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DFI UT X58-T3EH8 - i7 920 @230 Bclk!

Discussion in 'Motherboards & Memory' started by eva2000, Jan 15, 2009.

  1. eva2000 New Member

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    Max 230Mhz BCLK​


    I had all but given up after I found my initial max Bclk 32M Pi stable BCLK of 220Mhz with tight 878mhz 7-7-7-17 timings.

    But I'd like to thank Hazzan (233BCLK) and Solarfall (230BCLK) for their inspiration with their DFI UT X58-T3EH8 max BCLK attempts as this prompted me to keep working at it :thumb:

    After numerous bios reboots and trying looser timings and a few voltage combinations, I finally surpassed my previous max memtest86+ v2.11 bootable BCLK of 224, moving all the way up to 230-231 memtest bootable. :woot:

    Enough for a quick boot into windows for a CPUZ Validation at least :D

    [​IMG]

    [​IMG]

    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 - 01/06 beta bios
    • 128MB Gainward FX5200 PCI
    • 2x1GB Corsair DDR3-2133C9DF Dominator
    • Ram cooling: 3x 60x25mm Sunon 23.5cfm Maglev fans
    • 750GB Samsung HD753LJ
    • Pioneer DVD-RW
    • 1KW Corsair HX1000 psu
    • WinXP Pro SP3 full nLite updated hotfixes

    01/06 Beta Bios settings used:
    Code:
    [B]Genie BIOS Setting[/B]
    
    [B]CPU Feature[/B]
    Set VR Current Limit Max: Disabled
    Thermal Management Control: Disabled
    EIST Function: Disabled
    CxE Function: Disabled
    Execute Disable Bit: Disabled
    Virtualization Technology: Disabled
    TDC Enable: Disabled
    x TDC Limit: 0
    TDP Enable: Disabled
    x TDP Limit: 0
    
    [B]***** Logical Processor Setting *****[/B]
    Intel HT Technology: Enabled
    Active Processor Cores: All
    
    [B]DRAM Timing[/B]
    Memory Control Setting: AUTO
    Memory LowGap: 1024M
    
    DRAM Command Rate: AUTO
    CAS Latency Time (tCL): 9
    RAS# to CAS# Delay (tRCD): 9
    RAS# Precharge (tRP): 9
    Precharge Delay (tRAS): 24
    REF to ACT Delay (tRFC): 88
    Write to PRE Delay (tWR): AUTO
    Rank Write to Read (tWTR): 16
    ACT to ACT Delay (tRRD): 6
    Row Cycle Time (tRC): 31
    Read CAS# Precharge (tRTP): 6
    Four ACT WIN Time (tFAW): 31
    
    [B]Voltage Setting[/B]
    O.C. Shut Down Free: Enable O.C.S.D.F
    CPU VID Control: 1.350v
    CPU VID Special Add Limit: Enabled
    CPU VID Special Add: Auto
    Vcore Droop Control: Enabled
    [B]DRAM Bus Voltage: 1.875v[/B]
    [B]DRAM PWM Switch Frequency: Nominal[/B]
    DRAM PWM Phase Control: 2 Phase Operation
    [B]CPU VTT Special Add: +0.0750v
    CPU VTT Voltage: 1.53v[/B]
    [B]VTT PWM Switch Frequency: Nominal[/B]
    VTT PWM Phase Control: 2 Phase Operation
    CPU PLL Voltage: 1.80v
    [B]IOH/ICH 1.1V Voltage: 1.27v
    IOH Analog Voltage: 1.25v
    ICH 1.5 Voltage: 1.7v[/B]
    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
    1 core Max Turbo Ratio: 22x
    2 core Max Turbo Ratio: 21x
    3 core Max Turbo Ratio: 21x
    4 core Max Turbo Ratio: 21x
    CPU Non-Turbo Clock Ratio: 17x
    
    [B]* BCLK/UCLK/QPI Controller Settings *[/B]
    QPI Control Settings: Enabled
    QPI Link Fast Mode: Enabled
    QPI Frequency: AUTO
    CPU Base Clock (BCLK): 231 Mhz
    Boot Up CPU Base Clock: AUTO
    PCIE Clock: 103 Mhz
    DRAM Frequency: 6x
    UnCore Frequency: 12x (optimal to keep Uncore at 2x DRAM Frequency)
    
    CPU Spread Spectrum: Disabled
    PCIE Spread Spectrum: Disabled
    
    Settings highlighted in bold were what I played with to reach 230 BCLK.
    infrared says thanks.
  2. eva2000 New Member

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    Max BCLK Super Pi 32M Benchable​


    Did a fresh hard drive install which is WinXP Pro SP3 & Windows 7 beta dual bootable before attempting max Super Pi 32M benchable Bclk frequency tests. This time with 3x1GB Samsung HCF0 based modules for triple channel :)

    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 - 01/06 beta bios
    • 128MB Gainward FX5200 PCI
    • 2x1GB Corsair DDR3-2133C9DF Dominator + 1GB G.Skill PC3-12800HZ (3x Samsung HCF0)
    • 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

    Triple Channel CPUZ Validation @229Bclk

    Haven't pushed ICH 1.5 Voltage yet like I did for 230Bclk, so that will be next up for testing.

    [​IMG]

    QPI Frequency = 4123Mhz!

    [​IMG]

    Super Pi 32M

    Ignore the times just testing with loose timings. Higher Bclk do require more vdimm that usual due to QPI ceiling. Without enough vdimm DFI post diagnostic LED = CF code for lack of vdimm voltage.

    @226Bclk bios set - QPI Frequency = 4063Mhz

    [​IMG]

    @226Bclk setFSB windows set - QPI Frequency = 4074Mhz

    [​IMG]

    @227Bclk - QPI Frequency = 4088Mhz

    [​IMG]

    @228Bclk - QPI Frequency = 4110Mhz
    - had to bump vdimm, vcore and CPU VTT Special percentage added
    - either a bad run, or lack of volts for either vdimm or CPU VTT or both led to slower 32M Pi time ?

    [​IMG]




    01/06 Beta Bios settings used:
    Code:
    [B]Genie BIOS Setting[/B]
    
    [B]CPU Feature[/B]
    Set VR Current Limit Max: Disabled
    Thermal Management Control: Disabled
    EIST Function: Disabled
    CxE Function: Disabled
    Execute Disable Bit: Disabled
    Virtualization Technology: Disabled
    TDC Enable: Disabled
    x TDC Limit: 0
    TDP Enable: Disabled
    x TDP Limit: 0
    
    [B]***** Logical Processor Setting *****[/B]
    Intel HT Technology: Enabled
    Active Processor Cores: All
    
    [B]DRAM Timing[/B]
    Memory Control Setting: AUTO
    Memory LowGap: 1024M
    
    DRAM Command Rate: AUTO
    CAS Latency Time (tCL): 9
    RAS# to CAS# Delay (tRCD): 9
    RAS# Precharge (tRP): 9
    Precharge Delay (tRAS): 24
    REF to ACT Delay (tRFC): 88
    Write to PRE Delay (tWR): AUTO
    Rank Write to Read (tWTR): 16
    ACT to ACT Delay (tRRD): 6
    Row Cycle Time (tRC): 31
    Read CAS# Precharge (tRTP): 6
    Four ACT WIN Time (tFAW): 31
    
    [B]Voltage Setting[/B]
    O.C. Shut Down Free: Enable O.C.S.D.F
    CPU VID Control: 1.350v * 1.3875v
    CPU VID Special Add Limit: Enabled
    CPU VID Special Add: Auto
    Vcore Droop Control: Enabled
    [B]DRAM Bus Voltage: 1.875v & 1.905v[/B]
    [B]DRAM PWM Switch Frequency: Nominal[/B]
    DRAM PWM Phase Control: 2 Phase Operation
    [B]CPU VTT Special Add: +0.0375v & +0.0500v
    CPU VTT Voltage: 1.53v[/B]
    [B]VTT PWM Switch Frequency: Nominal[/B]
    VTT PWM Phase Control: 2 Phase Operation
    CPU PLL Voltage: 1.80v
    [B]IOH/ICH 1.1V Voltage: 1.25v
    IOH Analog Voltage: 1.20v
    ICH 1.5 Voltage: 1.5v[/B]
    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
    1 core Max Turbo Ratio: 22x
    2 core Max Turbo Ratio: 21x
    3 core Max Turbo Ratio: 21x
    4 core Max Turbo Ratio: 21x
    CPU Non-Turbo Clock Ratio: 18x
    
    [B]* BCLK/UCLK/QPI Controller Settings *[/B]
    QPI Control Settings: Enabled
    QPI Link Fast Mode: Enabled
    QPI Frequency: AUTO
    CPU Base Clock (BCLK): 226 to 229 Mhz
    Boot Up CPU Base Clock: AUTO
    PCIE Clock: 103 Mhz
    DRAM Frequency: 8x
    UnCore Frequency: 16x (optimal to keep Uncore at 2x DRAM Frequency)
    
    CPU Spread Spectrum: Disabled
    PCIE Spread Spectrum: Disabled
    
    infrared says thanks.
  3. infrared New Member

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    Awesome work Eva, and thanks for showing the settings you used!

    Hmmm, i'm gonna have to get an i7 setup together soon i think!
  4. eva2000 New Member

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    thanks.. you're welcome :)
  5. eva2000 New Member

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    i7 920 3836A756 #2
    Max BClock​

    Definitely this second i7 920 3836A756 is better than my first one in terms of max Bclock and low CPU VTT usage.

    i7 920 3836A756 #1
    • max memtest86+ bootable bclk = 224 requiring 1.58-1.60v CPU VTT
    • max super pi 32m bclk = 222bclk (without IOH/ICH voltage tweaks) & 228bclk (with IOH/ICH voltage tweaks) requiring 1.60-1.61v CPU VTT
    • max CPUZ Validation = 230bclk requiring 1.60-1.63v CPU VTT

    i7 920 3836A756 #2
    • max memtest86+ bootable bclk = 229bclk requiring 1.40-1.48v CPU VTT
    • max super pi 32m bclk = 227bclk (without IOH/ICH voltage tweaks) & ???bclk (with IOH/ICH voltage tweaks TBD) requiring 1.48-1.50v CPU VTT
    • max CPUZ Validation = 231bclk requiring 1.50v CPU VTT

    TBD - Haven't tested 2nd cpu with IOH/ICH tweaks yet

    Max Validation @231Bclock

    CPU VTT = 1.50v

    [​IMG]

    [​IMG]

    Max Screenshot @228Bclk with low CPU VTT

    [​IMG]

    Max 32M @225Bclk

    [​IMG]
    Last edited: Feb 6, 2009
  6. Thrackan

    Thrackan

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    What do you use for case cooling? I'm wondering why your load temps are below my idle temps, even with a TRUE :D
  7. eva2000 New Member

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    No case, open desk setup - haven't used a case in 5+ yrs :)

    bit higher at same cpu vtt volts

    Max 32M @227Bclk

    [​IMG]
  8. Thrackan

    Thrackan

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    Still, your temps are insane... Did you check other temp monitors (RealTemp, CoreTemp etc.) to see if those temps are consistent?
  9. eva2000 New Member

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    Smart Guardian under reports cpu temp by 10-15C idle and around 25-40C load compared to Realtemp 2.90 :)
  10. Thrackan

    Thrackan

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    I've had the same thing with SpeedFan, which was consistently 15 degrees lower than CoreTemp, RealTemp and HWMonitor. I decided to trust the latter three then.

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