Picked up a 5,2 a couple days ago and cannot get the machine to negotiate SATA II speeds. I have tried a known SATA II HDD with no effect. The laptop has no battery, no optical drive, and the 2GBs of installed RAM is PC2-5300 - not the PC2-6400 that shipped with it. An SATA I HDD came with the computer. The HDD I'm trying to use is a ST9500325AS by Seagate. The HDD that came with the machine is a Samsung HM160HI. Any ideas?