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Thread: GA-X48-DS5 overclocking advice




  1. #21
    Chike is offline Senior Member
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    Default Re: GA-X48-DS5 overclocking advice

    The ram can run at 1066(533MHz clock) at certain conditions (2.2v) taht are not conform with the JEDEC standard, therefore the SPD is only programed for max 400MHz(DDR-800) at 1.8v.
    For large amount ofmeory the BIOS will set it to 1.9v (the standard allow 1.9v, though it is considered the max for DDR-800).

    500W PSU is sufficient, memory does not draw much power, and the HD 5450 neither.

    For 1066 try the following changes:
    System Memory Multiplier (SPD)____ [3.20]
    Memory Frequency (Mhz)_ 800 _ 1066

    DRAM Timing Selectable____SPD _ [Manual]
    CAS Latency Time________________ 5
    Dram RAS# to CAS# Delay_________ 5
    Dram RAS# Precharge Delay_______ 5
    Precharge Delay (tRAS)__________ 15

    DDR2 OverVoltage Control___ [+0.4 to +0.5]
    FSB OverVoltage Control_____ [Normal] <<< up to +0.1 if needed
    (G)MCH OverVoltage Control__ [Normal] <<< up to +0.1 if needed


    The options to tweak are DDR2 OverVoltage , MCH OverVoltage, and FSB OverVoltage, in that order.
    Likely no FSB OverVoltage will be needed, and very little if at all MCH OverVoltage.

    Please post screen capture of MemSet(main window only,) and of MaxxMEM² benchmark for the new settings.

  2. #22
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    Default Re: GA-X48-DS5 overclocking advice

    Tried those settings and Memtest reports errors.

    I've varied the DDR OverVoltage from +0.2 - +0.4, been too scared to go higher as the higher values are highlighted in red. Even +0.3 - +0.4 are highlighted in pink.

  3. #23
    Chike is offline Senior Member
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    Default Re: GA-X48-DS5 overclocking advice

    They are hilighted pink/red to keep users from making a mistake, but manufacturer specs are 2.2-2.3v (+0.4 - +0.5).
    Have you tried upping MCH OverVoltage?

  4. #24
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    Default Re: GA-X48-DS5 overclocking advice

    Tried FSB & MCH OverVoltage at +0.1

    Should I go ahead and try DDR overvoltage at +0.5?

    About that red flashing "System Voltage NOT Optimized" message, should I be concerned?

  5. #25
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    Default Re: GA-X48-DS5 overclocking advice

    Tried at +0.5 and FSB/MCH at +0.1, still getting errors on memtest.

  6. #26
    Chike is offline Senior Member
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    Default Re: GA-X48-DS5 overclocking advice

    Try setting tRFC manually 72-84, then more MCH OverVoltage up to +0.2, then loosening timings 5-5-5-18, 5-6-5-18, and 5-6-6-18.
    8GB of memory usually a bit difficult to set at 1066.

  7. #27

    Default Re: GA-X48-DS5 overclocking advice

    Hi sorry to bump this thread,


    But im in the same boat, i actually manged to run beyond 1080mhz but later i get a system freeze with high pitch sound -_- I bought the same ram Kingston HyperX 1066mhz (2.3v on label), but it just won't run 100% stable in very cpu/ram bandwitdh demanding games/benchmarks.


    my system:
    cpu q9450
    mobo: x48-ds5
    gpu: MSI 570gtx TFIII OC/PE
    snd: XFI fatlity pro (SB046a)
    psu: Tagan piperock 600w (4x20a, total 48a)


    I'll copy paste my findings from another forum

    Now i bought 4x 2gb Kingston HyperX 1066mhz and i can run at 1080mhz or 450mhz fsb, mch +0.325, fsb +0.200v, cpuv 1.36250v, gtlr1,2 normal.. 5-5-5-15, extra advanced ram timings 5-6-10-74-6-perf.level 7-auto-2t. Anything lower can make a system freeze with high pitch sound lol


    (these are mobo default extra timings at 445mhz+ 5-5-9-70-5-pl7-auto-2t, even at 455mhz)



    I can pass windows7 mem diagnostic tool up to ~ 1092mhz (455mhz) at those manual adv timings (including perf. level 7)..


    Ingame benchmarks like Metro2033 (high mode, dof off, physx on) raises cpu cores ~75-98% (avg 90%) and when i see the most cpu usage (i monitor via g15 display) it can freeze with this high pitch sound - almost every time at 3rd repeat (or sometimes on 1st round) by most intense cpu/pcix/memory intense part.


    ---
    The next game is Resident evil 5 dx10 (all max, 4xaa), 2nd fixed benchmark. Also cpu/mem bandwidth intense and same symptom as Metro2033, anything beyond 1080mhz or lower adv timings like 5-5-10-70-5-pl7-auto-2t causes sound pitch freeze.

    At the most cpu/ram bandwidth intense benchmark parts (raising cpuv didnt help)



    Now my question is, should i change those GTLR1,2, will it smooth things out? Because I can see it in MEtro2033 benchmark its quite jittery, while at lower fsb 447mhz its much smoother.

    i use both GTLR1,2 at normal up to ~ 455mhz and always ended up with this high pitch sound. Even at mch +0.350v and cpu way higher then i use to with 4gb, but i didnt raise adv timings so much, yet.. (memory enhance : Turbo; LLC -Off in all cases)



    -------
    EDIT: Well this didnt turn out so good.. I somehow passed both Metro2033 and RE5, but when i tested LostPlanet2 dx11 (no aa, rest max) it caused the same symptom - high pitch sound, usually towards the end of the bench..

    Now im back to my 1000% stable OC 440mhz fsb,
    mem enhance:turbo 5-5-5-15; 5-5-10-70-5-pl7-auto-2t clock
    skew; driving: 800mv
    cpu -normal
    mch - normal (i tired 50ps but it didnt help much, anything higher had a negative fps impact)
    ram: 2.2v
    mch +0.300 (8gb), had at +0.250v with 4gb fsb +0.10v
    GTLR1,2- both normal LLC-off
    cpuv: 1.3250v

    and this finally passed LP2.. at 450mhz or 447 or 445 mhz is a no go, idk do i need that much mch voltage or ram voltage (its a 2.3v) or even cpu v and higher latency?

    ----

    and today it happened again in Dirt3 after ~ 45min or so..
    Is MCH overheating or what's making this high pitch sound? should i raise my memory latency further?

    when i pressed reset and 10sec later in bios it showed system temp ~ 38C, cpu 41C..
    Last edited by The|Hunter; 12-18-2011 at 08:39 AM.

  8. #28

    Default Re: GA-X48-DS5 overclocking advice

    Ok i think i found something, i checked through a few forums and now i raised 2 particular memory latency settings and so far so good. :)

    I've set it like so

    fsb 445mhz (3.560ghz, ram 1068mhz)
    PCIx: 101mhz
    mem. enhance:turbo
    5-5-5-18

    adv timings:
    tRRD: 5 >> or 6 for stability.
    tWTR: 5
    tWR: 10
    act to act refresh tRFC: 78
    tRTP: 5 >> or 6 for stability. 5 is ok for me
    Per.Level:7
    Phase adjust - auto
    cmd. rate: 2t



    skew, driving
    800mv
    cpu skew-normal
    mch skew- normal

    ram:2.15v >> or 2.20v, im fine with 2.15v
    pcix: +0.10v
    mch: +0.250v
    fsb: +0.15v
    GTLR1,2-normal
    llc-off
    cpuv: 1.3500v

    And now it passed all 3 tests; Metro2033 (5rounds), Re5, LP2 dx11 (3rounds) -1round i monitored the whole situation and my max system temp was 39-40C, so i guess MCH isn't overheating much.. Anyway, i also played COD4 MP (125fps cap) and it didnt freeze after 60-70min or so, before it froze after 15-20min..

    I guess im safe now, i'll report back if it gets unstable..

    EDIT: its still fine, i even lowered my ram voltage to 2.15v, ACT to ACT delay tRFC 78 seems to fix it, at 76 it was stable in LP2 dx11 - no more sound high pitch freeze, but later where it usually freezes, it crashed to desktop with driver nvwgf2um.dll error, tRFC: 78 fixed it. :) :)


    __________________________


    @NEW2OC

    Im using some newer F8H bios, that F7 caused some error (mem. corruption form previous session) in event viewer (win7 x64), it happens only after resume from sleep..

    You might want to contact Gigaybte so they give you this new bios,
    *make a passport here
    https://passport.gigabyte.com/Agreem...rm.aspx?mode=1

    *then login with that passport here
    http://ggts.gigabyte.com/
    and make a question/ticket


    i found mine at some German Gigabyte forum and later contacted GB, they said i should not use it until they verify it. I send them the original then they checked it and send it back approved :)
    Last edited by The|Hunter; 12-31-2011 at 05:51 AM.

  9. #29

    Smile Re: GA-X48-DS5 overclocking advice

    And i managed 450mhz stable too ^^ heh its all in advanced memory timings like Chike mentioned in this post.
    Re: GA-X48-DS5 overclocking advice

    Try setting tRFC manually 72-84, then more MCH OverVoltage up to +0.2, then loosening timings 5-5-5-18, 5-6-5-18, and 5-6-6-18.
    8GB of memory usually a bit difficult to set at 1066.


    this what i have now for 450mhz

    5-5-5-18

    tRRD: 5
    tWTR: 5
    tWR: 11
    act to act refresh tRFC: 82 >>> had to raise to 84 in the end (or 86 for stability!!)
    tRTP: 6
    Perf.level:7
    2t


    mch +0.275v, ram 2.20v and it passed Lostplanet2 2 repeats (~15min total), hehe damn tRFC :D, i hope it stays fine now


    GTLR1,2 -both at normal
    fsb +0.20v
    cpu 1.36250v (llc off)
    Last edited by The|Hunter; 12-31-2011 at 05:52 AM. Reason: changed MCH value

  10. #30
    Chike is offline Senior Member
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    Default Re: GA-X48-DS5 overclocking advice

    I leave all advanced timings auto.
    At 450MHz FSB my VTT(FSB equiv) is only +0.02, and MCH +0.07, references are tweaked though 0.72 @ 1.2VTT MCH ref, and 0.744 @ 1.2 VTT CPU ref, and clock CPU skew 150.
    Yhat's with P45, X48 may need different settings

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