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Thread: X48 DQ6 E0 E8500 at 4085Mhz




  1. #1
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    Default X48 DQ6 E0 E8500 at 4085Mhz



    My earlier posting within http://forums.tweaktown.com/f69/giga...92/index8.html has 3.8ghz settings.

    I was able to run far better ram timings at 1066 (2.1V) with the 3.8Ghz overclock, but using the 2.00 D strap, running at 860 (1.8V) the timings so far seem more limited.
    I let it boot with ram settings on Auto, read them with Everest, and then set them manually. Auto had the tRD at 13.

    Before I could run a tRD of 6 but now 9 is as low as I can go. Would a different strap help? 860Mhz no work so good!!
    Last edited by Salty; 08-29-2009 at 07:12 PM.





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  2. #2
    Chike is offline Senior Member
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    You'd probably could have better timings if you left vDIMM on 2.1v, 5-4-4-12/13 with DDR-860 or even better.
    tRD 6 at 400 FSB with DDR-1066 is not common from what I see in the forum, but you may still use 7 or 8 with tighter timings.

  3. #3
    profJim's Avatar
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    Using the "B" strap:
    tRD = 7 is usually stable up to about 420MHz
    tRD = 8 should work up to about 460MHz

    In the lower to mid 400MHz range, using the D-strap usually requires tRD to be 1 step higher (looser) than the B-strap. In the mid to upper 400MHz range, the tables are reversed.

    Some have found that stability is easier to come by using the D-strap instead of the B-strap.
    Q9650 @ 4.10GHz [9x456MHz]
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz



    I shifted to the 2.4B strap for 1032Mhz. Already getting improved timings. I tried both 2.1 and 1.8 on 806, but it would not accept decent timings. I did not try 2.00B strap, but may get round to it.

    I've got the OC bug again now that I've got temps reasonably under control with an Extreme 120 and northbridge fan. Had to try for 4Gig. I'll explore further with the memory. I'll see what it can take.

    So far 3Dmark06 went from 17200 to 17780, but FarCry2 Short Ranch did not improve at all. (3.8 may yet be the performance sweet spot.)

    Update: Getting better memory benchmark at 1032Mhz and tRD of 7 than I did with 1066 and tRD of 6. Previous best was 60ns, 80784 read, 8475 write, and already showing 58.7ns, 8690 read, 9048 write, and have not finished refining settings.
    Last edited by Salty; 08-29-2009 at 08:46 PM.





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  5. #5
    Chike is offline Senior Member
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    Quote Originally Posted by Salty View Post
    So far 3Dmark06 went from 17200 to 17780, but FarCry2 Short Ranch did not improve at all. (3.8 may yet be the performance sweet spot.)
    Seems memory performance are degraded compared to what you had with 3.8GHz so this may be it if this game rely on memory bandwidth. Did it get any worse?

  6. #6
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    No, despite one higher tRD I'm getting better latency, read and write figures in Everest benchmark for 1032. Currently 58.7ns, 8722 write and 9073 read. I'll get that as good as possible and try benchmarks again. Suspect it won't get much better.

    profJim u were right about 7 being the limit now. It's working with 430Mhz fsb. I've been working off the articles in my sig, but they seem overly optimistic about Cas and tRD settings. For me, the 2.40B strap is working much better than the 2.00D strap.



    With the tightened ram timings getting extra frames in FarCry2 small ranch bench max 102 min 49 average 66.3 (very high, otherwise default settings) That's an extra 4-5 fps over the optimised 3.8 settings.

    Will try 3Dmark06. That's up to 18107.

    Sometimes I read on forums advice saying just to overclock the cpu, that wolfdales aren't sensitive to ram timings and there is little to be gained by tweaking the ram. I cannot agree. If my pc is anything to go by, it is worth it. An extra 227 3dmarks and min fps up +5 in FarCry2. (Maybe just D strap versus B tho)

    CPU = Intel E8500 45nm Dual core
    Motherboard = GA-X48-DQ6 Revision C1
    BIOS Version = BIOS: Award F7 07/17/2008
    Ram = 2x2gig Corsair Dominator 8500C5DF-G

    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [9]
    Fine CPU Clock Ratio [+0.5]
    Cpu frequency 4.08 GHz 430x9.5
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [430]
    PCI Express Frequency (Mhz)_______ [102]
    C.I.A. 2____________________[Disabled]

    Performance Enhance = [Standard]
    System Memory Multiplier (SPD) ___ [2.40B]
    Memory frequency 800____________ 1032
    DRAM Timing Selectable_______ SPD __ [Manual]

    CAS Latency Time (tCL) _______________ 5
    Dram RAS# to CAS# Delay (tRCD) ________5
    Dram RAS# Precharge Delay (tRP) _______5
    Precharge Delay (tRAS)_______________ 18

    ACT to ACT Delay (tRRD)_______________ 3
    Rank Write to READ Delay (tWTR) ______ 3 (+8 in memset)
    Write to Precharge Delay (tWTP) ______ 6 (+8 in memset)
    Refresh to ACT Delay (tRFC) _________ 54
    Read to Precharge Delay (tRTP) _______ 3 (+2 in memset)
    Static tRead Value (tRD) _____________ 7
    Static tRead Phase Adjust________ AUTO
    Command rate (CMD) _______ 2T

    Cpu/pciex clock driving control ____800mV
    Cpu clock skew control ____________ NORMAL
    Gmch clock skew control __________ [150ps]

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.3] = 2.1V
    PCI-E OverVoltage Control_ [+0.1V]
    FSB OverVoltage Control___ [+0.1V]
    (G)MCH OverVoltage Control [+0.2V]
    CPU GTRLREF1 Voltage Ratio [Auto]
    CPU GTRLREF2 Voltage Ratio [Normal]
    Loadline calibration ____[Auto]
    CPU Voltage Control_______ [1.350]
    Cpu normal vcore 1.2500V

    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___________________[Disabled] *Note* Must be enabled to flash from USB
    Last edited by Salty; 08-30-2009 at 08:58 PM. Reason: update





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    , BIOS Version = Award FC
    Ram = 3x2gig Corsair TR3X6G1600C8D G
    Video = 2 X Palit GTX460 Sonic Platinum 1GB OC sli
    Monitor = 22" LG Flatron W2242T 1680 x 1050 Case = Coolermaster CM690
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  7. #7
    profJim's Avatar
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    Food for thought:
    Benchmark using 430 x 2.00B (860MHz) with tighter primary memory timings, possibly 4-4-4-12 (or -10).

    tRFC = 48 - 52 (with 4GB of ram) will further improve memory bandwidth.
    With my EP45-UD3P ram at 984MHz (5-5-4-12), my advanced memory timings are stable with:
    ACT to ACT Delay (tRRD)____________ [1]
    Rank Write to READ Delay (tWTR) ____ [3]
    Write to Precharge Delay (tWTP) _____ [3]
    Refresh to ACT Delay (tRFC) ________ [50]
    Read to Precharge Delay (tRTP) ______ [1]

    At 3.444GHz (7x492), my Everest results:
    Memory Read = 9062 MB/s
    Memory Write = 8920 MB/s
    Memory Copy = 9307 MB/s
    Memory Latency = 56.9 ns
    (using 2.00D and tRD = 9)

    Try additional benchmarks with Performance Enhance = Turbo and compare.

    Tweaking Static tRead Phase Adjust might help enhance your tRD setting.
    Check out Anandtech's The Gigabyte GA-X48T-DQ6 - Redefining the High End? (page 12) where they're using DDR3 memory.

    Check out Nickel020's memory benchmark thread, DDR2 800 CL5 vs 1000 CL4 vs 1200 CL5, a comparison,where he compares Everest memory benchmark scores and gaming performance with different memory settings.
    Last edited by profJim; 08-30-2009 at 03:55 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
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    .


  8. #8
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    Well thought I'd try it out, but ....



    When I had difficulty making timings loose enough to boot on either 2.00 B or D, I tried Auto, then read the timings in memset, then set them manually and tried reducing them. Would not boot on reduced timings with either strap. This includes trying 1.8 and 2.1 volts with both - no change. Adopts the same settings for either. Can get tRD down to 9 on D, no better, and any other change causes reboot to base settings.



    My mobo doesn't seem to like it's 2.00 straps at the moment. I have no idea why. It may be the differing brands of our ram. Would Gmch clock skew affect that?
    Last edited by Salty; 08-31-2009 at 06:53 AM.





    CPU
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    Cooling = EK HF Full Nickel
    - XSPC RX360 - Laing DDC 18W - XSPC Bay Reservoir
    Motherboard = GA-X58A-UD3R Revision 2
    , BIOS Version = Award FC
    Ram = 3x2gig Corsair TR3X6G1600C8D G
    Video = 2 X Palit GTX460 Sonic Platinum 1GB OC sli
    Monitor = 22" LG Flatron W2242T 1680 x 1050 Case = Coolermaster CM690
    PSU = Corsair HX850
    OS = Windows 7 Professional x64


  9. #9
    Chike is offline Senior Member
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    IMO your memory performance are good for 430FSB, note that profJim's results are for a considerably higher FSB.

  10. #10
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    Default Re: X48 DQ6 E0 E8500 at 4085Mhz

    Yeah, I'm quite happy with the 430fsb + 1032ram performance, but was interested in what profJim was saying and thought i'd do a compare with 430/860 or what some ppls call 1:1. On my board I got significantly lower benchmark performance too regardless of strap. Not that worried about it, but not what I would have expected. Not stable there either.

    (A tRD of 13 !?! 200 3Dmarks less in 06!)

    I'll keep running asynchronous timings for now.
    Last edited by Salty; 08-31-2009 at 06:57 AM.





    CPU
    =
    i7 950 - DO stepping - Batch #3014A844
    Cooling = EK HF Full Nickel
    - XSPC RX360 - Laing DDC 18W - XSPC Bay Reservoir
    Motherboard = GA-X58A-UD3R Revision 2
    , BIOS Version = Award FC
    Ram = 3x2gig Corsair TR3X6G1600C8D G
    Video = 2 X Palit GTX460 Sonic Platinum 1GB OC sli
    Monitor = 22" LG Flatron W2242T 1680 x 1050 Case = Coolermaster CM690
    PSU = Corsair HX850
    OS = Windows 7 Professional x64


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