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Thread: H55M-UD2H confusion with BIOS settings




  1. #1
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    Default H55M-UD2H confusion with BIOS settings

    Hi everyone. I bought a new PC for my gf and am a bit (a lot) confused from the M.I.T. settings on the H55 chipset. It is SO different from P45. I want to use some manual values and perhaps overclock a LITTLE bit. The CPU used is Core i3-530.
    Can I get a link or a short explanation of the various settings? I just don't like auto values at all :)

  2. #2
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    Default Re: H55M-UD2H confusion with BIOS settings

    Which are you confused about and I can explain, that would be easier for me to help you.

    Yes X58/P55/H55 is a bit different from P45!

    Your manual should tell you a little bit of info, as for guides there really hasn't been any in depth ones made that I know of. These may help a bit though, for X58 but many of the same settings and terms
    Intel Core i7 overclocking guide with Gigabyte GA-EX58-UD5 Intel X58 Mainboard

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    Default Re: H55M-UD2H confusion with BIOS settings

    Well, I think I understand the changes in how the frequencies are displayed. But there is a bunch of new voltages. I have no idea what they are or rather what kinda values I should set. I assume the approach of checking what auto sets them to and using those as default is not exactly smart, hm? So far I have everything at default.

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    Default Re: H55M-UD2H confusion with BIOS settings

    the only things that are vastly different is the qpi/vtt voltage which controls the memory controller inside the cpu,you should hit 3.8ghz maybe 4ghz on stock voltages with that cpu,just set your cpu voltage to normal,i dont know what qpi/vtt voltage it would need as its different setup so you would have to tell me what auto is setting it at,then enter your dram voltage either 1.5 or 1.66 and the mem multiplier to achieve your rams rated speed and enter the timings

    p.s whats it like that chip? does it perform well??
    Last edited by wazza300; 07-16-2010 at 12:35 AM.
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    Default Re: H55M-UD2H confusion with BIOS settings

    Freqencies all are based of a multiplier of Bclk, like the older FSB. So uncore, QPI, and Memory are all x multi times the Bclk

    With this chipset you dont have to worry about Uncore as you can't adjust it, so all you need to do is set QPI and Memory multi once you arrive at the Bclk you want to use.

    PCH - Should be fine at auto
    Memory/dram voltage - set to your ram spec, normally 1.66 is used for 1.65V ram
    QPI/Vtt - this is key to stability and it your memory controller, higher memory clocks or tighter timings will need more here. Higher Bclks and QPI can also cause a need for more here, 1.15-1.35 is about norm depending on your settings and hardware

    The rest of the voltages can be left in auto really, and or you should know what they mean. If you still need more help with any let us know.

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    Default Re: H55M-UD2H confusion with BIOS settings

    I assume the logic with QPI applies to DMI as well (QPI only being present on i7-9xx boards). From what I read overlocking or other playing around with these is pointless.
    I have pair of some average DDR1333 CL9 Corsair modules, really curious what can be achieved there.

    Last question for now - is there anything like synchro mode on x55 chipset? Or I shouldn't care at all?

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    Default Re: H55M-UD2H confusion with BIOS settings

    Not sure about DMI, as I have not used 1156 board yet myself but I do have one on the way for testing. I think you are probably right though, like QPI, but higher can help a little bit at times but you do need to keep it under a certain point always.

    You can probably do 1600Mhz with those sticks, they are 1.5 or 1.65 sticks right?

    Never heard of synchro mode, so no. Explain it a bit and maybe it is there just named something different in Gigabyte BIOSes

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    Default Re: H55M-UD2H confusion with BIOS settings

    Oh that's an old thing which people already doubted it's usefulness with P45 :D Basically it's having 1:1 FSB:memory frequency ratio. I can confirm it makes significant difference on my system in synthetic benchmarks. No idea about "real life".
    I asked because with the changes to how it works on newer platforms, chances are this is totally gone.

    edit: and the memory is 1.5V. Checking on Corsair's web they are supposed to be used with AMD-based systems, but the difference is probably slim to none.

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    Default Re: H55M-UD2H confusion with BIOS settings

    the dmi is the same as qpi interconnect just a slightly scaled down version,you wont need so much voltage with dmi as apposed to qpi,memory should run fine at 1.5v
    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!!!!!!!!!!!!!!!!!!!!!!

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    Default Re: H55M-UD2H confusion with BIOS settings

    Ahh ok, ya 1:1 is a thing of the past, didn't really even help with P35/P45 but more in older boards than those.

    Nothing like that for these boards though, use any speeds you like.

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