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Thread: Is my OC safe? e7400 UD3P




  1. #1
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    Default Is my OC safe? e7400 UD3P

    Hi there, some of you might be aware I was having some OC stability problems. Well I seem to of fixed them and I have no crashes in games and everything seems to be running fine.

    My system is 20 hours prime stable using Small AND Large tests.
    I used default settings after installing prime and just ran the 2 tests seperatly. I ran the small FTF test twice both times going for 20 hours.
    I stopped it after 20 hours and had no errors. My temps topped out at 76, but were generally lower around 70 most of the time.

    My temps during Intel burn test were alot higher. Topping out at 86
    My system also passed the Intel burn test of 5 passes using maximum stress level.

    Ive taken some screenshots and ill post my complete bios settings, Could you please give me some advice if you think voltages are way too high or anything should be lowered. Or if any of the below settings should be changed. Or if you think I should push the system even more. Thanks.

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------------- : [TURBO]
    CPU Clock Ratio ---------------------- : [10X]
    Fine CPU Clock Ratio ----------------- : [0.0]
    CPU Frequency ---------------------: 4.0GHZ 10X400

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------: [400]
    PCI Express Frequency (Mhz) ---------- : [100]

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

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

    DRAM Performance Control
    Performance Enhance ------------------- : [Turbo]
    (G)MCH Frequency Latch ---------------- : [Auto]
    System Memory Multiplier -------------- : [2.00d
    Memory Frequency (Mhz) ---------------- : [800]
    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 ------------------- 3 ---------- : [Auto]
    tWTR ------------------- 3 ---------- : [Auto]
    tWR --------------------- 6 ---------- : [Auto]
    tRFC ------------------- 52 ---------- : [Auto]
    tRTP ------------------- 3 ---------- : [Auto]
    Command Rate (CMD) ----- 0 ------------ : [Auto]


    Channel A
    Static tRead Value --------- 9 --------- : [Auto]
    tRD Phase0 Adjustment ------------------ : [Auto] <-- leave this and below set to AUTO
    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 -------- 9 ---------- : [Auto]
    tRD Phase0 Adjustment ------------------ : [Auto]
    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

    Load-Line Calibration ----------------- : [Enabled]
    CPU Vcore --------------- 1.28750v ---- : [1.36875]
    CPU Termination --------- 1.200v ----- : [1.240v]
    CPU PLL ----------------- 1.500v ----- : [1.500v]
    CPU Reference ----------- 0.760v ----- : [0.785v]


    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.300v]
    MCH Reference ----------- 0.760V ------- : [.765v]
    MCH/DRAM Ref ------------ 0.900V ------- : [0.970v]
    ICH I/O ----------------- 1.500V ------- : [Auto]
    ICH Core ---------------- 1.100V ------- : [Auto]
    DRAM
    DRAM Voltage ------------ 1.800V ------- : [2.00v]
    DRAM Termination -------- 0.900V ------- : [0.910v]
    Channel A Reference ----- 0.900V ------- : [0.910v]
    Channel B Reference ----- 0.900V ------- : [0.910v]

    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 ---------------------- : [Enabled]
    Virtualization Technology -------------- : [Disabled]



    and heres a screenshot with EIST Disabled, sorry bout that.

    Last edited by herbals; 02-20-2010 at 06:14 AM.
    GA-EP45-UD3P rev 1.0 Bios F10e
    Core2 E7400, Revision: R0, Stepping A
    Thermaltake V1 CPU cooler
    G.Skill F2-6400CL5-2GBPI (DD2 800) 2gb x 2 sticks
    Gigabyte 9800GT 512mb
    Coolermaster RC690 Case, Air cooled
    Windows 7 x64 Ultimate Retail

  2. #2
    Chike is offline Senior Member
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    Default Re: Is my OC safe? e7400 UD3P

    Setings looks OK. I'd try to lower MCH Core some.
    The memory is rated 1.8-1.9v but that's up to you.
    Your core temps are very high though, something you may want to look into.

    EDIT: Another thing you may want to try is set Performance Enhance to standard and manually set Static tRead to 8 or 7 if it's possible and see if you get better memory performance.

  3. #3
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    Default Re: Is my OC safe? e7400 UD3P

    Chike, in your sig when you say 78c full load stable, what are you using to stress when your temps top that high?
    GA-EP45-UD3P rev 1.0 Bios F10e
    Core2 E7400, Revision: R0, Stepping A
    Thermaltake V1 CPU cooler
    G.Skill F2-6400CL5-2GBPI (DD2 800) 2gb x 2 sticks
    Gigabyte 9800GT 512mb
    Coolermaster RC690 Case, Air cooled
    Windows 7 x64 Ultimate Retail

  4. #4
    Chike is offline Senior Member
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    Default Re: Is my OC safe? e7400 UD3P

    Themps are for IBT max stress level (1534MB) but when my idle core temps are ~45c, Prime95 blend torture temps are ~67c, both at ~25c ambiant temperature.
    But my processor is M0 stepping, Psycho101 has the same processor as yours and his temperatures are way lower.

    EDIT: corrected ambiant for this OC.

  5. #5
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    Default Re: Is my OC safe? e7400 UD3P

    i just did a short prime blend test my idle temp was 34degrees, and it maxed at 65degrees, thats pretty acceptable isnt it?

    IBT seems to push temps REALLY high.

    thanks for the quick replys.
    GA-EP45-UD3P rev 1.0 Bios F10e
    Core2 E7400, Revision: R0, Stepping A
    Thermaltake V1 CPU cooler
    G.Skill F2-6400CL5-2GBPI (DD2 800) 2gb x 2 sticks
    Gigabyte 9800GT 512mb
    Coolermaster RC690 Case, Air cooled
    Windows 7 x64 Ultimate Retail

  6. #6
    Join Date
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    Default Re: Is my OC safe? e7400 UD3P

    You let IBT hit your CPU for 86 Celsius? That not good bro, I'd personally draw the line at 70C, though 75C for short periods seems to be acceptable.
    G1.Assassin 2 (F11)
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  7. #7
    Chike is offline Senior Member
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    Default Re: Is my OC safe? e7400 UD3P

    Yeah 65c for Prime95 is ok, but you need to let it run for at least 5-10 minutes for it to max (at least the blend torture).
    I ran IBT with temps high as 83c but it is not where I want them to be. At summer I run lower OC (3.6GHz) because of high temperatures.

  8. #8
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Is my OC safe? e7400 UD3P

    What is the room temperature when you're running your stress tests?
    Lower room temps will typically lower your core temps by about the same amount.

    IBT or LinX tests will usually result in 10 degree (C) higher core temperatures compared to Prime95 tests.

    How many case fans are you using with your RC-690 case?

    MCH Core = 1.28 or possibly 1.26 should be stable with your 2x2GB memory.
    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
    .


  9. #9
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    Default Re: Is my OC safe? e7400 UD3P

    Im not sure exactly how hot the room is, but It is aircon'd.
    During a gaming session temps only topped 56degrees.

    Ive manage to lower the following without any problems so far:
    MCH core to 1.280v, CPU Vcore to 1.325v
    ive also change static tRead Value to 8 on both channels
    and set dram performance to extreme.

    Im also looking to overclock my Gigabyte 9800GT, ive installed Gamer HUD. Whats the best way to go about maxing my OC on the card and tests/stability benchmarks involved? Im really happy with 10x400 on the cpu, now its time to push this GPU to the limit.
    Stock speeds are:
    Volts: 1.05v
    GPU clock: 700mhz
    Shader: 1715mhz
    memory: 900mhz

    I have 3 fans in my case,
    intake on the front,
    intake on the leftside (blowing air on the GPU/mobo) I thought about switching this fan around so its an exhaust, wats ur thoughts on this?
    And an exhaust on the back. My cpu cooler fan is blowing air towards the exhaust on the back and the fan is parallel to the one on the back.

    Thanks for the help/replies.

    heres a photo of my cpu cooler, not my case, but you get the idea.
    GA-EP45-UD3P rev 1.0 Bios F10e
    Core2 E7400, Revision: R0, Stepping A
    Thermaltake V1 CPU cooler
    G.Skill F2-6400CL5-2GBPI (DD2 800) 2gb x 2 sticks
    Gigabyte 9800GT 512mb
    Coolermaster RC690 Case, Air cooled
    Windows 7 x64 Ultimate Retail

  10. #10
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Wink Re: Is my OC safe? e7400 UD3P

    Check out Guru3D Downloads for gpu overclocking, testing, benchmarking and demo software.
    I've used ATiTool and EVGA Precision to overclock my 7600GT video card. I haven't tried RivaTuner.
    FurMark is a good tool to stress your gpu.

    Based on your bios settings from post #1, you can probably improve your memory performance by setting:
    System Memory Multiplier -------------- : [2.00B]
    Advanced Timing Control
    tRRD ------------------- 3 ---------- : [3]
    tWTR ------------------- 3 ---------- : [3]
    tWR --------------------- 6 ---------- : [5]
    tRFC ------------------- 52 ---------- : [50] <--- 48 or a bit lower might be stable
    tRTP ------------------- 3 ---------- : [3]
    note: with Performance Enhance = Turbo, the advanced timing settings are pretty well optimized right now (except for tRFC).
    Static tRead Value --------- 9 --------- : [7] <--- for both memory channels

    I have four 140mm 1000 rpm fans in my RC-690 where two are mounted in the top of case and two are mounted on the side panel. I think that the best setup for you is to keep the side case fan blowing into the case and having one or two fans exhausting hot air out of the top of the case. Don't forget that you can also install an additional fan in the bottom of your case. 120mm fans can also be used (without adapters).

    Glad to have helped out.
    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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