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Thread: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!




  1. #1
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    Question GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Hi

    I have recently purchased 8GB of DDR3 ram as spec'd below. (4X2GB)

    I'm really after something that doesn't sacrifice reliability for speed. Not wanting a heavy OC'd machine, but while of course getting things as fast as can be expected.

    When I run it though Memtest86+ I get perfect runs when testing one pair at a time but when all 4 sticks are in I get a ton of errors - Particularly in tests #5 and #7.
    Any ideas?

    Do I need to up some voltages? I have tried raising DRAM Voltage to 1.6v and this does not fix.
    Also worth noting that after fitting ram I did indeed run "Load Optimized Defaults" in bios.


    CPU = E8500
    Motherboard = GA-EP45T-DS3R Rev 1.0
    BIOS Version = F3
    Ram = G-Skill F3-12800CL9D-4GBNQ (4 sticks - 8GB total!) DDR3-1600 CL9-9-9-24 1.5-1.6Volt


    Current BIOS settings as below:

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ..................: [Auto]
    CPU Clock Ratio ..........................: [9X]
    Fine CPU Clock Ratio......................: [+0.5]
    CPU Frequency ............................: 3.16GHz (333x9.5)
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Disabled]
    CPU Host Frequency (Mhz) ...............: 333 Mhz
    PCI Express Frequency (Mhz) ............: [Auto]
    
    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 ..............: [Auto]
    Memory Frequency (Mhz) ........: 1333
    DRAM Timing Selectable ................: [Auto]
    
    Standard Timing Control
    CAS Latency Time..............................9 Auto
    tRCD .........................................9 Auto
    tRP'..........................................9 Auto
    tRAS.........................................24 Auto
    
    
    
    Advanced Timing Control
    tRRD........................................... 4 Auto
    tWTR........................................... 5 Auto
    tWR............................................ 10 Auto
    tRFC........................................... 74 Auto
    tRTP........................................... 5 Auto
    Command Rate (CMD) ............................ 0 Auto
    
    
    
    Channel A
    Static tRead Value........................... 7 Auto
     tRD Phase0 Adjustment....................... 0 Auto
    tRD Phase1 Adjustment........................ 0 Auto
     tRD Phase2 Adjustment ...................... 0 Auto
     tRD Phase3 Adjustment....................... 0 Auto
    Trd2rd(Different Rank)....................... 9 Auto 
    Twr2wr(Different Rank)....................... 7 Auto 
    Twr2rd(Different Rank)....................... 7 Auto 
    Trd2wr(Same/Diff Rank)....................... 10 Auto 
    
    
    Channel B
    Static tRead Value........................... 7 Auto
     tRD Phase0 Adjustment....................... 0 Auto
    
    (.....Here I can't see the rest!?)
    
    Motherboard Voltage Control
    
    CPU
    CPU Vcore............................... [Auto]
    
    CPU Termination......................... [Auto]
    
    CPU PLL................................. [Auto]
    
    CPU Reference........................... [Auto]
    
    MCH/ICH
    MCH Core............................... [Auto]
    MCH Reference.......................... [Auto]
    MCH/DRAM Ref........................... [Auto]
    ICH I/O................................ [Auto]
    
    
    DRAM
    DRAM Voltage.............................. [1.500V]
    DRAM Termination.......................... [Auto]
    Ch-A Data VRef............................ [Auto]
    Ch-B Data VRef............................ [Auto]
    Ch-A Address VRef......................... [Auto]
    Ch-B Address VRef......................... [Auto]
    
    Advanced Settings
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect.................: [Enabled]
    Load-Line Calibration.....................: [Disabled]
    CPU Enhanced Halt (C1E)...................: [Enabled]
    C2/C2E State Support......................: [Disabled]
    x C4/C4E State Support....................: Disabled
    CPU Thermal Monitor 2(TM2) ...............: [Enabled]
    CPU EIST Function.........................: [Enabled]
    Virtualization Technology.................: [Enabled]
    
    Integrated Peripherals
    Legacy USB Storage Detect ..............[Enabled]

  2. #2
    Chike is offline Senior Member
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    This is DDR-1600, it shouldn't need 1.6v at 1333.
    Try increasing MCH Core, begin with 1.16v and go up to 1.28v as needed, untill you don't get errors from memtest86+., then you can set it one step higher.
    Run a few hour Prime blend toture, and if all goes well you can try and set XMP prifile for 1600 and/or Performance Enhance Turbo.

    There is a newer bets BIOS F4c on GB site, up to you if you want to update ot not, you can leave it for later and see if you are good with current BIOS.

  3. #3
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Thanks.

    So have upgraded Bios to F4c, and gone up as high as 1.28v MCH Core, and still lots of errors in Memtest.

    Any other ideas to try?

  4. #4
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    With your current settings, test with only two memory modules in memory slots #2 & #4 and run Memtest86+ v4.1 (or newer) for 8 - 10 passes using only test #5. If test #5 completes with no errors, run 3 or more full passes. If there are any errors, tell us the pass number, test number and the failing addresses. If there are no errors, continue with the next test.

    Providing all of the information in steps 1 - 4 from the linked post below, will let us better help you and cut down on possible errors. The screen-shots should be saved before you test with all four memory modules.

    Using all four memory modules, use the default settings in http://forums.tweaktown.com/gigabyte...tml#post295784, post #5 after you first load OPTIMIZED bios defaults. You might need to initially set MCH Core = 1.05 and then manually set:
    System Memory Multiplier ......... : [3.20B] <--- this will test at 1066MHz for now
    Standard Timing Control
    CAS Latency Time......................9
    tRCD .......................................9
    tRP'..........................................9
    tRAS........................................24
    Static tRead Value..................... 8 (for memory channels A & B)

    **edit** Use the recommended manual settings in the post instead of AUTO, even though you're not overclocking yet.

    Repeat both of the above Memtest86+ tests and report error details.
    Last edited by profJim; 04-09-2011 at 12:55 PM.
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  5. #5
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    CPU Vtt may also need increased for 8GB of memory, most users are overclocking so raise this already and don't realize it.

    You may also need to keep in mind that this memory is not really designed for P45 boards (They added P45 later), and may or may not ever function smoothly with an additional kit.

    As you can see here, only approved for Gigabyte P55 boards
    G.SKILL-Products

    You may get it working though with enough tweaking, since you had one kit working fine.

    Have you tested each stick one by one yet to be sure none are faulty? If not I would actually do that now before anything else, test each stick one by one with Memtest, a single pass will do just to see if they are all in working order. Use the same settings and same slot for each stick duing this test.

  6. #6
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Ok so step one: I have tested 2 sticks at a time, the first pair only in slot 2 & 4 then the second pair only in slots 1 & 3.
    With both these two combinations I have run about 100 passes with only test #5 and about 10 full passes and these all come up clean no errors. Is there still merit in testing each stick on its own or am I right in thinking that this should prove the memory itself is ok and I can move on with other settings/tests?

    Also, Lsdmeasap, what is the CPU Vtt setting in my BIOS called (I don't see that text used), and how much could it be raised by?

    ProfJim I will work though your suggested settings shortly and report back...

    Thanks heaps for your help guys! It is really appreciated.

    Paul

  7. #7
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Ya that would prove they are ok, as long as both sets of sticks registered the full amount in those tests, did you notice 4GB each time?

    CPU Termination is your Vtt, if you are at stock FSB then maybe try 1.225-1.25 for Vtt

    Good luck tinkering, you may be better off buying memory made for these boards (IE 1.7-1.9V), or sticking with one set of these for now.

  8. #8
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Ok quick update... Things are definitely looking better at that speed.

    I tried a #5 test with all 4 modules in and over 17 passes only got TWO errors! This is a huge gain as before I was getting 10s of thousands.

    Test #5, Pass 6, Failing address 000700b53f8 - 1792.7MB Good 10000000 Bad 10400000 Err Bits 00400000 Count 1
    Test #5, Pass 14, Failing address 000780b5378 - 1920.7MB Good 04000000 Bad 04400000 Err Bits 00400000 Count 2

    may be better off buying memory made for these boards (IE 1.7-1.9V)
    GIGABYTE - Motherboard - Socket 775 - GA-EP45T-DS3R (rev. 1.0)
    Specs page tells me the board has "4 x 1.5V DDR3 DIMM sockets"??
    This is the RAMs specs:
    G.SKILL-Products

    I actually got the RAM because of this guys post:
    GA-EP45T-DS3R 2x2GB DDR3 Issue

    did you notice 4GB each time?
    Yup each stick registers the correct amount of memory.

    CPU Termination is your Vtt, if you are at stock FSB then maybe try 1.225-1.25 for Vtt
    So if I leave this running at 1066MHz there is no gain in raising this? I haven't actually tried this yet.

    At the end of the day I am not opposed to down-rating the memory in favor of stability; I'm guessing however I am aiming for a 100% on all passes in memtest as a goal...

  9. #9
    Lsdmeasap's Avatar
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Well yes, stock DDR3 is 1.5V, but what I meant was performance memory for DDR3 when this board came out was 1.7-1.9V. The memory you have now was designed with P55/X58 in mind, hence the 1.65V rating.

    Yes, Vtt increase may help even at stock speeds. You are getting errors with the memory only at 1066Mhz? That could mean it's never going to work, or it could be erroring because you have the memory set too low (Believe it or not, yes this can cause problems). Try your testing with all of the above mentioned in mind, but with the memory at it's rated speed of 1600Mhz for now.

  10. #10
    Chike is offline Senior Member
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Aer you still with 1.28v MCH Core? Try 1.3-1.34v.
    Is this all at DDR-1333 settings?

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