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Thread: EP45-UD3P, stability gone over time




  1. #1
    Join Date
    Aug 2008
    Posts
    615

    Default EP45-UD3P, stability gone over time

    I found out Prime95 is laughing in the face of my back then rock stable setup. I am not having any crashes even while gaming though, but still it sucks and I want to do something about it, at least a little. It's mostly my custom Blend-like test (more memory, higher min FFT size; works pretty well) that doesn't last even close to one hour. In fact, it fails pretty fast.
    Few tech facts first:
    E8400
    EP45-UD3P r1.0 board with custom F11d BIOS (it has those updated ROMs)
    2x2GB of Corsair memory (C8500D series I believe)

    This used to be (one of) the stable setup I worked on for weeks back in um.. it's like 1.5 years I think:

    Code:
    MB Intelligent Tweaker(M.I.T.) 
    ******************************
    Robust Graphics Booster ..............: [Auto]
    CPU Clock Ratio ......................: [7]
    x Fine CPU Clock Ratio................: [+0.5]
    CPU Frequency ........................: []
    
    ********** Clock Chip Control ********
    
    >>>>>  Standard Clock Control
    CPU Host Clock Control................: [Enabled]
    x CPU Host Frequency(Mhz).............: [530]
    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........................: [ ]
    MCH Clock Skew........................: []
    
    ******** DRAM Performance Control ********
    
    Performance Enhance...................: [Turbo]
    Extreme Memory Profile(X.M.P.)........: [Disabled]
    (G)MCH Frequency Latch................: [Auto]
    System Memory Multiplier (SPD)........: [2.00B]
    Memory Frequency(Mhz).....800.........: 1080
    DRAM Timing Selectable (SPD)..........: [Manual]
    
    >>>>> Standard Timing Control
    x CAS Latency Time................5...: [5]
    x tRCD ...........................5...: [ 5]
    x tRP.............................5...: [ 5]
    x tRAS...........................18...: [15]
    
    >>>>> Advanced Timing Control.........: [Press Enter] 
    x tRRD............................ ...: [Auto]
    x tWTR............................ ...: [Auto]
    x tWR............................. ...: [Auto]
    x tRFC...........................  ...: [Auto]
    x tRTP............................ ...: [Auto]
    x Command Rate (CMD) .............0...: [2]
    
    >>>>> Channel A+B Timing Settings.......: [Press Enter] 
    x Static tRead Value.............. ...: [10]
    x tRD Phase0 Adjustment...........0...: Auto
    x tRD Phase1 Adjustment...........0...: Auto
    x tRD Phase2 Adjustment ..........0...: Auto
    x tRD Phase3 Adjustment...........0...: Auto
    
    x Trd2rd(Different Rank).......... ...: Auto
    x Twr2wr(Different Rank).......... ...: Auto
    x Twr2rd(Different Rank).......... ...: Auto
    x Trd2wr(Same/Diff Rank).......... ...: Auto
    
    x DIMM1 Clock Skew Control (ps).......: Auto
    x DIMM2 Clock Skew Control (ps).......: Auto
    x DDR Write Training..................: Auto
    
    >>>>> Channel A Driving Settings......: [Press Enter] 
    x Driving Strength Profile............: [1066]
    
    x Data Driving Pull-Up Level..........: Auto
    x Cmd Driving Pull-Up level...........: Auto
    x Ctrl Driving Pull-Up Level..........: Auto
    x Clk Driving Pull-Up Level...........: Auto
    
    x Data Driving Pull-Down Level........: Auto
    x Cmd Driving Pull-Down level.........: Auto
    x Ctrl Driving Pull-Down Level........: Auto
    x Clk Driving Pull-Down Level.........: Auto
    
    ****** Motherboard Voltage Control ******
    
    Voltage Types..........Normal...........Current
    -----------------------------------------------
    >>> CPU
    Load-Line Calibration.................: [Disabled]
    CPU Vcore..............1.25000V.......: [1.36250]
    CPU Termination........1.200V.........: [1.200]
    CPU PLL................1.500V.........: [1.570]
    CPU Reference..........0.760V.........: [normal]
    >>> MCH/ICH
    MCH Core...............1.100V.........: [1.280]
    MCH Reference..........0.760V.........: [0.740]@1.200 CPU Term.
    MCH/DRAM Reference.....0.900V.........: [0.900]@1.800V
    ICH I/O................1.500V.........: [1.570]
    ICH Core...............1.100V.........: [1.200]
    >>> DRAM
    DRAM Voltage...........1.800V.........: [2.100]
    DRAM Termination.......0.900V.........: [0.900]@1.800V
    Channel A Reference....0.900V.........: [0.900]@1.800V
    Channel B Reference....0.900V.........: [0.900]@1.800V

    I did some quick experimenting and did get a bit more stable, but didn't have time to do it properly yet.
    What do you think?
    Having to enable LLC kinda disturbs me. I tried going one step down with VCORE and noo way, epic blendfail straight away.
    The memory is pretty good though, it passes MemTest+ allright with this voltage and timings (auto adv. timings are 4-4-8-68-4 in the page order; keep in mind I only played around with them to have some specific values instead of auto, I am sure I could go lower), so the problem really lies in the board probably being close to or right at the FSB limit. But I am no expert on this.

    Code:
    MB Intelligent Tweaker(M.I.T.) 
    ******************************
    Robust Graphics Booster ..............: [Auto]
    CPU Clock Ratio ......................: [7]
    x Fine CPU Clock Ratio................: [+0.5]
    CPU Frequency ........................: []
    
    ********** Clock Chip Control ********
    
    >>>>>  Standard Clock Control
    CPU Host Clock Control................: [Enabled]
    x CPU Host Frequency(Mhz).............: [533]
    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........................: [ ]
    MCH Clock Skew........................: []
    
    ******** DRAM Performance Control ********
    
    Performance Enhance...................: [Turbo]
    Extreme Memory Profile(X.M.P.)........: [Disabled]
    (G)MCH Frequency Latch................: [Auto]
    System Memory Multiplier (SPD)........: [2.00B]
    Memory Frequency(Mhz).....800.........: 1080
    DRAM Timing Selectable (SPD)..........: [Manual]
    
    >>>>> Standard Timing Control
    x CAS Latency Time................5...: [5]
    x tRCD ...........................5...: [ 5]
    x tRP.............................5...: [ 5]
    x tRAS...........................18...: [15]
    
    >>>>> Advanced Timing Control.........: [Press Enter] 
    x tRRD............................ ...: [3]
    x tWTR............................ ...: [3]
    x tWR............................. ...: [4]
    x tRFC...........................  ...: [60]
    x tRTP............................ ...: [2]
    x Command Rate (CMD) .............0...: [2]
    
    >>>>> Channel A+B Timing Settings.......: [Press Enter] 
    x Static tRead Value.............. ...: [10]
    x tRD Phase0 Adjustment...........0...: Auto
    x tRD Phase1 Adjustment...........0...: Auto
    x tRD Phase2 Adjustment ..........0...: Auto
    x tRD Phase3 Adjustment...........0...: Auto
    
    x Trd2rd(Different Rank).......... ...: Auto
    x Twr2wr(Different Rank).......... ...: Auto
    x Twr2rd(Different Rank).......... ...: Auto
    x Trd2wr(Same/Diff Rank).......... ...: Auto
    
    x DIMM1 Clock Skew Control (ps).......: Auto
    x DIMM2 Clock Skew Control (ps).......: Auto
    x DDR Write Training..................: Auto
    
    >>>>> Channel A Driving Settings......: [Press Enter] 
    x Driving Strength Profile............: [1066]
    
    x Data Driving Pull-Up Level..........: Auto
    x Cmd Driving Pull-Up level...........: Auto
    x Ctrl Driving Pull-Up Level..........: Auto
    x Clk Driving Pull-Up Level...........: Auto
    
    x Data Driving Pull-Down Level........: Auto
    x Cmd Driving Pull-Down level.........: Auto
    x Ctrl Driving Pull-Down Level........: Auto
    x Clk Driving Pull-Down Level.........: Auto
    
    ****** Motherboard Voltage Control ******
    
    Voltage Types..........Normal...........Current
    -----------------------------------------------
    >>> CPU
    Load-Line Calibration.................: [enabled]
    CPU Vcore..............1.25000V.......: [1.36250]
    CPU Termination........1.200V.........: [1.220]
    CPU PLL................1.500V.........: [1.590]
    CPU Reference..........0.760V.........: [normal]
    >>> MCH/ICH
    MCH Core...............1.100V.........: [1.280]
    MCH Reference..........0.760V.........: [0.740]@1.200 CPU Term.
    MCH/DRAM Reference.....0.900V.........: [0.900]@1.800V
    ICH I/O................1.500V.........: [1.570]
    ICH Core...............1.100V.........: [1.200]
    >>> DRAM
    DRAM Voltage...........1.800V.........: [2.000]
    DRAM Termination.......0.900V.........: [0.900]@1.800V
    Channel A Reference....0.900V.........: [0.900]@1.800V
    Channel B Reference....0.900V.........: [0.900]@1.800V
    This setup passed about 10 hours of my Blend test.
    So, do you think I should go down with frequency, or not bother at all (I will be getting Sandy Bridge some time this year, depending on how impressed I will be with the boards and their features available) since it's not likely to die?
    Last edited by Octopuss; 01-08-2011 at 04:58 PM.

  2. #2
    Join Date
    Aug 2008
    Posts
    615

    Default Re: EP45-UD3P, stability gone over time

    Even more weird, despite MemTest passing well and Prime holding on for hours, I started to get totally random and frequent explorer crashes, BSODs, gaming freezes and whatever. Jeez. What damn voodoo this is :/

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