Overclock.net › Forums › Intel › Intel CPUs › i5 760 noob overclocking :)
New Posts  All Forums:Forum Nav:

i5 760 noob overclocking :)

post #1 of 36
Thread Starter 
Ok so i`ve build this new rig a few days ago and decided to overclock it a little

I`ve read some tutorials on how to overclock i5&i7 (most of them were written for 750 and 860) - most of these tutorials want u to start at 4ghz or with raised voltages ..but i didnt want that so i took my own approach

sfuff i changed so far:
-disabled all those cpu power saving features and turbo
-set memory timings manually(7.8.7.24.2n)
-set DRAM to 1.36v
-set cpu vcore to 1.1v
-set IMC to 1.14v
-set cpu multiplier to 20
(i left everything else as it was or set on auto)
and thats it ...then I started to raise BCK

right now im at 3600mhz(180x20) with those same voltages
and that kinda amazes me ..since in those tutorials most ppl are runing way higher voltages ..does this cpu really overclocks so well or am i doing something wrong??

here are all my settings:
*voltage(read from rc tweak it):
-cpu vcore 1.1v (1.096/1.104 shown in cpuz)
-dram 1.36v
-pch 1.058v
-imc 1.151v
-cpu_pll 1.8v
-dram_vtt 0.68v
*ram
-timings 7.8.7.24
-frequency 1442mhz
-dram:fsb ratio 4:1
*temperatures
idle 39°c\\load 59°c

i did 3dmark 06 & vantage tests with those settings ...and my prime95 blend test has also been runing with those settings for the past 4hours without errors ..ill keep it runing for 4more hours, and raise imc a little if it fails and try again .... what do u guys think, am i doing it right so far?
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
post #2 of 36
why are you stopping at 3.6?? Also please fill this in:
http://www.overclock.net/specs.php
Blue Steel
(18 items)
 
HTPC
(12 items)
 
Macbook
(13 items)
 
CPUMotherboardGraphicsRAM
i7 860 MSI P55-GD80 Gigabyte GTX 560Ti 1gb Mushkin Enhanced Blackline 1600 CAS 7 4gb 
Hard DriveHard DriveOptical DriveCooling
Samsung F3 1tb Samsung 830 64Gb Lite-On Blu-Ray Player Cooler Master Hyper 212+ 
OSMonitorMonitorKeyboard
Windows 7 Home Premium x64 Acer S231HLBID 23" Asus VW193DR 19"  Razer BlackWidow 
PowerCaseMouseAudio
Rocketfish 900W HAF 912 Logitech M500 Asus Xonar DG 
CPUMotherboardGraphicsRAM
i5 760 Asus P7P55D-E Pro XFX 5570 Corsair XMS3 2x1gb 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 640Gb HP DVD1260 Cooler Master GeminII S524 Windows 7 Enterprise x64 
MonitorPowerCaseMouse
Vizio 32" 1080 Corsair 650TX Silverstone LC13B-E Droid X2 
CPUGraphicsRAMHard Drive
2.4 GHz Intel Core 2 Duo GMA X3100 4GB DDR2 667 MHz 120 GB 
Optical DriveOSMonitorCase
MATSHITADVD-R UJ-867 Mac OS X 13 Macbook 
Mouse
Microsoft Arc 
  hide details  
Reply
Blue Steel
(18 items)
 
HTPC
(12 items)
 
Macbook
(13 items)
 
CPUMotherboardGraphicsRAM
i7 860 MSI P55-GD80 Gigabyte GTX 560Ti 1gb Mushkin Enhanced Blackline 1600 CAS 7 4gb 
Hard DriveHard DriveOptical DriveCooling
Samsung F3 1tb Samsung 830 64Gb Lite-On Blu-Ray Player Cooler Master Hyper 212+ 
OSMonitorMonitorKeyboard
Windows 7 Home Premium x64 Acer S231HLBID 23" Asus VW193DR 19"  Razer BlackWidow 
PowerCaseMouseAudio
Rocketfish 900W HAF 912 Logitech M500 Asus Xonar DG 
CPUMotherboardGraphicsRAM
i5 760 Asus P7P55D-E Pro XFX 5570 Corsair XMS3 2x1gb 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 640Gb HP DVD1260 Cooler Master GeminII S524 Windows 7 Enterprise x64 
MonitorPowerCaseMouse
Vizio 32" 1080 Corsair 650TX Silverstone LC13B-E Droid X2 
CPUGraphicsRAMHard Drive
2.4 GHz Intel Core 2 Duo GMA X3100 4GB DDR2 667 MHz 120 GB 
Optical DriveOSMonitorCase
MATSHITADVD-R UJ-867 Mac OS X 13 Macbook 
Mouse
Microsoft Arc 
  hide details  
Reply
post #3 of 36
Thread Starter 
Ok now i see why this could be a wrong approach...
once i overclock even more and get errors i dont know what voltage to raise
imc or cpu ..the idea was only to raise imc when things get unstable but now i see thats wrong ...cuz at bigger frequencys ill probably need higher vcore voltage

So i decided ill start all over again with different approach

gonna lower cpu multiplier way down to first see what imc voltage i need for 200/210 bck ....and then ill continue with that voltage from where i stopped now (180x20) ..and then ill only be raising cpu voltage

Is this ok?
or will i need to raise IMC voltage because of higher cpu frequency aswell?
Im confused ...am i waisting time doing this? or should i just continue with my old approach (180x20) and raise both cpu&imc voltage?
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
post #4 of 36
Don't forget to brush up on Phase Locked Loops to further understand problems that may arise at higher clocks.

Here is some more info on the Phase Locked Loop voltages. Whether you need higher or lower value, I cannot say as all CPUs vary as well as motherboard quality may vary from one to another even if it is the same model. Let me explain.

The operation of a phase locked loop, PLL, is based around the idea of comparing the phase of two signals. This information about the error in phase or the phase difference between the two signals is then used to control the frequency of the loop.

To understand more about the concept of phase and phase difference, first visualise a radio frequency signal in the form of a familiar x-y plot of a sine wave. As time progresses the amplitude oscillates above and below the line, repeating itself after each cycle. The linear plot can also be represented in the form of a circle. The beginning of the cycle can be represented as a particular point on the circle and as a time progresses the point on the waveform moves around the circle. Thus a complete cycle is equivalent to 360 degrees. The instantaneous position on the circle represents the phase at that given moment relative to the beginning of the cycle.

To look at the concept of phase difference, take the example of two signals. Although the two signals have the same frequency, the peaks and troughs do not occur in the same place. There is said to be a phase difference between the two signals. This phase difference is measured as the angle between them. It can be seen that it is the angle between the same point on the two waveforms. In this case a zero crossing point has been taken, but any point will suffice provided that it is the same on both.

When there two signals have different frequencies it is found that the phase difference between the two signals is always varying. The reason for this is that the time for each cycle is different and accordingly they are moving around the circle at different rates. It can be inferred from this that the definition of two signals having exactly the same frequency is that the phase difference between them is constant. There may be a phase difference between the two signals. This only means that they do not reach the same point on the waveform at the same time. If the phase difference is fixed it means that one is lagging behind or leading the other signal by the same amount, i.e. they are on the same frequency.

A phase-locked loop is used to set a frequency in such a manner that it matches a reference frequency produced by a reference oscillator. The match must be so accurate that the phase shift between the two frequencies does not drift. Phase locked loops (PLLs) are utilized by electronic devices to generate clock signals from a reference signal. The generated clock signal may be at the same frequency as the reference clock signal or at a fractional or multiple frequency of the reference clock signal. The generated clock signal typically has a predetermined phase relationship with the reference clock signal. Phase-locked loop (PLL) integrated circuits produce an oscillator frequency output which matches an input frequency signal. A typical PLL may include a phase-frequency detector, a charge pump, and a voltage-controlled oscillator (VCO). A phase locked loop circuit operates by producing an oscillator frequency to match the frequency of an input signal. The phase frequency detector compares an input or system clock with an output clock and provides clock control signals to the charge pump. The charge pump adds or subtracts charge to a filter capacitor based on the clock control signals and generates a control voltage that controls the frequency of the VCO. Another block may be provided to buffer and divide or multiply the output clock, which is fed back to the PFD for comparison with the system clock. Phase-locked loops are widely used in digital electronics, signal telemetry, and communications applications. Phase Locked Loop (PLL) circuits may be used for frequency control. Many applications require phase-locked loop (PLL) circuits which will work with high frequencies. PLL circuits may be configured as frequency multipliers, demodulators, tracking generators or clock recovery circuits.

tl;dr - adjusting PLL voltages will help keep sin waves in sync of the actual clocks and the clock generator.
Warranty Void
(13 items)
 
  
CPUMotherboardGraphicsHard Drive
i3 530 @ 4.440 Gigabyte P55A UD3 GTX 470 40GB Maxtor IDE Raid 0, 1TB SSD 
Optical DriveOSMonitorKeyboard
Sony Optiarc DVDR/CDR SATA Windows 7 Pro X64 Acer 23" 1080P ABS M1 
PowerCaseMouseMouse Pad
Cooler Master 600 HAF X9 Logitech G500 desktop 
  hide details  
Reply
Warranty Void
(13 items)
 
  
CPUMotherboardGraphicsHard Drive
i3 530 @ 4.440 Gigabyte P55A UD3 GTX 470 40GB Maxtor IDE Raid 0, 1TB SSD 
Optical DriveOSMonitorKeyboard
Sony Optiarc DVDR/CDR SATA Windows 7 Pro X64 Acer 23" 1080P ABS M1 
PowerCaseMouseMouse Pad
Cooler Master 600 HAF X9 Logitech G500 desktop 
  hide details  
Reply
post #5 of 36
Thread Starter 
ok that was way 2much info
(i even had to use google translate for some of those words)

u were talking about cpu_pll voltage, and manually setting it for best performance
u dont know if i should raise/lower it cuz it depends from chip to chip nad mobo...
well heck i dont know either, and most of this guides ive read says i should just keep it on auto or set it to 1.8-1.9v ...so i think ill just leave this setting on auto until i get more knowledge of it (like i mentioned im a noob when it comes to overclocking, all i did so far was some OCing of athlonXP back in the days ..and that was easier and had less variables to worry about)

but to get back on topic ...yesterday i was searching for imc voltage needed to get 200-210bck ...i started with 1.166v and i was uping bck from 160-210, raising it for 5 each time
and again that voltage got me all the way to 210 bck (i tested it with blend test 2hours, intel burn standard 50loops, intel burn high 20loops)
I didnt even try to get higher bck since i probably wont need it (if i will ill get back to it later)
..and since i didnt get any errors with that voltage i even tryed to lower it so ive set it to 1.1527v and tryed again with 210bck ...again no errors
(oh and i was using cpu multiplier 14 and 1.1v cpu voltage while testing this)

and since 1.1527v seemed low enough for me ..and i didnt want to waste another 4hours trying with even lower voltage ... I used this voltage to continue my overclocking from the 1st post (did i make mistake here? should i be trying to see if its stable on lower voltage?)

current settings:
-3611mhz(180.6x20)
-cpu 1.125v (cpuz reading is 1.128v)
-imc 1.1527v (rctweakit reading is 1.158/1.164v)
everything else is same as in the first post

I left my computer runing prime blend test over night (ran for 5hours without errors),
intel burn standard 50 loops, intel burn high 20 loops ..no errors

max temp i got was while runing intelburn test was 66°c ...i forgot what temperature i got while runing prime but it was a bit lower i think somewhere around 60

So this is it for now ...ill continue with my OCing later on this day so more updates will come ...comments are wellcome
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
post #6 of 36
Thread Starter 
heres a little update



had to raise a voltage a little

ok two more questions ..how accurate are those coretemp/realtemp temperatures? RC tweak it shows lower temperatures ..and they also dont drop/raise as fast as in core/realtemp?

And i also noticed i can use 22 cpu multiplier ... how come nobody uses it? is this multiplier unique to 760?
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
post #7 of 36
Thread Starter 
And i give up on overclocking this cpu...

It runs so fricking hot and i dont know why
even very small voltage increase shoots my temperatures sky high

its amazing how far it goes with stock voltages... but those temperatures i dont know, cant figure it out ..i even bought one of the best air coolers out there to get this puppy to 4Ghz ...but **** those temperatures are killing me ..i dont want it to run higher then 70°c

so in the end.. i settled with this settings:
(i had best speed/voltage/thermal ratio with this settings)

3516Mhz(167x21)
cpu core: 1.1625v
cpu vtt: 1.113v
dram: 1.378v





Anyone got ideas what else i could do?
otherwise this is the end of the road for me
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
post #8 of 36
Thread Starter 
bump
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
post #9 of 36
Your CPU temp is probably a few *c lower than core temp, so don't worry too much (i think? idk). Also, how can you get such poor temps with a D14? Are you only using 1 fan?.. try reseating/reapplying TIM if you get bad temps.
    
CPUMotherboardGraphicsRAM
i5-2500k @ 4300Mhz Biostar TP67XE Waiting to buy a new one 8GB 1600Mhz 7-8-7-21 1T 
Hard DriveCoolingOSMonitor
Samsung 840 SSD [250GB] Antec H20 620 Windows 7 x64 Acer S242HL 
PowerCase
Thermaltake 775W NZXT Phantom [White] 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i5-2500k @ 4300Mhz Biostar TP67XE Waiting to buy a new one 8GB 1600Mhz 7-8-7-21 1T 
Hard DriveCoolingOSMonitor
Samsung 840 SSD [250GB] Antec H20 620 Windows 7 x64 Acer S242HL 
PowerCase
Thermaltake 775W NZXT Phantom [White] 
  hide details  
Reply
post #10 of 36
Thread Starter 
idk why Im geting so bad temperatures ...its troo that this is my first system ive put together ..but ive read tutorials on how to mount this heatsink and watched some videos of it ...and I already tryed to remount it ..and it didnt help with my temperatures
(unless i ****ed up and mount it wrong twice)

But then again ...when im runing intelburn test, if i touch the ribs on heatsink they hardly get warm at all? maybe temperature sensors are ****ed up? i really dont know
(if i connect my laptop to the motherboard(via rog connect) temperatures shown in RC-tweakit are way lower? +they dont raise/drop instantly when i start intelburn(like in realtemp,coretemp),but they go up and down slowly

The cpu itself seems to be overclocking well ..problem are the temperatures ..so far this heatsink has been a big disappointment for me ...i wish id chose corsair h50/70 over it ...and it would probably fit better in my matx case aswell :<

and yes im using both fans on my d14
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
antec mini
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 760 Asus maximus lll gene Asus 5850 directCU top gskill eco 
Hard DriveMonitorKeyboardPower
samsung spinpoint f3 1Tb dell 2209wa Logitech UltraX Keyboard Corsair hx650w 
CaseMouseMouse Pad
Antec mini p180 logitech mx518 SteelSeries S&S mousepad 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › i5 760 noob overclocking :)