|don't use overclocking profile, set it to manual.|
There are settings u need to set first
-lock pci e @ 100mhz
-lock pci @ 33.33mhz
-disable spread spectrum
-disable EIST aka speestep
-disable cpu enhanced halt CIE
-disable cia 2
e5200 2.5ghz fsb 800(200) 12.5 mult vcore 0.85-1.3625v. I assume u have ddr2 800. Underclock ram to ddr2 400 then pump fsb to 1333 (333 x 4) reduce cpu multi to 11 now cpu should run at 3663mhz and ram should run @ ddr2 667 (333 x 2) save settings and restart the system, if the system fail to boot disconnect power cord and either remove cmos battery or cmos jumper (the board manual should xplain). If the system boot fine but fail to load os try to icrease cpu voltage (0.1v).
edit: (260 x 12.5) this is your current settings right? (333 x 10) 3.3ghz or (333 x 9) 3ghz i believe this will be faster than your current "overclocking profile" settings.