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Thread: GA-EP45-DS3L will not post sometimes (4x1GB ram)




  1. #1

    Default GA-EP45-DS3L will not post sometimes Vista 64 bit (4x1GB ram)

    Replaced my old Asus MOBO with this one just the other day. At first to even get it to boot up I had to start with 1 stick of RAM. I am running a Q6600 GO stepping, 4 x 1GB Crucial Ballistix Newegg.com - Crucial Ballistix 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory which appears to be the same RAM in Lsdmeasap's sig, and 4870 1GB video card.

    This CPU has always OC'ed easily to 3.0GHz I am now getting random restarts when trying to boot up and it will not post at all unless I take it down to 1 stick of RAM and the slowly add another stick each time I reboot. The error message I get is that "the system has experienced boot failures because of overclocking or change of voltages" Themost recent time I was only able to get it to boot with 3 sticks.

    I was able to get all 4 sticks to boot and post just fine; but after leaving the PC off all night I am now back to the continuous restarts after leaving the PC off all night and it not posting at all; again unless I go back to 1 stick. All of my bios settings are below and changes I made in red, if not in red I have not changed it at all and it is the settings assigned when I selected load optimail bios.

    Any ideas 1) why the restarts now from cold boot and no POST and 2) that error message about voltage or overclocking? My voltages seem to be in line from what I can tell.

    F8 Bios
    <link rel="File-List" href="file:///C:%5CDOCUME%7E1%5Ccgalde%5CLOCALS%7E1%5CTemp%5Cmso html1%5C01%5Cclip_filelist.xml"><o:smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="address"></o:smarttagtype><o:smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="Street"></o:smarttagtype><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style> st1\:*{behavior:url(#ieooui) } </style> <![endif]--><style> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} pre {margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Courier New"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} --> </style><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]-->
    MB Intelligent Tweaker(M.I.T.)<o:p></o:p>
    Robust Graphics Booster ...............: Auto<o:p></o:p>
    CPU Clock Ratio ..........................: 9<o:p></o:p>
    Fine CPU Clock Ratio.....................:.0<o:p></o:p>
    CPU Frequency ...........................: <o:p></o:p>
    <o:p> </o:p>
    <o:p> </o:p>
    Clock Chip Control <o:p></o:p>
    Standard Clock Control<o:p></o:p>
    CPU Host Clock Control..................: [Enabled] <o:p></o:p>
    CPU Host Frequency (Mhz) ............: 334 <o:p></o:p>
    PCI Express Frequency (Mhz) .........: 102<o:p></o:p>
    <o:p> </o:p>
    C.I.A.2 .................................:[Disabled]<o:p></o:p>
    <o:p> </o:p>
    <o:p> </o:p>
    Advanced Clock Control [Press Enter]<o:p></o:p>
    <st1:street w:st="on"><st1:address w:st="on">CPU Clock Drive</st1:address></st1:street>...........................: <o:p></o:p>
    <st1:street w:st="on"><st1:address w:st="on">PCI Express Clock Drive</st1:address></st1:street>.................: <o:p></o:p>
    CPU Clock Skew (ps)....................: <o:p></o:p>
    MCH Clock Skew (ps)...................: <o:p></o:p>
    <o:p> </o:p>
    <o:p> </o:p>
    DRAM Performance Control<o:p></o:p>
    Performance Enhance...................: [STANDARD]<o:p></o:p>
    Extreme Memory Profile (X.M.P.).....: Disabled<o:p></o:p>
    (G)MCH Frequency Latch...............: [Auto]<o:p></o:p>
    System Memory Multiplier ..............: 2.5 only other choice is 2.0 if want to go lower
    Memory Frequency (Mhz) ..............: 835/ would be 668 if went to 2.0 above<o:p></o:p>
    DRAM Timing Selectable ................: [Manual]<o:p></o:p>
    <o:p> </o:p>
    Standard Timing Control<o:p></o:p>
    CAS Latency Time........................ 5<o:p></o:p>
    tRCD ......................................... 5<o:p></o:p>
    tRP'........................................... 5<o:p></o:p>
    tRAS.......................................... 15<o:p></o:p>
    <o:p>Even though my ram says it is 4-4--4-12 at 2.2V going with aboe to ensure stability.
    </o:p>
    <o:p> </o:p>
    Advanced Timing Control<o:p></o:p>
    tRRD........................................... 3<o:p></o:p>
    tWTR.......................................... 3<o:p></o:p>
    tWR............................................ 5-6<o:p></o:p>
    tRFC........................................... was 48 moved to 65<o:p></o:p>
    tRTP........................................... 3<o:p></o:p>
    Command Rate (CMD) ....................:2<o:p></o:p>
    <o:p> </o:p>
    Driving Strength Profiles<o:p></o:p>
    Driving Strength ............................ 1066<o:p></o:p>
    <o:p> </o:p>
    Channel A<o:p></o:p>
    Static tRead Value.........................:5/6-7 (Depending on other voltages and strap being used)<o:p></o:p>
    <o:p> </o:p>
    tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well<o:p></o:p>
    tRD Phase1 Adjustment...................:Auto<o:p></o:p>
    tRD Phase2 Adjustment .................:Auto<o:p></o:p>
    tRD Phase3 Adjustment..................:Auto<o:p></o:p>
    Trd2rd(Different Rank)....................:Auto <o:p></o:p>
    Twr2wr(Different Rank)...................:Auto <o:p></o:p>
    Twr2rd(Different Rank)...................:Auto <o:p></o:p>
    Trd2wr(Same/Diff Rank)..................:Auto <o:p></o:p>
    Dimm1 Clock Skew Control...............:Auto ps<o:p></o:p>
    Dimm2 Clock Skew Control...............:Auto ps<o:p></o:p>
    <o:p> </o:p>
    Channel B<o:p></o:p>
    Static tRead Value.........................:5/6-7 (Depending on other voltages and strap being used)<o:p></o:p>
    <o:p> </o:p>
    <o:p></o:p>Motherboard Voltage Control<o:p></o:p>
    Voltage Type.………... Manual<o:p></o:p>
    CPU<o:p></o:p>
    CPU Vcore….……….........................: 1.325<o:p></o:p>
    CPU Termination…..... 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<o:p></o:p>
    <o:p> </o:p>
    CPU PLL…………………....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<o:p></o:p>
    <o:p> </o:p>
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly <o:p></o:p>
    <o:p> </o:p>
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly <o:p></o:p>
    <o:p> </o:p>
    MCH/ICH<o:p></o:p>
    MCH Core…………….....1.3...........: << 1.2-1.26 (amount needed will depend on Strap used and tRD used)<o:p></o:p>
    <o:p> </o:p>
    MCH Reference….…….0.800V...........; <<< May need adjusted, depends on your board and CPU being used, and all other voltages. See my signature for how to adjust.<o:p></o:p>
    <o:p> </o:p>
    MCH/DRAM Ref.…......0.900V...........: <<< Leave<o:p></o:p>
    ICH I/O……………….....1.550V............: <<< 1.5-1.55<o:p></o:p>
    ICH Core…………...……1.100V............: <<< 1.14-1.2<o:p></o:p>
    <o:p> </o:p>
    DRAM<o:p></o:p>
    DRAM Voltage ……....1.800V............: 2.22v<o:p></o:p>
    DRAM Termination .…0.900V............: <<< Leave<o:p></o:p>
    Channel A Reference 0.900V............: <<< Leave<o:p></o:p>
    Channel B Reference 0.900V............: <<< Leave<o:p></o:p>
    <o:p> </o:p>
    Advanced Settings<o:p></o:p>
    Limit CPUID Max. to 3.....................: [Disabled]<o:p></o:p>
    No-Execute Memory Protect............: [Disabled]<o:p></o:p>
    CPU Enhanced Halt (C1E)................: [Disabled]<o:p></o:p>
    C2/C2E State Support....................: [Disabled]<o:p></o:p>
    x C4/C4E State Support..................: [Disabled]<o:p></o:p>
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]<o:p></o:p>
    CPU EIST Function.........................: [Disabled]<o:p></o:p>
    Virtualization Technology................: [Disabled]
    <o:p> </o:p>


    <o:p></o:p>
    Last edited by Deerhunter716; 02-24-2009 at 11:36 PM.

  2. #2
    Join Date
    Sep 2008
    Posts
    990

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    You already increased the MCH Core voltage which is good. The enxt thing I would try is adjust the MCH Reference voltage. The stock setting for this is 63.3% of whatever MCH Core is and you should try other values betwenn 60 and ~66% of MCH Core.
    This setting can improve signal quality between RAM and memory controller and can improve RAM stability.


  3. #3

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    So maybe try MCH Reference voltage of .84? And thanks for the help. Everything else look good?

  4. #4
    Join Date
    Sep 2008
    Posts
    990

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    What system memory multiplier are you using exactly? Is there an A,B or C (or maybe even D) after the 2.5 (e.g. 2.5B)? This may also be a problem. At your FSB a multiplier ending with B, A or C can cause problems as they are for use with lower FSBs.


  5. #5

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    It only shows with Bios F8, 2.0 then jumps to 2.5 with no letters. So with 2.5 running DDR2 835 which is barely an overclock on the ram. Also my RAM is rated for 2.2, but I read bumping it to 2.22 may help also? Or should I take it back to 2.2?
    Last edited by Deerhunter716; 02-25-2009 at 12:28 AM.

  6. #6
    Join Date
    Sep 2008
    Posts
    990

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    Well whatever voltage the RAM is really running at always differs a little bit from what you set in BIOS, any my P45 DS3L undervolts the RAM a bit with the F10 BIOS, so setting it to 2.22 or even a little higher won't hurt.
    If you don't see a letter after the system memory multiplier then set the MCH frequency latch to 333 manually. Maybe there is no 2.5 multiplier then anymore but you can use 2.4. You wouldn't notice a difference between the two RAM speeds anyway.


  7. #7

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    Well has rebooted a few time successfully. True test in the morning after being off all night. By setting MCH Frequency latch at 333 I now have 2.4B which sets it to DDR2 802.

    I also have my CPU PLL at 1.55 the minimum manual setting and Term at 1.3 I will post back tomorrow with new results and THANKS a ton for the help.

  8. #8

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    Back to same issue again. It ran fine all day yesterday and in the evening as I gamed on it hard for a few hrs before bed. Every full cold boot (turned off overnight) it will not post.

    I just now had to take out 3 of the sticks and it boots every single time with 1 x 1 GB stick. Any other voltages to try as? MCH Voltage Reference is at 66% of MCH. Should I up MCH and the MCH Reference more? I have a Coolermaster Stacker case with lots of fans blowing in from the side, 1 from the front, and exhaust fans in the back and top so cooling should not be an issue.

    Also of note is that I MUST let the PC boot and load windows up fully with the 1x stick; then shut it down; add 2x more sticks and let it load into windows fully; shut it down and insert 4th stick and PRESTO it boots and runs all day with no issues. Voltage on RAM bumped to 2.26 in case there is any drop since this will not boot up at lower than 2.2v.

    I am just curious could it be anything else that only impacts cold boot? I am assuming it has to be a voltage and that it only boots up now after loading into windows after inserting sticks one by one that the mobo has gotten the full charge and has some left over charge in the MOBO to reboot just fine after inserting each stick if that makes any sense, lol

    Would too low of a Vcore impact it at all --> currently at 1.325 for 3.0 GHz overclock and I see on the sticky for overclocking the following voltage chart below with the Q6600 listed at 1.38.

    CPU Voltage chart. (minor overvoltage for stability)
    E4300 1.35
    E6300 1.35
    E6400 1.35
    E6600 1.375
    E6700 1.375
    X6800 1.375
    Q6600 1.38

    Also of note when I loaded the default BIOS with no overclocks at all running stock CPU and Ram settings the same boot issue existed.
    Last edited by Deerhunter716; 02-25-2009 at 09:06 PM.

  9. #9

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    So here is an update on voltages as well if this helps. In BIOS I set Vcore at 1.38125 --> in Everest and CPUZ it shows actually is 1.33

    DDR2 Ram = 2.28 in BIOS --> Everest shows as 2.22v (2.2v is recommended for my ram) but have seen where some folks have to run 2.3 to get it stable. Should I up this or Vcore anymore to fix this issue? Or try other ideas?

  10. #10
    Join Date
    Sep 2008
    Posts
    990

    Default Re: GA-EP45-DS3L will not post sometimes (4x1GB ram)

    It's normal that the CPU-Z reading (close to the real voltage) is lower than the value you set in the BIOS.

    As I told you in the PM you should go ahead with the BIOS update. Don't forget to use "Load optimized defaults" before and after the update!

    Also, does the RAM run fine when the CPU is not overclocked?


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