I7 920 Overclock Problems

[superdeka]

hi to all!
I am doing my overclock for the very first time in my life (newbie!!), and I wold like to check with you my settings, temps, voltages etc, as I found some problems doing it.

My configuration is:

- CPU: i7 920 with Noctua NH-U12P SE1366
- MB: ASUS P6T
- RAM: 3x2 GB Kingston Value DDR3 1333 Mhz
- VIDEO: Point of View GTX260
- CASE: Antec P180b

After trying to follow online guides I found about OC on i7 920 I finished up with next OC settings that works - bad or good, I am asking if somebody could tell me that!!

CPU ratio 20
BCLK 180
PCIE 101
DRAM freq AUTO
UCLK freq AUTO
CPU Voltage 1.2625
CPU PULL Voltage 1.8
QPI/DRAM Core Voltage 1.25
DRAM BUS Voltage 1.5 (as written on my RAM)
everything else is on AUTO

One thing is really strange: I tried to change my DRAM freq to 1083 (first value available), but I always had to leave my UCLK frequency to AUTO, otherwise I was getting OC error no matter which value I used... This happens also when I tried to push DRAM freq to some other value, I had to leave UCLK on auto always. So I left both DRAM and UCLK on auto!
I would like to know on what frequency is my memory running in this case?

I tested everything with Prime95 and CoreTemp and it was stabile for 10-12h.
The temperatures were 80-85 according to CoreTemp and 89 according to Asus mobo program AI SUITE. What do I have to consider, Coretemp or AI SUITE? And after all, are these temps OK or they are too high considering my cooler and my case?

Last thing I would like to know is: do I need some other settings in my BOIS, that could work better with my configuration - I am using DDR3@1333Mhz RAM, @ 1.5 DRAM Voltage - so maybe there are some different settings that could lower my core temperature (for QPI/DRAM Core Voltage or DRAM BUS Voltage or something else)

I Hope somebody will find time to check these settings and to give me some answers
Best regards to all!!

and sorry for my bad English

 

[Boulard83]

Welcome to OCforum

 

[superdeka]

Welcome to OCforum

Thanks Boulard83!
maybe you'll know the answer to my problems now lol!!
anyway, I am still testing my settings and I think that temps are going too thigh (76-80 with CoreTemp and 83 with AI SUIT)

Hope that some good soul out there will know what should I do!!!

 

[hydrata]

Could you also please list your ambient temps?

 

[superdeka]

Could you also please list your ambient temps?

It's around 26 degrees in my room.

 

[Boulard83]

Thanks Boulard83!
maybe you'll know the answer to my problems now lol!!
anyway, I am still testing my settings and I think that temps are going too thigh (76-80 with CoreTemp and 83 with AI SUIT)

Hope that some good soul out there will know what should I do!!!

Sry but i dont own an I7. so i cant really help you with your I7 OC. but this site is better. Im not telling Tom's is a bad forum, but youll have better I7 OCer here. Hope they can help you.

If you provide the correct information, full system spec, they can help you ALOT.

 

[superdeka]

Boulard83, thank you very much!
I appreciate your help!
and yep, Tom's forum is very good one, but maybe I'll find my answers here.
best regards!
superdeka

 

[corpsejockey]

uncore (uclk) must be 2 x the dram frequency for stability.
Example:
uclk = 2666
dram = 1333
or
uclk = 3200
dram = 1600

You can find out what your current ram clocks are by installing cpu-z and checking the memory tab.
You may find that you need a little more dram voltage at higher speeds

 

[Voidn]

And you should be setting the Dram freq with the Dram Multiplier. So:

mhz = 20cpu x 180bclk = 3.8ghz
Dram = 180bclk x 6 = 1080. Or 180bclk x 8 = 1440. (you could try 19cpu for speeds closer to 1333)
uncore = 2 x (6xdram) = 12x or 2 x (8xdram) = 16x.
Set QPI link to x36
You might need to set vDimm/Dramv closer to 1.64 for stability at higher mem speeds.

I would leave the PCIe at auto/defaults. No real need to change those.

these look good.
CPU Voltage 1.2625
CPU PULL Voltage 1.8
QPI/DRAM Core Voltage 1.25

If your temps are above 80c in prime you should probably work on better cooling or back down the overclock to 3.6 or 3.7 which will allow you to lower the vcore and qpi core.

 

[Godzilla]

mhz = 20cpu x 180bclk = 3.8ghz

correct me if i'm wrong but 20 x 180 = 3.6Ghz, not 3.8

 

[jcniest5]

Set DRAM Voltage to 1.65V also.

 

[Brolloks]

Ok, if you have a D0 chip then you can jump ahead a bit.

Eable turbo so you have access to the 21 multi, now set base clocks on 193 so your target CPU speed will be 4.05 Ghz.
Set vcore at 1.3v, enable LLC, set vdimm at 1.65v and leave ALL other settings at auto, boot and test for stability.

 

[Voidn]

correct me if i'm wrong but 20 x 180 = 3.6Ghz, not 3.8

blerg, I swear I even used a calculator. .

 

[superdeka]

Hi to all!!
Thank you very much for the answers!!!
Right now am doing some tests with setting you told me
I have few questions in the meanwhile:
- I should consider the temps from CoreTemp as correct temps, and not those from AI SUIT right?
- On my memory is written 1.5V.... is it safe to push my vDram to 1.64 as you told me?
- When I start CoreTemp I had 43-48 in idle and right now I am reading 74-79 in full load. Are these temps ok or they are a little bit high?

Buy the way, my i7 is C0/C1 revision as written in Cpu-Z

Thank you again guys!!!

 

[superdeka]

actually, in idle I have 47-51

 

[Brolloks]

Hi to all!!
Thank you very much for the answers!!!
Right now am doing some tests with setting you told me
I have few questions in the meanwhile:
- I should consider the temps from CoreTemp as correct temps, and not those from AI SUIT right? Use Coretemp or Realtemp for more accurate core temperatures
- On my memory is written 1.5V.... is it safe to push my vDram to 1.64 as you told me? Up to 1.65 is perfectly safe, even by Intel stanmdards and their max settings are pretty conservative
- When I start CoreTemp I had 43-48 in idle and right now I am reading 74-79 in full load. Are these temps ok or they are a little bit high? Is that at stock voltage or at 1.3v?

Buy the way, my i7 is C0/C1 revision as written in Cpu-Z In that case you will need around 1.4v to get to 4 Ghz, unless you have a very good C0 chip

Thank you again guys!!!

 

[superdeka]

hi again,
I've been trying the different settings all day/night long (always around those you guys told me) to OC it to 3.6Ghz
Here what I found that works fine (no crash or blue screens ), but still have problems with high temps though - 44/51 Idle and 77/84 full with Prime:

Cpu ratio 20
Bclk freq 180
PCIE freq 100
Dram freq 1083mhz (I didn't try higher freq yet)
Uclk freq 2165 mhz
QPI link data rate 6496 MT/s

CPU voltage 1.24375
CPU pull voltage 1.8
QPI/Dram core voltage 1.25
Dram bus voltage 1.64

everything else is on AUTO

As you can see I tried to set some lower value for vCore to get lower temps and 1.24375 is the lowest one I was able to get, but the temps are still too high, don't you think? Any idea where could be the problem?
I am trying to get only 3.6ghz, don't you think it's possible with lower temps, with my cooler and my case???
thanks again!!

 

[Boulard83]

Nice job milord ! keep going !

 

[jcniest5]

OP, with only the stock cooling, you can expect to run hot if you OC at all. If you just have the stock cooler, your temp sounds about right. If you don't feel comfortable running with that type of temp, I suggest you go and buy yourself a good aftermarket cooler (Thermalright Ultra 120 Extreme, True Black, Scythe Mugen 2, Megahelems, Xingtek, etc...) These will all work much, much better than your stock cooler. Even on a True Copper, when I run mine up to 4.305Ghz (21x205 @1.30v) my temps still go way up into the 80s, even 90s!

What you may want to keep in mind is that the i7 really just run much, much hotter than others. You won't have any problem, though, if it's below 95. Of course when you run your system normally, it's never being stressed to that level, so you rest your mind about the high temp you are seeing when you run these CPU stressing programs. On normal use, no PC will ever get stressed that much.

 

[superdeka]

OP, with only the stock cooling, you can expect to run hot if you OC at all. If you just have the stock cooler, your temp sounds about right. If you don't feel comfortable running with that type of temp, I suggest you go and buy yourself a good aftermarket cooler (Thermalright Ultra 120 Extreme, True Black, Scythe Mugen 2, Megahelems, Xingtek, etc...) These will all work much, much better than your stock cooler. Even on a True Copper, when I run mine up to 4.305Ghz (21x205 @1.30v) my temps still go way up into the 80s, even 90s!

What you may want to keep in mind is that the i7 really just run much, much hotter than others. You won't have any problem, though, if it's below 95. Of course when you run your system normally, it's never being stressed to that level, so you rest your mind about the high temp you are seeing when you run these CPU stressing programs. On normal use, no PC will ever get stressed that much.

thanks jcniest5,
I am using Nouctua NH-U12P SE1366 as my cooler, so that's the reason I was worried about my temps, as I saw that they shouldn't go over 80 degrees for 3.6 (more-less). Another thing is that others can get higher OC with same or lower temps using more less same coolers, so I though maybe there is a problem with my settings?