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Thread: EP45-DS3L Stability Issue




  1. #1
    Join Date
    Oct 2008
    Posts
    1

    Default EP45-DS3L Stability Issue

    Hi,

    I recently put together a new computer, and am having serious stability issues. I've tried a number of settings suggested on this board and others, but still am having issues with Windows locking up (which can only be solved by holding down the power button for several seconds to turn off the computer.) After I turn the power back on, the board appears to be trying to POST but continually fails until I remove power entirely for a moment. After I restore power, the computer boots and runs until the next lock-up (which can be anywhere from 5 mins to 2 hours.) I'm not looking to overclock or anything (although that would be nice ultimately) but right now I'll settle for just running stable.

    Here's my hardware:

    Gigabyte EP45-DS3L mobo (Using F7 bios; I tried F9 as well but switched to F7 after reading some people say that solved similar issues)
    Intel 8400 core2duo
    4GB Corsair XMS2 dominator twin2x (advertises 4-4-4-12 timings @ 2.1v)
    Antec 650w power supply
    eVGA 8800 GTS 640mb video

    I've run memtest on each of my memory sticks one stick at a time overnight, so I'm pretty confident in ruling out bad memory. Here's a completed form I've seen you request on other posts with my current BIOS settings:

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Fast
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 3.00 Ghz (333x9)


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

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


    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800 mV
    PCI Express Clock Drive.................: <<< 900 mV
    CPU Clock Skew (ps)....................: <<< 0pS
    MCH Clock Skew (ps)...................: <<< 50pS


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: 333 (also tried auto, 400)
    System Memory Multiplier ..............: Auto
    Memory Frequency (Mhz) ..............: 800
    DRAM Timing Selectable ................: [Manual]

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

    Advanced Timing Control
    tRRD........................................... 6
    tWTR.......................................... 14
    tWR............................................ 16
    tRFC........................................... 75
    tRTP........................................... 7
    Command Rate (CMD) ....................:2

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

    Channel A
    Static tRead Value.........................: 14
    tRD Phase0 Adjustment...................:<<< 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.........................: 14
    tRD Phase0 Adjustment...................:<<< 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….……….........................: 1.225V
    CPU Termination…..... 1.200V*.......: <<< Leave
    CPU PLL…………………....1.500V*.......: <<< Leave
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above)
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above)

    MCH/ICH
    MCH Core…………….....1.100V...........: << 1.300V (also tried 1.260, 1.280v)
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< Leave
    ICH Core…………...……1.100V............: <<< Leave

    DRAM
    DRAM Voltage ……....1.800V............: 2.100V
    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] *Note* Must be enabled to flash from USB

    Thanks in advance for your advice,

    -Matthew

  2. #2
    Join Date
    Aug 2008
    Location
    La Jolla, CA
    Posts
    175

    Default Re: EP45-DS3L Stability Issue

    First of all, I would definitely use F9 BIOS, as the earlier versions have an obvious problem instability coming back from S3, and who knows what else was fixed? Next, your CPU clock speed shows "disabled", so you definitely need to set that. I wouldn't set those advanced settings, like skew, until I tried to get the basics right. And I'd set the memory to use the 4.4.4.12 settings at 2.1v and let the system set the other parameters first. You need to look at the latch frequency and the multiplier to make sure you are setting those correctly. I went for 400Mhz and made the cpu-memory 1:1. This seemed to get things stable for me. I've never needed to set CPU Core voltage...just let the system change it as appropriate. That goes for reference voltages. Bumping MCH up a bit does seem to help in many cases (I think mines at 1.2v). In short, it looks like you are dithering with too many of the secondary settings and not getting the primary ones right first. I'm sure LSD will give you more detailed instructions, but hopefully this gets you moving in the right direction. Once those settings are right, the system will be rock solid.
    Gigabyte GA-EP45-DS3L (BIOS F9); E7200 Core2Duo 2.53Ghz 1066Mhz FSB 3MB L2 (OC to 3.4Ghz); SuperTalent 2x2G DDR2-800 PC6400 CL 5-5-5-12 (T800UX4GC5); Seagate 500GB SATA2 7200 32mb cache HD; EVGA 8800GT 512MB Superclocked Edition
    Ultra X-connect X2 550-watt PSU; Vista x64 SP1 and OpenSUSE 11.0 (KDE 4.1)

  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: EP45-DS3L Stability Issue

    Are you flashing properly? Meaning after you flash you go in the BIOS and load and APPLY optimized defaults and then save and reboot back to the BIOS to make all changes, including disk changes. If not you MUST flash this way, otherwise the new BIOS is not ever fully implemented nor is the old CMOS or DMI Pool cleared.

    DO NOT USE @BIOS, here is my guide on flashing if you had not looked at it yet >>>
    http://forums.tweaktown.com/f69/welc...support-24883/

    As suggested above, if you do plan to use S3 sleep then you will HAVE to use the latest BIOS, if not then anyone that supports your CPU will be fine. And yes, newer is not always better. So maybe F7 or F8 if you did not like F9. But there will be missing settings if you go back to far in BIOS versions.

    And yes, you will likely not need any MCH Skew until you are overclocking

    Here is what I would suggest for you to start with with the above hardware at stock


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Fast
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 3.00 Ghz (333x9)


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 333Mhz
    PCI Express Frequency (Mhz) .........:100

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


    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800 mV
    PCI Express Clock Drive.................: <<< 900 mV
    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...............: 333 (also tried auto, 400) << When/If you change this you must also Have correct voltages applied, correct Static tread Values (See below). Set those things, and change this ONLY and reboot to make any other changes you need to. Thing is to change as little as you can when changing this setting. If you still get not joy, be sure twr and twtr are set high as well when trying to change this and then reboot.

    I would suggest you use 333 for now, but you can use 400 (it may not perform as well)

    System Memory Multiplier ..............: 2.40B
    Memory Frequency (Mhz) ..............: 800
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................4
    tRCD .........................................4
    tRP'........................................... 4
    tRAS.......................................... 12

    Set all highest noted below and then lower later testing as you go.

    Ohh, I see you do have them all pretty high, I guess you need some other adjustments. Sorry I reply as I read... Guess I should stop that sometime. HAHA

    I will put tweaked ranges in ()'s for you for later
    Advanced Timing Control
    tRRD........................................... (3-5)6
    tWTR.......................................... (3-6, Please benchmark last 9-11 as it may be better)14

    tWR............................................ (4-6)16
    tRFC........................................... (48-50 ~ 52-62)75
    tRTP........................................... (2-5)7
    Command Rate (CMD) ....................:2

    Driving Strength Profiles
    Driving Strength ............................800-1066 ( I find a step above ram speed is best)

    Channel A
    Static tRead Value.........................: (6-8 MCH 333 Latch / 8-10 MCH Latch 400) 14
    tRD Phase0 Adjustment...................:<<< 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.........................: (6-8 MCH 333 Latch / 8-10 MCH Latch 400) 14
    tRD Phase0 Adjustment...................:<<< 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….……….........................: 1.225V << Auto or Normal if for stock. If you manually set this, and you are not overclocking it may be too little. As this board has about .6 or so vdrop to windows, and then even less at load. So 1.225 may only be 1.16 or so. Best to leave in Auto for now until you overclock. If you did manually set this, it could be part of your problem

    CPU Termination…..... 1.200V*.......: <<< Leave
    CPU PLL…………………....1.500V*.......: <<< Please set to what you see for stock, as Auto tends to use to much
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above)
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above)

    MCH/ICH
    MCH Core…………….....1.100V...........: << 1.300V (also tried 1.260, 1.280v) << I would try 1.24 or so, and you may also want to try Less then stock. But I think you manually set your CPU voltage and it was too low is what may be your main issue as your other things look good enough to boot for sure
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< 1.55
    ICH Core…………...……1.100V............: <<< 1.15-1.2

    DRAM
    DRAM Voltage ……....1.800V............: 2.100V

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