AMD HTT mult, HTT FSB, mem timings, overclock help

Ok so far i was able to push my little 3000 Venice chip to 2223 mhz and ran it stable. (247*9) I got it to boot at 2295 (257*9) but it hanged while going in windows. My Vcore is at 1.5 and mem is at 2.7v. I kinda went cheap on the ram, so i got the geil 1Gb dual channel sticks. I want to know whether it is my ram, MB, or chip that is limited. I have H2O cooling the chip and chipset. I have the Chaintech VNF4 Ultra MB. I see in there is the HTT multiplier. I dont really understand the what it really means, but i figured that if i lower it, then it means im able to raise the FSB higher, right? Ive been reading some articles that some people hit 2.7 GHz with with FSB at 257*9. That doesnt make sense!? This HTT def. has something to do with maxing out the CPU speed without memory limiting it. Can someone explain more about the HTT

forget about 'some people'. not every 3000+ is gonna hit 2.7. leave htt at 4x.