Cant overclock my FX55

[Platinum]

Ok so im now on air cooling again after a incedent with the water cooling.
And for some reson i cant seem to overclock my FX55 by much at all.
Heres my system specs :

FX55 with XP120 cooler and Panaflo M1a fan
Abit AV8
1gb OCZ PC4400 EL Gold
XFX 6800GT
SB audigy 2
2x Raptors

Now the mobo overclocks it slightly at stock and bumps it to 204FSB and even this isnt prime stable, I have to up the volts to 1.55 to get stability here, moving to 210 FSB I cant get it stable, tryed up to 1.65v with no luck, I notice the Hexus guys got to 216 FSB with ony 1.6v which makes me think that theres possably something else here holding me back?

Any advice is appreciated

[Steve]

You're just gone from a waterblock to an hsf. Did you reapply the TIM properly? And, did you check the hsf is mounted nicely?

They're the only two I can think of.

Blimey, you've got the XP120... quite a mammoth cooler.

[Platinum]

Yea that was my first thought as the hsf is very tight at mounting, checked 3 times now, even reapplyed paste on the morthbridge heatsink.
Temps go above 60 but heatsink doesnt get that warm, looking at abits forums it seems there is a issue with this board in that it doenst record temps correctly.