It's been reported that you should use the yellow slots for increased memory bandwidth and the orange slots for higher clocks with 1T (Link - see post 30/31). So I tried running my Mushkin PC2-8500 2x2GB kit in both the orange and yellow slots to see if there was any truth to this... well, here are my results...



Comments:

  • Strangely, I could not get the board to POST with the RAM running at 1T in the yellow slots.
  • At 1100MHz running 2T command rate, there was no difference between the yellow and orange slots with my memory.
  • Oddly, when switching RAM between slots, the board requires a CMOS clear to POST. Then after adjusting settings (loading from cmos reloaded profiles for example) and rebooting, it would hang on POST code #75 for 2 minutes before rebooting normally. I'm not sure why it does this, any thoughts? At any rate, be patient if it does this.
  • As I reported earlier, for me, 1T is marginally faster at 800MHz than 2T at 1100MHz (at least according to Everest... Sisoft Sandra has 1T slightly slower).


Based on my results, I feel bad for anyone trying to get good clocks on four sticks! Yikes!