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not rock solid..

448 Views 2 Replies 3 Participants Last post by  Lome_Wolf236
im having some trouble getting my oc 100% stable. im using an i7 920 D0 (batch #3851a220), p6t deluxe v2 crossflashed with bios 0006 and 6GB gskill trident pc-16000 9-9-9-24. here are my current settings:

CPU Ratio Setting: 21x
BLCK Frequency: 200
PCIE Frequency: 100
DRAM Frequency: 1600
UCLK Frequency: 3200
QPI Link Data Rate: 7200

DRAM Timing Control:

1st Information :

CAS# Latency: 7
DRAM RAS# to CAS# Delay: 7
DRAM RAS# ACT Time: 18
DRAM Timing Mode: 1N

CPU Voltage: 1.36250
CPU PLL Voltage: 1.82
QPI/DRAM Core Voltage: 1.36250
IOH Voltage: Auto
IOH PCIE Voltage: Auto
ICH Voltage: Auto
ICH PCIE Voltage: Auto
DRAM Bus Voltage: 1.66

Load Line Calibration: Enabled
CPU Differential Amplitude: +800mv
CPU Clock Skew: Auto
CPU Spread Spectrum: Disabled
IOH Clock Skew : Auto
PCIE Spread Spectrum: Disabled

Advance CPU Settings:
CPU Ratio Setting: 21x
C1E Suppport: Disabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetch: Enabled
Intel® Virtualization Tech: Disabled
CPU TM Function: Enabled
Execute Disable Bit: Disabled
Intel (R) HT Techology: Enabled
Active Processor Cores: All

Heres the deal.. i had the qpiv first at the same voltage of the vcore, 1.36250v and it was stable during 30m of linx and 1h of occt.
decided to try prime95 and heres where it gets tricky... after 2 hours of prime blend it gives me a bsod.
so i raised the qpiv to 1.36875, tried linx and occt and it was stable, but bsod afer 4h +/- in prime.
so decided to raise a litle more the qpiv to 1.37500v and it was stable in linx and occt (at least 1h and 55m) but after 6hrs i get a bsod in prime...
i cant raise the qpiv more because its not stable in linx or occt...

heres prime95 log: http://freetexthost.com/b42n3usfcz

Can someone please tell me what im i missing?


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Try upping your CPU PLL Voltage to 1.88, setting IOH Voltage to 1.2, and ICH Voltage to 1.2.
try LOWERING your QPI/VTT voltage
if you get BSOD 0x00000124 its because QPI voltage is too low OR too high
also VCore is quite high... even with LLC and HT enabled

messing with IOH, ICH and CPU PLL will help a bit without any doubt

and watch your temps! higher temps = less stable
ask any OCer here: WE HATE SUMMER

(Quebec,Canada + January = -30, -40 °C) <-- lets OC outdoors!
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