1 Reply Latest reply on Jun 3, 2012 1:59 AM by phil_l

    DZ77BH-55K recognizes 1600MHz RAM @ 1067MHz


      Just built a new PC.  Any ideas what might cause this memory to be seen as 1067MHz instead of 1600MHz?  I updated the BIOS to the latest version but that did not fix the issue.



      Intel Core i7-3770 Ivy Bridge 3.4GHz (3.9GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 BX80637I73770



      Intel BOXDZ77BH55K LGA 1155 Intel Z77 HDMI, DP, SATA 6Gb/s USB 3.0 ATX Intel Motherboard



      CORSAIR DOMINATOR 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMP8GX3M2A1600C9

        • 1. Re: DZ77BH-55K recognizes 1600MHz RAM @ 1067MHz



          1600Hz memory is seldom recognised automatically as such, usually it is recognised as 1333 but it depends on how it has been programmed.  Because 1600Hz is seen as not the norm, memory defaults to lower speeds to ensure you can boot up your system.


          To get 1600Hz you will need to do this manually in the BIOS.


          In the Visual BIOS go to the performance section, then Memory.  Hopefully it should just be the case of moving the slider until you see the memory read 1600MHz, press F10 to save the changes and reboot.


          Note that if you are using Intel's desktop utilities, it may still show the memory at 1067MHz because it doesn't report the actual memory speed, only the default one.


          To double check the speed, go here CPUID - System & hardware benchmark, monitoring, reporting and download CPU-Z and under the memory tab the DRAM frequency x 2 gives you your running MHz.