KT4V-L won't boot after hard disk swap

Im new to this forum, so forgive if i dont give enuff info.  here is my problem:
I shutdown my system, turned off the power switch.  I then opened my case and swapped out a hard drive ( that had werked in the system before without trouble).  I turned on the power switch, I then tried to boot the system back up.  no luck!
I opened the case again to see if i forgot to do something.  nothing looked wrong.  So i put it back to the previous configuration, again, no luck.  So i looked at the "D-Bracket 2" and noticed that it was lit up with all 4 red LED's.   I looked in the manual and notice that the 4 red LED's mean that it is a defective processor(which i doubted very seriously).  I just happened to have an extra new 2400+ lying around (new in the retail box).  I swapped out the procs and still no luck!
bad mobo?
any ideas?

Quote
Originally posted by barcode-linux
Does this guy always link his site in posts about the KT4V?
Why yes I do....isn't freedom wonderful...

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