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GA-EP45T-Extreme can't get over FSB@399Mhz :uhh:

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  • #1

    GA-EP45T-Extreme can't get over FSB@399Mhz :uhh:

    Hi guys,

    I need help !!!
    What I am simply trying to do is to run the memory quad-pumped (x4) and FSB@400Mhz but my system won't even boot whereas it is rock-stable with FSB@399Mhz, what is wrong ?

    Here is my system configuration:
    MB: GA-EP45T-extreme
    RAM: 2*2GB DDR OCZ PC14400
    CPU: Q9650

    The BIOS settings I am trying to boot with are:

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 3,6Ghz
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: Enabled
    CPU Host Frequency (Mhz) ............: 400
    PCI Express Frequency (Mhz) .........: 100
    C.I.A. 2.......................................: Disabled
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: 700mv
    PCI Express Clock Drive.................: 700mv
    CPU Clock Skew (ps)....................: Auto
    MCH Clock Skew (ps)...................: Auto
    DRAM Performance Control
    Performance Enhance...................: Std
    (G)MCH Frequency Latch...............: 333 (<<< I also tried 400)
    System Memory Multiplier ..............: 4.00B (<<< with 4.00D)

    Memory Frequency (Mhz) ..............: 1600
    DRAM Timing Selectable ................: Manual
    Standard Timing Control
    CAS Latency Time........................: 8
    tRCD .........................................:8
    tRP'...........................................: 8
    tRAS..........................................: 27
    Advanced Timing Control [Press Enter]
    tRRD...........................................:Au to
    tWTR..........................................:Aut o
    tWR............................................:Au to
    tRFC...........................................:Au to
    tRTP...........................................:Au to
    Command Rate (CMD) ....................:Auto
    Channel A
    Static tRead Value.........................:Auto
    tRD Phase0 Adjustmen...................:Auto
    tRD Phase1 Adjustment...................:Auto
    tRD Phase2 Adjustment .................:Auto
    tRD Phase3 Adjustment..................:Auto
    Trd2rd(Different Rank)....................:Auto
    Twr2wr(Different Rank)...................:Auto
    Twr2rd(Different Rank)...................:Auto
    Trd2wr(Same/Diff Rank)..................:Auto
    Dimm1 Clock Skew Control...............:Auto
    Dimm2 Clock Skew Control...............:Auto
    DDR3 Write Levelling.......................: Auto
    DDR3 Write Training.........................: Auto
    Channel B
    Static tRead Value.........................:Auto
    tRD Phase0 Adjustmen.......................:Auto
    tRD Phase1 Adjustment......................:Auto
    tRD Phase2 Adjustment .....................:Auto
    tRD Phase3 Adjustment......................:Auto
    Trd2rd(Different Rank).....................:Auto
    Twr2wr(Different Rank).....................: Auto
    Twr2rd(Different Rank).....................:Auto
    Trd2wr(Same/Diff Rank).....................: Auto
    Dimm1 Clock Skew Control...................:Auto
    Dimm2 Clock Skew Control...................:Auto
    DDR3 Write Levelling.......................: Auto
    DDR3 Write Training.........................: Auto

    {U]Motherboard Voltage Control{/U]
    Voltage Type.…...……...
    CPU
    CPU Vcore….………...........................:1,225
    CPU Termination…...... 1.200V*...........:1,2
    CPU PLL………………….........1.500V*...........:1,5
    MCH/ICH
    MCH Core……………..........1.100V............: 1,1
    MCH Reference..…...….….0.800V............;Auto
    ICH I/O…………....……......1.550V............: Auto
    DRAM
    DRAM Voltage ……........1.500V............: 1,9
    DRAM Termination ...…..0.900V............: Auto
    Channel A Data Vref ...0.75V.............: Auto
    Channel B Data Vref ...0.750V............: Auto
    Channel A Address Vref 0.75V.............: Auto
    Channel B Address Vref 0.750V............: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) ...........: Disabled
    CPU EIST Function.........................: Disabled
    Virtualization Technology................:Disabled

    It seems that it is a kind of chipset FSB hole....any idea ?
    Tags: None
  • #2
    Re: GA-EP45T-Extreme can't get over FSB@399Mhz

    Take a look at the memory speeds, i think the ram isnt running with enough voltage, to verify this :

    Try reducing the system memory multiplier to a lower level, such as 3.0
    Asrock P55-Extreme
    Core I5 @ 3.2GHZ
    2x2GB G.skill Ripjaws DDR3 1600
    ASUS HD5850
    1TB Samsung SATA II
    Corsair TX650W PSU

    Comment

    • #3
      Re: GA-EP45T-Extreme can't get over FSB@399Mhz

      You have the known problem with quads at FSB 400MHz.
      Just use 402+ and you'll be ok.
      GA-X48T-DQ6 [rev: 1.3], Bios F6e (replacement of GA-EP45T-UD3P [rev: 1.0])
      Q9550 (E0), Zalman CNPS9500 Cooler
      2x2GB Kingston HyperX [KHX13000D3LLK2/2G] 1.7V DDR3-1333 @7-7-7-20
      Gainward Bliss 8800GT, 2x1TB HDD Samsung SATA-2, CoolerMaster Real Power Pro 850W PSU

      Comment

      • #4
        Re: GA-EP45T-Extreme can't get over FSB@399Mhz

        Take a look at the memory speeds, i think the ram isnt running with enough voltage, to verify this :

        Try reducing the system memory multiplier to a lower level, such as 3.0
        The pb lays between the memory speed and the MCH latch. RAM is certified for 1800 Mhz@1,9v so this should be ok to run it @1600Mhz...
        The whole point is that I want to use the ram at4x speed ; ) (I noticed winrar is then substantially faster then :p)

        You have the known problem with quads at FSB 400MHz.
        Just use 402+ and you'll be ok.
        Thx for the info, should I keep memory latch = 333 then or 400 with FSB@402+ ?
        Last edited by XXXX1!; 05-08-2009, 04:24 AM.

        Comment

        • #5
          Re: GA-EP45T-Extreme can't get over FSB@399Mhz

          You can keep spd 333 for fsb 402. If you continue to increase (say up to 410-420) you could hit a wall, so then change to 400.
          GA-X48T-DQ6 [rev: 1.3], Bios F6e (replacement of GA-EP45T-UD3P [rev: 1.0])
          Q9550 (E0), Zalman CNPS9500 Cooler
          2x2GB Kingston HyperX [KHX13000D3LLK2/2G] 1.7V DDR3-1333 @7-7-7-20
          Gainward Bliss 8800GT, 2x1TB HDD Samsung SATA-2, CoolerMaster Real Power Pro 850W PSU

          Comment

          • #6
            Re: GA-EP45T-Extreme can't get over FSB@399Mhz

            Originally posted by Comers View Post
            You can keep spd 333 for fsb 402. If you continue to increase (say up to 410-420) you could hit a wall, so then change to 400.
            It did not do the trick unfortunately, tried 405 and 410 but no boot (I mean it does not even get to the bios) with strap 4.00B (333Mhz strap) or 4.00D (400Mhz strap).
            The only strap that will pass bios boot is 4.00A (200Mhz strap) but then the system is very unstable after a 1 or 2 minutes, weird no ?

            Comment

            • #7
              Re: GA-EP45T-Extreme can't get over FSB@399Mhz

              I guess we both have a very similar problem. Me, whit a 1600 DDR3 and the EP-45C DS3-No way above 380 in my case. Nothing to do whit 400.

              http://forums.tweaktown.com/f69/ga-ep45c-ds3-corsair-mxs3-1600-ddr3-32019/#post297824
              Asus PZ68-V Pro/Gen3
              CPU INtel i7 2700k (4.5 ghz). Air Cooling
              Phanteks tc-14 PE- 3 fans
              SSD OCZ VERTEX 4- 128 gb Win 10 x64
              1x 150 Gb HD Velociraptor
              1x300 GB HD Velociraptor
              1x500 GB W. Digital
              2x4GB Samsung 32nm 2133. 9-10-10-28 1T.VDRAM 1.55 - VCCIO 1.05
              PowerColor HD-7770
              Sound Blaster X-FI Extreme Music
              PSU. 750w Thermaltake
              Dimastech Benchtable
              Samsung LPS 27" S27D850T
              https://www.facebook.com/media/set/?...4213100&type=3

              Comment

              • #8
                Re: GA-EP45T-Extreme can't get over FSB@399Mhz

                So it's time for memory tweaking.
                First set command rate (cmd) = 2 and increase Static tRead value (tRD) to 8-9-10
                Maybe you'll need to change the main timings to 9-9-9-27, but anyway please read your ddr3 specs and see what is suggested at different spd. Since you cannot boot you may need to raise MCH voltage to 1.20V / 1.25V and do try 1.05V as well. Then try to enter all main timings (8-8-8-2x) manually regardless you've got same on auto. Finally if nothing helps try multi 3.20 / 3.33 first B then D and decrease tRD value back to 7-8.
                For me tRD is the single most important value that will determine ddr performance - the main timings and the memory frequency come next, so at the end 3.xx multi may let you work with lower tRD and possibly at 7-7-7-20. The voltage of 1.9V may then be decreased to say 1.75V. You could always check your memory bandwidth with Everest to decide which is better for you - 4.xx or 3.xx multi.
                GA-X48T-DQ6 [rev: 1.3], Bios F6e (replacement of GA-EP45T-UD3P [rev: 1.0])
                Q9550 (E0), Zalman CNPS9500 Cooler
                2x2GB Kingston HyperX [KHX13000D3LLK2/2G] 1.7V DDR3-1333 @7-7-7-20
                Gainward Bliss 8800GT, 2x1TB HDD Samsung SATA-2, CoolerMaster Real Power Pro 850W PSU

                Comment

                • #9
                  Re: GA-EP45T-Extreme can't get over FSB@399Mhz

                  Originally posted by Comers View Post
                  So it's time for memory tweaking.
                  First set command rate (cmd) = 2 and increase Static tRead value (tRD) to 8-9-10
                  Maybe you'll need to change the main timings to 9-9-9-27, but anyway please read your ddr3 specs and see what is suggested at different spd. Since you cannot boot you may need to raise MCH voltage to 1.20V / 1.25V and do try 1.05V as well. Then try to enter all main timings (8-8-8-2x) manually regardless you've got same on auto. Finally if nothing helps try multi 3.20 / 3.33 first B then D and decrease tRD value back to 7-8.
                  For me tRD is the single most important value that will determine ddr performance - the main timings and the memory frequency come next, so at the end 3.xx multi may let you work with lower tRD and possibly at 7-7-7-20. The voltage of 1.9V may then be decreased to say 1.75V. You could always check your memory bandwidth with Everest to decide which is better for you - 4.xx or 3.xx multi.
                  You are probably right, I should not focus on 4.00x that much...
                  Thanks, I will try your tricks and keep the thread up to date!

                  Comment

                  • #10
                    Re: GA-EP45T-Extreme can't get over FSB@399Mhz

                    I was about to suggest the same as comers, tRD may be to low for what you are trying to push using the B strap., Raise it a bit and try again what you tried before, also using more and less Vtt and MCH Voltage

                    Comment

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