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Thread: Monitor Background Dims When Overclocked




  1. #1
    Join Date
    Feb 2011
    Location
    Boston
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    Smile Monitor Background Dims When Overclocked

    Hey guys, I just wanted to start off by saying thank you so much for providing these wonderful forums to the public. They have helped me a lot in the past 2 years resolve many overclocking (and other various) issues. Unfortunately, there is one issue that I cannot seem to figure out or find the fix for anywhere on the net. I've been looking for the past 3 days.

    Anyways, the issue I am getting is from my overclocking settings, I believe. For a whole week I tested my comp with factory default settings in my BIOS to see if random problems I was receiving was just strictly from my overclock. I have most of those errors fixed, but there is one annoyance that hasn't been fixed and did not occur when my settings were default.

    *Whenever my computer loads up and I get to the windows desktop, my monitors brightness is normal--but only for a few seconds. After about 4 seconds of loading my processes, my screen background goes extremely dim, yet my mouse is still bright. If i go inside of a game or another program all the brightness settings are correct. It just seems as though that the windows background and icons drop 50% in brightness, while my mouse pointer remains 100% bright.

    Things I have done to fix this issue in the past: I have tried updating and reinstalling video card drivers, and updating and reinstalling monitor drivers. I can temporarily fix this issue after I boot into Windows by right clicking on my desktop and selecting the Nvidia Control Panel, and then selecting "Use NVIDIA Settings."
    ImageShack® - Online Photo and Video Hosting

    Yet this fix only lasts for however long my computer is on for; as soon as I restart or shut down, the problem reappears on boot-up.

    Here is a list of my current system specs and overclocking settings:

    Windows 7 Ultimate 64-bit
    Gigabyte EP45-UD3R rev 1.1 motherboard
    Intel Core 2 Quad Q9550 @ 3.8 GHz processor
    2x2GB (4GB) 1066 G.Skill ram
    NVIDIA GeForce GTX 460 (overclocked to 830/1660/1955)
    3x32GB raided Solid State Drives by SuperTalent (Super bad choice of SSD brand)
    4-year-old 600 watt power supply
    Viewsonic VX922 19" LCD Monitor

    Here are my CPU-Z screenshots:
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    ImageShack® - Online Photo and Video Hosting

    And here are my detailed, and stable, overclocking settings (that are still in the works of perfecting):

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio ..........................:[8x]
    Fine CPU Clock Ratio.....................:.[0.5]
    CPU Frequency ...........................:2.83GHz (448x8.5)


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: [448]
    PCI Express Frequency (Mhz) .........:[100]
    C.I.A.2 .................................:[Disabled]


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


    DRAM Performance Control
    Performance Enhance...................: [Standard]
    Extreme Memory Profile (X.M.P.).....: [Auto]
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............:[2.00D]
    Memory Frequency (Mhz) ..............: [896]
    DRAM Timing Selectable ................: [Manual]

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


    Advanced Timing Control
    tRRD...........................................4
    tWTR..........................................4
    tWR............................................13
    tRFC...........................................68
    tRTP...........................................4
    Command Rate (CMD) ....................:0

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

    Channel A
    Static tRead Value.........................:11 [Auto]
    tRD Phase0 Adjustment...................:0 [Auto]
    tRD Phase1 Adjustment...................:0 [Auto]
    tRD Phase2 Adjustment .................:0 [Auto]
    tRD Phase3 Adjustment..................:0 [Auto]
    Trd2rd(Different Rank)....................:6 [Auto]
    Twr2wr(Different Rank)...................:6 [Auto]
    Twr2rd(Different Rank)...................:5 [Auto]
    Trd2wr(Same/Diff Rank)..................:8 [Auto]
    Dimm1 Clock Skew Control...............:[Auto]
    Dimm2 Clock Skew Control...............:[Auto]
    DDR Write Training......................:[Auto]

    Channel B
    Static tRead Value.........................:11 [Auto]
    tRD Phase0 Adjustment...................:0 [Auto]
    tRD Phase1 Adjustment...................:0 [Auto]
    tRD Phase2 Adjustment .................:0 [Auto]
    tRD Phase3 Adjustment..................:0 [Auto]
    Trd2rd(Different Rank)....................:6 [Auto]
    Twr2wr(Different Rank)...................:6[Auto]
    Twr2rd(Different Rank)...................:5 [Auto]
    Trd2wr(Same/Diff Rank)..................:8 [Auto]
    Dimm1 Clock Skew Control...............:[Auto]
    Dimm2 Clock Skew Control...............:[Auto]
    DDR Write Training......................:[Auto]

    Motherboard Voltage Control
    Load-Line Calibration..................: [Enabled]
    CPU Vcore..............................:1.22500 [1.25000V]
    CPU Termination........................:1.200V [1.200V]

    CPU PLL................................:1.500V

    CPU Reference..........................:0.760V

    MCH Core...............................:1.100V [1.200V]
    MCH Reference..........................:0.7600V
    MCH/DRAM Ref...........................:0.900V [1.000V]
    ICH I/O................................:1.500V
    ICH Core...............................:1.100V

    DRAM
    DRAM Voltage ..........................:1.800V [2.000V]
    DRAM Termination.......................:0.900V [1.000V]
    Channel A Reference....................:0.900V [1.000V]
    Channel B Reference....................:0.900V [1.000V]

    Advanced Settings
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Disabled]
    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................: [Enabled]



    I was wondering if the problems were occurring because of my RAM timings, or any other timings/settings between the CPU, ram and motherboard? Or, is my 4-year-old power supply just not having enough juice anymore? Once again, these problems did not occur the whole week I had everything back to default. Only after I overclocked my CPU did they start reoccurring.

    Thank you in advance for any help!
    ~SEVEN

    P.S. Sorry for the long-winded post lol...
    Last edited by SEVEN; 03-11-2011 at 11:18 AM.

  2. #2
    Chike is offline Senior Member
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    Israel
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    Default Re: Monitor Background Dims When Overclocked

    First just to verify, save your current settings in a BIOS profile(F11, you can later load them with F12) and revert to defaults, if the problem is gone then it's something with your OC settings, if not, something you have changed along the way in windows is my guess.

    Note that if you loadi optimized defaults you will have to reconfigure your RAID, so maaybe you wish to just set everything to auto in M.I.T instead.

    Your memory settings are pretty relaxed, with tRD(Static tRead Value in BIOS, Performance Level in MemSet) left auto and DDR-896.
    Are PLL, CPU & MCH references on auto? Do not leave PLL on auto, set it manually to 1.5-1.61v, not more.
    You can leave all memory refences (those that are ste to 1.0v) auto.

  3. #3
    Join Date
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    Location
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    Default Re: Monitor Background Dims When Overclocked

    Have you looked in Windows display setting? It seems to me that as Windows loads its applying a brightness setting that's too dim so check all the brightness/diplay settings in windows ect
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
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  4. #4
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    Default Re: Monitor Background Dims When Overclocked

    Ok Chike will do. Ill post back as soon as I notice if it is fixed or not in default settings. Btw... PLL, CPU and MCH are all manually set to their defaults, not auto. I read somewhere a while ago that having any of those settings on Auto while overclocking is not a good idea.

    And wazza, I've tried checking my windows settings in the past and haven't really found anything to fix the issue. I will try again right now and see what I can find.

    Thank you very much you 2 for posting. I appreciate your help with this annoyance that I'm having :D. It takes a lot of people to take time out of their busy days to lend a hand.

  5. #5
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    Default Re: Monitor Background Dims When Overclocked

    Ok Chike, I did exactly as you said. I saved a profile and named is "Overclocking 1" and then reverted back to optimized defaults. I have tested the boot up for an hour, from shutting the computer down completely to repeated restarts (10-15) and the problem does not arise.

    I think it may help to be noted that when my system is under these overclocking settings, there are times that the monitor will not dim on start-up. Or there are times where the extent of dimming is not as powerful at times than others. But about 95% of the time, no matter if I restart or shut down, as soon as windows is done loading certain settings and programs (4-8 seconds in while I see the desktop and all its icons) the screen will dim.

    Keep in mind it does take 4-8 seconds for the monitor to switch from 100% brightness initially to about 50% after it loads all my programs and start-up group items.

    So now its either my overclocking settings or could it possibly be my power supply or no way?

  6. #6
    Chike is offline Senior Member
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    Default Re: Monitor Background Dims When Overclocked

    Could be power supply, would be easy to test if you got another you can test with.
    From what you have said brigtnesn is OK when under load, or at least game load.
    Try a bit more MCH Core up to 1.26v, vcore up to 1.3v, and DRAM voltage 2.02-2.04v.

    It behave the same as power option of a laptop, mine dim to about 5-% after being idle for some time.

  7. #7
    Join Date
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    Default Re: Monitor Background Dims When Overclocked

    Ok will do. I'll post back and let you know. Thank you

  8. #8
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    Default Re: Monitor Background Dims When Overclocked

    Alright, I tried upping the MCH, the vcore and the DRAM volts as you mentioned and it didn't fix the problem. Do you have any other recommendations?

  9. #9
    Chike is offline Senior Member
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    Default Re: Monitor Background Dims When Overclocked

    Test another video card or PSU if you have any you can get.
    Are you using the latest BIOS, beta or final?

  10. #10
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    Feb 2011
    Location
    Boston
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    Default Re: Monitor Background Dims When Overclocked

    Ok I'm gonna try putting in my gtx 275 and update my bios--I don't have a spare power supply. If I update my BIOS, will that completely wipe out my raid though? I don't want to have to reinstall to fix this issue; because its clearly either my OCing, or my power supply, or maybe even something as simple as the order of my processes loading is messed up? Like if my video card software (NVIDIA settings) are loading before my monitor settings I don't know?

    I'll repost tomorrow and let you know my results.

    The funny thing is I had this problem before with my gtx 275 and my overclocked e7400. All I needed to do was set "Use NVIDIA Settings" in my display panel and it fixed it... maybe I should try installing some old video card drivers or something

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