Ex58-DS4 with Corei7 920 random crashes

[GNSinned]

Hi, I have put together this system early this year running Corei7 920 on the gigabyte EX58-DS4 board with 3X2gig OCZ triple channel OCZ3G1600LV6GK, and an Asus 9800GTX+ video card. Originally I was running vista ultimate, and I experienced random crashes where the system just hang. The crashes can happen anytime either during startups, internet browsing, gaming or waking from sleep. I thought it was vista having driver incompatibility issue, but since then I have upgraded to Win7 professional through a clean istall, and the problem persisted. I have updated the Bios to the latest version F11, and the CPU temp is normal. I have also ran a complete memtest and no problem there either.

I'm just frustrated since the system can be running very stable for days, and I'd think the problem's gone away, but a restart and it will crash again.
Any help would be much appreciated.

[wazza300]

Re: Ex58-DS4 with Corei7 920 random crashes

its more likely a bios setting thats causing the hangs,whats your current cpu,qpi/vtt,dram timings and voltages??

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

Hi, my CPU clock ratio is 20X at 2.66GHz (133x20), QPI 4.8GHz, Dram timing 7-7-7-16, voltages DDR at 1.5V and QPI at 1.15V

[Lsdmeasap]

Re: Ex58-DS4 with Corei7 920 random crashes

Please give us your full current BIOS settings, there is a template in my signature for you to do so.

For now, I can say you likely need to use more QPI/Vtt (1.35 or so), and to set your ram voltage to spec.

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

Hi, here's my Bio's complete setting:

Advanced CPU Features:
CPU Clock Ratio ................................ [20x]
Intel(R) Turbo Boost Tech .................. [Enabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Enabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Enabled]
Virtualization Technology ................... [Enabled] << Disabled if you do not use Vmware or Virtual PC Programs
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Clock Ratio..............................[Auto]
QPI Link Speed .............................. 4.8GHz
Uncore Clock Ratio...........................[Auto]
Uncore Frequency .......................... (3200MHz)
Isonchronous Frequency ..................[Enabled]

Standard Clock Control:
Base Clock (BCLK) Control ................ [Disabled]
BCLK Frequency (MHz) .....................133
PCI Express Frequency (MHz) ........... [Auto]
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 ...................... [Turbo]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [12.0]
Memory Frequency........................1600
DRAM Timing Selectable (SPD) .......... [Auto]
Profile DDR Voltage......................1.5V
Profile QPI Voltage......................1.15V
Channel A + B + C
Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ......................7 Auto
tRCD .......................................7 Auto
tRP .........................................7 Auto
tRAS .......................................16 Auto
Command Rate(CMD)...........................1 Auto
Below values may be left in Auto if you like, generally this is fine. For those users who DO Set advanced timings manually, please see some of my thoughts and findings about these settings and rules here
XtremeSystems Forums - View Single Post - Gigabyte EX58-UD5/Extreme Discussion Thread
##Channel A Advanced Timing Control##
tRC ........................................27 Auto (Should be = tRAS + tRP or above for stability)
tRRD .......................................4 Auto
tWTR ......................................4 Auto (Must be Write to Read Delay/Same Rank - (tWL + 4)
tWR ........................................8 Auto
tWTP .......................................19 Auto (tWTP Must = tWR + tWL + 4)
tWL ........................................7 Auto (tWL Must be CAS Latency -1)
tRFC .......................................60 Auto
tRTP .......................................4 Auto
tFAW ......................................16 Auto
Command Rate (CMD) ................1 Auto
##Channel A Misc Timing Control##
Round Trip Latency ...................47 Auto
B2B CAS Delay ..........................- Auto

Advanced Voltage Control:
CPU
Load Line Calibration ................. [Disabled]
CPU Vcore ...............................1.28750V Auto
QPI/VTT Voltage 1.150v ............1.150V Auto
CPU PLL 1.800v .......................1.800V Auto
MCH/ICH
PCIE 1.500v ...........................1.500V Auto
QPI PLL 1.100v .......................1.100V Auto
IOH Core 1.100v .....................1.100V Auto
ICH I/O 1.500v .......................1.500V Auto
ICH Core 1.1v ........................1.100V Auto
DRAM
DRAM Voltage 1.500v ..............1.500V Auto
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]

Thanks

[Lsdmeasap]

Re: Ex58-DS4 with Corei7 920 random crashes

Thanks, try these settings.

Advanced CPU Features:
CPU Clock Ratio ................................ [20x]
Intel(R) Turbo Boost Tech .................. [Enabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Enabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Enabled]
Virtualization Technology ................... [Enabled] << Disabled if you do not use Vmware or Virtual PC Programs
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Clock Ratio..............................[Auto] << Set x36 or x44 (x44 only for stock Blck, this will be fine)
QPI Link Speed .............................. 4.8GHz/6.4
Uncore Clock Ratio...........................[Auto] << Set 24-26 for 12 memory multi
Uncore Frequency .......................... (3200MHz)
Isonchronous Frequency ..................[Enabled]

Standard Clock Control:
Base Clock (BCLK) Control ................ [Disabled]
BCLK Frequency (MHz) .....................133
PCI Express Frequency (MHz) ........... [Auto]
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 ...................... [Turbo] << Try standard and extreme, sometimes extreme is best
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [12.0]
Memory Frequency........................1600
DRAM Timing Selectable (SPD) .......... [Auto] << manual/Expert then set each channel main timings one by one

Profile DDR Voltage......................1.5V
Profile QPI Voltage......................1.15V

Channel A + B + C
Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time .....................8
tRCD .......................................8
tRP .........................................8
tRAS .......................................24
Command Rate(CMD)...........................1

##Channel A Advanced Timing Control##
tRC ........................................27 Auto (Should be = tRAS + tRP or above for stability)
tRRD .......................................4 Auto
tWTR ......................................4 Auto (Must be Write to Read Delay/Same Rank - (tWL + 4)
tWR ........................................8 Auto
tWTP .......................................19 Auto (tWTP Must = tWR + tWL + 4)
tWL ........................................7 Auto (tWL Must be CAS Latency -1)
tRFC .......................................60 Auto <<<<<<<<<<<<<<<<<<<<< Set 84-88
tRTP .......................................4 Auto
tFAW ......................................16 Auto
Command Rate (CMD) ................1

##Channel A Misc Timing Control##
Round Trip Latency ...................47 Auto
B2B CAS Delay ..........................- Auto

Advanced Voltage Control:
CPU
Load Line Calibration ................. [Disabled]
CPU Vcore ...............................1.28750V Auto
QPI/VTT Voltage 1.150v ............1.150V Auto << Set 1.25-1.375
CPU PLL 1.800v .......................1.800V Auto

MCH/ICH
PCIE 1.500v ...........................1.500V Auto
QPI PLL 1.100v .......................1.100V Auto
IOH Core 1.100v .....................1.100V Auto << Auto may be fine, or try 1.14-1.2
ICH I/O 1.500v .......................1.500V Auto
ICH Core 1.1v ........................1.100V Auto

DRAM
DRAM Voltage 1.500v ..............1.500V Auto << Set 1.66
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]

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

Thanks I'll give it a go.

[Lsdmeasap]

Re: Ex58-DS4 with Corei7 920 random crashes

Any luck yet? Just checking in

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

Hi, I have set the ram voltage to spec 2 days ago to see if that alone works first, but last night it crashed again. So I have now made all the changes and set the CPU to extreme instead of turbo mode and the system seems to be runnning stable. Thanks

[wazza300]

Re: Ex58-DS4 with Corei7 920 random crashes

what qpi/vtt voltages are you using? maybe one or two clicks more would help

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

Right now, if I remembered correctly I have set it to 1.25

[wazza300]

Re: Ex58-DS4 with Corei7 920 random crashes

add two clicks to that youll be ok with those voltages as it might need just a touch more

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

Just wanted to say that I think the problem has been resolved. I haven't had a hangup since last week, which is rare. Thank you for the help!

[wazza300]

Re: Ex58-DS4 with Corei7 920 random crashes

its usually not enough qpi/vtt voltage that causes it to restart suddenly,glad youve fixed it,what current qpi/vtt is it stable with?

[GNSinned]

Re: Ex58-DS4 with Corei7 920 random crashes

It's been stable at 1.28V, but I've put it 1.32V and running fine. So, basically the cpu wasn't getting enough power? Is there any harm to the processor if the voltage is too high?