right then
point number one. your cooler needs to go. the freezer 7 is going to seriously limit your clocking ability.
avoid the h50/70. the 50 will just about manage it and the 70 is noisy and overpriced.
these are two factors you need to avoid when overclcoking.
you have tall memory so that limints your cooler choice somewhat.
perhaps consider a
prolimatech megahalem with a
viper fan. this is a winning combo and will serve you well up to 4.2ghz.
maybe consider a good quality paste but the megahalem comes with a very good thermal paste anyway.
moving along. you have dominator GT. chances are this will be CL8 or CL9
they made some CL7 kits but these were very expensive and hard to obtain.
your dominator does not needthe airflow fan. it is loud and noisy and all it will do is impede airflow to the cpu cooler.
plus the domGT looks sleek anyway.
your motherboard could be the deciding factor here.
having said that, any 920 can do 4.2ghz easily enough but getting your memory overclocked to 2000mhz is going to be tricky if the cpu hasnt got a strong memory controller.
personally i would aim to get the cpu clock to 4ghz/4.2ghz and get the memory at around 1600mhz first then move on to 2000mhz on the ram afterwards
before we start, get yourself on the very latest bios for your board.
for 4ghz you literally need to do the following:
Code:
AI Tweaker
****************************
AI Overclock Tuner: Manual
CPU Ratio Setting: 20
Intel (R) SpeedStep TM Tech: ENABLED
Intel Turbo Boost: Disabled
BCLK Frequency: 200
PCIE Frequency: 101
DRAM Frequency: 1600
UCLK Frequency: AUTO
QPI Link Data Rate: AUTO
*******************
DRAM Timing Control [[SIZE="3"][COLOR="Yellow"]set these values to the same as your memory modules are rated to[/COLOR][/SIZE]]
*******************
DRAM CAS Latency: 8
DRAM RAS# to CAS# Delay : 8
DRAM RAS# PRE Time: 8
DRAM RAS# ACT Time: 20
DRAM RAS# to RAS# Delay: AUTO
DRAM REF Cycle Time: AUTO
DRAM WRITE Recovery Time: AUTO
DRAM READ to PRE Time: AUTO
DRAM FOUR ACT WIN Time: AUTO
DRAM Back-To-Back CAS# Delay: AUTO
DRAM Timing Mode: 1T
DRAM Round Trip Latency on CHA: AUTO
DRAM Round Trip Latency on CHB: AUTO
DRAM Round Trip Latency on CHC: AUTO
DRAM WRITE To READ Delay(DD): AUTO
DRAM WRITE To READ Delay(DR): AUTO
DRAM WRITE To READ Delay(SR): AUTO
DRAM READ To WRITE Delay (DD): AUTO
DRAM READ To WRITE Delay (DR): AUTO
DRAM READ To WRITE Delay (SR): AUTO
DRAM READ To READ Delay(DD): AUTO
DRAM READ To READ Delay(DR): AUTO
DRAM READ To READ Delay(SR): AUTO
DRAM WRITE To WRITE Delay(DD): AUTO
DRAM WRITE To WRITE Delay(DR): AUTO
DRAM WRITE To WRITE Delay(SR): AUTO
CPU Voltage: 1.3v
CPU PLL Voltage: AUTO
QPI/DRAM Core Voltage: AUTO
IOH Voltage: AUTO
IOH PCIE Voltage: AUTO
ICH Voltage: AUTO
ICH PCIE Voltage: AUTO
DRAM Bus Voltage: 1.65
DRAM DATA REF Voltage on CHA: AUTO
DRAM CTRL REF Voltage on CHA: AUTO
DRAM DATA REF Voltage on CHB: AUTO
DRAM CTRL REF Voltage on CHB: AUTO
DRAM DATA REF Voltage on CHC: AUTO
DRAM CTRL REF Voltage on CHC: AUTO
Load-Line Calibration: Enabled
CPU Differential Amplitude: AUTO
CPU Clock Skew: AUTO
CPU Spread Spectrum: Disabled
IOH Clock Skew: AUTO
PCIE Spread Spectrum: Disabled
Advanced/CPU Configuration
****************************
CPU Ratio Setting: AUTO
C1E Support: Enabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetcher: Enabled
Intel (R) Virtualization Tech: Enabled
CPU TM Function: Enabled
Execute Disable Bit: Enabled
Intel (R) HT Technology: Enabled
Active Processor Cores: ALL
A20M: Disabled
Intel (R) C-State Tech: Enabled
****************************
not much to change there and the memory is set fairly slack considering what it is.
now go and test that for a while. if it is stable then you can move on.
personally i would tweak that profile by doing the following steps:
1. drop cpu vcore down by one notch
2. go into windows and test using intel burn test for 20 passes
3. if successful then go to the bios and drop another notch
repeat this process until your cpu becomes unstable and fails the test/wont boot into windows
then raise it back a notch and test it properly. 8 hours of prime is my preffered choice.
this will ensure that your overclock is running efficiently
******************************
once you have this stable you can try 4ghz with 2000mhz memory
do the same overclock but change the following [this should work but depends on the quality of your chip]
Code:
DRAM Frequency: 2000MHz
CPU PLL Voltage: 1.8-1.9v
QPI/DRAM Core Voltage: 1.325-1.35v
these voltages will vary depending on your cpu like i said.
try this
after your 4ghz is stable.
for 4.2GHz things will get a little trickier
you need to raise the multiplier and with the 920 you should be able to set 21 as the multiplier on the board with the latest bios.
this will provide you with the 4.2ghz frequency
use the exact same settings as i mentioned for 4ghz but change the multiplier and the cpu voltage
you would need to raise your vcore probably to around 1.35v then work backwards as before
try 4.2 with the memory set to 1600mhz again
if have success with all of that then post back and i will see if we can get the memory at 2000mhz too
Good Luck
rjk
