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Thread: GA-EP45C-UD3R & E8500 OC help




  1. #1
    Join Date
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    Default GA-EP45C-UD3R & E8500 OC help

    I just bought:

    Intel Core 2 Duo E8500 Wolfdale 3.16GHz 6MB L2 Cache LGA 775 65W Dual-Core Processor (EO revision)

    Zalman 9500 cooler

    GIGABYTE GA-EP45C-UD3R LGA 775 Intel P45

    CORSAIR 2GB (2 x 1GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600)

    XFX GS250XZDFL GeForce GTS 250 Core Edition 1GB 256-bit DDR3 PCI Express 2.0 x16

    Antec 750w Psu

    I read through some faqs and guides on OCing and still can't seem to get the results I want. I'd like to get to 4.0 or higher for everyday stable use with my setup. Can anyone post bios settings that would be the best for me with this CPU and Ram? Thanks for any help.
    Last edited by Cell247; 09-02-2009 at 05:06 AM.

  2. #2
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    It's impossible to post you BIOS settings that will instantly work. All components are different. Two E8500's both cut from the same piece of silicon, right next to each other could behave radically different.

    Post up what you have already done and how stable it is, in the form of a BIOS template. People may be able to suggest how to improve your settings. Asking for settings from scratch seldom works out.

    Also consider aiming for a lower overclock first. Jumping right to 4GHz for someone who isn't at least little experienced is a tall order. Get 3.4GHz first, stable. then try for 3.6-3.8GHz. By now you'll have learned what your config needs in terms of voltages and clock speeds to remain stable at progressing CPU frequencies.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  3. #3
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    Thanks for the suggestions Psycho101. I will post my settings. I used the Easy Tune 6 middle setting default which set my cpu to 3.8ghz. 39c with 0.1% load. I ran Prime95 on Blend for a few hours. No errors and max temp was 61c in Real Temp 3.00 running under Windows 7 64bit. Seems a little warm for only 3.8ghz from what Ive been reading about the E8500 E0s. Not really sure though. Here are the my bios settings as set by Easy Tune 6:


    Motherboard: EP45C-UD3R

    Bios Version: F4

    Cpu: E8500 (EO)

    CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)

    http://www.newegg.com/Product/Produc...82E16820145198

    Power Supply Unit: Antec Earthwatts 750w

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------------- : [Auto]
    CPU Clock Ratio ---------------------- : [9x]
    Fine CPU Clock Ratio ----------------- : [0.0]
    CPU Frequency ---------------------: 3.87 (430x9)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------: [430]
    PCI Express Frequency (Mhz) ---------- : [Auto]

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

    Advanced Clock Control ------- [Press Enter]
    CPU Clock Drive ---------------------- : [700mV]
    PCI Express Clock Drive -------------- : [700mV]
    CPU Clock Skew (ps) ------------------ : [0ps]
    MCH Clock Skew (ps) ------------------ : [0ps]

    DRAM Performance Control
    Performance Enhance ------------------- : [Turbo]
    Extreme Memory Profile --- (X.M.P.) --- : [Auto]
    (G)MCH Frequency Latch ---------------- : [Auto]
    System Memory Multiplier -------------- : [2.40B] <-- this is the setting that you are using
    Memory Frequency (Mhz) ---------------- : 1066 1032
    DRAM Timing Selectable ---------------- : [Auto]

    Standard Timing Control
    CAS Latency Time -------- 7 ---------- : [Auto]
    tRCD ------------------- 7 ---------- : [Auto]
    tRP --------------------- 7 ---------- : [Auto]
    tRAS ------------------- 20 ---------- : [Auto]

    Advanced Timing Control
    tRRD ------------------- 4 ---------- : [Auto]
    tWTR ------------------- 4 ---------- : [Auto]
    tWR --------------------- 8 ---------- : [Auto]
    tRFC ------------------- 60 ---------- : [Auto]
    tRTP ------------------- 4 ---------- : [Auto]
    Command Rate (CMD) ---------- 0 ---------- : [Auto] <--- Auto or 0 is OK

    Driving Strength Profiles
    Driving Strength --------- : Press Enter <- I do not see this option

    Channel A
    Static tRead Value --------------------- : [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

    Channel B
    Static tRead Value --------------------- : [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
    CPU
    Voltage Types------------ Normal -------- Current -----
    Load-Line Calibration ----------------- : [Disabled]
    CPU Vcore --------------- 1.25000V ---- : [Auto]

    CPU Termination --------- 1.200V ----- : [Auto]
    CPU PLL ----------------- 1.500V ----- : [Auto]

    CPU Reference ----------- 0.760V ----- : [Auto]
    CPU Reference2 ---------- Dont see this ----- : [Auto]

    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [Auto]
    MCH Reference ----------- 0.760V ------- : [Auto]
    MCH/DRAM Ref ------------ 0.750V ------ : [Auto]
    ICH I/O ----------------- 1.500V ------- : [Auto]
    ICH Core ---------------- 1.100V ------- : [Auto]
    DRAM
    DRAM Voltage ------------ 1.500V ------- : [Auto]
    DRAM Termination -------- 0.750V ------- : [Auto]
    Channel A Reference ----- 0.750V ------- : [Auto]
    Channel B Reference ----- 0.750V ------- : [Auto]

    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 -------------- : [Disabled]

    Integrated Peripherals
    Legacy USB Storage Detect ------------- : [Disabled]
    Last edited by Cell247; 09-02-2009 at 07:45 AM. Reason: Posted Wrong Ram

  4. #4
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    Some of the settings you have shown lead me to believe that you're currently running using failsafe defaults. This can happen if using the board from brand new or if you've flashed the BIOS and forgotten to load Optimized Defaults, then save and exit before customising settings.

    To verify if failsafe values are being used, double check your CPU and PCIE clock drive settings. If they are both at 700mV then you need to load optimized defaults. Don't change these settings manually, as loading optimized defaults alters all kinds of BIOS values including those that are hidden from the users view.

    Although not an awful heatsink, the 9500 is around 4-5 years old. Heatsink design has come a long way since then. 61c is actually cooler than I'd expect for that particular HSF.

    I'd suggest starting with these values after loading optimized defaults:

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------------- : [Auto]
    CPU Clock Ratio ---------------------- : [9x]
    Fine CPU Clock Ratio ----------------- : [0.0] 
    CPU Frequency ---------------------: 3.87 (430x9)
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------: [430]
    PCI Express Frequency (Mhz) ---------- : [100] 
    
    C.I.A.2 ------------------------------ : [Disabled]
    
    Advanced Clock Control ------- [Press Enter]
    CPU Clock Drive ---------------------- : [800mV] Don't alter these to 800/900, 
    they should be at that by default.
    PCI Express Clock Drive -------------- : [900mV]
    CPU Clock Skew (ps) ------------------ : [0ps]
    MCH Clock Skew (ps) ------------------ : [0ps]
    
    DRAM Performance Control
    Performance Enhance ------------------- : [Standard]
    Extreme Memory Profile --- (X.M.P.) --- : [Disabled]
    (G)MCH Frequency Latch ---------------- : [Auto]
    System Memory Multiplier -------------- : [2.00D] Try 2.00B if unable to boot.
    Memory Frequency (Mhz) ---------------- : 860
    DRAM Timing Selectable ---------------- : [Manual]
    
    Standard Timing Control
    CAS Latency Time -------- 7 ---------- : [5]
    tRCD ------------------- 7 ---------- : [5]
    tRP --------------------- 7 ---------- : [5]
    tRAS ------------------- 20 ---------- : [18]
    
    Advanced Timing Control
    tRRD ------------------- 4 ---------- : [4]
    tWTR ------------------- 4 ---------- : [4]
    tWR --------------------- 8 ---------- : [8]
    tRFC ------------------- 60 ---------- : [68]
    tRTP ------------------- 4 ---------- : [4]
    Command Rate (CMD) ---------- 0 ---------- : [2] 
    
    Channel A
    Static tRead Value --------------------- : [9]
    
    Channel B
    Static tRead Value --------------------- : [9]
    
    Motherboard Voltage Control
    CPU
    Voltage Types------------ Normal -------- Current -----
    Load-Line Calibration ----------------- : [Disabled]
    CPU Vcore --------------- 1.25000V ---- : [1.3V-1.35V] NEVER use auto if OCing!
    
    CPU Termination --------- 1.200V ----- : [1.200V-1.4V] Use the least possible to be stable
    NEVER use auto when OCing!
    CPU PLL ----------------- 1.500V ----- : [1.57V-1.61V] NEVER use auto if OCing
    
    CPU Reference ----------- 0.760V ----- : [Auto]
    
    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.2V-1.26V] NEVER use auto when OCing!
    MCH Reference ----------- 0.760V ------- : [Auto]
    MCH/DRAM Ref ------------ 0.750V ------ : [Auto]
    ICH I/O ----------------- 1.500V ------- : [1.500V]
    ICH Core ---------------- 1.100V ------- : [Auto]
    DRAM
    DRAM Voltage ------------ 1.500V ------- : [1.9V]
    DRAM Termination -------- 0.750V ------- : [Auto]
    Channel A Reference ----- 0.750V ------- : [Auto]
    Channel B Reference ----- 0.750V ------- : [Auto]
    
    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 -------------- : [Disabled]
    
    Integrated Peripherals
    Legacy USB Storage Detect ------------- : [Disabled]
    If you have set EasyTune to apply any overclock at startup, disable this before proceeding.

    I'm not sure why, but in the profile you have written RAM settings for DDR-1066 (PC2-8500) modules. I am assuming you are indeed using the modules you linked to, which are rated to DDR-800.

    Be aware that as you are running more than a 400MHz FSB, your RAM is being over clocked. This is probably one of the sources of your instability. I've used the same modules, though a different version as they were rated to 1.8V, quite successfully at DDR-920. To get there I had to use 2.1V though. You may want to grab a set of DDR-1066 RAM to make things easier, especially if you intend to go for 4GHz +. I'd recommend against getting DDR3 personally, as I find it can be a right pain in the arse on a P45 board.

    You'll have to find your own values for Vcore and CPU Termination. I've listed likely ranges at the side, but every component is different. I'd say around 1.3-1.35V Vcore and maybe up to 1.34V CPU termination for 3.8GHz. Get that speed stable first, then try for 4GHz next. To test stability, run Prime95 Blend over night for at least 8 hours. If there are no errors reportted, it's time to move up in clock speed.

    Remember that you're in the not so ideal position of not knowing if it's the CPU and voltages letting you down or your RAM runing out of steam as it's already in an over clocked state. RAM tends to not have as much head room for overclocking (as a % of stock frequenct) than say, a CPU.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  5. #5
    Chike is offline Senior Member
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    If BIOS has the XMP option, could you post a screen capture of MemSet or CPU-Z SPD window?

  6. #6
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    Psycho: I havent had any errors or instability. Just hot temps it seemed to me running at 4.0 or higher. Thanks for your input. I just built this box so it does have the failsafe settings. Ill change and try out your setting recomendations. Ill post back.

    Chike: I do not have Xtreme Memory Profile in my bios. Here is a screen shot CPU-Z SPD window.

    Last edited by Cell247; 09-02-2009 at 07:11 AM.

  7. #7
    Chike is offline Senior Member
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    You caused a bit of confusion with the DDR-800 linkk in the settings.
    Do not set 1.9v DRAM Voltage.
    And it seems you have 4GB of ram and not 2, if you have 2 DIMMs.

  8. #8
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    I feel very stupid. Ive been very busy at work while Im tryng to test this computer and post here. I posted the wrong ram. Ive fixed it in my post with the settings. I do indeed have:

    CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)


    Sorry for any confusion. Ive been running with 1.9v setting. =\ Is this bad?

    Psycho:
    I used Easy Tune 6 and turned off my overclock. Set optimal defaults and used your settings, using the lowest settings when you put a range to try. Posted first try and funning at 3869.9mhz and max temp is 57c but mainly stays at 54c during Blend in Prime95 so far. Seems to be working great and cooler. Thanks. So how should I bump things next?
    Last edited by Cell247; 09-02-2009 at 08:00 AM.

  9. #9
    Chike is offline Senior Member
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    The 1.9v was meant for DDR2 which standard voltage is 1.8v, DDR3 standard is 1.5v and your modules are rated DDR-1333 with 1.6v, you should not need more than 1.6-1.65v.

  10. #10
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    Default Re: GA-EP45C-UD3R & E8500 OC help

    I thought this ram was rated at .7v.

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