Overclock.net › Forums › Intel › Intel - General › 3770k very first overclock and looking for advice / feedback
New Posts  All Forums:Forum Nav:

3770k very first overclock and looking for advice / feedback

post #1 of 12
Thread Starter 
Good morning everyone! First time poster and overclocker! smile.gif

And my apologies if I didn't post in the right section smile.gif

I recently built a brand new rig from the ground up a month or two ago (for gaming) and although I am not new at all with computers I am when it comes to overclocking.

First things first I guess, rig goes as follow:

CPU: i7 3770k (overclocked at 4.5 GHz for now with manual/locked 1.29v)
MOBO: Asus P8Z77-V Pro
GPU: EVGA GTX Titan SC @ 1175 MHz
RAM: G.Skills Ripjaws 16 gigs (2x8) @ 1866 MHz
PSU: Corsair ATX 1050w Gold Certified

So after reading for 2 weeks over the net on overclocking the 3770k and how it works I finally decided to give it my first shot, although I'm nervous about the whole thing and unsure of my moves.

So far (as indicated above) I pushed my CPU to 4.5 (BLCK 100 With 45 Multiplier) while keeping pretty much everything on default in my BIOS (I read it's always good to start with a very conservative OC like that). The only other things I changed so far is the Speedstep (disabled) and the voltage (had to put it on manual). I had to disable Speesdstep and put the voltage to manual because from what I saw by only clocking the CPU to 4.5 GHz the system would constantly feed it 1.4-1.45v when reaching those clocks (auto voltage) and I didn't feel comfortable/safe with that. I know you can play with that with the ''offset'' but quite frankly even after reading on it a lot I'm still not sure how the whole thing works.

So yeah disabled Speedstep to get a fixed 4.5 GHz and after many trials and errors it seems like I found the right voltage at 1.29v (everything stable under Prime95, Folding, IBT, etc). But isn't that still a bit high? I mean I constantly see preople on the net and here reporting that they overclocked to 4.5-4.8 with even lower voltage like 1.2-1.25, even saw a guy reach 4.5 with only 1.8v o_O

So what did I miss here exactly? Do I have a bad chip to only be stable at this voltage or is there something in the BIOS I should work on/enable/disable?

If it can help I took pictures of my BIOS setup; any help would be really appreciated!! smile.gif

Aside from that I'm having a LOT of fun doing that, but that's until something blows up of course lol tongue.gif







Edited by Urobulus - 5/16/13 at 6:44am
post #2 of 12
try giving these a look see:
Ivy Bridge Overclocking Guide ► Asus Motherboards
and
Asus Z77 Series Information Thread (drivers, BIOSes, overclocking, reviews) **UPDATED 4/22**

btw, just giving a quick look see, you have XMP enabled for the RAM? and the Load Line Calibration might need tweaked. to what i can't say ATM but those guides will help.
loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
  hide details  
Reply
loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
  hide details  
Reply
post #3 of 12
Thread Starter 
Saw that guide already but thanks for the tip smile.gif

Like I said even after reading multiple guides and forums/articles I'm still a bit unsure about some stuff, especially that offset and voltage thingy.

For now XMP is not enabled; my ram is manual at 1866 MHz.

Oh and forgot to say also that my temps are okay so it's not a concern for me right now (which is why I never mentioned it yet): chip is cooled by a Zalman CNPS9900MAX-B orb... 37-40 idle and never passed 80 under full load (Prime95/Aida64 and such) aside from Intel Burn Test Very High/Maximum Preset (never got over 87 degrees).
Edited by Urobulus - 5/16/13 at 7:23am
post #4 of 12
Yeah it looks like you're on the right track. 1.29 V load is reasonable for the overclock your going for. Sure, there are some that get lower load voltage, but it just comes down to the luck of the draw. Also, speaking of the load voltage, are you getting this from your BIOS setting or something like CPUz? I ask because typically what you set in the BIOS is not what you actually get when you load the chip as things like load line calibration will contribute to the final voltage applied to the chip.

The offset voltage is the best method for IB. Bascically, it will scale the voltage up and down with the clock speed when you enable speed step. What's nice about this is it reduces the stress on your CPU when you're idle but you still get the benefit of a nice overclock when you need it.

So the idea behind the offset voltage is that every multiplier has a VID. The VID is simply how much voltage the CPU thinks it needs at that speed. So, as an example, let's say the VID for 45x is 1.250V. But your CPU needs 1.290 V to be stable, you would set the offset voltage to +0.040V to make up the difference.

So the next step for you would to be to load up CPUz and get the load voltage reading. From there, turn on speed step and start tweaking your offset voltage. Start the offset with something small, say +0.010 V and see what that gives you under load. From there just keep tweaking that offset until you get back to the load voltage your aiming for. smile.gif
post #5 of 12
Thread Starter 
Alright if you guys are saying that 1,29v is not something to worry about and is normal then I guess I won't bother about it anymore... Just sucks that I can't get it lower at 4.5GHz when there's plenty of people running it with less than 1.25v... I got unlucky it seems with the chip lottery and got a crappy one... frown.gif

For the voltage I only validate it with CPU-Z and Aida64 (they are always both reporting the same)... The thing also that confuses me is that even though I set it at 1.29 fixed in the BIOS when I check CPU-z and Aida64 they keeps reporting to variating voltage of 1.288 and 1.296, especially under stress testing...

i'd like to use Speestep too so the CPU is not constantly locked at 4.5 like it is right now (but that was to test and get what I need voltage-wise for this overlock to be stable) so I will try tonight to see how I could adjust the voltage for that... Guess I will need to go back in the BIOS and reset the Vcore voltage to Auto and then enter a small variation in the offset (negative one) like you mentioned?
post #6 of 12
here:

i have a negative offset of 0.120 the difference between the VID (which is what the CPU thinks it needs) in core temp and what my reading in cpu-z is what it is actually getting.


now the 0.1801 (0.0601) difference is also the vdroop.

ah, its covered in detail in the asus overclocking guide . . . thumb.gif
loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
  hide details  
Reply
loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
  hide details  
Reply
post #7 of 12
Thread Starter 
Ok let me get this straight to make sure I understand here regarding Speedstep and offset voltage: when I'm back home tonight what I should do is keep my voltage manual at 1.29v and then load Core Temp so I can get the VID. Then take my manual voltage of 1.29v minus the VID and it will give me the offset value.

Then go back in BIOS, re-enable Speestep and Auto Voltage, and then enter the offset value I got above. So when my CPU is idle it will downclock itself to 1.6GHz with the correct voltage and when working will upclock itself back to 4.5 GHz with the correct voltage this time, which shouldn't be 1.4v like the computer decided before but 1.29v, which is the correct voltage for a stable overclock at this GHz.

Did I miss something here or did I get everything?

And also if I may ask another question: why is my voltage constantly moving at 1.288 and 1.294 (CPU-Z and Aida64) no matter if it's idle or working (ie: Prime95) even though I set it manual in the BIOS at 1.29?
Edited by Urobulus - 5/16/13 at 10:27am
post #8 of 12
Quote:
Originally Posted by Urobulus View Post

Ok let me get this straight to make sure I understand here regarding Speedstep and offset voltage: when I'm back home tonight what I should do is keep my voltage manual at 1.29v and then load Core Temp so I can get the VID. Then take my manual voltage of 1.29v minus the VID and it will give me the offset value.

Then go back in BIOS, re-enable Speestep and Auto Voltage, and then enter the offset value I got above. So when my CPU is idle it will downclock itself to 1.6GHz with the correct voltage and when working will upclock itself back to 4.5 GHz with the correct voltage this time, which shouldn't be 1.4v like the computer decided before but 1.29v, which is the correct voltage for a stable overclock at this GHz.

Did I miss something here or did I get everything?

And also if I may ask another question: why is my voltage constantly moving at 1.288 and 1.294 (CPU-Z and Aida64) no matter if it's idle or working (ie: Prime95) even though I set it manual in the BIOS at 1.29?

Yup you got it. thumb.gif

Some variation in the voltage like that is normal. I can't say for sure but it's likely because of some play in the voltage regulation circuitry and some error/tolerance in the software measurement. Either way, nothing to be overly concerned about in your case. smile.gif
post #9 of 12
Thread Starter 
Alright I will re-enable Speedstep tonight and auto-voltage with an offset when I find my value. I will feel better with my chip clocking itself at 4.5 GHz only when needed and also raising its voltage accordingly WHEN needed... I know so far from what I saw when Speedstep was enabled with auto-voltage that downlocked at 1.6 GHz (when idle) it was only drinking 1.01-ish volts...

Anyway will do all that tonight: if my computer explodes and I loose half of my face in the process it's on you for confirming me the WRONG instructions...

tongue.gif
post #10 of 12
Quote:
Originally Posted by Urobulus View Post

Alright I will re-enable Speedstep tonight and auto-voltage with an offset when I find my value. I will feel better with my chip clocking itself at 4.5 GHz only when needed and also raising its voltage accordingly WHEN needed... I know so far from what I saw when Speedstep was enabled with auto-voltage that downlocked at 1.6 GHz (when idle) it was only drinking 1.01-ish volts...

Anyway will do all that tonight: if my computer explodes and I loose half of my face in the process it's on you for confirming me the WRONG instructions...

tongue.gif

LOL! biggrin.gif
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel - General
Overclock.net › Forums › Intel › Intel - General › 3770k very first overclock and looking for advice / feedback