Changing motherboards for FSB overclocking, shooting for 266mhz 1:1 reccomendations?

[Acanthus]

I'm thinking IC7

I have an Asus P4P8X but theres a clock wall between 245 and 250fsb i cant seem to break.

CPU temps are only 40C at load.

Northbridge temps were 110f but after adding a fan they are 98f at load.

All voltages are dead on, raising the Vcore didnt help at all, only increased the temps.

Rig:
Asus P4P8X I865 mobo
Intel Pentium 4 2.6C SL6WS
2x512MB OCZ PC4200 gold
Antec 400w Truepower PSU (rails tweaked to be dead on)
Asus Geforce FX5600
Plextor 8x DVD+R
WD1200JB
Swiftech MCX4000 Heatsink with 10000rpm fan (yeah, 10000, spins closer to 11k on mbm)

 

[Acanthus]

bump

 

[zShowtimez]

The IC7 is nice, as is the AI7. Can also reccomend the P4P800.

 

[Big Lar]

I've had my P4P800 to 261, thats as high as my 3.0 would go tho, but then again, I've had 2 P4P800 boards that wouldn't do over 248fsb, I think its luck of the draw...