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Thread: GA-P55 UD3R COLD boot problem




  1. #1
    Join Date
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    Unhappy GA-P55 UD3R COLD boot problem

    hi,

    sometimes it wont boot, HDD led is continuous red, fans not running.
    all phase led on. mostly this will happen after a long *off* period, but sometimes allso now and then. but if it runs, it is very stable.
    Bios F4
    Rams: OCZ3G1600LV2G (2x2gb) 8-8-8-24, 1.65v
    CPU: i5 750

    how can i fix this?

    settings as follow:

    CPU Clock Ratio 20x

    Intel(R) Turbo Boost Tech................[
    enabled]
    CPU Cores Enabled........................[All]

    CPU Enhanced Halt (C1E)..................[
    enabled]
    C3/C6/C7 State Support...................[
    enabled]
    CPU Thermal Monitor......................[
    enabled]
    CPU EIST Function........................[
    enabled]
    Bi-Directional PROCHOT...................[
    enabled]

    QPI Clock Ratio..........................[x18]
    QPI Link Speed........................[3150mh]
    Uncore Clock Ratio....................[16x]
    Uncore Frequency.........................2880MHz


    Base Clock (BCLK) Control................[Enabled]
    BCLK Frequency ..........................[175]
    System Memory Multiplier (SPD)...........[8]
    Memory Frequency (MHz)................1400
    PCI Express Frequency (MHz)..............[100]
    C.I.A.2..................................[Disabled]

    CPU Clock Drive..........................[ 800mV]
    PCI Express Clock Drive..................[ 900mV]
    CPU Clock Skew...........................[ 0ps]

    System Memory Multiplier (SPD)...........[8]
    Memory Frequency (MHz)................1400
    Performance Enhance (SPD)............. [std]
    DRAM Timing Selectable (SPD)............ [quick]
    Profile DDR Voltage ..................1.5v
    Profile QPI Voltage ..................1.1v
    Channel Interleaving.....................[Auto]
    Rank Interleaving........................[Auto]

    >>>>> Channel A & B

    Channel A Timing Settings [Press Enter]:
    Cas Latency Time........................[8]
    tRCD....................................[8]
    tRP.....................................[8]
    tRAS...................................[22]

    >>>>> Advanced Timing Control

    tRC....................................[Auto]
    tRRD...................................[Auto]
    tWTR...................................[Auto]
    tWR....................................[Auto]
    tWTP...................................[Auto]
    tWL....................................[Auto]
    tRFC...................................[84 Auto]
    tRTP...................................[Auto]
    tFAW...................................[Auto]
    Command Rate (CMD).................. 1 [1]

    >>>>> Misc Timing Control

    B2B Cas Delay..........................[ Auto]
    Round Trip Latency.....................[Auto]

    Channel A Turnaround Settings [Press Enter]:
    Different DIMMs........................[Auto]
    Different DIMMs........................[ Auto]
    On The Same Rank.......................[Auto]

    Different DIMMs........................[ Auto]
    Different DIMMs........................[ Auto]
    On The Same Rank.......................[ Auto]

    Load Line Calibration...................[auto]
    CPU Vcore..................1.1000v..[normal]
    CPU DVID.....................[+0.9275v]
    QPI/VTT Voltage..........1.100v.....[1.230v]

    >>> MCH/ICH
    PCH Core....................1.050v.....[1.050]
    CPU PLL......................1.800v.....[1.880]

    >>> DRAM
    DRAM Voltage..............1.500v.....[1.660v]
    DRAM Termination.........0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]

    Isochronous Support....................[Enabled]
    Virtualisation technology..............[Enabled]

    hope i can find some help

    cu

    Last edited by alice; 11-30-2009 at 09:30 PM.

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-P55 UD3R COLD boot problem

    You may want to try using Performance Enhance = Turbo, saw this help a user not long ago, so this may be something new to P55 and standard causes issues? Just a thought to test out

    Aside from that, I think you may need more PCH Voltage, and maybe a little more QPI/Vtt

  3. #3
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    Default Re: GA-P55 UD3R COLD boot problem

    Quote Originally Posted by Lsdmeasap View Post
    You may want to try using Performance Enhance = Turbo, saw this help a user not long ago, so this may be something new to P55 and standard causes issues? Just a thought to test out

    Aside from that, I think you may need more PCH Voltage, and maybe a little more QPI/Vtt
    ok, will try:

    qpi=1.25 (looking at intel i5 750 specs: max qpi is 1.21!!, or i'm wrong? =
    pch=1.120
    perf.enh=turbo

    hopefully this will help...

  4. #4
    Lsdmeasap's Avatar
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  5. #5
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    Default Re: GA-P55 UD3R COLD boot problem

    Quote Originally Posted by Lsdmeasap View Post
    Do not worry about that, see my reply here on QPI/Vtt voltages
    QPI/Vtt Voltage post (High is OK)
    hmm, yes there was x58 / i7 talking and there may this higher qpi/vtt voltages are ok but see here:



    found at Intel Datasheet for the Lynnfield:

    http://download.intel.com/desi...or/datashts/322164.pdf

    Look at the table 7-4 on page 67

    so, i'm really not sure about that, what do you say?

    best



    Last edited by alice; 12-01-2009 at 12:57 AM.

  6. #6
    Lsdmeasap's Avatar
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    Default Re: GA-P55 UD3R COLD boot problem

    Yes, I am aware of what that says. Did you read ALL the info I posted in the link above? Several types of memory by default MUST have way more than that.

  7. #7
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    Default Re: GA-P55 UD3R COLD boot problem

    Quote Originally Posted by Lsdmeasap View Post
    Yes, I am aware of what that says. Did you read ALL the info I posted in the link above? Several types of memory by default MUST have way more than that.
    ok, i will give it a try

  8. #8
    Lsdmeasap's Avatar
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    Default Re: GA-P55 UD3R COLD boot problem

    Yes, don't be scared of it at all. As long as you keep your ram voltage within .5 of QPI/Vtt you will be fine, that is anywhere within a.5 range, not exact .5 difference.

  9. #9
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    Default Re: GA-P55 UD3R COLD boot problem

    ^^+1

    Voltage difference between QPI/VTT and VDIM is the key. As long as this rule is observed, you can actually run rather high sounding QPI/VTT voltages quite safely. IMO, anything up to 1.35 QPI/VTT is positively pedestrian, up to 1.45 is "giving it some beans" and up to ~1.5 is for when pushing for benchmarks. This becomes more/less safe depending on cooling used too.

    With QPI/VTT @ 1.25V and VDIMM at 1.65V(0.4V apart), you are definitely 100% safe.
    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

  10. #10
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    Default Re: GA-P55 UD3R COLD boot problem

    Just so you are not so scared, I have personally uses 1.7 QPI/Vtt myself, using 1.41xx now I believe. Of course that 1.7 QPI/Vtt was under Dry Ice, but on water I have used 1.6-1.65 without issues.

    Check out some of my settings used in my DDR3 reviews linked in my signature, you will see even some high QPI used at lower ram speed too.

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