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Thread: Q9550 + EP45-UD3P, need help hitting 4 Ghz please




  1. #61
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    You did a nice job with your screen-shot, but you should also include two additional cpuZ windows; the MOTHERBOARD and MEMORY windows. You can run multiple cpuZ windows at the same time.

    It gets confusing with 2 cooks in the kitchen at the same time, but here's my 2 cents:
    • With all the Q9550 setups I've seen, MCH Ref and/or CPU Ref didn't need to be tweaked until cpu speeds approached or exceeded 4.0GHz. In a few cases, these two reference settings near or slightly above 4.0GHz didn't need to be tweaked. Q9550 systems that needed reference volt tweaking usually (possibly always) required reference volt settings to be set higher than the standard 0.760 setting (with VTT first set to 1.20, followed by setting a higher reference volt setting, and then re-setting VTT to the desired value).

    1. With CPU Vcore = 1.3625, your can safely increase VTT (CPU Termination) up to 1.30 volts. VTT should be set to the lowest stable setting. Set VTT = 1.22, test, and increase if necessary. I would manually set MCH Ref and CPU Ref each to 0.760 while testing with higher VTT settings. LSDME can correct me if using AUTO for the reference settings (in this case) would be "better" than the manual 0.760 values.
    2. My preference is to always manually set tRD (Static tRead Value) for both memory channels. With your current 450MHz settings, "10" is safe, and "9" will probably be stable. I assume that you are still using the 2.00D SMM (System Memory Multiplier).
    3. Setting Driving Strength = 1066 for memory channels A & B might help. I usually set Driving Strength one step higher than my memory speed; e.g. with 900MHz memory speed, Driving Strenght = 1066.
    4. Your posted bios settings are not complete. It would greatly benefit others if you filled in all of the settings from the P45 generic bios template. You can copy the template below into Notepad or any plain text editor and fill in your current settings. You can then copy and paste your template from your text editing program into the Reply To Thread window.

    Code:
    Motherboard: Model:  Rev#:  Bios Version:
    Cpu: Model
    Ram: Brand, Model/Part#, Link to your ram's specs
    Power Supply Unit: Brand, Model#, Wattage
    
    Default settings for new setups that are not overclocked.
    
    note: replace all ?? with the value displayed in your bios.
    ----> Replace "Auto" with manually set values.
    
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------- : [Auto] <-- FAST is OK
    CPU Clock Ratio ---------------- : [##]
    Fine CPU Clock Ratio ----------- : [0.0] <-- ignore if not available
    CPU Frequency -------------- : ####
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------- : [Enabled]
    CPU Host Frequency (Mhz) ------- : [Mhz]
    PCI Express Frequency (Mhz) ---- : [Auto] <-- Set to 100, never leave this on Auto
    
    C.I.A.2 ------------------------ : [Disabled]
    
    Advanced Clock Control ------- [Press Enter]
    CPU Clock Drive ---------------- : ??? <-- show the values displayed in your bios for these four settings
    PCI Express Clock Drive -------- : ???
    CPU Clock Skew (ps) ------------ : ???
    MCH Clock Skew (ps) ------------ : ???
    
    DRAM Performance ControlPerformance Enhance ------------- : [Turbo] <-- set to DISABLED when overclocking
    Extreme Memory Profile - (XMP) - : [Disabled] <-- Leave this Disabled
    (G)MCH Frequency Latch --------- : [Auto]
    System Memory Multiplier ------- : [Auto]
    Memory Frequency (Mhz) --------- : [Auto]
    DRAM Timing Selectable --------- : [Auto] <-- set to MANUAL for overclocking
    
    Standard Timing Control
    CAS Latency Time ------- ?? ---- : [Auto]
    tRCD  ------------------ ?? ---- : [Auto]
    tRP -------------------- ?? ---- : [Auto]
    tRAS  ------------------ ?? ---- : [Auto]
    
    Advanced Timing Control
    tRRD  ------------------ ?? ---- : [Auto]
    tWTR  ------------------ ?? ---- : [Auto]
    tWR -------------------- ?? ---- : [Auto]
    tRFC  ------------------ ?? ---- : [Auto]
    tRTP  ------------------ ?? ---- : [Auto]
    Command Rate (CMD) ------------- : [Auto] <-- Auto or 0 is OK
    
    Channel A Timing Settings -- {Press Enter to change settings)
    Static tRead Value ------------- : [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 Timing Settings {Press Enter to change settings)
    Static tRead Value ------------- : [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 A and B Driving Settings ------ {Press Enter to change settings)
    Driving Strenght Profile ------- : [Auto] <-- setting for channel A
    Driving Strenght Profile ------- : [Auto] <-- setting for channel B
    
    Motherboard Voltage Control
    CPU
    Voltage Types--------- Normal ----- Current -----
    Load-Line Calibration ---------- : [Disabled]
    CPU Vcore ----------- 1.????? -- : [Auto] <-- set to the 1.????? value
    
    CPU Termination ----- 1.200V* -- : [Auto] <-- set to the value to the left (Auto over-volts this too much when overclocking) Auto is OK if not overclocking
    CPU PLL ------------- 1.500V* -- : [Auto] <-- set to the value to the left (Auto over-volts this too much when overclocking) Auto is OK if not overclocking
    
    CPU Reference ------- 0.755V* -- : [Auto] <-- Auto Will set this correctly
    CPU Reference2 ------ 0.800V* -- : [Auto] <-- Auto Will set this correctly
    
    MCH/ICH
    MCH Core ------------- 1.100V -- : [Auto] <-- set to 1.20 for 2x2GB ram (1.24 - 1.26, or 1.05 might be needed)
    MCH Reference -------- 0.800V -- : [Auto]
    MCH/DRAM Ref --------- 0.900V -- : [Auto]
    ICH I/O -------------- 1.500V -- : [Auto] <-- set to the value to the left
    ICH Core ------------- 1.100V -- : [Auto] <-- set to the value to the left
    DRAM
    DRAM Voltage --------- 1.800V -- : [Auto] <-- set to the max rated ram voltage (for most memory)
    DRAM Termination ----- 0.900V -- : [Auto]
    Channel A Reference -- 0.900V -- : [Auto]
    Channel B Reference -- 0.900V -- : [Auto]
    
    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  ------------- : [Disabled]
    Virtualization Technology ------ : [Disabled] <-- Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect  ----- : [Enabled] <-- set to Disabled when overclocking (this must be enabled to flash or boot from a USB drive)
    And now a brief word from our sponsor:
    With 4GB, the HyperX T1 1066 memory is almost stable at 890MHz with 4-5-4-12 (TURBO) primary memory timings.
    When it is stable, 8GB is going to be stuffed into the P35-DS3L.
    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
    .


  2. #62
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Jim, thanks a bunch for this much useful information, I'll change the settings according to your recommendations and will post a full screenshot with the additional CPUZ and full BIOS settings after my next testing.

    I am using 2.00D multiplier for my memory and I will try setting tRD to 10 first, after I find stability on 3.6, I'll try 9.

    Few questions:

    1. You stated that with Vcore 1.3625 I can set VTT safely to 1.3, what if I need to increase Vcore? For 3.8 I usually needed 1.38-1.4 Vcore to be stable, how much would I need to raise VTT for every Vcore increase?

    2. CPU/MCH Ref: I understand how to let the system adjust these 2 automatically to 63.33% as you and Chike explained: A. Set VTT to 1.2 B. Set Refs to 0.760 C. Set VTT to desired value and the Refs will automatically change

    Say I raise VTT to 1.3 and I still don't find stability, will I need to touch the Refs? I read the article you sent me and it says that usually, CPU ref should be tweaked a bit higher for stability and MCH a bit lower for stability, which one should I change first, if at all, and by how many increments?

    3. Is it better to use a higher FSB on 8 multiplier or to use a lower FSB with 8.5? 450*8.5 will get me to 3.8 and last I checked it was stable whereas now it's at 3.6, if I can't pass 3.8 to 4.0, I'll settle for it, I just want to find the best setting possible for 3.8 first.

    4. Drive strength, if I move on from 900MHz to 950MHz for 3.8GHz, should I tweak this over 1066 or leave as is?

    When I get home I'll try this again, thanks.
    Last edited by Zach_; 05-05-2011 at 09:51 PM.
    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]

  3. #63
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    1. The recommended VTT guideline is that VTT should be at least 0.05 - 0.10 volts lower than Cpu Vcore. If LLC (LoadLine Calibration) is enabled, LSDME can best advise.
    2. At some point you will probably have to raise MCH Ref. Some claim that they also need to raise CPU Ref. If you increase or decrease either of these settings, follow the procedure you outlined, where you:
      • a) set VTT = 1.20
      • b) set the new MCH or CPU Ref
      • c) re-set VTT to the desired value
      **edit** You might find that using VTT = x.xx is stable at some settings, but it's very close to CPU Vcore. You might be able to lower the required VTT voltage by tweaking MCH Ref. Buried somewhere in either or both of Conner's Q9550 threads is a detailed discussion on lowering some voltages after you have reached your final stable overclock.
    3. I'd stay with the 8.0 X 450MHz setting for now. Most that settle on a 4.0GHz speed end up with CPU Host Frequency = 471 - 475MHz with the 8.5 Cpu Multiplier. You'll probably have the best overall results using the D-memory strap (e.g. 2.00D) at these speeds.
    4. There aren't any hard and fast "rules" for Driving Strength. Some find that AUTO works fine and some find that a slightly higher setting seems to help. With my EP45 (deceased) mobo, using OC-1200 with ~ 1020MHz or higher speeds worked for me.
    **edit** VTT settings might not need to be increased automatically with higher CPU Vcore settings. I 'd like to present some hard and fast "rules" but there aren't any. This is a good example of why they call this tweaking
    Last edited by profJim; 05-05-2011 at 10:40 PM.
    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
    .


  4. #64
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Hey Jim, thanks for your answers.

    A quick word about LLC, I was always told to enable it since it defeats the Vdroop which lowers the voltages, I usually have this on but I never knew it is related to VTT, in cases where I tried to disable LLC at higher speeds I would immediately get a BSOD when using Prime95 or OCCT back then, and I required much higher voltages.

    About the multiplier, still didn't understand, what's better to use for 3.8 for example, 447*8.5 or 475*8?
    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]

  5. #65
    profJim's Avatar
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    I'm not a fan of using LLC, but some claim that the only way their highly overclocked system is stable is to enable LLC.
    AnandTech detailed some of disadvantages of enabling LLC, I'll try to find the review/article that they published showing how and why it hurts cpu voltage regulation. Vdrop and Vdroop are intentionally designed into the hardware, but some mobo brands have less Vdroop than others. An interesting note; with LLC enabled, some have passed extensive Prime95 stress testing (24 hours each using Small FFT, Blend, and Large FFT) only to have their systems BSOD when at idle.

    I pushed my E6550 as far as it would go (494MHz X7.0) and no amount of Ref. volt tweaking with and without LLC would let me go higher.
    My approach is to enable LLC as a last resort, as we are already pushing our systems far beyond the stock settings where we are often exceeding Intel's maximum guidelines.

    Your ram should easily be able to handle 950MHz (2 x 475) so I would use 475MHz for maximum performance. If you were settling on 3.80GHz as a final overclock, you might want to use somewhat lower voltages with the 447 x 8.5 settings. You might be able to use somewhat tighter memory timings at 894MHz (447 x 2) or you could possibly run your memory at 1073MHz (2.40B x 447) with 5-5-5-15 primary memory timings. My soon to be retired 4 GB Mushkin 1066 ram happily ran at 1080 - 1100MHz for extended periods of time. Realistically you won't notice much difference with your ram running at 800MHz with 4-4-4-10/12 timings versus 1066MHz with 5-5-5-15 timings.

    When benchmarking, I've found that if your system speed is XX percent higher, the "real" performance boost is about half of the XX percent value. With our older chips, I prefer higher FSB with somewhat lower memory speeds (if necessary). Keep in mind that I've only personally run with cpu's that run in the lower 20's GFlops range.

    Gotta sign off now, I'll check back later tonight.
    Have run tweaking & testing, more tweaking and more testing.....
    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
    .


  6. #66
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    Wink Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    A brief update while we're waiting for Zach_'s tweaking results:

    Installed the first 2 x 2GB HyperX T1 memory kit in my P35-DS3L and it passed stability testing at 1068MHz with 5-5-5-15 timings.
    Added the second matching HyperX T1 kit for a total of 8GB and with some tweaking and stress testing, the system is stable, running 8GB at 880MHz with 4-5-4-12 timings.

    Final testing will overclock my E6300 (R0) from the current 3.52GHz to 3.70GHz with memory running at 870MHz with 4-4-4-10 timings.
    Note to myself: my cpu has never been stable with speeds over 3.60GHz.

    Back to the "ugly" memory posts:

    Q9550 + EP45-UD3P, need help hitting 4 Ghz please-kingston-hyperx-versus-skill-tt-pi-ddr2-8500-5-5-5-15-256c-jpg

    • G.Skill PI memory looks like a high tech cheeze grater.
    • HyperX T1 looks like a medieval torture device.
    • The 61mm tall HyperX T1 memory is taller and heavier than the PI memory.
    • The HyperX T1 is rated at 2.2 - 2.3 volts compared with the PI's 2.0 - 2.1 volt rating.
    • It's clear that the PI memory is a wimp compared to the HyperX T1.


    FWIW, my Mushkin XP-8500 memory has been discontinued and my first choice for an 8GB set was the high end G.Skill memory. I couldn't justify the $160 price for 8GB of the high end G.Skill memory, especially when Newegg had a killer deal on two 4GB HyperX T1 kits for $146; with free shipping, a 15% discount and a $40 (total) mail in rebate for both kits. The net cost is only $4.10 more than the price of one 4GB G.Skill kit.

    BTW, no fair if you're going to compare your Q9550/EP45 system with my E6300/P35 setup.
    Last edited by profJim; 05-07-2011 at 03:27 PM. Reason: corrected memory price error
    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
    .


  7. #67
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Hehe that last post cracked me up Jim :) Congrats on the memories, btw, I upgraded my CPU cooler to the massive Zalman CNPS10 Xtreme (Credit to Chike for the recommendation):



    I can't wait to see how it performs when stressing the CPU at 3.6 and higher, my OCZ V2 peaked 65C when using IBT and 57-60 when using P95. Let's hope for a decrease of 8-10C off that with this new one, especially with a fan that can go up to 2150 RPM

    I didn't have ANY time to do testings in the past couple of days, however, I did try to disable LLC and go for stability @ 3.6 on Wednesday, I found out that I had to set the Vcore much higher in order to be stable on IBT and P95, for example, if I have LLC enabled, I need a Vcore of 1.375 (1.32-1.33 in CPU-Z) in order to be stable, but with LLC disabled, I need to crank up the Vcore to at least 1.4 in order to get a 1.3 reading in CPU-Z, so I'm really not sure which is better?

    I'll probably meet Chike for an Overclocking session this week, hopefully he will be able to clear up some of these grey areas...
    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
    Chike is offline Senior Member
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    I recommended the extreme? No way! It's noisy just as the performa and the performa is better.
    I'd recommend the performa or the flex, which are about the same performance and can have another fan added (4 clips are included).
    I couldn't get the performa from local stores and had to order from eBay which actually, after currency conversions and visa fee, and shipping, cost less than listed price here.

    I wouldn't expect more than 3-5c drop.

  9. #69
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    I'm an LLC user here, never have any problems, and always suggest it's fine to use.

  10. #70
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Thanks LSD,

    Chike, about the cooler, read the review from Guru3D (It's linked to my Cooler), they tested it with an i5 and on 100% load it peaked at 46C with Prime 95, with my OCZ I reached 55 or so so I expect to be in the 40s when testing with P95 and mid 50s when using IBT, (Page 7 in the review) and they recommended it as a top pick. I know it's a bit hotter in our country than where they probably tested it so I won't expect the temps to be exactly the same, but my case has 4 fans which also can be manually adjusted and I believe it can do really well and shave off at least 6-7C.

    Granted it is noisy when the fan is at 75% and above, however, you have 3 adjustable settings to choose to set the fan to and also a manual control mode which is gold.

    I'm very satisfied with the cooler, temps are great so far and it looks brilliant, installation was a bit of a pain as I've had to remove motherboard to fit the backplate and also had to remove the fan and frame completely from the heatsink in order to bolt it into the board (Damn UD3P heatsinks...), but it was worth it.
    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]

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