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  1. #1
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    Questions from a new/old overclocker

    Hello All,

    This is my first post here so please be gentle.

    To give you a little insight I am not completely ignorant of building computers but I do have to say I am completely ignorant of overclocking them in the modern world. Considering the last time I overclocked a computer it was done by setting the multiplier and/or FSB to increase speeds and then bumping the CPU voltage to stabilize, and it was all done with jumpers on the motherboard. This was before they started to lock the multiplier on the CPU, before they started to integrate the memory controller into the CPU, and before DDR RAM. With all that upfront, my recently built rig is listed below. However, even though I have the links set to newegg I didn’t necessarily buy everything from newegg. The intent was to build an eyefinity6 rig that I could play around with and game on, trying to get back into the hobby of being a PC enthusiast.

    Case: SILVERSTONE Temjin Series TJ11B-W Black Aluminum ATX Full Tower Computer Case

    Motherboard: ASUS Crosshair V Formula/Thunderbolt AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS BIOS version 00903

    CPU: AMD Phenom II X6 1100T Black Edition Thuban 3.3GHz, 3.7GHz Turbo Socket AM3 125W Six-Core Desktop Processor HDE00ZFBGRBOX

    Cooling: ZALMAN CNPS9900MAX-R 135mm Long life bearing CPU Cooler Red LED

    RAM: G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000) Desktop Memory Model F3-17000CL11Q-16GBXL

    PSU: CORSAIR Professional Series Gold AX1200 (CMPSU-1200AX) 1200W ATX12V v2.31 / EPS12V v2.92 SLI Certified 80 PLUS GOLD Certified Modular Active PFC Power Supply

    GPU: 2 X VisionTek 900373 Radeon HD 6870 2GB 256-bit GDDR5 PCI Express 2.1 x16 CrossFireX Support Video Card with Eyefinity

    SSD: 2 x OCZ Vertex 3 VTX3-25SAT3-60G 2.5" 60GB SATA III MLC Internal Solid State Drive (SSD)

    HDD: 2 x Western Digital VelociRaptor WD6000HLHX 600GB 10000 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

    BD: 2 x ASUS Black 12X BD-R 2X BD-RE 16X DVD+R 12X DVD-RAM 8X BD-ROM 8MB Cache SATA Blu-ray Burner BW-12B1ST/BLK/G/AS

    Monitor: 6 x HP Promo ZR22w Black 21.5" 8ms Full HD Height Adjustable Widescreen LCD Monitor 250 cd/m2 1000:1

    Questions:
    1) Even though I already purchased the parts and tossed them together, does anyone have any pro’s or con’s for any of the parts I listed. Just trying to get a sanity check if I am to expect any problems and yea I guess I should have asked this question before purchasing?
    2) Overclocking what parts provides the most performance increase. For example, FSB, multiplier, RAM, North Bridge, Hyper transport, etc?
    3) What is the best process to conduct an over clock, as in what is the best order to start over clocking. Start with the FSB, start with the multiplier, etc?
    4) Which voltages go with which component in order to gain stabilization?
    5) What are good operating temperatures?
    6) What are the maximum for voltages?
    7) How do you use multipliers to decrease the clock on PCI-express so they still run within specified parameters?
    8) What is the max probable overclock on air, “I know mileage will vary”?
    9) Best software to test stability and to burn in the computer?
    10) Is there any other useful information?

    For right now I would like to achieve a 4.0Ghz overclock, maybe more?, on air. Mainly for the point to just try it. Later down the road I plan on getting a water cooling system and probably a piledriver CPU (yes way in the future) 32gb of RAM and 7 series video cards, if they make them with 6x displayport, and use the old parts to build my wife a machine, with a smaller case. But that is in the future.

    Thanks for the help!

    -FF

  2. #2
    ROG Guru: White Belt Array DocLotus's Avatar
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    Hi;

    I am currently running an FX-6100 but was running a Phenom II 965BE four core at a little over 4GHz. As that was close to what you have in mine I will provide the settings that I used then...


    Current CPU Speed: Normal 3400MHz OC...40937MHz
    CPU Ratio: Normal... 17x OC... 20x
    CPU Bus/PEG Frequency: Normal... 200MHz OC... 204MHz
    HT Link Speed: Normal... 2013MHz OC... 2009MHz
    CPU Manual Voltage (Max safe 1.5 V or slightly higher): Normal... 1.35v OC... 1.4875v
    Core Temp: at idle 38-40C, Normal 60c OC 70c
    Max Allowable Temp: Normal... 65-70c, Shutdown 90c, Burn up 97c
    Tj. Max: 79c
    TDP: Normal... 120w OC... 124w (this may be a bit low)

    The above was with a Corsair H50 water cooler and two fans.

    These numbers might get your started; just keep in mind they are for a different (but similar) CPU and system.

    Hope this helps.

    Doc
    Retired... and Loving it

  3. #3
    ROG Guru: White Belt Array DocLotus's Avatar
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    2) Overclocking what parts provides the most performance increase. For example, FSB, multiplier, RAM, North Bridge, Hyper transport, etc?

    By far the biggest overall boost in performance (for me) was...
    1: Going from an embedded video to to a high-end discrete video card; my frame rates in FSX jumped 12x.
    2: Adding two OCZ Vertex III's made everything faster including cutting boot times by more than half.

    But as you already have those items I would say...
    1: CPU Ratio... Try increasing it one step at a time.
    2: CPU Bus/ PEG Frequency... increasing this will allow higher CPU Ratios and Turbo CORE Ratios.
    3: CPU Manual Voltage... (usually a max of around 1.5v) allows you to move the CPU Ratio and Turbo CORE Ratios higher.

    Keep an eye on the color of the voltage adjustment; most items in black are completely safe, items in yellow are also usually safe (just go slow; one step at a time for starters), items in red use only with caution or when you really know what you are doing.

    Good Over Clocking;
    Doc
    Retired... and Loving it

  4. #4
    ROG Guru: Brown Belt Array NemesisChild PC Specs
    NemesisChild PC Specs
    MotherboardASUS Maximus X Hero (WI-FI AC)
    ProcessorIntel i7 8700K
    Memory (part number)G.Skill F4-3600C16D-16GTZR
    Graphics Card #1Nvidia GTX 1070 Ti FE
    Graphics Card #2Nvidia GTX 1070 Ti FE
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung 970 PRO 512GB NVMe M.2
    Storage #2WD Black 2TB 7200 RPM 64MB Cache
    CPU CoolerNZXT Kraken X42
    CaseCooler Master HAF 932 Advanced
    Power SupplyEVGA SuperNova 1200 P2
    Keyboard Logitech G910 Orion Spark
    Mouse Logitech G703 Wireless
    Headset Logitech G Pro
    Mouse Pad SteelSeries
    OS Windows 10 Home x64 (UEFI)
    Network RouterLinksys WRT1900AC
    NemesisChild's Avatar
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    Nice choice of components, you picked the cream of the crop with that Corsair AX1200W.
    I could write a term paper on overclocking, but it's takes time & patience and trial & error to learn.
    You should be able to easily do 4.0GHz with the CPU and a CPU/NB overclock of 2800MHz.
    The Thuban has a good IMC, but you probably won't be able to hit 2133MHz with your memory.


    Good luck...
    Intel i7 8700K@ 5.2GHz (Delidded)
    ASUS Maximus X Hero (Bios 1801)
    NZXT Kraken X42
    G.Skill TridentZ@ 4000MHz CL16 2x8GB
    SLI: 2x Nvidia GTX 1070 Ti FE@ 2025/2025MHz
    OS: Samsung 970 PRO 512GB NVMe M.2
    Storage: Samsung 960 EVO 500GB NVMe M.2
    Storage: 2x Samsung 850 EVO 500GB
    Storage: WD Black 7200 RPM 64MB Cache 2TB
    EVGA SuperNova 1200 P2
    Cooler Master HAF 932 Advanced

  5. #5
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    Thanks everyone for the help so far, this is where I have gotten:

    First let me say that ROG connect is a very cool tool, I like it allot. I didn't use it for OCing, but for monitoring temps etc I like it.

    Next thing is that I have not stress tested this system yet.

    Multiplier: 16x (-05x) i did this to get an even 4.0ghz overclock
    FSB: 250mhz (+50 mhz)
    CPUv: 1.37500v (forgot what stock was)
    CPU-NBv: 1.36250v (forgot what stock was)
    RAMv: 1.6v (auto set it at 1.5v but manufacture spec said 1.6v so I manually set it to 1.6v)

    I found this to be interesting.
    TGT Speed: 4.0ghz
    Speed reported on POST: 4046mhz
    Speed reported by CPU-Z: 4013.5mhz
    Windows Properties says: 4.01ghz

    Temps (idle)
    Room: 24c
    CPU: 35c
    Motherboard: 26c

    Just for a quick benchmark I used Windows Experience Index
    CPU: 7.6 (was 7.5)
    RAM: 7.6 (was 7.5)
    Graphics: 7.8
    Gaming Graphics: 7.8
    Primary Disk: 7.8

    More Questions:
    1) Do the voltages look good, or will I be needing to increase them when I stress test, or will I end up frying it if I try to stress test it? I started them at 1.45v for the CPU and 1.4v for the CPU-NB and worked backwards until it couldn't boot into Windows.
    2) When I do stress test how will I learn what voltage to push up if something does fail?
    3) What is the best software to stress test with and for how long?
    5) Do the temperatures look normal with air cooling and this kind of OC?
    6) When I stress test what temperatures should I be weary of?
    4) Is it common for various places to report the speed differently?
    5) I have the RAM set to stock timings, can I decrease the timings sine I am running at slower than rated speed?
    6) Even though its not the best benchmark tool, what the best way to get my CPU and RAM up another 0.2 points in the WEI?
    7) How much farther could I push this system with the current cooling?

    That is all for now, thanks for all the help, any further advice would be greatly appreciated!

    -FF

  6. #6
    ROG Guru: Brown Belt Array NemesisChild PC Specs
    NemesisChild PC Specs
    MotherboardASUS Maximus X Hero (WI-FI AC)
    ProcessorIntel i7 8700K
    Memory (part number)G.Skill F4-3600C16D-16GTZR
    Graphics Card #1Nvidia GTX 1070 Ti FE
    Graphics Card #2Nvidia GTX 1070 Ti FE
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung 970 PRO 512GB NVMe M.2
    Storage #2WD Black 2TB 7200 RPM 64MB Cache
    CPU CoolerNZXT Kraken X42
    CaseCooler Master HAF 932 Advanced
    Power SupplyEVGA SuperNova 1200 P2
    Keyboard Logitech G910 Orion Spark
    Mouse Logitech G703 Wireless
    Headset Logitech G Pro
    Mouse Pad SteelSeries
    OS Windows 10 Home x64 (UEFI)
    Network RouterLinksys WRT1900AC
    NemesisChild's Avatar
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    With your memory, 250MHz CPU clock is a good starting point.
    With a 4.0GHz overclock, you will probably need CPU voltage in the 1.45-1.475v range to run stable.
    Take baby steps, set the CPU/NB at the next multiplier level down from 3000MHz, which I believe is roughly 2775MHz.
    Set your CPU/NB voltage at 1.30-1.35v and up your DRAM voltage to around 1.61250v.

    I run two cold boot instances of HyperPI (32M) stress test on all cores before I declare 100% stability.
    Also, I then run AIDA64 stress test for one solid hour just to verify stability.
    Others use Prime95 to test system stability.

    Under heavy (100%) CPU (stress test conditions), make sure the CPU core temps do not exceed 62c.
    Intel i7 8700K@ 5.2GHz (Delidded)
    ASUS Maximus X Hero (Bios 1801)
    NZXT Kraken X42
    G.Skill TridentZ@ 4000MHz CL16 2x8GB
    SLI: 2x Nvidia GTX 1070 Ti FE@ 2025/2025MHz
    OS: Samsung 970 PRO 512GB NVMe M.2
    Storage: Samsung 960 EVO 500GB NVMe M.2
    Storage: 2x Samsung 850 EVO 500GB
    Storage: WD Black 7200 RPM 64MB Cache 2TB
    EVGA SuperNova 1200 P2
    Cooler Master HAF 932 Advanced

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