Mr Mister said:
i think the yellow is for ram requiring higher voltage and the orange for the ram requiring less. Got my 2gb ocz kit in orange slots because i use 2.6v.
Yes, that's true but my results when I was last clocking showed a slightly different trend.
I was clocking @ 2-3-2-5 with my 2GB kit. I wanted to see how far it would go at stock timings. Anyway, orange slots would not go beyond 210mhz or else it would reboot after the verifying DMI pool data screen. Then switched over to the orange and got to 220mhz at the same timings and everything.
Next was seeing high FSB. I clocked in the yellow as the sticks were still in there. I needed 235mhz and so I shot at 2.5-3-2-5 - no go, reboot at the verifying screen again. Managed to get it to boot properly and pass a preliminary memtest of 3-3-2-5. I wasn't happy with this of course as they are rated for 3-3-2-8 250mhz. Swapped over to orange slots and that is where we are now at 235mhz 2.5-3-2-5 memtest stable.
That's just my findings anyway but it seems to show me something
.