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Thread: EP43-S3L OC problem! Pls help!




  1. #1
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    Question EP43-S3L OC problem! Pls help!

    Hi everybody!

    Iam a beginnner in overclocking, and Im new here too. I came here to get an answer for my problem...
    I havent seen too much threads with this kind of mobo, so i decided to start one!

    My system:
    GA-EP43-S3l
    Core2Duo E6550
    2X1gb kit of G.Skill rams (F2-8500CL5D-2GBPK)

    I successfully OC-d my CPU to 2,94Ghz (415X7), but i cant go any further...
    I did it with the following options: (just the important info)

    CPU clock ratio: 7X
    CPU host freq: 415
    PCI express freq: 100
    CIA2: DIS
    CPU clock drive 800mV
    PCI express clock drive 800mV

    DRAM:
    performance enhace: standard
    extreme memory profile: DIS
    MCH freq latch: 400
    System memory multi: 2.0D
    DRAM timing: 5-5-5-15 (advanced timings on auto)

    Voltages:
    CPU core: 1,35
    CPU termination: 1,20
    CPU PLL: 1,55
    Reference: 0,805
    MCH core: 1,10
    ICH I/O: 1,55
    DRAM voltage: 2,0

    When I increase the fsb to 420, my system cant boot...
    My question is: Is this the limit of my CPU or the mobo, or i did something wrong with the options?
    I hope someone could help me out with this...

    Thanx in advance!

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: EP43-S3L OC problem! Pls help!

    The E6550 can usually overclock to 3.2 - 3.4GHz, with a maximum of 3.5GHz (7x500). It is my understanding that the P43 setup will not o/c as high as the P45 chipset.

    Increase MCH core to: 1.22
    Then increase CPU Termination to: 1.22

    With your current settings, the Reference volts should probably be set to AUTO.

    You can also try the 2.0B strap instead of 2.0D.
    I would also manually set the Static tRead for both channels (A & B) to 7 or 8.

    In order to help you, we need your full bios settings. Until then, skip the 420 setting and try 425, 430, 435, etc up to 450. There may be a FSB hole that won't let your system boot until you've raised the setting above the dead zone.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  3. #3
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    Default Re: EP43-S3L OC problem! Pls help!

    Thx for the reply and for the advices profJim! Ill check this tomorrow and reply as soon as I can!

  4. #4
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    Default Re: EP43-S3L OC problem! Pls help!

    Im here again! :)
    So I tried out the advices with no success... I tried to increase the fsb, voltages, and nothing helped me out. I couldnt manage to get above fsb 415...
    Im getting very sad because i think its a hardware limit, especially my mobo's limit. :(
    Any suggestions? Is there someone who can help me out?

    I took some photoes of my bios settings, maybe it can help:

    http://img25.imageshack.us/img25/1240/20090317343.jpg
    http://img7.imageshack.us/img7/9240/20090317344.jpg
    http://img13.imageshack.us/img13/2382/20090317345.jpg
    http://img13.imageshack.us/img13/7322/20090317346.jpg
    -ASUS P5Q Pro + TR HR-05 IFX + TR HR 09U
    -Intel Core2Duo E6550
    -2X1GB G.Skill DDR2 1066Mhz (F2-8500CL5D- 2GBPK)
    -Sapphire Radeon HD4830 512MB HDMI
    -Samsung F1 750GB HDD + Sharkoon Cooler
    -LC Power LC6550GP2 550W PSU
    -CoolerMaster Centurion 534 +plus


    Nokia N95 8GB :)

  5. #5
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    Default Re: EP43-S3L OC problem! Pls help!

    So I got the answer:
    Gigabyte GA-EP43-S3L | Motherboards | Reviews | Custom PC
    The fsb limit for this mobo is 415 :S
    So the thread can be trashed by an admin! Thx!
    Last edited by kely88; 03-18-2009 at 02:01 AM.
    -ASUS P5Q Pro + TR HR-05 IFX + TR HR 09U
    -Intel Core2Duo E6550
    -2X1GB G.Skill DDR2 1066Mhz (F2-8500CL5D- 2GBPK)
    -Sapphire Radeon HD4830 512MB HDMI
    -Samsung F1 750GB HDD + Sharkoon Cooler
    -LC Power LC6550GP2 550W PSU
    -CoolerMaster Centurion 534 +plus


    Nokia N95 8GB :)

  6. #6
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    Default Re: EP43-S3L OC problem! Pls help!

    It can be that the board won't go higher, but newer BIOSes tend to increase the max FSB a board can achieve. So the max FSBs from early reviews may be lower than what the board is actually capable of.

    So basically what I'm saying is that you should update the BIOS and try again :)


  7. #7
    profJim's Avatar
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    Default Re: EP43-S3L OC problem! Pls help!

    Quote Originally Posted by kely88 View Post
    So I got the answer:
    Gigabyte GA-EP43-S3L | Motherboards | Reviews | Custom PC
    The fsb limit for this mobo is 415 :S
    So the thread can be trashed by an admin! Thx!
    Even if the FSB is limited to 415, you still have memory tuning options that will improve system performance.

    1) With a memory speed of 830, you should be able to tighten your memory to run at 4-4-4-12 or maybe 4-4-4-10.

    2) Using the 2.40B memory multiplier, your memory speed will increase from 830 to 996 with 5-5-5-15 memory timings.

    3) Using the 2.66D memory multiplier and an FSB = 400, your memory will run at its rated 1066 speed.

    4) Using the 2.66D memory multiplier and an FSB = 415, your memory MIGHT run at 1104.

    I'm not familiar with the enhanced memory options for your mobo. With the current AUTO default settings, you're not getting the most out of your overclock. Let us know what options are available and we can advise you further.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  8. #8
    Join Date
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    Default Re: EP43-S3L OC problem! Pls help!

    I use this mobo with a e8400 and I can reach 419FSB!

  9. #9
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: EP43-S3L OC problem! Pls help!

    While I do not see a FSB Limit of 4xx on these boards officially I do see most only being able to reach 415-425 FSB.

    Since your CPU multi is 7, you don't have much choice in getting a higher clock really. You will need to either pickup a P45 or P35. That would be cheaper then a New CPU for sure

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