So you get no input in the sense of the screen?

If not then I need you to remove all sticks of RAM present and then start the machine. If it continues too beep then it seems the motherboard is in...

Did you disasemble your case to correct the faulty button? Allot of the hardware in the system are verry touch sensative. Maybe you have knocked one of the wires out that leader from the button to...

No problem (that is if I have helped :P)

Try putting the sound card back in (the one you had the problem with) and clear your CMOS. This may help your system identify the two together.

Yes clearing the CMOS sounds like the next step. Other than that you may have to find someone else with a 1GB stick of DDR and see if theirs works any better, by this I mean one that doesn't need to...

Have you tried removing your motherboard from the case and removing exccess parts one after another until you utilise the problem?

I'm not sure have you searched for a program? I know Windows uses the NTFS file format and I have forgotten the UNIX format you may need to google it.

It sounds more like a dodgey stick of RAM, I know AMD motherboards can have the funnies but it is unlikely. I have had an eMachines Intel Celeron M system and that had a 512MB RAM that I upgraded to...

Yes sorry I haven;t replied, the RAM with the higher frequency should clock down to the maximum supported frequency of your motherboard.

The reason DDR RAM is so expensive is due to the fact that...

Wich version of Vista and Ubuntu did you install x86 or x64? (32 bit or 64 bit)

If they were 32bit versions then you are likely to come across issues like this as the 32bit architecture can not...