agent_x007 wrote:You may need a lot more than +0,1V to get 2,6GHz+ from Barton (2V).
Athlom XPs do not like 3GHz speed (just like 130nm Athlon64s).
I think what holds you back it's either MB (chipset), VRM (no air flow over MOSFETs with water cooling) or PSU with underpowered 5V rail.
3 Ghz would be abit to much yeah, however I would like to achieve a stable 20-25% OC so 2,7 Ghz maybe towards 2,8 Ghz. The PSU has 35A on the 5V rail, haven't found one with higher Amps on the the 5V.
The mosfets are passive cooled (using the old chipset heatsink which fits perfectly) atm and are at most warm to the touch so shouldn't be higher then 40-50°C under load (1,825V Vcore) after a full system stress test (including GPU), so I imagine if the GPU is idle the CPU should be able to OC abit further then the 2,6 Ghz under load along with the GPU.
This motherboard don't have separate 12v rail for CPU. I don't think it's really stable even on 2600mhz.
But that's pretty much all you can achieve even with water cooling. Everything beyond that most likely will require temperatures below zero.
its stable under full FTT prime 95 and furmark burn test on the GPU.
Yeah I reckonened I need lower ambient temperatures to be able to push it further, this was the case when I only used the multiplier to push the CPU over 2,6 Ghz, but with the increase in the FSB I was able to push it to 2,6 Ghz without the need of low ambient temperatures thus lowering my loop temperatures to below 10°C.
Just annoyed by the instant reboots when I increase the FSB higher then 208 while it should go higher 😢 , not even a BSOD just instant reboot.