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Thread: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems




  1. #11
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Quote Originally Posted by Plexor View Post
    It is giving me a headache as this intermittent problem seems to be so irratic.
    Do you have access to another computer to test your memory? Do you have access to another set of memory to test on you mobo?

    Those bios settings that we tried are very relaxed and forgiving and given what you have mentioned about the nature of the intermittent problem, I am wondering if there is a short in your system somewhere. Do you recall if any hardware changes were made to your computer before all this irratic behavior started?

    Another thing is to test for other faulty hardware. Can you unplug all of your non-essential hardware from your computer, ie. both hard drives, floppy, peripheral cards, optical drive , open your side panels, unplug case fans, etc. and run memtest each time after you unplug each hardware item. Do you recall which test number from memtest gave you the errors? Try going directly to that test to save time. It might help you troubleshoot if one of your hardware is causing the problem. Ie. if you pull out a hd, and then memtest runs problem free, then it may be the hd that is causing the problem. If there doesn't appear to be anything wrong with the peripheral items, then you may test if there is short between your mobo and your case. For that you have to pull the mobo out of the case and set up the computer on an open desktop. Set the mobo on the non-static bag that came with your mobo. Just plug in the essentials to get your computer to run memtest and see how that goes.

    Tip: Load memtest on a usb stick, floppy, and/or cd. This way you can use memtest from a floppy or an usb stick when you unplug your optical drive. You get the idea....

    Good luck.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  2. #12
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Seems like somebody else is having problems with Dominator ram as well.....

    http://forums.tweaktown.com/f69/ga-e...minator-32687/
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  3. #13
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    I pulled the mobo out and set it on the antistatic bag, plugged in power and my gfx card. 2 dimms are installed (same as before)....

    I set up a USB memtest86+ boot stick..

    so far no errors in 2 hrs of testing with memtest86+... this doesn't really mean anything, however, as my system was resting a while and before i have had days of running memtest86+ without errors....

    i will let this run a few hours and see if any errors pop up... if not, i will plug in the hdd and boot up for further tests.

  4. #14
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Hope it works out and you are able to find the beastie.
    Good luck.

    ps. since you have everything open, you may also test each of your voltage rails with a digital multimeter when under load, just to rule out psu.
    Last edited by BoombasticSloth; 06-24-2009 at 08:30 AM.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  5. #15
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    I have been running Memtest86+ for 14 hrs (24 passes)... 375 errors.

    I was running same bios settings as the original post except I manually set the termination voltages to what you said on your earlier post. I don't have a DMM at the moment. I am going to buy one today.

    Do you think it is even possible that the PSU could cause this?

    The error rate right now is much lower than before, but it is still there.

    I don't understand why my bios even shows 5-7-7-24 timing as 'auto values' right now for ram..sometimes is shows proper values of 5-5-5-15.

    Here are the settings I used on my test with motheboard outside of case and just GFX, RAM, USB Keyboard and USB stick plugged in:

    BIOS SETTINGS

    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.................: [Enabled]
    CPU Host Frequency (Mhz) ..............: 333 Mhz
    PCI Express Frequency (Mhz) ...........: 100
    
    C.I.A.2 ...............................:[Disabled]
    
    >>>>> Advanced Clock Control
    > 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 ..............: [3.20B]
    Memory Frequency (Mhz) ................: 1066
    DRAM Timing Selectable ................: [Manual]
    
    >>>>> Standard Timing Control
    CAS Latency Time.......................: 5 [ 5]
    tRCD ..................................: 7 [ 5]
    tRP'...................................: 7 [ 5]
    tRAS...................................: 24 [ 15]
    
    Set all Suggested below to highest Values first. Then later you can lower, one at a time, testing as you go
    
    >>>>> Advanced Timing Control
    > Advanced Timing Control [Press Enter]
    tRRD...................................: 4 [ 4]
    tWTR...................................: 4 [ 4]
    tWR....................................: 8 [ 8]
    tRFC...................................: 68 [ 68]
    tRTP...................................: 4 [ 4]
    Command Rate (CMD) ....................: 0 [ 2]
    
    Channel A
    Driving Strength ......................: [1066MHz]
    
    Static tRead Value.....................: 8 [ 9]
    tRD Phase0 Adjustment..................: 0 [Auto] <<< Leave for all below as well
    tRD Phase1 Adjustment..................: 0 [Auto]
    tRD Phase2 Adjustment ................: 0 [Auto]
    tRD Phase3 Adjustment.................: 0 [Auto]
    Trd2rd(Different Rank).................: 8 [Auto]
    Twr2wr(Different Rank).................: 8 [Auto]
    Twr2rd(Different Rank).................: 7 [Auto]
    Trd2wr(Same/Diff Rank).................: 9 [Auto]
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]
    
    Channel B
    Driving Strength ......................: [1066MHz]
    
    Static tRead Value.....................: 8 [ 9]
    tRD Phase0 Adjustment..................: 0 [Auto] <<< Leave for all below as well
    tRD Phase1 Adjustment..................: 0 [Auto]
    tRD Phase2 Adjustment ................: 0 [Auto]
    tRD Phase3 Adjustment.................: 0 [Auto]
    Trd2rd(Different Rank).................: 8 [Auto]
    Twr2wr(Different Rank).................: 8 [Auto]
    Twr2rd(Different Rank).................: 7 [Auto]
    Trd2wr(Same/Diff Rank).................: 9 [Auto]
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]
    
    > Motherboard Voltage Control
    >>> CPU
    Load-Line Calibration..................: [Disabled]
    CPU Vcore..............................: 1.18750V [1.18750V]
    CPU Termination........................: 1.200V [1.200V] << If overclocking Please set to stock, Auto overvolts this way to much. Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore. Auto is fine if not overclocking
    CPU PLL................................: 1.500V [1.500V] << If overclocking Please set to stock, Auto overvolts this way to much. Optimal range for overclock would be 1.5-1.65. Auto is fine if not overclocking
    
    CPU Reference..........................: 0.760V [0.760V] << .64% Of Vtt (Termination above) Auto Will set this correctly
    >>> MCH/ICH
    MCH Core...............................: 1.100V [1.100V]
    MCH Reference..........................: 0.760V [0.760V]
    MCH/DRAM Ref...........................: 0.900V [1.050V]
    ICH I/O................................: 1.500V [1.500V]
    ICH Core...............................: 1.100V [1.100V]
    
    >>> DRAM
    DRAM Voltage...........................: 1.800V [2.100V]
    DRAM Termination.......................: 0.900V [1.050V] << Leave
    Channel A Reference 0.900V.............: 0.900V [1.050V] << Leave
    Channel B Reference 0.900V.............: 0.900V [1.050V] << 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] << Enabled if you use Vmware/Virtual PC
    
    > Integrated Peripherals
    Legacy USB Storage Detect .............: [Disabled] << *Note* Must be enabled to flash from USB
    Last edited by Plexor; 06-24-2009 at 10:18 PM. Reason: Added bios settings

  6. #16
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    btw, with mobo outside my case, temps are as follows:

    Ambient: 27C (48% RH)

    Current System Temp: 48C
    Current CPU Temp: 43C

    Voltages (reported in bios):
    Vcore: 1.156V
    DDR18V: 2.080V
    +3.3V: 3.328V
    +12V: 12.302V

    Are those normal values?

  7. #17
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    one thing ive noticed are that some memory addresses seem to pop up repeatedly with errors... not always but they do show up repeatedly

    for example, when restarting test 2 a few times, 0004c0067b4 (1216.3MB) always seems to be the first address to show an error. Sometimes it passes, sometimes it doesn't.

  8. #18
    Chike is offline Senior Member
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Quote Originally Posted by Plexor View Post
    I don't understand why my bios even shows 5-7-7-24 timing as 'auto values' right now for ram..sometimes is shows proper values of 5-5-5-15.
    I am glad you mention it. I have reported a a similar behavior with my board but never received a reply.
    It seems timings are changed according to performance mode X.M.P setting and multiplier.
    My question is, if you select timings to be on auto, are the timings shown in BIOS are the same as reported by memtest86 or windows?
    And out of curiosity what is DRAM voltage in HW Monitor with optimized defaults?
    My board over voltage them with defaults by 0.044v to 2.144v, I have no idea if it can harm them but it is over their specs.

  9. #19
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Quote Originally Posted by Chike View Post
    I am glad you mention it. I have reported a a similar behavior with my board but never received a reply.
    It seems timings are changed according to performance mode X.M.P setting and multiplier.
    My question is, if you select timings to be on auto, are the timings shown in BIOS are the same as reported by memtest86 or windows?
    And out of curiosity what is DRAM voltage in HW Monitor with optimized defaults?
    My board over voltage them with defaults by 0.044v to 2.144v, I have no idea if it can harm them but it is over their specs.
    I just set "DRAM Timing Selectable (SPD) [Auto]"
    the auto timings are still '5-7-7-24' after a restart. Memtest86+ shows 5-7-7-24 also.

    One thing i noticed just now. If i set X.M.P. to auto or Profile 2, the timings show up correctly for the 'auto values.'

    DDR18V shows 2.080V after loading optimized defaults, saving and restarting.

  10. #20
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Auto will set whatever it thinks will boot, so 577-20 must be what it has decided. Of course you should set things manually and not use Auto or SPD

    If your ram is 555-15 ram set that, very simple to do

    More MCH is likely going to be needed if you are using 4GB or above

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