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Thread: High CPU Termination of E8400 in UD3P




  1. #11
    Join Date
    Nov 2008
    Posts
    22

    Default Re: High CPU Termination of E8400 in UD3P

    The setting can boot with FSB 449 if go with 450 it can boot but it start with default bios.


    Quote Originally Posted by Max25 View Post
    Please do the following:

    BIOS Setting
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio .......................: 8 ->6
    Fine CPU Clock Ratio...................: +0.0
    CPU Frequency .........................: 4.00GHz (500X8)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control.................: [Enabled]
    CPU Host Frequency (Mhz) ..............: 500 -> 400
    PCI Express Frequency (Mhz) ...........: 100
    C.I.A.2 ...............................: [Disabled]


    Advanced Clock Control [Press Enter]
    CPU Clock Drive........................: 800mV
    PCI Express Clock Drive................: 900mV
    CPU Clock Skew (ps)....................: 0ps
    MCH Clock Skew (ps)....................: 0ps


    DRAM Performance Control
    Performance Enhance....................: [STANDARD]
    Extreme Memory Profile (X.M.P.)........: [Disabled]
    (G)MCH Frequency Latch.................: [AUTO]
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ................: 1000
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time.......................: 5
    tRCD ..................................: 4 ->5
    tRP'...................................: 5
    tRAS...................................: 14 ->15

    Advanced Timing Control -> all to auto
    tRRD...................................: 4
    tWTR...................................: 6
    tWR....................................: 6
    tRFC...................................: 64
    tRTP...................................: 4
    Command Rate (CMD) ....................: 2

    Driving Strength Profiles
    Driving Strength ......................: 1066MHz

    Channel A
    Static tRead Value.....................: 9 ->10
    tRD Phase0 Adjustment..................: 0 [AUTO]
    tRD Phase1 Adjustment..................: 0 [AUTO]
    tRD Phase2 Adjustment .................: 0 [AUTO]
    tRD Phase3 Adjustment..................: 0 [AUTO]
    Trd2rd(Different Rank).................: 8 [AUTO]
    Twr2wr(Different Rank).................: 8 [AUTO]
    Twr2rd(Different Rank).................: 7 [AUTO]
    Trd2wr(Same/Diff Rank).................: 9 [AUTO]
    Dimm1 Clock Skew Control...............: [AUTO]
    Dimm2 Clock Skew Control...............: [AUTO]
    DDR Write Training.....................: [AUTO]

    Channel B
    Static tRead Value.....................: 9 ->10
    tRD Phase0 Adjustment..................: 0 [AUTO]
    tRD Phase1 Adjustment..................: 0 [AUTO]
    tRD Phase2 Adjustment .................: 0 [AUTO]
    tRD Phase3 Adjustment..................: 0 [AUTO]
    Trd2rd(Different Rank).................: 8 [AUTO]
    Twr2wr(Different Rank).................: 8 [AUTO]
    Twr2rd(Different Rank).................: 7 [AUTO]
    Trd2wr(Same/Diff Rank).................: 9 [AUTO]
    Dimm1 Clock Skew Control...............: [AUTO]
    Dimm2 Clock Skew Control...............: [AUTO]
    DDR Write Training.....................: [AUTO]


    Motherboard Voltage Control
    CPU
    Load-Line Calibration..................: [Disabled]
    CPU Vcore...................1.250v : 1.350v
    CPU Termination...........1.200v: 1.540v ->1,1V
    CPU PLL.......................1.500v: 1.500V
    CPU Reference.............0.760v: [AUTO]


    MCH/ICH
    MCH Core.....................1.100v: 1.100V ->1,2V
    MCH Reference............0.760v.: [AUTO]
    MCH/DRAM Ref..........0.900v.: [AUTO]
    ICH I/O........................1.500v: 1.500v
    ICH Core......................1.100v: 1.100v

    DRAM
    DRAM Voltage...................1.800v.: 2.00v
    DRAM Termination ......................: 0.900V [AUTO]
    Channel A Reference....................: 0.900V [AUTO]
    Channel B Reference ...................: 0.900V [AUTO]

    Advanced Settings
    Limit CPUID Max. to 3..................: [Disabled]
    No-Execute Memory Protect..............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support...................: [Disabled]
    x C4/C4E State Support.................: [Disabled]
    CPU Thermal Monitor 2(TM2) ............: [Enabled]
    CPU EIST Function......................: [Disabled]
    Virtualization Technology..............: [Enabled]


    Now you test, if your System boots. Then raise the FSB to 410 and test again. Then 420, 430, 440...500

    Write here the FSB, when the System wont boot.

  2. #12
    Join Date
    Jan 2009
    Posts
    15

    Default Re: High CPU Termination of E8400 in UD3P

    ok, FSB 449 is possible with 1,1V. Next Step:

    set _________________________ write here the max. FSB, you can boot
    CPU Termination...........1.12V ___ FSB...
    CPU Termination...........1.14V ___ FSB...
    CPU Termination...........1.16V ___ FSB...
    CPU Termination...........1.18V ___ FSB...
    CPU Termination...........1.20V ___ FSB...

    Finding the right VTT Voltage take some times.

  3. #13
    Join Date
    Nov 2008
    Posts
    22

    Default Re: High CPU Termination of E8400 in UD3P

    There have only step from 1.1 to 1.2v and Max FSB is 540

    Quote Originally Posted by Max25 View Post
    ok, FSB 449 is possible with 1,1V. Next Step:

    set _________________________ write here the max. FSB, you can boot
    CPU Termination...........1.12V ___ FSB...
    CPU Termination...........1.14V ___ FSB...
    CPU Termination...........1.16V ___ FSB...
    CPU Termination...........1.18V ___ FSB...
    CPU Termination...........1.20V ___ FSB...

    Finding the right VTT Voltage take some times.

  4. #14
    Join Date
    Jan 2009
    Posts
    15

    Default Re: High CPU Termination of E8400 in UD3P

    There have only step from 1.1 to 1.2v
    Are you sure? I can set this Values for CPU Terimation in my UD3P. What Bios?

  5. #15
    Join Date
    Nov 2008
    Posts
    22

    Default Re: High CPU Termination of E8400 in UD3P

    Ep45-ud3p f7

    Quote Originally Posted by max25 View Post
    are you sure? I can set this values for cpu terimation in my ud3p. What bios?

  6. #16
    Join Date
    Jan 2009
    Posts
    15

    Default Re: High CPU Termination of E8400 in UD3P

    It must be a bug, you must be able to set CPU Termination in this steps. You could only set 1,1 - 1,2 - 1,3 - 1,4 - 1,5 - 1,6?

    But you write in your first post, that you have set it to 1.540v????

  7. #17
    Join Date
    Nov 2008
    Posts
    22

    Default Re: High CPU Termination of E8400 in UD3P

    I am not sure may be typo error when using other template and input with my setting




    What is your suggestion?


    Quote Originally Posted by Max25 View Post
    It must be a bug, you must be able to set CPU Termination in this steps. You could only set 1,1 - 1,2 - 1,3 - 1,4 - 1,5 - 1,6?

    But you write in your first post, that you have set it to 1.540v????

  8. #18
    Join Date
    Apr 2008
    Posts
    942

    Default Re: High CPU Termination of E8400 in UD3P

    Please keep in mind the Absolute Maximum Voltages as Specified by Intel for both Vcc & Vtt are at 1.45volts.

    http://download.intel.com/design/pro...hts/318732.pdf
    Details on page 17
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  9. #19
    Join Date
    Jan 2009
    Posts
    15

    Default Re: High CPU Termination of E8400 in UD3P

    Oh, my msitake, your right, between 1.1 and 1.2 you cant set any more.

    ok, to make it shorter, please test the following and post your results:

    set _________________________ write here the max. FSB, you can boot
    CPU Termination...........1.2V ___ FSB...
    CPU Termination...........1.24V ___ FSB...
    CPU Termination...........1.28V ___ FSB...
    CPU Termination...........1.32V ___ FSB...
    CPU Termination...........1.36V ___ FSB...
    CPU Termination...........1.40V ___ FSB...

    Then we will see how your CPU works on higher VTTs.

  10. #20

    Default Re: High CPU Termination of E8400 in UD3P

    From my experience with my E8400 and UD3P, BuGjAE is correct. When you raise VTT and MCH core you need to lower MCH reference on this board with 45nm dual cores(8400/8500/8600), especially when the MCH is higher you may need down to .65v, which is done by setting VTT to 1.2 then set MCH ref to .65, then raise VTT back to what you need. For me I have good results keeping VTT and MCH core at the same voltage.

    For me I found my 24/7 settings on stock 1.25 v core to be:



    9x415 =3780
    2.66D, mem runs 1104


    CPU vcore: normal(to still use low power idle), for now leave yours on 1.35v in bios
    VTT= 1.22
    PLL:1.5
    CPU reference .760v(normal or auto)

    MCH core: 1.22v
    MCH reference= .74(set with VTT at 1.20, then raise VTT back, it will change slightly but this is how ET6 will report)

    Set the Dram voltage to what your mem says, also same for mem timings, leave the rest on auto for now. Then you can go back and manually set the PL(static tRead) to as low as you can get it and be stable



    Once I got near my limits on mine, like 1.425v and 4350Mhz I needed to raise the cpu ref up 1-2 notches, so ET6 shows .785 or .80v.
    Last edited by SpeedEuphoria; 01-27-2009 at 10:52 AM.
    New Q9650, Gigabyte UD3P, 4GB OCZ Platinum, Asus TOP 4850, Antec TP3 550W, Vista 64 SP1/XP SP3.

    http://www.cardomain.com/ride/2641801

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