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Thread: Q9550 @ 500FSB On EP45-UD3P...




  1. #81
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    Default Re: Q9550 @ 500FSB On EP45-UD3P...

    I believe honestly that if someone is happy with the voltages they set, then they should run them.

    Who knows, when I get closer to replacing this system, as long as the re-sell value is low, I may use ~1.6VTT and a huge Vcore to get 4.3-4.4GHz and extend the system's usable life by a few months.

    If you have tried setting GTL's and have had no luck, that's fine. The choice is then either to lower the OC and use a more pedestrian VTT or keep the VTT. Not saying that you'll have a PC based explosion or anything. With increased voltage does intrinsically come increased risk. The increase in risk by using 1.56VTT may well be tiny or it may vary by chip, with some seemingly bullet proof to VTT and others crying like little girls and promptly going POP or degrading.

    One thing that everyone should do, and this isn't something I made up, or an opinion, it simply works, is to try to reduce voltage requirements in any way they can.

    To sum it up, everyone needs to:

    Stay with what THEY are comfortable with
    Try all means of voltage reduction first, purely as a common sense measure
    re-evaluate their OC goals when they know 100% for certain the voltages they need
    Either push onwards or reduce according to their tastes

    there has always been a bit of "hostility" in a way between mobo manufacturers and Intel/AMD. The reason that you can set such high voltages is two fold IMO. Firstly, mobo manufacturers have latched onto extreme (Dry ice, Ln2 etc) overclocking./ They use it (rightly so) as a show case of just how good their boards are. The other reason is again, to allow personal choice. They, unlike CPU manufacturers like to appear friendly and warm, and will thus allow the user to set (within reason) any value they wish. People have already gotten used to clock locked chips, and the last thing they want is to have the same done to their mobo. Although trivial, bearing in mind attitudes of the press, I bet if VTT was locked out at say 1.6V on the next board, the reviews would slate that fact even though only those on extreme cooling will need above that value. Bragging rights I suppose goes hand in hand with the extreme image.

    Although there are alot of experienced members here, there are also alot of people new to both overclocking and to maybe PC hardware in general. Teaching them that certain settings (especially on P45 boards) can lower voltage needs is vital. We can agree that there is no conclusive proof either way as to the short term harm of VTT, so for me, prevention is better than cure. Minimise it any way if you can, then if attempts fail, crank up the volts if you feel confident to do so. I would likely be running more VTT now than my current 1.4V if I didn't tough GTL's. Same applies to my Q8200 which responded to CPU termination in a text book manner. After you do all you can, it's down to choice, but we must make others aware of the options available to them that BIOS programmers have kindly let us tinker with.
    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

  2. #82
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Q9550 @ 500FSB On EP45-UD3P...

    Electromigration and Flux Divergence is a very real subject and with today's components becoming more and more advanced and smaller in size thus creating smaller interconnects it is happening more and more.

    Some reading on the subject, some older, some new
    - Intel Employee on Electro Migration | [H]ard|OCP

    Data Remanence in Semiconductor Devices

    DoITPoMS TLP - Electromigration - Introduction

  3. #83
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    Default Re: Q9550 @ 500FSB On EP45-UD3P...

    More good info. Worth considering when you evaluate your options and decide what's comfortable.
    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

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