ThunderBird 1.33 overclocking

Hi,
I have a Tbird 1.33 running at 1470 stable (10.5x140). I managed to raise the FSB a little bit, so I had it running at 1502 (10.5x 142) - and this was kinda wierd cuz it said 1502 instead of 1491. Also at 1502 it would post only sometimes. Anyone has any ideas why?
And also if I go above 10.5, the system does not start.

I have an Iwill K266 (which supports DDR), and the FSB only goes up to 146. Can this be somehow unlocked? The voltage for the RAM doesnt go above 1.85.

THanks

Well, sounds like you're hitting your limit. Probably due to temps.

What kind of cooling do you have (case and CPU)?

Unless you use some super cooling, I wouldn't expect much more from that chip, unless you got an AXIA stepping.

Your symptoms seem to indicate a lack of power. When a system starts erratic posts it can often be traced back to a lack of power. I agree that you are probably at the limit. I am getting 1632 but running at temps in the 1 to 5C category.