i need some advice n help..currently running q9550 @ 4.2GHz 8.5x495..

my questions are:
1. why i can pass 15min OCCT test but will freeze during 3min prime..(this during 500Fsb n above)
2. everytime i change gtl from auto to any numbers, comp will fail to boot.
3. how can i achieve over 500 fsb with this proc. my mobo Giga p45 ud3p bios f10e..

vcore 1.33x in bios..cpu-z 1.31v
vcmh 1.38v
fsb 495x8,5
ram timing auto 5-7-7-23
vdimm 2.0v
ram 495 1:1
pl9
pcie 101

other than is on auto..

hmm,tried just now..all seems doesnt work..tired looking the bios now..

my eyes was sick wor..spend so many hours tweak here n there..

whenever i lower the vtt from1.38v , cant boot,

if upper a bit vtt from 1.38v, comp will freeze in prime..

same goes to vcore..more than 1.4v in bios feeze while prime 3min..lower vcore abit can survive about 20mins prime..haih..

for now i let it auto settings since if put around o.7xx comp not boot.

this night gonna continue again..can i play gtl over 0.9xx?? i found out what makes it bootable when play over 0.89x-0.9x...

bro, try multiplier x8 instead 8.5 with 1.37v. (look how cool the toy running with 24 hours prime95)

last time mine achieved 4.21GHz with 1.37v (test prime95 36 hours fail)