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Thread: Incompatability: Corsair XMS3 CMX4GX3M2A1600C7 and P55A UD4?




  1. #81
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    Default Re: Incompatability: Corsair XMS3 CMX4GX3M2A1600C7 and P55A UD4?

    Initial voltages may be a possibility. However It won't be due to temperature as such. For example, I've seen many many RAM benches where the IC's were cooled with Dry Ice, LN2 etc.

    If at any time one were to encounter an issue where actual physical temperature of a component was significant, it would almost certainly be a faulty component. That kind of thing usually happens when marginal solder joints are broken when the solder and components are cold, but re-connect when the components become warmer and expand slightly.
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  2. #82
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    Default Re: Incompatability: Corsair XMS3 CMX4GX3M2A1600C7 and P55A UD4?

    yh but they still have to have an x amount of voltage passing through them whether at sub zero temps or 80c +,i just think they arnt warming up quickly enough and giving errors,i would take all the modules out before booting from cold and hold a hair dryer over them but at a distance not to damage anything,just to get all the modules warm then plug em in and see if any errors pop up

    i could be completely wrong but it would be interesting to see if it made a difference
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  3. #83
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    Default Re: Incompatability: Corsair XMS3 CMX4GX3M2A1600C7 and P55A UD4?

    As far as I know, there are no IC's of any type currently that are that sensitive to temperature. IC's are given an optimum temperature range, however the max temp is usually much more important than the minimum. Sure, temperature effects resistance and at lower temps there will be lower resistance, however regular room temperature range should not cause any issues. It would require a very large temp variance for altered resistance to become a significant issue with silicone. If we were talking valves and tubes, maybe. Some circuits composed of these even had pre-heaters and temperature was much more important.

    Lets say that heating the IC's caused the issue to disappear. That then means that if I want to use my PC in a morning, I'll have to plug in the hair drier first? Logically speaking, if this is necessary and isn't on any other model and brand of IC currently available, would that not point otwards manufacturer defect? I mean if they haven't ensured that the IC's work within a reasonable temp range then surely there is a defect in either materials or workmanship, at the very least they've used incorrectly rated components?

    Note that the "Cold" in the phrase "Cold boot issue" only refers to there being no initial power on followed by a reset, it doesn't actually refer to temperature as such.

    The most important factor here is that the modules work fine in another manufacturer's motherboard and actually also over clock quite well too.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  4. #84
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    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Incompatability: Corsair XMS3 CMX4GX3M2A1600C7 and P55A UD4?

    I know you are right Psycho, but I've honestly seen where a 60F room can cause a cold boot issue very quickly, where a 70F room it can take several hours.

    So I think temperature can have a little to do with it at times, but not sure how much that would be?

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