Cant seem to get past 4.2ghz

locoesse

locoesse

locoesse

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Hey all

Am struggling to get past 4.2 ghz on my i7 920
am using 6gb corsair dominator ddr3 ram.

asus rampage 2 extreme.
anyways
i think the issue is that my ram cant go higher than 1600
is there a way i can overclock it to go faster ? to say 1800 ?
 
locoesse said:
Hey all

Am struggling to get past 4.2 ghz on my i7 920
am using 6gb corsair dominator ddr3 ram.

asus rampage 2 extreme.
anyways
i think the issue is that my ram cant go higher than 1600
is there a way i can overclock it to go faster ? to say 1800 ?
Click to expand...

Hi there,

I think you need to give us more information before we can help you as you have not given us much to go on. For example is the chip a Co or DO, what voltage have you set, Uncore, QPI/VTT etc etc, also are you on air cooling or water - what are your temps etc.

Give us something to work with and perhaps we can help - anyway you are unlikely to get past 4.2 easily if at all unless on phase or serious cooling and a very good chip.

Mark
 
Woops thought the info was in my sig

I am watercooling

@4.2 ghz i prime tested it for 4 hours or so and i got + - 60c on all 4 cores

CPU Arch : 1 CPU - 4 Cores - 4 Threads
CPU PSN : Intel Core i7 CPU 920 @ 2.67GHz
CPU EXT : MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 EM64T VT-x
CPUID : 6.A.5 / Extended : 6.1A
CPU Cache : L1 : 4 x 32 / 4 x 32 KB - L2 : 4 x 256 KB
CPU Cache : L3 : 8192 KB
Core : Bloomfield (45 nm) / Stepping : D0
Freq : 4209.34 MHz (200.44 * 21)
MB Brand : Asus
MB Model : Rampage II Extreme
NB : Intel X58 rev 13
SB : Intel 82801JR (ICH10R) rev 00
GPU1 Type : Radeon HD 5900
GPU1 Clocks : Core 157 MHz / RAM 300 MHz
GPU2 Type : Radeon HD 5900
GPU2 Clocks : Core 724 MHz / RAM 1000 MHz
DirectX Version : 11.0
RAM : 6144 MB DDR3 Dual Channel
RAM Speed : 801.8 MHz (2:8) @ 9-9-9-24
Slot 1 : 2048MB (10700)
Slot 1 Manufacturer : Corsair
Slot 2 : 2048MB (10700)
Slot 2 Manufacturer : Corsair
Slot 3 : 2048MB (10700)
Slot 3 Manufacturer : Corsair
 
4gfullload.png


only have a screeny of the 4ghz load test

oh lawd i fail at screenshots :(

oh and this was a blend test on prime
 
Last edited:
Anyways only settings i have changed on the bios
Is set the multi to 21
blk to 200
vcore to 1.4
qpi to 1.4
and everything else is auto

Oh and chip is D0 but that was mentioned above
 
Last edited:
Hitting 4.2ghz having only changed vcore and qpi is fortunate, however to go higher you're going to have to spend time researching this. Work out what all the other voltages are and experiment with changing them.
 
Im @ 4.2 with everything on auto execpt my RAM voltage - MUST get round to tetsing with lower voltages :S
 
locoesse said:
So is my ram holding me back ? if it stays @ 1600 ?
Click to expand...

If your worried about your ram speed then drop it down to x6 as it is on x8 at present, this will drop you to 1200 and give it room to move.

Have you tried losening up the timings? thats another way to go.
 
locoesse said:
Woops thought the info was in my sig

I am watercooling

@4.2 ghz i prime tested it for 4 hours or so and i got + - 60c on all 4 cores
Click to expand...

These are the settings they'e talking about.:D

Ai Tweaker

Ai overclock tuner Manual/Auto
CPU Speed Setting __
Intel Speedstep
Intel turbo Mode
Bclk Frequency
PCI Frequency
Dram Frequency
UNCLK Frequency
QPI Data Rate
Cpu voltage
CPU PLL voltage
QPI/Dram voltage
IOH voltage
IOH PCIE Voltage
ICH Voltage
ICH PCIE Voltage
Dram Bus Voltage
Load-Line Calibration
CPU Differential Amplitude
CPU Clock Skew
CPU Spread Spectrum
IOH Clock Skew
PCIE Spread Spectrum

Advanced
CPU ratio setting
C1E Support
Hardware Prefetcher
Adjacent Cache Line Pre
Intel Virtualization
CPU Tm Function
Execute Disable Bit
Intel Hyper tech
Active Processor cores All
A20M
Intel SpeedStep Tech
Intel Turbo Mode Tech
Intel C State Tech
 
reygjabla said:
These are the settings they'e talking about.:D
Click to expand...

Ahh gotcha,

AI Overclocker Tuner - Manual
OC from CPU level up - auto
oc from memory level up - auto
cpu ration setting - 21
cpu turbo power limit - enabled

bclk frequency - 200
pcie frequency - 100
dram frequency - auto
uclk frequency - auto
qpi link data rate - auto

epu II phase control - full phase
Load-Line calibration - auto
cpu differential amplitude - auto

extreme ov - disabled

cpu voltage control - absolute (VID)
cpu voltage - auto
cpu pll voltage - auto
qpi/dram core - voltage
ioh voltage - auto
ioh pcie voltage auto
ich voltage - auto
ich pcie voltage - auto

dram bus voltage - auto

cpu spread spectrum - auto
pcie spread spectrum - auto
cpu clock skew - auto
ioh clock skew - auto


CPU config
CPU ratio setting - 21
C1E support - enabled
Hardware prefetcher - enabled
adjacent cache line prefetch - enabled
interl r virtualization tech - enabled
cpu tm function - enabled
execute disable bit - enable
intel r HT technology - enabled
active processor cores - all
a20m - disabled
intel r speedstep tm tech - enabled
intel r c-state tech - disabled

DRAM timing control

Everything is on AUTO
 
Fred said:
If your worried about your ram speed then drop it down to x6 as it is on x8 at present, this will drop you to 1200 and give it room to move.

Have you tried losening up the timings? thats another way to go.
Click to expand...

mm strange i cant seem to find a setting that lets me change the multi of the ram.
 
Here.

dram frequency - auto
uclk frequency - auto
qpi link data rate - auto

Note that this would depend entirely on your BCLK. So you need to choose the lowest DRam frequency and lowest UCLK frequency and just leave the QPI on auto.
 
Last edited:
reygjabla said:
Here.

dram frequency - auto
uclk frequency - auto
qpi link data rate - auto

Note that this would depend entirely on your BCLK. So you need to choose the lowest DRam frequency and lowest UCLK frequency and just leave the QPI on auto.
Click to expand...

this is the weird thing
whenever i try anything that isnt 1200 ,1600 or 1800
it just wont boot

so say for instance i select

cpu ratio - 21
bclk freq - 205
dram freq - 1233
uclk freq - 2466
qpi link data rate - auto

That should get me 4303Mhz
but when i save and exit the pc reboots and the screen stays black.
 
JonJ678 said:
you're going to have to spend time researching this. Work out what all the other voltages are and experiment with changing them.
Click to expand...

How is this going? If you don't know what any of the settings are referring to, what chance do you have of setting them intelligently? Simply typing them into google one after the other will get you quite a long way.

Is your 4.2ghz stable btw?
 
JonJ678 said:
How is this going? If you don't know what any of the settings are referring to, what chance do you have of setting them intelligently? Simply typing them into google one after the other will get you quite a long way.

Is your 4.2ghz stable btw?
Click to expand...

yeah 4.2 is stable as anything
prime blend tested it for 4 hours
temps spiked up kinda high at one point
but became stable around 58c on all cores

idles @ 31c
 
Last edited:
My current computer will pass 12 hours of prime blend, and prime small, and eight hours of ibt, but will crash in general use. It doesn't like a lot of data moving into or from ram in a short time period. This is exceptionally unlucky on my part, but it does serve to demonstrate that a four hour prime run isn't particularly conclusive.

It was the first half of my post that was more important though. Everyone works to a slightly different definition of stability, but the more you know, the faster it'll run
 
JonJ678 said:
My current computer will pass 12 hours of prime blend, and prime small, and eight hours of ibt, but will crash in general use. It doesn't like a lot of data moving into or from ram in a short time period. This is exceptionally unlucky on my part, but it does serve to demonstrate that a four hour prime run isn't particularly conclusive.

It was the first half of my post that was more important though. Everyone works to a slightly different definition of stability, but the more you know, the faster it'll run
Click to expand...

I played crysis for about 2 hours without any hassles,
Eve was running like **** tho, but i think thats partly due to some shader issues with ati cards.
 
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