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




  1. #21
    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
    DDR18V shows 2.080V after loading optimized defaults, saving and restarting.
    This exludes the posibility they have been over voltaged.

    So if I am understanding correctly you get errors with both DDR-800 and DDR-1066 and they are always, or often, at the same address and same bits?
    I don't know how dual channel works but I think that swaping the sticks should change either the address or the bits in error.
    So if this is the case do you get the errors at the same address or bits? I would think this may point if the problem is with the memory or the motherboard (or may it not?).

  2. #22
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    I noticed one of the clips on the CPU Heatsink retention bracket was loose. The pressure was therefore uneven on the cpu and motherboard... i am thinking this may have had something to do with the occasional glitches. I switched to the stock heatsink for now. Since remounting the heatsink, I haven't had anymore errors. I have run memtest86+ for at least 20 hrs total. I even overclocked to 3.8ghz by adjusting (400fsb, 2.66D) and ran the test for 9hrs without any errors. So far everything seems to be 100% stable. I am going to try putting in the other 2 sticks of ram and see what happens.

    Please let me know if you see any settings that could be tweaked.

    Allso, i am thinking of getting a new heatsink. Which of the following do you recommend?
    Newegg.com - ZEROtherm BTF90 92mm Silent UFO CPU Cooler - CPU Fans & Heatsinks
    Newegg.com - Tuniq Tower 120 Universal CPU Cooler 120mm LED Cooling Fan and Fan Controller/Heatsink - CPU Fans & Heatsinks
    Newegg.com - XIGMATEK HDT-S1283 120mm Rifle CPU Cooler - CPU Fans & Heatsinks
    Newegg.com - ARCTIC COOLING Freezer 7 Pro 92mm CPU Cooler - CPU Fans & Heatsinks

    Here is my current bios:
    Code:
    BIOS SETTINGS
    
    > MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................:.+0.5
    CPU Frequency ...........................: 3.80GHz( 400x9.5)
    
    
    >> 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
    > 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 ..............: [2.66D]
    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 [ 64]
    tRTP...................................: 4 [ 4]
    Command Rate (CMD) ....................: 0 [ 2]
    
    Channel A
    Driving Strength ......................: [1066MHz]
    
    Static tRead Value.....................: 10 [ 8]
    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.....................: 10 [ 8]
    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 [1.200V]
    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

  3. #23
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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 noticed one of the clips on the CPU Heatsink retention bracket was loose. The pressure was therefore uneven on the cpu and motherboard...
    Well if that don't beat all.
    That important thing is that you figured it out. I knew it couldn't be a bios issue. I know its not on you list, but the TRUE is tried and true for a lot of people.
    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.


  4. #24
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Unfortunately the problem has surfaced again...

    The heatsink is seated properly... and it was stable for several days!

    When it became unstable i upped the MCH voltage to 1.3, changed the tRead to 10, and also tried upping VDIMM to 2.120... then I set the cpu voltage up one notch and I achieved stability. I changed MCH,tRead and VDIMM to the previous values and it was still stable. The cpu voltage kept my system stable for around 18 more hrs...

    for some reason, the system seems to always become unstable at night after i sleep (doesn't seem to matter whether the system is idling or running memtest86+)! When I wake up, sometimes I find my system is frozen.

    Also, another note... when I touch the ram, they are pretty hot... How hot is too hot? I let my system rest for 1 hr and then turned it back on and things appear stable.

    Is it possible one of the components is abnormally sensitive to heat?
    Last edited by Plexor; 07-01-2009 at 04:16 AM.

  5. #25
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    OH NO.....man that sucks.
    I guess you can try removing the side panel. Then use a desk fan and blast it on your mobo and ram and see if it helps.

    I have a IR thermometer but I am not aware of what safe temps are supposed to be for memory. I will check the temps on the memory ht shields for both boxes and report back to you. Mind you it is just for relative comparison only, plus I am only running my ram at 1.92v with the Gskills, and 2.00v with the Buffalo pyro firestix, while your at 2.1v. I will run prime for both cases and check the temps and report back later.
    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.


  6. #26
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Ok, ram memtest for 30min for the Buffalo ram at 2.00v, with side panel off of a CM690 case. There is a bottom mount 120mm fan intake fan blowing up and some of the cool air is reaching the memory sticks. Room temp is 25c. I directed the laser at the top end of each of the memory sticks where there was an opening exposing some of the ic chips. Max temp about 52.6c. The HS around that area was about 52c. Put my finger on it and it was warm to the touch. Body temperature at 36.9c. Not going to bother with the Gskills as the Buffalo is probably more relevant as the vdimm is closer to yours.
    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.


  7. #27
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Quote Originally Posted by BoombasticSloth View Post
    Ok, ram memtest for 30min for the Buffalo ram at 2.00v, with side panel off of a CM690 case. There is a bottom mount 120mm fan intake fan blowing up and some of the cool air is reaching the memory sticks. Room temp is 25c. I directed the laser at the top end of each of the memory sticks where there was an opening exposing some of the ic chips. Max temp about 52.6c. The HS around that area was about 52c. Put my finger on it and it was warm to the touch. Body temperature at 36.9c. Not going to bother with the Gskills as the Buffalo is probably more relevant as the vdimm is closer to yours.
    Thanks for checking that. Unfortunately I don't have an IR thermometer... My sticks can be warm... but now that I have the 3 120mm case fans in my Antec p182 case set to high, the ram is actually running cooler and is barely warm to the touch.

    Up until now, the system has been stable since my last post. Once it became unstable, I tried changing tRead and voltages.. didn't help so I changed it back. I then pulled chip 2 and 4 and then ran memtest again. After looping test #2, 10 times I found errors were only showing up in the 0-2048M range. I turned off the machine and swapped dimm 1 and dimm 3. I looped test #2 10 more times. I found the errors were still in the 0-2048M range. I turned off the machine and swapped again. The errors were still in 0-2048M range. Clearly the problem is not with the RAM.

    It seems to me that the motherboard is the issue.... perhaps a bad soldering joint or chip... idk...

    I am going to carefully inspect the dimm slots and look for anything else out of the norm... and then I think i will RMA the board...

    edit
    also, the errors do not always show up on only dimm1... they have shown up on the other slots too... in this instance with only 2 dimms installed, the problem was only showing up on dimm1.
    Last edited by Plexor; 07-02-2009 at 01:36 PM. Reason: added more details about the slots

  8. #28
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    What is even more strange is that when i turn off my computer for 10 minutes and turn it back on... the error disappears.

    Cpu is running around 40C... ram is not warm... hard to believe it is temperature.

    Such an elusive problem

  9. #29
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    I just tried another PSU... memtest ran 7 hrs and has showed a couple errors. Definitely not the PSU.

    Ok.. i am going to RMA the board asap...
    Any idea if there is a chance it could be the CPU/Ram?

    Also, how long does the Gigabyte RMA usually take?

  10. #30
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    Default Re: GA-EP45-UD3P + 4GB/8GB Corsair Dominator DDR2 1066 Intermittent Problems

    Probably for most people, the only definite way of knowing if the problem was your cpu or ram is if you swap them into a known good board, and/or swapping a known good cpu or ram into your board and then testing.
    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.


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