by hikaru » Mon Nov 29, 2010 12:30 pm
If you are looking for a replacement motherboard the only other I can tell you for sure is the one of the Xa 2529. Actually it's the same board, the difference between the two model is just the WLAN adapter.
As for the CPU thee is not much you can do. There is a "Trinidad" and a "Tyler" version of the TL-60. The former has a TDP of 35W while the latter has 31W. So in theory it should run slightly cooler but I guess you won't notice any actual change if you now have the Trinidad and would switch to a Tyler. Unfortunately there are no CPUs for your socket that have a significantly lower TDP.
Instead of replacing the CPU, renewing the thermal paste might significantly reduce your temperatures.