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Thread: Z77A-GD65 + i5 2500K Overclocking - How to start?




  1. #61
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Hehe, you know it...

    I just read the post you wrote after Chike, I missed it, I have to say I agree with you, LLC on this MSI board is not great at all, when set to the highest level I got instant BSODs with Prime, leaving it on auto seems to work best. However, LLC was a champ in my old P45-UD3P and it enabled me to stabilize 3.8GHz without any issues, when it was disabled, however, I got BSODs no matter how much Vcore I applied, I could raise the Vcore to the moon and I would still get a BSOD with LLC disabled. With this MSI board I actually read that some people achieve better stability when setting it to its medium and not it's highest setting, apparently it causes more spikes in the voltage, oh well...

    One more question, in your results file you have FFTs running up to 4096K, but in the AVX version when selecting Large FFT it starts with 128K and the biggest one is 1024K, Small FFTs are 8K-16K, why such a big difference in large FFTs in the AVX version?
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
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  2. #62
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Apparently the newest Prime95 version has changed the default FFT range settings.
    With the 25.11 version, the default test settings in Run A Torture Test are:

    Blend Test:
    Min FFT size (in K) = 8
    Max FFT size (in K) = 4096
    Memory to use (in MB) = 1600
    Time to run each FFT size (in minutes) = 15
    Run FFTs in place = disabled

    Small FFT test:
    Min FFT size (in K) = 8
    Max FFT size (in K) = 64
    Memory to use (in MB) = 0
    Time to run each FFT size (in minutes) = 15
    Run FFTs in place = enabled

    Large FFT test:
    Min FFT size (in K) = 128
    Max FFT size (in K) = 1024
    Memory to use (in MB) = 8
    Time to run each FFT size (in minutes) = 15
    Run FFTs in place = enabled

    You can also select the Custom option where you can manually change each value.
    With custom settings you can repeat a single FFT size or select your own min/max FFT range, memory use, etc.
    Happy testing!!
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  3. #63
    Chike is offline Senior Member
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Small FFT 8-16? 8 to 64 uasually, large size the same.

  4. #64
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Actually I haven't looked at the largest FFT in blend, it could be 4096 but in large FFT the largest is 1024, I just hope it'll pass without any issues :)

    I'll update tomorrow after I successfully finish my small and large FFT tests.

    As always, thanks :)
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
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    PSU: Seasonic X-650 80+ Gold
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    OS: Windows 7 Ultimate x64
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  5. #65
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Wel, can't believe it, another BSOD on a 320K FFT, this time it happened after 3 hours and 20 minutes... again the BSOD code was 0x124

    I'm starting to give up on Prime... Is it possible that my CPU needs more than 1.4 to do 4.6? I only needed around 1.35 to do 4.4, then again, I wasn't using the AVX version of Prime so perhaps it wasn't totally stable as well...

    Should I try HCI? Should I raise Vcore? Maybe raise PLL to 1.85 and try again?

    HELP!
    Last edited by Zach_; 06-20-2012 at 04:47 AM.
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  6. #66
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Test with HCI Memtest to see how it does.
    I don't know if it uses AVX instructions.
    It would be good to know how HCI Mestest does.

    Save your current bios settings, then test your system using Large FFTs with stock cpu speeds.
    It might be worthwhile to search using: 2500K OR 2600K Prime95 AVX
    A quick look/see turned up 2500k passes 20 runs LINX, but fails prime95 blend with 0x124
    Q9650 @ 4.10GHz [9x456MHz]
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    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
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    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
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    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
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  7. #67
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Thanks, running 4 instances of MemTest now with 1680MB each, let's see how it does...

    And yeah I actually read that thread and I have now raised PLL to 1.85 and running HCI Memtest, I seriously don't think it's the Vcore... 1.4 should be enough for 4.6, maybe even too much?

    If Memtest runs fine for say 8 hours, and I pass 10 runs of IBT, but still fail Prime 95, could it be that maybe this version of Prime has corrupted files or something? I never recall getting so many BSODs with Prime.

    All I wanna do is stable 4.6 :(
    Last edited by Zach_; 06-20-2012 at 05:04 AM.
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  8. #68
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    It's possible that tweaking PLL might help.
    Let's make sure that the current Prime95 version is OK with your cpu at stock settings.
    If your system is stable at stock settings, you might want to see how it does with a more modest 4.2GHz overclock.

    When overclocking with my Core2Duo, I found that small cpu voltage increases were necessary with higher overclocks.
    At some point, the cpu would "suddenly" need much higher voltage increases with a 100MHz cpu increase and it required significant tweaking to pass all of the stress tests.

    With your recent tests, was Turbo mode disabled?
    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
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  9. #69
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    Default Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    Yeah Turbo is always disabled, I only do raw OC, no eco feature is turned on, CPU always at full throttle.

    Reading a bit about this, quite a few people had to revise their OCs when Prime AVX was released, it seems that it's much more brutal on the IMC leading to a possible VTT voltage instability on my end.

    I'm already at 1.09, I could try going for 1.1 with a current Vcore of 1.4 and leave PLL at 1.84, what do you think?

    I haven't tested my system fully at stock settings, just did a quick 1 hour blend to see that nothing crashes.
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  10. #70
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    Question Re: Z77A-GD65 + i5 2500K Overclocking - How to start?

    On page 2-16 in your mobo user manual:

    Long duration power limit (W)
    This field allows you to adjust the TDP power limit for the long duration.

    Long duration maintained (s)
    This field allows you to adjust the maintaining time for long duration power limit.

    Short duration power limit (W)
    This field allows you to adjust the TDP power limit for the short duration.

    Primary/ Secondary plane turbo power limit (W)
    These fields allow you to adjust the TDP limit for the primary/ secondary plane turbo.

    1/2/3/4-Core Ratio Limit
    These fields show the 1/2/3/4 core ratio limit of CPU.

    When your current test completes, let us know the settings.

    BTW, I don't what "optimal" values should be used.
    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
    .


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