I’ve been seeing a trend with the hp Nettle 8 motherboards, I have had two or three come in with a full load of ram, and exhibit random crashes, boot issues, and being in general unstable. In most cases, I have had to replace the motherboard in order to resolve the issues.
— Update Monday March 28th, 2011 —
In rare cases, pulling the All-In-Wonder card, has stabilized these machines. However it has only been about 1 in 5, that this successfully resolves the random issues.