damn.. my opy 170 fail to prime in minutes on core1 at 2.5gig.. but it passes superpi32M.. dunno why.. won't even boot at 2.6 at any voltage.. at 2.4gig is stable both superpi32M and prime95 for all24hrs.. dunno what to do.. tried to loose ram timimng to 3-4-4-8 from 2.5-3-3-7 but also fail to reach 2.6gig.. errmmm.. what to do?.. noobie here.. this time i try to do it myself.. before this my fren oc it for me n it reach 2.5gig superpi stable.. not i try i myself n now downclock to 2.4gig

my rig
opty170 0541
2gb ram infineon ddr333 (2.5-3-3-7 to 3-4-4-8) - don't know wether 2.5-3-3-7 is original or tweaked by my fren
biostar NF4U-A9 mobo..
xp120 with 120fan n table fan (open casing)
coolermax 600wattpsu
gto2 16pipes std clock..