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Thread: DFI LP UT X58-T3EH8 - First bench, bios screens etc

  1. #326
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    hehe, this is not stable, but I love the RAM running at this speed:
    DFI UT x58/i7 940
    TRUE Black + 2 Scythe s-flex PushPull
    Dominator GT 3x2Gb 2000 CL8 @ 1600 CL6
    XFX GTX280 XXX
    Velociraptor 150 Raid0 - Seagate 500 Raid1
    Corsair Hx1000
    Lian-Li PC-A77 Mod
    **Sorry by my Spanglish**

  2. #327
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    I started with the BIOS settings found at this link:

    http://i4memory.com/f80/dfi-lp-ut-x5...emplate-12919/

    The following are some changes and my voltage setting.

    ------------------
    Genie BIOS Setting

    CPU VID Control: 1.375v
    Vcore Droop Control: Enabled
    DRAM Bus Voltage: 1.695v
    CPU VTT Voltage: 1.39v
    CPU PLL Voltage: 1.80v
    IOH/ICH 1.1V Voltage: 1.11v
    IOH Analog Voltage: 1.10v
    ICH 1.5 Voltage: 1.5v
    ICH 1.05V Voltage: 1.05v

    Turbo Mode Function: Disabled
    CPU Non-Turbo Clock Ratio: 20x

    * BCLK/UCLK/QPI Controller Settings *
    QPI Frequency: 4.8GT/s
    CPU Base Clock (BCLK): 172 Mhz
    DRAM Frequency: 1376Mhz = 8x DRAM multiplier
    UnCore Frequency: 2752 = 2x DRAM Frequency
    These setting work up to a BCLK of 172 but using 173 causes the system to shutdown and then will not boot until I do a Reset/Power Off to reset the CMOS.

    A BCLK of 172 will work with a lower vcore setting but I've gone up to 1.45v with 173. I was using a lower DRAM and VTT voltage for 172 and raised it to the above values for 173 but that didn't help. I'm just about ready to give up on this i7 920 and try something else. Any suggestions before I throw in the towel?
    | Intel Core i7-2600K | ASRock P67 EXTREME4 GEN3 | G.SKILL Sniper Series 8GB (2 x 4GB) DDR3 1866 | EVGA GTS 450 |
    | Swiftech APOGEE Drive II CPU Waterblock with Integrated Pump | XSPC RX360 | Swiftech MCP655-B Pump | XSPC Dual 5.25in. Bay Reservoir |
    | Thermaltake 850W PSU | NZXT SWITCH 810 | Windows 7 64-bit |

    [SIGPIC][/SIGPIC]

  3. #328
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    Quote Originally Posted by vega22 View Post
    With a very bad batch (3838A), i prefer to use low voltage and resigned to 3.8Ghz. My RAM is 7-7-7-24 1.65v stock, but i need to climb to 1.71v in Bios, i suppose that because of the needs of the Uncore.
    not bad 3.8ghz 1.232-1.264v is also my 24/7 comfy clocks

    Quote Originally Posted by msgclb View Post
    I started with the BIOS settings found at this link:

    http://i4memory.com/f80/dfi-lp-ut-x5...emplate-12919/

    The following are some changes and my voltage setting.



    These setting work up to a BCLK of 172 but using 173 causes the system to shutdown and then will not boot until I do a Reset/Power Off to reset the CMOS.

    A BCLK of 172 will work with a lower vcore setting but I've gone up to 1.45v with 173. I was using a lower DRAM and VTT voltage for 172 and raised it to the above values for 173 but that didn't help. I'm just about ready to give up on this i7 920 and try something else. Any suggestions before I throw in the towel?
    hmmm maybe i incorrected worded my bios template thread - it's NOT meant to be recommended settings to try, but a template for users to replace my values with your own values for sharing your settings on forums

    what's your full bios settings - list them here


    As to my mismatched testing some CAS7

    6x1GB 7-7-7-18 1T

    Seems this mismatched combo does pretty well tightening both main and subtimings managing up to DDR3-1718Mhz 7-7-7-18 1T at 1.875v bios. Needed a notch or two higher vdimm when subtimings were tightened otherwise I could of lowered vdimm by ~0.25-0.30v.

    System specs
    • Intel Core i7 920 3836A756
    • Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120x38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
    • DFI LP UT X58-T3EH8 R.A51 - 01/23 beta bios
    • 128MB Gainward FX5200 PCI
    • Ram cooling: 3x 60x25mm Sunon 23.5cfm Maglev fans
    • 80GB Hitachi 7K80 SATAII
    • Pioneer DVD-RW
    • 1KW Corsair HX1000 psu
    • WinXP Pro SP3 full nLite updated hotfixes / Windows 7 beta dual boot


    Memory configuration:


    Super Pi 32M stable
    • DDR3-1606Mhz 7-7-7-18 1T 1.740v bios (1.745v DMM)
    • DDR3-1702Mhz 7-7-7-18 1T 1.830v bios (1.835v DMM)
    • DDR3-1718Mhz 7-7-7-18 1T 1.875v bios (1.880v DMM)


    DDR3-1606Mhz 7-7-7-18 1T 1.740v bios (1.745v DMM)




    DDR3-1702Mhz 7-7-7-18 1T 1.830v bios (1.835v DMM)




    DDR3-1718Mhz 7-7-7-18 1T 1.875v bios (1.880v DMM)








    ---

  4. #329
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    Need some help oc'ing please :>
    Specs:
    i7 920
    DFI ut x58
    OCZ Reaper HPC 9-9-9-28 1T 6gb
    evga gtx285 ssc
    hdd wd750gb x2
    PSU 850W
    TRUE120 Lapped
    Bios:
    All default except BCLK 170 & vcore 1.25v. Dram 1.65v





    Last edited by rusty; 01-30-2009 at 02:54 AM.

  5. #330
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    Quote Originally Posted by eva2000 View Post
    hmmm maybe i incorrected worded my bios template thread - it's NOT meant to be recommended settings to try, but a template for users to replace my values with your own values for sharing your settings on forums

    what's your full bios settings - list them here
    I didn't take them as recommended. I just failed to use my full bios settings.

    The following BIOS settings are stable but when I increase BCLK to 173 the system will not boot. I've tried a vcore up to 1.45v.

    When I had this 920 in my P6T I got up to 4074 MHz with Turbo on (21x194) although not stable. I also had Prime95 stable for 30 min @ 20x195 (3900 MHz) but I stopped it because it was hot.

    Bios settings used with 0114 and i7 920:

    Code:
    Genie BIOS Setting
    
    CPU Feature
    Set VR Current Limit Max: Disabled
    Thermal Management Control: Disabled
    EIST Function: Disabled
    CxE Function: Disabled
    Execute Disable Bit: Disabled
    Virtualization Technology: Disabled
    
    ***** Logical Processor Setting *****
    Intel HT Technology: Enabled
    Active Processor Cores: All
    
    DRAM Timing
    Memory Control Setting: AUTO
    Channel Interleave Setting: AUTO
    Rank Interleave Setting: AUTO
    Memory LowGap: 1536M
    
    DRAM Command Rate: 1N
    CAS Latency Time (tCL): 9
    RAS# to CAS# Delay (tRCD): 9
    RAS# Precharge (tRP): 9
    Precharge Delay (tRAS): 24
    REF to ACT Delay (tRFC): AUTO
    Write to PRE Delay (tWR): AUTO
    Rank Write to Read (tWTR): AUTO
    ACT to ACT Delay (tRRD): AUTO
    Row Cycle Time (tRC): AUTO
    Read CAS# Precharge (tRTP): AUTO
    Four ACT WIN Time (tFAW): AUTO
    
    Voltage Setting
    O.C. Shut Down Free: Enable O.C.S.D.F
    CPU VID Control: 1.375v
    CPU VID Special Add Limit: Enabled
    CPU VID Special Add: Auto
    Vcore Droop Control: Enabled
    DRAM Bus Voltage: 1.695v
    DRAM PWM Switch Frequency: Nominal Frequency
    DRAM PWM Phase Control: 2 Phase Operation
    CPU VTT Special Add: AUTO
    CPU VTT Voltage: 1.39v
    VTT PWM Switch Frequency: Nominal Frequency
    VTT PWM Phase Control: 2 Phase Operation
    
    CPU PLL Voltage: 1.80v
    IOH/ICH 1.1V Voltage: 1.11v
    IOH Analog Voltage: 1.10v
    ICH 1.5 Voltage: 1.5v
    ICH 1.05V Voltage: 1.05v
    DIMM 1/2 DQ/DQSTB Bus VREF: -00.0%
    DIMM 3/4 DQ/DQSTB Bus VREF: -00.0%
    DIMM 5/6 DQ/DQSTB Bus VREF: -00.0%
    ADDR/CMD VREF Control: Disabled
    x DIMM 1/2 ADDR/CMD Bus VREF: 110
    x DIMM 3/4 ADDR/CMD Bus VREF: 110
    x DIMM 5/6 ADDR/CMD Bus VREF: 110
    CPU QPI Drive Strength: Normal
    IOH QPI Drive Strength: Normal
    
    Exit Setup Shut down: Mode 2
    O.C. Fail Retry Counter: Enabled
    O.C. Fail CMOS Reload: Disabled
    
    PPM Function: Enabled
    Turbo Mode Function: Disabled
    x 1 core Max Turbo Ratio: 22x
    x 2 core Max Turbo Ratio: 21x
    x 3 core Max Turbo Ratio: 21x
    x 4 core Max Turbo Ratio: 21x
    CPU Non-Turbo Clock Ratio: 20x
    
    * BCLK/UCLK/QPI Controller Settings *
    QPI Control Settings: Enabled
    QPI Link Fast Mode: Enabled
    QPI Frequency: 4.8GT/s (BCLK * 18 * 2)
    CPU Base Clock (BCLK): 172 Mhz
    Boot Up CPU Base Clock: AUTO
    PCIE Clock: 100 Mhz
    DRAM Frequency: BCLK x 08 (1376MHz)
    UnCore Frequency: BCLK x 16 (2752MHz -> 2x DRAM Frequency)
    
    CPU Spread Spectrum: Disabled
    PCIE Spread Spectrum: Disabled
    BIOS Voltage Readings

    CPU Core Voltage: 1.36v
    DRAM Bus Voltage: 1.66v
    IOH Core Voltage: 1.08v
    CPU VTT Voltage: 1.32v
    Smart Guardian Readings

    CPU Voltage: 1.36v
    FSB VTT Voltage: 1.32v
    NB Core Voltage: 1.08v
    VDIMM Voltage: 1.66v
    | Intel Core i7-2600K | ASRock P67 EXTREME4 GEN3 | G.SKILL Sniper Series 8GB (2 x 4GB) DDR3 1866 | EVGA GTS 450 |
    | Swiftech APOGEE Drive II CPU Waterblock with Integrated Pump | XSPC RX360 | Swiftech MCP655-B Pump | XSPC Dual 5.25in. Bay Reservoir |
    | Thermaltake 850W PSU | NZXT SWITCH 810 | Windows 7 64-bit |

    [SIGPIC][/SIGPIC]

  6. #331
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    Quote Originally Posted by msgclb View Post
    I didn't take them as recommended. I just failed to use my full bios settings.

    The following BIOS settings are stable but when I increase BCLK to 173 the system will not boot. I've tried a vcore up to 1.45v.

    When I had this 920 in my P6T I got up to 4074 MHz with Turbo on (21x194) although not stable. I also had Prime95 stable for 30 min @ 20x195 (3900 MHz) but I stopped it because it was hot.

    Bios settings used with 0114 and i7 920:

    Code:
    Genie BIOS Setting
    
    CPU Feature
    Set VR Current Limit Max: Disabled
    Thermal Management Control: Disabled
    EIST Function: Disabled
    CxE Function: Disabled
    Execute Disable Bit: Disabled
    Virtualization Technology: Disabled
    
    ***** Logical Processor Setting *****
    Intel HT Technology: Enabled
    Active Processor Cores: All
    
    DRAM Timing
    Memory Control Setting: AUTO
    Channel Interleave Setting: AUTO
    Rank Interleave Setting: AUTO
    Memory LowGap: 1536M
    
    DRAM Command Rate: 1N
    CAS Latency Time (tCL): 9
    RAS# to CAS# Delay (tRCD): 9
    RAS# Precharge (tRP): 9
    Precharge Delay (tRAS): 24
    REF to ACT Delay (tRFC): AUTO
    Write to PRE Delay (tWR): AUTO
    Rank Write to Read (tWTR): AUTO
    ACT to ACT Delay (tRRD): AUTO
    Row Cycle Time (tRC): AUTO
    Read CAS# Precharge (tRTP): AUTO
    Four ACT WIN Time (tFAW): AUTO
    
    Voltage Setting
    O.C. Shut Down Free: Enable O.C.S.D.F
    CPU VID Control: 1.375v
    CPU VID Special Add Limit: Enabled
    CPU VID Special Add: Auto
    Vcore Droop Control: Enabled
    DRAM Bus Voltage: 1.695v
    DRAM PWM Switch Frequency: Nominal Frequency
    DRAM PWM Phase Control: 2 Phase Operation
    CPU VTT Special Add: AUTO
    CPU VTT Voltage: 1.39v
    VTT PWM Switch Frequency: Nominal Frequency
    VTT PWM Phase Control: 2 Phase Operation
    
    CPU PLL Voltage: 1.80v
    IOH/ICH 1.1V Voltage: 1.11v
    IOH Analog Voltage: 1.10v
    ICH 1.5 Voltage: 1.5v
    ICH 1.05V Voltage: 1.05v
    DIMM 1/2 DQ/DQSTB Bus VREF: -00.0%
    DIMM 3/4 DQ/DQSTB Bus VREF: -00.0%
    DIMM 5/6 DQ/DQSTB Bus VREF: -00.0%
    ADDR/CMD VREF Control: Disabled
    x DIMM 1/2 ADDR/CMD Bus VREF: 110
    x DIMM 3/4 ADDR/CMD Bus VREF: 110
    x DIMM 5/6 ADDR/CMD Bus VREF: 110
    CPU QPI Drive Strength: Normal
    IOH QPI Drive Strength: Normal
    
    Exit Setup Shut down: Mode 2
    O.C. Fail Retry Counter: Enabled
    O.C. Fail CMOS Reload: Disabled
    
    PPM Function: Enabled
    Turbo Mode Function: Disabled
    x 1 core Max Turbo Ratio: 22x
    x 2 core Max Turbo Ratio: 21x
    x 3 core Max Turbo Ratio: 21x
    x 4 core Max Turbo Ratio: 21x
    CPU Non-Turbo Clock Ratio: 20x
    
    * BCLK/UCLK/QPI Controller Settings *
    QPI Control Settings: Enabled
    QPI Link Fast Mode: Enabled
    QPI Frequency: 4.8GT/s (BCLK * 18 * 2)
    CPU Base Clock (BCLK): 172 Mhz
    Boot Up CPU Base Clock: AUTO
    PCIE Clock: 100 Mhz
    DRAM Frequency: BCLK x 08 (1376MHz)
    UnCore Frequency: BCLK x 16 (2752MHz -> 2x DRAM Frequency)
    
    CPU Spread Spectrum: Disabled
    PCIE Spread Spectrum: Disabled
    When it doesn't boot what postled code ?


    play with PWM switch frequencies as well some memory like reduce 15% over nominal

    and play with modules in different order for same dimm slots

    also play with subtimings too

    DRAM memory tips #1, #2 and #3 http://i4memory.com/102537-post3.html

    Also have you tried bclk values other than 173 ? i.e. 174 or higher ?

    I'm using 1/23 pre-beta bios and first time i came across this little bug i was testing 6x1GB mixed tri channel and 7-7-7-18 1t and slowly bumping bclk on 8x mem multi. Was fine from starting bclk of 150 up to 166. Then set 167 got postled 75 on bios exit/boot up and blank screen. Then tried bclk from 168 to 216 and had no probs with 6x1GB @859mhz 7-7-7-18 1T http://i4memory.com/f83/6x1gb-corsai...rclocks-14112/ heh
    ---

  7. #332
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    Hi Eva can you help me with oc my cpu please? I can't pass 3.4ghz even if I try to raise the vcore. I know I miss something here.
    Last edited by rusty; 01-30-2009 at 09:11 PM.

  8. #333
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    Quote Originally Posted by rusty View Post
    Hi Eva can you help me with oc my cpu please? I can't pass 3.4ghz even if I try to raise the vcore. I know I miss something here.
    bit general there... elaborate as to what happens past 3.4ghz, huge diff between can't boot at >3.4ghz vs fail prime95 immediately vs getting bsods/reboots vs failing prime95 after 7 day straight run heh

    you need to give us something to work with - aims/oc'ing objectives, system specs, cooling and ram used as what settings you've tried as per template here http://i4memory.com/f80/dfi-lp-ut-x5...emplate-12919/

    Show us what you have tried and what did and didn't work for you. I still follow the same process i outlined at http://i4memory.com/f55/announcement...y-eva2000.html with every new system including i7/x58. Isolate and test each part of the system i.e. start with memory then cpu then the rest.

    So in your case (and anyone else reading):

    1. Find the limits of your memory before you find limits of your cpu/bclk.
    2. Find out what your memory can do on each mem multiplier/cpu multi combination.
    3. Find out what voltages your memory likes and what's the optimal voltage difference between vdimm and uncore (cpu vtt) for your particular ram/setup
    4. Find out whether the ram likes pwm switch frequencies of reduce 15% or nominal.
    5. Find out which of your modules likes which dimm slot 2 or 4 or 6.
    6. Found out what auto subtimings translate to in cpu tweaker or memset at each mem frequency/timing combination.
    stuff in bold could be more relevant for your situation

    Basically get to know how your ram behaves on the motherboard with your particular i7 cpu before looking into the cpu side. Sure, there's a wide variance between i7 cpu memory controllers but I'm wondering how much of this variance is due to differences in how particular cpu memory controller interacts with different types of memory modules - down to their PCB/trace design ? Or just bios updates i.e. my Samsung HCF0 based G.Skill PC3-12800HZ didn't do too well with 12/18 and 12/31 bios and that effected cpu stability and what voltages I needed to use. Come 1/06 beta and 1/23 pre beta, HCF0 modules now shine and keep up with Corsair DDR3-2133 Dominator HCF0 and cpu clocking much easier.

    Trust me when I say figuring out ram side will make overclocking the cpu much easier
    ---

  9. #334
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    thanks a lot Eva. by the way how do you get 1:1 ratio ? my goal is 3.8ghz if lucky 4.0ghz more than enough.
    P.S. can somebody tell what are these switches for (circled in red)

    Last edited by rusty; 01-31-2009 at 12:47 AM.

  10. #335
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    so such thing as 1:1 lowest mem multi is 6x so 133bclk 6x mem = DDR3-800Mhz speeds
    ---

  11. #336
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    Quote Originally Posted by eva2000 View Post
    so such thing as 1:1 lowest mem multi is 6x so 133bclk 6x mem = DDR3-800Mhz speeds
    I see. Do you know what are these switches for in "red cirlce"

  12. #337
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    Quote Originally Posted by rusty View Post
    I see. Do you know what are these switches for in "red cirlce"
    beats me LOL
    ---

  13. #338
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    Quote Originally Posted by eva2000 View Post
    beats me LOL
    o

  14. #339
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    = no idea
    ---

  15. #340
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    Quote Originally Posted by eva2000 View Post
    = no idea
    I wonder if this could be similar to p5q deluxe options.

  16. #341
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    doubt DFI needs a voltage override jumper seeing as VCORE available in bios is 1.6 + 14.8% = >1.83v
    ---

  17. #342
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    one more question :> when I set cpu vtt voltage to 1.26v I get 1.21v in Everest & Smart Guardian. Vdroop is enabled. Eva I've read your tips but it seems to be a big gap in volts.

  18. #343
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    use multimeter to measure real voltage values so you can adjust accordingly

    ---

  19. #344
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    Quote Originally Posted by eva2000 View Post
    doubt DFI needs a voltage override jumper seeing as VCORE available in bios is 1.6 + 14.8% = >1.83v
    Actually it's 1,6 * 1,3... disable special add limit
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  20. #345
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    Quote Originally Posted by eva2000 View Post
    When it doesn't boot what postled code ?
    I usually get one of two codes: 75 or 88. When it's 88 I can't use the reset/power buttons to reset the CMOS. I have to turn power off at the PSU. Sometimes this takes a couple of times before it boots again. If it is 75 then I can reboot using the reset/power switches.

    play with PWM switch frequencies as well some memory like reduce 15% over nominal
    This didn't make any difference as far as I can tell.

    and play with modules in different order for same dimm slots
    Didn't help.

    also play with subtimings too
    See below.

    DRAM memory tips #1, #2 and #3 http://i4memory.com/102537-post3.html
    Thanks.

    Also have you tried bclk values other than 173 ? i.e. 174 or higher ?
    Yes. 174, 175, 180, 190 and others that I've forgotten.

    I'm using 1/23 pre-beta bios and first time i came across this little bug i was testing 6x1GB mixed tri channel and 7-7-7-18 1t and slowly bumping bclk on 8x mem multi. Was fine from starting bclk of 150 up to 166. Then set 167 got postled 75 on bios exit/boot up and blank screen. Then tried bclk from 168 to 216 and had no probs with 6x1GB @859mhz 7-7-7-18 1T http://i4memory.com/f83/6x1gb-corsai...rclocks-14112/ heh
    I flashed to the 1/23 pre-beta bios. I then kinda through in the towel. I've swapped memory. I'm now using my dual channel Corsair DDR3-2133 so I'm going to start over with this memory.

    So in your case (and anyone else reading):

    1. Find the limits of your memory before you find limits of your cpu/bclk.
    2. Find out what your memory can do on each mem multiplier/cpu multi combination.
    3. Find out what voltages your memory likes and what's the optimal voltage difference between vdimm and uncore (cpu vtt) for your particular ram/setup
    4. Find out whether the ram likes pwm switch frequencies of reduce 15% or nominal.
    5. Find out which of your modules likes which dimm slot 2 or 4 or 6.
    6. Found out what auto subtimings translate to in cpu tweaker or memset at each mem frequency/timing combination.

    Trust me when I say figuring out ram side will make overclocking the cpu much easier
    I was doing something close to this but it's nice to be reminded.

    Here's the DRAM timing listed in the BIOS. Which of the subtimings to you set?

    DRAM Timing | CPU-Tweaker (Yes/No)
    ------------------------------------
    DRAM Command Rate: 1N | Yes
    CAS Latency Time (tCL): 9 | Yes
    RAS# to CAS# Delay (tRCD): 9 | Yes
    RAS# Precharge (tRP): 9 | Yes
    Precharge Delay (tRAS): 24 | Yes
    REF to ACT Delay (tRFC): AUTO | Yes
    Write to PRE Delay (tWR): AUTO | Yes
    Rank Write to Read (tWTR): AUTO | > Tip #3: Write to Read (Same Rank)
    ACT to ACT Delay (tRRD): AUTO | Yes
    Row Cycle Time (tRC): AUTO | No ?
    Read CAS# Precharge (tRTP): AUTO | Yes
    Four ACT WIN Time (tFAW): AUTO | No ?
    | Intel Core i7-2600K | ASRock P67 EXTREME4 GEN3 | G.SKILL Sniper Series 8GB (2 x 4GB) DDR3 1866 | EVGA GTS 450 |
    | Swiftech APOGEE Drive II CPU Waterblock with Integrated Pump | XSPC RX360 | Swiftech MCP655-B Pump | XSPC Dual 5.25in. Bay Reservoir |
    | Thermaltake 850W PSU | NZXT SWITCH 810 | Windows 7 64-bit |

    [SIGPIC][/SIGPIC]

  21. #346
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    Quote Originally Posted by jcool View Post
    Actually it's 1,6 * 1,3... disable special add limit
    ya right there

    Quote Originally Posted by msgclb View Post
    I usually get one of two codes: 75 or 88. When it's 88 I can't use the reset/power buttons to reset the CMOS. I have to turn power off at the PSU. Sometimes this takes a couple of times before it boots again. If it is 75 then I can reboot using the reset/power switches.


    This didn't make any difference as far as I can tell.


    Didn't help.


    See below.


    Thanks.


    Yes. 174, 175, 180, 190 and others that I've forgotten.



    I flashed to the 1/23 pre-beta bios. I then kinda through in the towel. I've swapped memory. I'm now using my dual channel Corsair DDR3-2133 so I'm going to start over with this memory.



    I was doing something close to this but it's nice to be reminded.

    Here's the DRAM timing listed in the BIOS. Which of the subtimings to you set?
    75 i get when vdimm and cpu vtt ain't enough for clocks set, 88 yeah means switch of psu and then hold home key while hitting power to revert to default bclk

    loosen everything up and work back to tighter timings as you test

    so

    REF to ACT Delay (tRFC): 88 and higher

    Write to PRE Delay (tWR): AUTO | Yes
    Rank Write to Read (tWTR): try values between 20 to 28
    ACT to ACT Delay (tRRD): 6 or higher
    Row Cycle Time (tRC): AUTO | 31
    Read CAS# Precharge (tRTP): 6 or higher
    Four ACT WIN Time (tFAW): 31
    More results from me

    Max 6x1GB 8-8-8-24 1T Clocks

    Changing to 10x memory multiplier, tried to find max 6x1GB 8-8-8-24 1T clocks and ended up with DDR3-2000Mhz 8-8-8-24 1T at 2.04v bios (2.045v real) only for tried 1M Super Pi as 32M Pi test failed. I dropped bclk and mem clocks to DDR3-1960Mhz 8-8-8-24 1T at same vdimm but Super Pi 32M failed at 22nd iteration. Similar trend occured at DDR3-1940mhz as well.

    I recall it's probably the Cellshock PC3-14400 Micron D9GTR holding the 6x1GB modules back as it needed more vdimm for do such clocks even on P35/X48 DDR3 boards closer to 2.1+ volts for around DDR3-1920 8-8-8-x. Decided to stop there as unnecessary stress to i7 IMC ain't needed when I shall have some nice DDR3-2000 CAS7 rated triple channel memory due my way this coming week

    System specs
    • Intel Core i7 920 3836A756
    • Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120x38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
    • DFI LP UT X58-T3EH8 R.A51 - 01/23 beta bios
    • 128MB Gainward FX5200 PCI
    • Ram cooling: 3x 60x25mm Sunon 23.5cfm Maglev fans
    • 80GB Hitachi 7K80 SATAII
    • Pioneer DVD-RW
    • 1KW Corsair HX1000 psu
    • WinXP Pro SP3 full nLite updated hotfixes / Windows 7 beta dual boot


    Memory configuration:


    6x1GB Samsung HCF0 + Micron D9GTR @8-8-8-24 1T at 2.04v bios (2.045v DMM real)





    Super Pi 1M = 10.140s



    Super Pi 32M failed at 22nd loop @DDR3-1960Mhz 8-8-8-24 1T

    ---

  22. #347
    Xtreme Enthusiast
    Join Date
    Oct 2006
    Location
    35n28, 97w31
    Posts
    675
    Quote Originally Posted by eva2000 View Post
    ya right there
    Decided to stop there as unnecessary stress to i7 IMC ain't needed when I shall have some nice DDR3-2000 CAS7 rated triple channel memory due my way this coming week
    Thanks for that info. You wouldn't be waiting for these...

    *HOT* | Corsair DOMINATOR GT | 6GB (3x2GB) | DDR3-2000 7-8-7-20 @ 1.65V | *HOT*

    I've been waiting to see if I will be able to afford these pretty red things.
    | Intel Core i7-2600K | ASRock P67 EXTREME4 GEN3 | G.SKILL Sniper Series 8GB (2 x 4GB) DDR3 1866 | EVGA GTS 450 |
    | Swiftech APOGEE Drive II CPU Waterblock with Integrated Pump | XSPC RX360 | Swiftech MCP655-B Pump | XSPC Dual 5.25in. Bay Reservoir |
    | Thermaltake 850W PSU | NZXT SWITCH 810 | Windows 7 64-bit |

    [SIGPIC][/SIGPIC]

  23. #348
    Memory Addict
    Join Date
    Aug 2002
    Location
    Brisbane, Australia
    Posts
    11,651
    Quote Originally Posted by msgclb View Post
    Thanks for that info. You wouldn't be waiting for these...

    *HOT* | Corsair DOMINATOR GT | 6GB (3x2GB) | DDR3-2000 7-8-7-20 @ 1.65V | *HOT*

    I've been waiting to see if I will be able to afford these pretty red things.
    I believe so
    ---

  24. #349
    Registered User
    Join Date
    Sep 2008
    Location
    Portugal
    Posts
    41
    What do you think is the max uncore stable on i7 920 stable?
    The motherboard is this Dfi and the batch is 3838B079.. The cooling is True + 2x Noiseblocker XL2..

    Cumps,
    FuRy

  25. #350
    Memory Addict
    Join Date
    Aug 2002
    Location
    Brisbane, Australia
    Posts
    11,651
    Quote Originally Posted by FuryPT View Post
    What do you think is the max uncore stable on i7 920 stable?
    The motherboard is this Dfi and the batch is 3838B079.. The cooling is True + 2x Noiseblocker XL2..

    Cumps,
    FuRy
    for me max uncore is around 4000-4400mhz frequency. Uncore all depends on memory and memory volts
    ---

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