need X2 cooler advice

[ColossusX]

I have an X2 3800+ coming to go with an Asus A8N-SLI Premium board (w/ passive heatpipe on northbridge and mosfet)

I want to overclock, if I can, to at least 2.5ghz like my current 3200+ Winchester.

What HSF should I use...
I currently have a Thermaltake Venus 12 HSF which keeps my proc at 45-47C with a case temp of around 30C.
Will this be enough to cool an X2 OCd to the same level?

Replacement ideas are:

XP-90 with Panaflo
SI-120 with Panaflo
or CoolerMaster Aquagate Mini 120 (my prefered option if I have to replace)

The Aquagate is not much more expensive than the SI-120 combo, but I am worried about northbridge temps since the passive heatpipe relies on air movement from the HSF.

What do you all think? Keep stock AMD cooler, keep the TT Venus 12 or upgrade my HSF....

Thanks

 

[inveterate]

It should be Fine if u gotz the Copper one. The aluminum one ,, IDK. AS5+generally good case flow and u should be set.