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Thread: GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right




  1. #1
    Join Date
    Aug 2008
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    Default GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right

    Hello,
    Just built a new system
    DC 6600 No overclocking
    EP45-DS3l at F8 Bios
    2x4090-6400c4DHX Corsair memory rated at 4-4-4-12

    The system works fine from top to bottom, no stability issues and I've already stressed it out a bit here and there. Processor works great and I ran memtest all night with no issues on any of the ram in dual channel mode. The problem comes when I try to finish setting the memory to stock speeds. The motherboard does the power up/down bit where it never posts and eventually it lets me in when it resets values on the memory.

    I have already tried upping the MCH voltage to 1.2 and even 1.3 that does not work. The motherboard ignores the timing I put in (4-4-4-12) and defaults to 5-5-5-18 (cpu-z also reports this). And I have also tried these in combination with increasing the voltage up on the memory to the default amount of 2.10v.

    Any help would be appreciated, I've been all over these posts here and on corsair's site and not finding anything out that has cured my problem.

    Thanks!

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right

    Well 8GB is going to need some tweaking. Please post me the best you can remember settings you used that fail and I will see if I see any issues or where I can suggest better for you to try >>>>

    This is Just a template I use to ask people there settings, pay no attention to the numbers in it, replace with yours

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............:
    CPU Clock Ratio ..........................:
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................:


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: Mhz
    PCI Express Frequency (Mhz) .........:Set to 100


    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< Leave
    PCI Express Clock Drive.................: <<< Leave
    CPU Clock Skew (ps)....................: <<< Leave
    MCH Clock Skew (ps)...................: <<< Leave


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

    Standard Timing Control
    CAS Latency Time........................
    tRCD .........................................
    tRP'...........................................
    tRAS..........................................

    Advanced Timing Control
    tRRD...........................................
    tWTR..........................................
    tWR............................................
    tRFC...........................................
    tRTP...........................................
    Command Rate (CMD) ....................:2

    Channel A
    Static tRead Value.........................:7-10
    tRD Phase0 Adjustment...................:<<< Leave for all below as well
    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 ps
    Dimm2 Clock Skew Control...............:Auto ps

    Channel B
    Static tRead Value.........................:7-10
    tRD Phase0 Adjustment...................:<<< Leave for all below as well
    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 ps
    Dimm2 Clock Skew Control...............:Auto ps

    Motherboard Voltage Control
    Voltage Type.………... Manual
    CPU
    CPU Vcore….……….........................:
    CPU Termination…..... 1.200V*.......: <<< Leave
    CPU PLL…………………....1.500V*.......: <<< Leave
    CPU Referen.…………....0.755V*.......: <<< Leave
    CPU Reference2………,,0.800V*.......:<<< Leave

    MCH/ICH
    MCH Core…………….....1.100V...........: <<
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< Leave
    ICH Core…………...……1.100V............: <<< Leave

    DRAM
    DRAM Voltage ……....1.800V............:
    DRAM Termination .…0.900V............: <<< Leave
    Channel A Reference 0.900V............: <<< Leave
    Channel B Reference 0.900V............: <<< Leave

    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................: [Disabled]

  3. #3
    Join Date
    Aug 2008
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    Default Re: GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right

    Hello,

    Ok I copied all the settings from my MB down, as it stands, currently my board works perfectly by leaving these settings as shown below although as I said before I can not set the memory.

    Even though all of this is set to Auto, I copied the numbers shown in blue (the auto numbers) just in case it would provide you a clue as to what is going on. (Such as the dram timings which are 55518 but were set to 44412) please let me know if I am causing confusion. I figured you would know what I meant though.

    As for what I have tried, I have tried comibnations of what I wrote the first time only "I have already tried upping the MCH voltage to 1.2 and even 1.3 that does not work. The motherboard ignores the timing I put in (4-4-4-12) and defaults to 5-5-5-18 (cpu-z also reports this). And I have also tried these in combination with increasing the voltage up on the memory to the default amount of 2.10v." Beyond the advice you have given to others, I have not tried much since I did not want to cause any harm.

    Thanks!


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: auto
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................:
    CPU Frequency ...........................: 2.40ghz (266x9)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: Disabled
    CPU Host Frequency (Mhz) ............: 333 Mhz
    PCI Express Frequency (Mhz) .........: auto

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

    DRAM Performance Control
    Performance Enhance...................: Standard,Turbo,Extreme (now back at
    standard
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: Auto
    Memory Frequency (Mhz) ..............: 800 800
    DRAM Timing Selectable ................: [Auto]
    Standard Timing Control
    CAS Latency Time........................ 5 4
    tRCD ......................................... 5 4
    tRP'........................................... 5 4
    tRAS.......................................... 18 12
    Advanced Timing Control
    tRRD........................................... 3 auto
    tWTR.......................................... 3 auto
    tWR............................................ 6 auto
    tRFC........................................... 52 auto
    tRTP........................................... 3 auto
    Command Rate (CMD) ....................: 0 auto
    Channel A
    Static tRead Value.........................: 5 auto
    tRD Phase0 Adjustment...................: 0 auto
    tRD Phase1 Adjustment...................: 0 auto
    tRD Phase2 Adjustment .................: 0 auto
    tRD Phase3 Adjustment..................: 0 auto
    Trd2rd(Different Rank)....................: 6 auto
    Twr2wr(Different Rank)...................: 6 auto
    Twr2rd(Different Rank)...................: 5 auto
    Trd2wr(Same/Diff Rank)..................: 8 auto
    Dimm1 Clock Skew Control...............: +200ps
    Dimm2 Clock Skew Control...............: -700ps
    Channel B
    Static tRead Value.........................: 6 14
    tRD Phase0 Adjustment...................: 1 auto
    tRD Phase1 Adjustment...................: 0 auto
    tRD Phase2 Adjustment .................: 0 auto
    tRD Phase3 Adjustment..................: 0 0-normal
    Trd2rd(Different Rank)....................: 6 15
    Twr2wr(Different Rank)...................: 6 5
    Twr2rd(Different Rank)...................: 5 10
    Trd2wr(Same/Diff Rank)..................: 8 13
    Dimm1 Clock Skew Control...............: -700ps
    Dimm2 Clock Skew Control...............: -700ps
    Motherboard Voltage Control
    Voltage Type.………... auto
    CPU
    CPU Vcore….……….........................:
    CPU Termination…..... 1.200V*.......: auto
    CPU PLL…………………....1.500V*.......: auto
    CPU Referen.…………....0.755V*.......: auto
    CPU Reference2………,,0.800V*.......: auto
    MCH/ICH
    MCH Core…………….....1.100V...........: normal
    MCH Reference….…….0.800V...........; auto
    MCH/DRAM Ref.…......0.900V...........: auto
    ICH I/O……………….....1.550V............: auto
    ICH Core…………...……1.100V............: auto
    DRAM
    DRAM Voltage ……....1.800V............: auto
    DRAM Termination .…0.900V............: -
    Channel A Reference 0.900V............: -
    Channel B Reference 0.900V............: -
    Advanced Settings
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [?]
    x C4/C4E State Support..................: [?]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [enabled]
    Virtualization Technology................: [enabled]

  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right

    Well you will not get CAS4 with 8GB, so that is likely part of the issue. You may get 4-4/5-5-12 though

    I do also see you have mismatched settings for Static tRead Values this for sure will also cause issues

    Please to eliminate both our possible confusions (As many post AUTO and Set settings differently) please post the template again with ONLY your settings you have manually set, and I will post back some suggested. If everything is in AUTO, please just post AUTO for that setting With the number on the left in Parentheses. Like so I guess would be easiest >>>
    trrd ........... (3) AUTO

    I do see you meant it just like that, but some I am not sure about.

    Also, because AUTO is not always what you see on the left in your BIOS please download MemSet and post me a screenshot of that as well

    trrd will need more then 3 likely, and trfc of 52 is likely not enough for 8GB either So I do see several issues, please post back with what I ask and I can better suggest.

    You will need, which I know you tried, some MCH voltage. For 8GB you may need 1.4-1.5 (+.3-.4) and the ram of course set.

    But to sum it all up I think overall use of AUTO on many things may be your main issue, it just wont work especially for 8GB

  5. #5
    Join Date
    Aug 2008
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    Default Re: GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right

    Hey Lsdmeasap!
    I appreciate your help so far!

    Just to clarify though, this is with 4gb total (2x2gb), not 8.
    I'll repost the information for you soon and try what you wrote but it may be a day before I can get back to you.

    Thanks!
    I will post asap!

  6. #6
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-DS3L with Corsair 2x4096 wont set mem speed right

    Ahh! I guess I read your spec wrong then. 2x4090 looked like 8GB to me!

    PLEASE post me a full template of the settings you are using that fail and I can get your some better settings

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