DFI UT X58-T3EH8 - i7 920 @230 Bclk!
This is a discussion on DFI UT X58-T3EH8 - i7 920 @230 Bclk! within the DFI Intel Motherboard / CPU forums, part of the Intel motherboards / CPU category; Max 230Mhz BCLK I had all but given up after I found my initial max Bclk 32M Pi stable BCLK ...
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14-01-2009, 02:39 AM
| #1 (permalink) |
| Administrator |  DFI UT X58-T3EH8 - i7 920 @230 Bclk! 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  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.  Enough for a quick boot into windows for a CPUZ Validation at least    System specs
01/06 Beta Bios settings used: 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 TDC Enable: Disabled x TDC Limit: 0 TDP Enable: Disabled x TDP Limit: 0 ***** Logical Processor Setting ***** Intel HT Technology: Enabled Active Processor Cores: All DRAM Timing 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 Voltage Setting 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 DRAM Bus Voltage: 1.875v DRAM PWM Switch Frequency: Nominal DRAM PWM Phase Control: 2 Phase Operation CPU VTT Special Add: +0.0750v CPU VTT Voltage: 1.53v VTT PWM Switch Frequency: Nominal VTT PWM Phase Control: 2 Phase Operation CPU PLL Voltage: 1.80v IOH/ICH 1.1V Voltage: 1.27v IOH Analog Voltage: 1.25v ICH 1.5 Voltage: 1.7v 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 * BCLK/UCLK/QPI Controller Settings * 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 |
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16-01-2009, 01:23 AM
| #4 (permalink) |
| Administrator | 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
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.  QPI Frequency = 4123Mhz!  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  @226Bclk setFSB windows set - QPI Frequency = 4074Mhz  @227Bclk - QPI Frequency = 4088Mhz  @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 ?  01/06 Beta Bios settings used: 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 TDC Enable: Disabled x TDC Limit: 0 TDP Enable: Disabled x TDP Limit: 0 ***** Logical Processor Setting ***** Intel HT Technology: Enabled Active Processor Cores: All DRAM Timing 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 Voltage Setting 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 DRAM Bus Voltage: 1.875v & 1.905v DRAM PWM Switch Frequency: Nominal DRAM PWM Phase Control: 2 Phase Operation CPU VTT Special Add: +0.0375v & +0.0500v CPU VTT Voltage: 1.53v VTT PWM Switch Frequency: Nominal VTT PWM Phase Control: 2 Phase Operation CPU PLL Voltage: 1.80v IOH/ICH 1.1V Voltage: 1.25v IOH Analog Voltage: 1.20v 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 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 * BCLK/UCLK/QPI Controller Settings * 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 |
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16-01-2009, 10:51 PM
| #5 (permalink) |
| Administrator | Max BCLK with 10x Memory Multiplier - limited by memory max overclock frequency Now to try max Bclk frequency with 10x memory multiplier - ultimately will be limited by how far my memory modules can overclock System specs
Interesting that up to DDR3-2263Mhz system registered 3x1GB Samsung HCF0 unmatched modules as triple channel, but when I hit DDR3-2298Mhz, windows reported dual channel instead of triple channel ?? Not enough volts somewhere or maybe my 1GB G.Skill PC3-12800HZ module can't keep up with my Corsair DDR3-2133C9DF modules ?? Triple Channel CPUZ Validation @226Bclk + DDR3-2263Mhz at 1.995v bios vdimm   QPI Bus frequency = 4074Mhz  DDR3-2298Mhz at 2.025v vdimm bios Triple channel showing up as Dual channel   Max Super Pi 32M @DD3-2228Mhz 1.995v vdimm bios   |
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06-02-2009, 01:23 PM
| #6 (permalink) |
| Administrator | i7 920 3836A756 #2 Max BClock Testing 2nd twin batch cpu and 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
i7 920 3836A756 #2
TBD - Haven't tested 2nd cpu with IOH/ICH tweaks yet Max Validation @231Bclock CPU VTT = 1.50v   Max Screenshot @228Bclk with low CPU VTT  Max 32M @225Bclk  |
| Last edited by eva2000; 07-02-2009 at 12:01 AM. | |
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| 230bclk, dfi x58, i7 920, max bclk |
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