CHANGE FSB FROM 1066 TO 1333 ITS TRUE

recently i see in the onather forum that i can change the stock E7500 1066 to 1333 its true...

yeah I run my E8500 (FSB1333) at FSB 1840.

Edit: although just realised your sig says 4Ghz so you probably knew that, if your question is regarding stock voltages, then I'd say it's very likely, on the E8500 I went from FSB1333 to ~FSB1600 on auto. You'd want to watch heat on a stock heatsink though. You will be (at 4Ghz) running FSB1454ish which is 363Mhz x 4.

The FSB number/spec always being 4 times the actual FSB clock speed on these chips.

^ Yes, it's called a BSEL mod, been around for awhile.

You are already running more than 30 MHz faster than a 333 MHz FSB frequency.

If you are already running faster than 4 GHz, why bother? It won't increase your overclock, and that's a bad place for an "Oops."

I change from FSB 1333 to FSB 2132 (although I needed to change the heatsink on the NB to do that).

Not sure on world OC record on water, all the top overclocking results are almost always using liquid nitrogen. My highest on air was 4.75 but wasn't stable. On my chip (E8500), I found anything over 4.25Ghz requires big increases in voltages for little gain.