• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

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

Joined
Jul 25, 2005
Messages
99 (0.02/day)
Likes
33
Location
Brisbane, Australia
#1
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





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.
 
Joined
Jul 25, 2005
Messages
99 (0.02/day)
Likes
33
Location
Brisbane, Australia
#2
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.



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:
[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

Moderator
Staff member
Joined
May 28, 2005
Messages
4,296 (0.93/day)
Likes
1,937
Location
Southampton, UK
System Name Raisin
Processor Ryzen 7 1800X 4.1GHz @ 1.425V
Motherboard Asus Crosshair VI Hero
Cooling 2x240mm rads, EKWB pump/res and GPU block. XSPC Raystorm pro CPU block (lapped)
Memory G.Skill TridentZ DDR4-4266 16GB @ 3466MHz CL14 1T
Video Card(s) EVGA 1080Ti FE. Hard modded to increase tdp limit.
Storage Samsung 960 Evo 500GB + Corsair 120GB ssd (linux)
Display(s) Asus ROG Swift PG278QR 165hz 1440P
Case Phanteks Enthoo Pro
Power Supply EVGA Supernova 750W G3
Mouse Logitech G602
Keyboard Cherry MX Board 6.0
Software Win 10 & Linux Mint 18.3
#3
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!
 
Joined
Jul 25, 2005
Messages
99 (0.02/day)
Likes
33
Location
Brisbane, Australia
#5
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





Max Screenshot @228Bclk with low CPU VTT



Max 32M @225Bclk

 
Last edited:
Joined
Oct 10, 2008
Messages
3,471 (1.02/day)
Likes
655
System Name Acer Aspire V3-771G-53218G75Maii
Processor Core i5 3210M (2,5-3,1Ghz)
Memory 8GB DDR3 SODIMM
Video Card(s) Geforce GT650M
Storage Samsung 830 256GB - 750GB Toshiba drive
Software Windows 7 x64 Home Premium (non-acer-bloatware)
#6
What do you use for case cooling? I'm wondering why your load temps are below my idle temps, even with a TRUE :D
 
Joined
Oct 10, 2008
Messages
3,471 (1.02/day)
Likes
655
System Name Acer Aspire V3-771G-53218G75Maii
Processor Core i5 3210M (2,5-3,1Ghz)
Memory 8GB DDR3 SODIMM
Video Card(s) Geforce GT650M
Storage Samsung 830 256GB - 750GB Toshiba drive
Software Windows 7 x64 Home Premium (non-acer-bloatware)
#8
Still, your temps are insane... Did you check other temp monitors (RealTemp, CoreTemp etc.) to see if those temps are consistent?
 
Joined
Oct 10, 2008
Messages
3,471 (1.02/day)
Likes
655
System Name Acer Aspire V3-771G-53218G75Maii
Processor Core i5 3210M (2,5-3,1Ghz)
Memory 8GB DDR3 SODIMM
Video Card(s) Geforce GT650M
Storage Samsung 830 256GB - 750GB Toshiba drive
Software Windows 7 x64 Home Premium (non-acer-bloatware)
#10
Smart Guardian under reports cpu temp by 10-15C idle and around 25-40C load compared to Realtemp 2.90 :)
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.