. I have tried everything that I can think of to fix this problem. I have disconnected the cd writer and HD that I installed as well as every other HD and floppy. I have replaced both the motherboard and power supply. This machine is still dead. It turns on, both the hd led and power led turn on and it appears to read the cdrom. And that's as far as it gets. I have no idea what else to try. Any ideas?