I read most of the sticky but saw mostly arguments about whether or not emachine PSU's were a problem. They are. Ok, I am trying to repair an Emachine T1742 and it's driving me nuts. Basically the PSU died which is apparently a common issue with these beasts. I replaced it, but it seems to be having some residual problems. It initially had a 250W power supply but now has a working 400W. Now, no USB ports work. I have checked all the connectors and updated all of the motherboard drivers in Windows to no avail. I also uninstalled and reinstalled all the USB devices in the device manager. There are no exclamation points or question marks in the device manager. I checked the IRQ assignments and there don't seem to be any conflicts. If I plug a mouse in, it appears to find it, the little "new hardware" icon appears in the taskbar and then goes away without the mouse every working or anything obvious being installed. The mouse IS receiving power and the laser is on. I also tested with a PS/2 keyboard and USB keyboard and it only works with the PS/2. I have tested all 4 of the back ports and the 2 front ones. After reading a bunch of posts from people with similar problems, I would like to try flashing the bios. This is apparently really hard to do with an emachine. Eventually I discovered that it's a Trigem Imperial mobo and found the appropriate bios update on e4allupgraders.info/dir1/support/oem_bios.shtml However, it's a Phoenix Bios and the provided PHX_winphlash.zip utility doesn't accept the .bin format which is what the above file is... What can I use to backup and flash this BIOS? Thanks!