Originally Posted By: julf
Can't seem to get into the hardware test.

It may not be on the hard drive. http://support.apple.com/kb/HT1509 has more info on the hardware test.

Apple has a full kernel panic doc here: http://support.apple.com/kb/TS3742

This covers the general order Apple recommends for troubleshooting this to narrow it down between a software issue or hardware problem.

Holding down Command-V is supposed to also force kernel panics to be verbose, dumping to the screen potential useful info.