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Thread: System Memory Multiplier (SPD) >10x?




  1. #1
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    Question System Memory Multiplier (SPD) >10x?

    I was wondering why the SPD for the GA-H55M-UD2H tops out at 10x, making it necessary to OC to achieve 1666 memory speed. I imagine most people are buying DDR3 1600 these days, so it's especially puzzling. Is it because 1066/1333 is what Intel specifies for most if not all of the Core iX line?

    Is this true for other similar boards as well?

  2. #2
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    Default Re: System Memory Multiplier (SPD) >10x?

    i dont know why its limited to 10x mem multi,my board has 18x mem multiplier and has the uncore freq unlocked also,i think the h55/p55 boards are locked i dont know why,just raise your bclk a little to allow for 1600mhz you only need to clock to 3.2ghz to use 1600mhz ram
    Gigabyte z77x UP4-TH F11c Modded Bios
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  3. #3
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    Default Re: System Memory Multiplier (SPD) >10x?

    With a Core i3-530, AFAIK I have to raise BCLK a lot to get the memory to 1600: from 133 to 160. That puts the CPU at about 3.5GHz. I think I'd have to drop the clock ratio to 21x if I wanted less, which still at 160 would be 3.36GHz.

  4. #4
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    Default Re: System Memory Multiplier (SPD) >10x?

    whats the top clock ratio for those chips (cpu multiplier)? they overclock higher on turbo than the 920's, if its a higher multi like 22x just lower the bclk to 150 and so on
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  5. #5
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    Default Re: System Memory Multiplier (SPD) >10x?

    I don't know yet, but the default is 22x and I haven't seen mentions of anything higher.

    So, assuming 160x22 doesn't fly, it would appear to be a choice of these two. I suppose the second would be slightly better but am not sure.

    -BCLK 150x22 (3.3); memory 150x10 (1500)
    -BLCK 160x21 (3.36); memory 160x10 (1600)

  6. #6
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    Default Re: System Memory Multiplier (SPD) >10x?

    Second one is definitely better, higher CPU speed and higher RAM speed, there's no reason why it could possibly be slower.


  7. #7
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    Default Re: System Memory Multiplier (SPD) >10x?

    what are those i3 chips like?? i wouldnt mind building a system with one of those,what are temps like as there only 32nm
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  8. #8
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    Default Re: System Memory Multiplier (SPD) >10x?

    I don't know myself yet, but you can get some idea here:
    Max clock for my i3 530 - Cooler-and-Heatsinks - Overclocking

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