I've had my Biostar TA790GXBE on the bench for a while but got round to ziptie-ing the fan to it yesterday and put it in the case but now it doesn't power up. When I switch the PSU on I see the board LEDs flicker on briefly, which is what they've always done so obviously power is getting to the board, in part at least. I've taken it back out the case and it still won't power on. The thing is, the board has power/reset buttons built onto it and the power one stopped working some time ago but as I could still power it with the switch attached to the front panel header block I wasn't too bothered. So perhaps there's a problem in that area that's spread to the header block as well now? Could it be a dry joint? I guess I could try and fix it myself if so, but if I'm lilkely to send it back for repair I can't mess with it at all. I bought it on 3 June 2010 though so I doubt it's still in warranty. It's a real pain because I was planning to send this PC to my brother for his birthday in 3-4 weeks. He's got the box for the motherboard, so if I have to send it for repair I'll have to get him to post that to me before I can send it off and then who knows how long it will be before I get it back. I thought I could buy another motherboard if it's possible to get one that's more or less the same (i.e. 790GX chipset) so that I won't have to reinstall Windows 7 x86 from scratch and then sell the repaired Biostar board when I get it back. If I'm going to do that I need to make sure there's a SLIC BIOS mod for whichever replacement board I get though and that it has much the same features/connectors, etc although I guess I could switch to a DDR3 board and sell the DDR2 RAM.