Shuttle No-Boot :(
Urm. My shuttle (a SS56L ) with a P4 3.2 ghz prescott inside, started off fine, it did post, and allowed me to get into the bios etc.. and boot from a CD (nothing on the HDD).. I have taken it apart and re-assembled the entire thing, the other bit is that the ATI radeon 9800pro gfx card i have in there seems not to work, yet when the pc "decides" to POST (seems to me to be random) the only way to get a VGA signal from the PC is to use the on-board gfx, and there doesnt seem to be an option in the bios ( on the occasion i can bring that up 
) to switch between the two. the card does have power etc etc etc.. as the fan on it switches on and comes to life, and it is fully working if i stick it in another PC. Now, the pc just switches on, doesnt post, the keyboard status lights flash once, then the pc appears to hang, with no signal going to the monitor, and all the fans on and lights etc... the hdds and dvd drives appear to be spinning up :o
please help its really urgent
edit:: keyboard lights not even flash now there is also power to the NIC, and thats on all the time, as is the power to the USB and PS/2 ports :o
) to switch between the two. the card does have power etc etc etc.. as the fan on it switches on and comes to life, and it is fully working if i stick it in another PC. Now, the pc just switches on, doesnt post, the keyboard status lights flash once, then the pc appears to hang, with no signal going to the monitor, and all the fans on and lights etc... the hdds and dvd drives appear to be spinning up :oplease help its really urgent
edit:: keyboard lights not even flash now
there is also power to the NIC, and thats on all the time, as is the power to the USB and PS/2 ports :o 0
Comments
-Your shuttle system isn't booting consistently
-When it does boot, only the onboard graphics work
-BUT The AGP card works fine if you put it in another system
Is that right? If so, clear the CMOS on the motherboard and try booting it again. If that doesn't work, disconnect everything from the motherboard except the atx power and the power switch lead; since it has onboard video, take out the video card too. You should be left with just a motherboard, cpu (with the heatsink/fan assembly attached) and a single stick of RAM. If it still doesn't boot, try some RAM that you know is good out of another computer. If it STILL doesn't work, swap the CPU. And if it's still not working, you have a dead board.
I'd say that it's pretty likely that the board is dead, but the only way to know for sure is to debug it the way I described above.
be more verbose