From all that tweaking it's looking like your CPU is unable to cope with 2.5Ghz even at 1.55v. Unlucky mate.
The San Diego 3700+ is on offer this week at only ~£110 if you fancy getting another CPU to try for ~2.7Ghz and you could sell your winnie in the MM.
The San Diego 3700+ is on offer this week at only ~£110 if you fancy getting another CPU to try for ~2.7Ghz and you could sell your winnie in the MM.