CEP2 and HDD speed.

[JimF]

SSD host writes before the CEP2 project 1.2T, after 5 days 8 work units 3.3T.

Pagefile is disabled so it uses the ram, now imagine if the pagefile was also enabled on the SSD

How much RAM do you have? I run a quad-core, with 8 GB RAM and a generation 1 SSD. It runs up to 4 CEP2 work units at a time, and while I see a lot of disk activity, it is nothing like that. I have the pagefile set to 1 GB minimum, and it has never increased beyond that. But I don't use that PC for anything except WCG and Folding@home, so no games or even web browsing.

And I am using Win7 64-bit, which can make use of all of the memory. Are you using a 64-bit OS?
My CPU efficiency on BoincTasks shows up at 96% on CEP2 jobs, so it is not thrashing much. But it took a firmware update on my SSD to get that.