It looks like you came with a pentium at 35w originally, most i7's are 45w, so that may be an issue, you do have a PGA CPU, so it's removable, and Toshiba isn't one of the manufacturers that do hardware locking/whitelisting too much (like HP), so you'd probably be able to get away with an upgrade, i'd just make sure you find something with a low TDP (there are low power i7's at 17-35w) and i will venture to say it should work.