i7 920 + Gigabyte EX58-UD5 Overclock troubles

Zico

Zico

Zico

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I am having troubles with the following system (most of the parts purchase from OcUK in October last year - only built in May this year):

I7 920 - D0 Stepping
Gigabyte EX58-UD5 (13h bios)
Corsair XMS3 6GB (3x2GB) DDR3 PC3-12800C9 (1600MHz) Tri-Channel (TR3X6G1600C9)
Corsair H50

I started out by clocking to 3.8Ghz and all appeared to be fine when I tried out STALKER for a couple of hours. When I went to try Prime 95 Blend test (recommended to do so on another forum) it failed within a few minutes of starting.

I now have things at stock (settings below) but I am still getting errors under Prime 95 Blend testing.

**Edit**
I've updated the settings below but I am still getting Prime 95 errors.

I have been running Small FFT testing since 9pm Sunday and no errors so far.

Advanced CPU Features:
CPU Clock Ratio ................................ [21x]
Intel(R) Turbo Boost Tech .................. [Enabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Enabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Enabled]
Bi-Directional PROCHOT ..................... [Enabled]


Uncore & QPI Features:
QPI Link Speed .............................. x36
Uncore Frequency .......................... x25
Isonchronous Frequency ..................[Enabled]


Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) .....................133
PCI Express Frequency (MHz) ........... [100]

C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mV]
PCI Express Clock Drive ................... [900mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]


Advanced DRAM Features:
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [12]
DRAM Timing Selectable (SPD) .......... [Manual]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ......................9
tRCD .......................................9
tRP .........................................9
tRAS .......................................26


##Channel A Advanced Timing Control##
tRC ........................................ [auto]
tRRD ....................................... [auto]
tWTR ...................................... [auto]
tWR ........................................ [auto]
tWTP ....................................... [auto]
tWL ........................................ [auto]
tRFC ....................................... [auto]
tRTP ....................................... [auto]
tFAW ...................................... [auto]

Command Rate (CMD) ................ [auto]

##Channel A Misc Timing Control##
Round Trip Latency ...................
B2B CAS Delay ..........................


Advanced Voltage Control:

CPU
Load Line Calibration ................. [Enabled]
Dynamic Vcore (DVID) ............... [Normal]
CPU Vcore ............................... [Normal] = 1.248v
QPI/VTT Voltage 1.150v ............1.335v
CPU PLL 1.800v ....................... [auto]

MCH/ICH
PCIE 1.500v ........................... [auto]
QPI PLL 1.100v ....................... [auto]
IOH Core 1.100v ..................... [auto]
ICH I/O 1.500v ....................... [auto]
ICH Core 1.1v ........................ [auto]

DRAM
DRAM Voltage 1.500v .............. 1.66v
DRAM Termination 0.750v [AUTO]
Ch-A Data VRef. 0.750v [AUTO]
Ch-B Data VRef. 0.750v [AUTO]
Ch-C Data VRef. 0.750v [AUTO]
Ch-A Address VRef. 0.750v [AUTO]
Ch-B Address VRef. 0.750v [AUTO]
Ch-C Address VRef. 0.750v [AUTO]
Click to expand...
 
Last edited:
shouldnt the uncore be x16 or x17, normally is 2x the memory spd= 3200.

try these setting

CPU Clock Ratio ................................ [19x]
Intel(R) Turbo Boost Tech .................. [Disabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Enabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Enabled]
Bi-Directional PROCHOT ..................... [Enabled]


Uncore & QPI Features:
QPI Link Speed .............................. x36
Uncore Frequency .......................... x16 or x17
Isonchronous Frequency ..................[Enabled]


Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) .....................200
PCI Express Frequency (MHz) ........... [100]

System Memory Multiplier (SPD) ..............[x8]

have a read at this i7 overclocking guide

http://www.overclock.net/intel-cpus/538439-guide-overclocking-core-i7-920-930-a.html
 
Last edited:
Advanced Voltage Control:

CPU
Load Line Calibration ................. [Disabled]
Click to expand...
Usually this is enabled by default. You may need to up the vcore to compensate for this setting, as I did with my q9550 even at stock.
 
antran said:
shouldnt the uncore be x16 or x17, normally is 2x the memory spd= 3200.
Click to expand...

Nodiggidy123 said:
as above try your uncore at 16x. its way to high at 25
Click to expand...

Uncore is correct for now as my system is set to run @ stock (memory multiplier of 12 x2 +1 = 25)

megatron said:
Usually this is enabled by default. You may need to up the vcore to compensate for this setting, as I did with my q9550 even at stock.
Click to expand...

Load Line Calibration has always been set at Disabled by default. I've been told that this shouldn't make any difference (especially @ stock).
 
Memtest so far has passed 1 full pass and 85% of a second and zero errors.

Memory set to manual settings:
9-9-9-24
798MHz (DDR3-1596)
BCLK 133MHz
QPI 4.7GT/s
1.66v

**Edit**
2 passes and 86% on a third. Still no errors.
 
Last edited:
4 Full passes at memtest.

It's too late now for me to start messing with the settings again for tonight.
 
Any help guys?

Getting Prime 95 errors in Blend tests but Small FFT testing went for 22hours without fault.

Memtest seems to be good for 5+ tests.
 
ok here is my setting, running 24/7 stable

CPU Clock Ratio ................................ [19x]
Intel(R) Turbo Boost Tech .................. [Disabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Enabled]
Bi-Directional PROCHOT ..................... [Enabled]


Uncore & QPI Features:
QPI Link Speed .............................. x36
Uncore Frequency .......................... x16
Isonchronous Frequency ..................[Enabled]


Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) .....................200
PCI Express Frequency (MHz) ........... [100]

C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mV]
PCI Express Clock Drive ................... [900mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]


Advanced DRAM Features:
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [8]
DRAM Timing Selectable (SPD) .......... [Quick]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ......................8
tRCD .......................................8
tRP .........................................8
tRAS .......................................24


##Channel A Advanced Timing Control##
tRC ........................................ [auto]
tRRD ....................................... [auto]
tWTR ...................................... [auto]
tWR ........................................ [auto]
tWTP ....................................... [auto]
tWL ........................................ [auto]
tRFC ....................................... [auto]
tRTP ....................................... [auto]
tFAW ...................................... [auto]

Command Rate (CMD) ................ [auto]

##Channel A Misc Timing Control##
Round Trip Latency ...................
B2B CAS Delay ..........................


Advanced Voltage Control:

CPU
Load Line Calibration ................. [Disabled]
Dynamic Vcore (DVID) ............... [Normal]
CPU Vcore ............................... 1.28v
QPI/VTT Voltage 1.150v ............1.335v
CPU PLL 1.800v ....................... [auto]

MCH/ICH
PCIE 1.500v ........................... [auto]
QPI PLL 1.100v ....................... [auto]
IOH Core 1.100v ..................... [auto]
ICH I/O 1.500v ....................... [auto]
ICH Core 1.1v ........................ [auto]

DRAM
DRAM Voltage 1.500v .............. 1.66v
DRAM Termination 0.750v [AUTO]
Ch-A Data VRef. 0.750v [AUTO]
Ch-B Data VRef. 0.750v [AUTO]
Ch-C Data VRef. 0.750v [AUTO]
Ch-A Address VRef. 0.750v [AUTO]
Ch-B Address VRef. 0.750v [AUTO]
Ch-C Address VRef. 0.750v [AUTO]
 
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