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DRAM voltage when moving from 1600mhz to 1866mhz on MSI A68HM Motherboard

I've got an MSI A68HM Grenade motherboard with two sticks of G.SKILL Sniper Series (2 X 4gb, 1866mhz). When I first booted the PC, the DRAM speed was set to 1600mhz. After some looking around, I found that I could adjust the DRAM speed with XMP (even though I've got an AMD processor?). I selected the first XMP profile which changed the DRAM frequency to 1866mhz. What I'm not sure about is what to do with the voltage and timings - They are both set to "Auto". The DRAM voltage did not change at all when the DRAM Frequency was upped to 1866. Is this normal?

Everything seems to be running fine but I'm a little worried because I'm pretty unfamiliar with over clocking. Any insight would be really appreciated!

Thank you!
11 answers Last reply Best Answer
More about dram voltage moving 1600mhz 1866mhz msi a68hm motherboard
  1. Everything is good XMP changes timings and voltages as necessary
  2. Supahos said:
    Everything is good XMP changes timings and voltages as necessary


    Thank you for your response! I'm a little confused as to why using the XMP profile works despite my PC having an AMD APU processor? Do you know why this might be?
  3. Best answer
    XMP is an Intel technology, for many years most AMD mobo makers shunned paying licensing fees to utilize it and instead would go their own way (Asus developed DOCP and GB developed EOCP), AMD itself came out with AMP - all of which read in the XMP profile off the DRAM and then adjusted the BIOS to set to the settings. MOre and more AMD boards are simply going with the true XMP tech
  4. Tradesman1 said:
    XMP is an Intel technology, for many years most AMD mobo makers shunned paying licensing fees to utilize it and instead would go their own way (Asus developed DOCP and GB developed EOCP), AMD itself came out with AMP - all of which read in the XMP profile off the DRAM and then adjusted the BIOS to set to the settings. MOre and more AMD boards are simply going with the true XMP tech


    Thank you so much for the information! That was a much better explanation than anything I've found. As far as the DRAM voltages and timings, is it true that XMP will take care of adjusting those? I just want to make sure I have the DRAM voltage set correctly :)

    Thank you!
  5. To check get the free app CPU-Z and look in the memory tab to see what you are running at. While XMP is 'automatic' for setting data rate, timings and voltage - have to remember XMP is implemented via the BIOS so it has to have the proper programming to fully put the XMP profile into place (there's more than just the base timings, voltage and data rate, there are also secondary timings and Command Rate
  6. It would default to 1.5v which is stock voltage. If it's still there then you're certainly good to go if it went up above 1.5 you can try and manually lower it and see if it's still stable. You didnt mention exactly which kit but I don't recall any snipers running 1.6v at 1866
  7. Supahos said:
    It would default to 1.5v which is stock voltage. If it's still there then you're certainly good to go if it went up above 1.5 you can try and manually lower it and see if it's still stable. You didnt mention exactly which kit but I don't recall any snipers running 1.6v at 1866

    Thank you, that makes sense! The DRAM voltage is right around 1.488v. I'm assuming that's safe for the 1.5v stock? I've been gaming/running for a few hours no with no issues. Anything else I should do to test stability? Thank you so much for the help!
  8. You can always run memtest to check stability but I always use it as a tool after I have issues on my own builds (usually run a few passes on client builds before I deliver just to be safe)
  9. Sounds good, might run ROG Real Bench, it will test the overall rig ;)
  10. Tradesman1 said:
    To check get the free app CPU-Z and look in the memory tab to see what you are running at. While XMP is 'automatic' for setting data rate, timings and voltage - have to remember XMP is implemented via the BIOS so it has to have the proper programming to fully put the XMP profile into place (there's more than just the base timings, voltage and data rate, there are also secondary timings and Command Rate


    Thank you! I installed CPU-Z and my results for memory are as follows:

    DRAM Frequency: 931.4Mhz
    FSB:DRAM = 3:28
    CAS# Latency(CL) = 9.0 clocks
    RAS# to CAS# Delay (tRCD) = 10 clocks
    RAS# Precharge (tRP) = 9 clocks
    Cycle Time (tRAS) = 28 clocks
    Bank Cycle Time (tRC) 37 clocks
  11. Looks good ;)
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