Here's my original RAM bank setup on my AX4SPE-N board:\n\nBank 1\n\nSlot 1 = colored blue <-\-\-\-\-\- 512 stick\nSlot 2 = colored purple <-\-\-\-\-\-512 stick\n\n\nBank 2\n\nSlot 3 = colored blue <-\-\-\-\-\-(empty)\nSlot 4 = colored purple <-\-\-\-\-\-(empty)\n\n\nI have two sticks of Crucial CL=3 DDR400 512MB on my mobo, 1024MB\ntotal. I placed both of them in Bank 1, in Slot 1 and Slot 2. Did\nthe SiSoft Sandra Memory Bandwidth Benchmark and noted the results.\n\nThen I took the second stick, previously occupying Slot 2, and placed\nit in Bank 2, Slot 3. Did the same Sandra test and my Benchmark\nnumbers jumped SIGNIFICANTLY, nearly double!\n\nHere's the second, much better performing setup:\n\nBank 1\n\nSlot 1 = blue <-\-\-\-\-\-512 stick\nSlot 2 = purple <-\-\-\-\-\-(empty)\n\nBank 2\n\nSlot 3 = blue <-\-\-\-\-\-512 stick\nSlot 4 = purple <-\-\-\-\-\-(empty)\n\nSee the attached image files. The first one shows the layout & colors\nof the banks. The second image shows the results after making the\nswitch and compares it with the previous results.\n\nSome of you gurus out there probably knew to do this, but this being\nmy first time using 128-bit DDR Dual Channel.\n\nI got the idea to try this when I was cruising the AOpen web site and\nsaw, in a picture in one of their performance trials, one stick in\neach bank, not two sticks in one bank.\n\nTD\n\nBasic system information: P4 2.4c, hardware RAID 1 array, Win2kPro.\n\nI'm everywhere you want to be.