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Thread: Unable to run 4 x 2gb with GA-EP45-UD3R mb




  1. #11

    Default Re: Unable to run 4 x 2gb with GA-EP45-UD3R mb

    my vcore is at 1.32500 and my termination is at 1.56 and its constantly failing within minutes of prime95. Is my vcore too low or do I keep going adding voltage to cpu termination?
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

  2. #12

    Default Re: Unable to run 4 x 2gb with GA-EP45-UD3R mb

    I tried the 1.32 vcore and was curious about 1.58 cpu term voltage and while running prime95, the temps went up to the upper 60's, 68ish instead of running 58ish as before. so I stopped the tested and wanted to wait for your input. I'm almost thinking of dropping the fsb (maybe 475) so I can drop the mch and hopefully the cpu term voltage. What is affecting or causing the cpu term to be so high and what should it be? Kind of lost.
    Last edited by tonyjanderson1; 01-14-2009 at 09:38 PM.
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

  3. #13

    Default Re: Unable to run 4 x 2gb with GA-EP45-UD3R mb

    We'll, ive got a second setup for normal usage until I can get a high overclock stable. I have the following running very cool and stable:

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9
    Fine CPU Clock Ratio.....................:.5
    CPU Frequency ...........................: 3.8


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 400 Mhz
    PCI Express Frequency (Mhz) .........: 100

    C.I.A.2 .................................:[Disabled]


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


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.5A
    Memory Frequency (Mhz) ..............: 1000
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................5
    tRAS..........................................15

    Advanced Timing Control
    tRRD........................................... 4
    tWTR.......................................... 6
    tWR............................................ 6
    tRFC........................................... 62
    tRTP........................................... 5
    Command Rate (CMD) ....................:2

    Driving Strength Profiles
    Driving Strength ............................1066

    Channel A
    Static tRead Value.........................: 10
    tRD Phase0 Adjustment...................:Auto <<< 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.........................: 10
    tRD Phase0 Adjustment...................:Auto <<< 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….……….........................:1.24 (forgot the last two numbers after but theres only one 1.24 voltage option)
    CPU Termination…..... 1.200V*.......: 1.24
    CPU PLL…………………....1.500V*.......: 1.5
    CPU Referen.…………....0.755V*.......: auto
    CPU Reference2………,,0.800V*.......: auto

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.24
    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............: 2.1
    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]

    Integrated Peripherals
    Legacy USB Storage Detect ..............[Disabled]

    I'll have to work on tightening the memory values next for this build. Would like a 4k+ overclock but i'm starting to wonder if its worth it.

    I was also doing some more reading on the Vtt, which is the termination voltage between the cpu and mch. To me, it seems it would be better while trying to find a working fsb to set the mch to auto first while trying to find a stable Vtt (lower the better, heard anything over 1.4 is dangerous, for my chip, its 1.14 min, 1.2 typical (which you usually see when you load optimal default), 1.26 max and then what they call the absolute max of 1.45 ) and then find the stable mch, since it seems we have more flexibility with mch, which i'll have to find out what the maximum mch is for the ud3r board.

    Also, do you see people using more than 1.5 for the cpu pll, I have seen people set this up to 1.61 also, depending on the higher fsb.
    Last edited by tonyjanderson1; 01-16-2009 at 03:21 AM.
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

  4. #14

    Default Re: Unable to run 4 x 2gb with GA-EP45-UD3R mb

    I've tried eveything, I cant get it stable over 3.8 ghz.

    I tried 425 fsb, cpu multiplier at 9.5 for 4.0375 but I even tried the cpu multiplier at 9 for 3.825 with memory multiplier to 2.00D in both cases, same settings for everything else as previous settings documented before this post, cpu vcore at 1.26, cpu term at 1.26 and mch at 1.26, prime 95 fails in an hour. Any fsb over 400 fails.

    Nothing i've tried will get it over 3.8 stable.
    Last edited by tonyjanderson1; 01-16-2009 at 09:12 PM.
    Antec tps-650 E8500 A/C Freezer 7 pro
    Gigabyte ga-ep45-ud3r WD 640GB Vista 64
    G.Skill (2x2GB) PC2 8000 5-5-5-15 @1000
    Sapphire Radeon HD 4870 1GB 800 Gpu 1000 mem

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