I7 920 Temps

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08-21-2009, 12:47 AM
Wishmaker

I7 920 Temps

First of all I would like to say hello to everyone. I've been a lurker for quite some time but I finally joined. Back to our apples now. I have the following system :

Quote:

MOBO: Gigabyte U3DR
CPU: I7 920@ 3.6 GHz
COOLER: Noctua NH-U12P SE1366 + AS5
RAM : 6GB TRI KIT G-SKILL DDR3 CL7
Video: XFX ATI 4890 XXX 1GB DDR5 GPU: 1 GHz / MEM: 4 GHz
HDD: 1 * 500GB WD Caviar+RAID 0 2 * 1 TB SAMSUNG SPINPOINT
Optical: Sony Optiarc Labelflash
Audio : X-FI TITANIUM
PSU: Corsair CMPSU-750TX
Case: Antec 902

Yesterday, I decided to run some tests to see how my Noctua copes when the I7 is running a higher frequency than normal. To my amazement, the software used to check temperatures and frequency had some different results.

Real Temp read one temperature and one frequency, Everest read the same temperature like Real Temp but a different frequency and the Gigabyte software read a different temperature but the same frequency as Everest.
http://i266.photobucket.com/albums/i...Truth/th_1.png
http://i266.photobucket.com/albums/i...Truth/th_2.png

What should I believe? Frequency wise, Everest and the Gigabyte software are right. Real Temp fails to report proper frequency.

My test lasted 45 minutes and I made sure to set Prime95 for highest TDP. My room temperature was 26 degrees, 33 outside.

Moreover, is my Noctua Push-Pull behaving the way it should? I have an impression it does not cool the I7 properly at this frequency.

Cheers,

Wish ...
08-21-2009, 01:50 AM
esdxx

That is too high CPU votlage for your overclock mate, therefore 80C on cores....You should be able to get atleast 4GHz with that vcore.

About frequency, you should believe whatever BCLK your put in your BIOS (as you already figured). Not sure why realtemp reporting wrong bclk, maybe you should post this in official RT thread here in intel forums.
08-21-2009, 02:04 AM
Wishmaker

Quote:

Originally Posted by esdxx

That is too high CPU votlage for your overclock mate, therefore 80C on cores....You should be able to get atleast 4GHz with that vcore.

About frequency, you should believe whatever BCLK your put in your BIOS (as you already figured). Not sure why realtemp reporting wrong bclk, maybe you should post this in official RT thread here in intel forums.

Thank you very much for the reply. I will drop the voltage as soon as I get home and will run Prime95 again. Will get back to you. :up:
08-21-2009, 07:57 AM
orig3n

yeah you should be able to do 3.4ghz with very low voltage 1.3 should usually get you around the 4-4.2ghz mark on a decent-good chip :)
08-21-2009, 12:12 PM
donmarkoni

What are you saying people?!?! :eek: 1.328V is not too much for C0! I use 1.375V for 4GHz and 1.425V for 4.2GHz. With watercooling I keep it ~70°C / ~80°C respectively @ 25°C room temp.
Although, I agree that those are high temps for 3.6GHz even with aircooling.

@Wishmaker: try remounting/reseating your cooler, and check how evenly dispersed is AS5 under pressure. Think about watercooling. :yepp:
08-21-2009, 01:26 PM
Wishmaker

Quote:

Originally Posted by donmarkoni

What are you saying people?!?! :eek: 1.328V is not too much for C0! I use 1.375V for 4GHz and 1.425V for 4.2GHz. With watercooling I keep it ~70°C / ~80°C respectively @ 25°C room temp.
Although, I agree that those are high temps for 3.6GHz even with aircooling.

@Wishmaker: try remounting/reseating your cooler, and check how evenly dispersed is AS5 under pressure. Think about watercooling. :yepp:

I was afraid you were going to say that but shouldn't I wait 200 hours for the AS5 to come into its own? :(. I gotta take out everything and to be frank as much as people praise teh Antec 902, space to work inside is barely there :rofl::rofl:.
08-21-2009, 06:08 PM
orig3n

Quote:

Originally Posted by donmarkoni

What are you saying people?!?! :eek: 1.328V is not too much for C0! I use 1.375V for 4GHz and 1.425V for 4.2GHz. With watercooling I keep it ~70°C / ~80°C respectively @ 25°C room temp.
Although, I agree that those are high temps for 3.6GHz even with aircooling.

@Wishmaker: try remounting/reseating your cooler, and check how evenly dispersed is AS5 under pressure. Think about watercooling. :yepp:

noooo just saying that it shouldnt take that much voltage to do 3.4ghz :)
08-22-2009, 02:32 AM
Wishmaker

Quote:

Originally Posted by orig3n

noooo just saying that it shouldnt take that much voltage to do 3.4ghz :)

You are right. I reduced it from 3.6 to 3.4 lower the voltage to 1.8 and after 1 hour of prime it did not go higher than 62 degrees :up: This seems quite reasonable to me or I really need to take everything out again :(.
08-22-2009, 03:03 AM
esdxx

Quote:

Originally Posted by donmarkoni

What are you saying people?!?! :eek: 1.328V is not too much for C0! I use 1.375V for 4GHz and 1.425V for 4.2GHz. With watercooling I keep it ~70°C / ~80°C respectively @ 25°C room temp.
Although, I agree that those are high temps for 3.6GHz even with aircooling.

@Wishmaker: try remounting/reseating your cooler, and check how evenly dispersed is AS5 under pressure. Think about watercooling. :yepp:

Even C0 shouldnt take that much for 3.4GHz.

@Wishmaker

I believe you mean 1.18V :confused: (not 1.8V - your CPU would be a toast lol). 61C is pretty decent under load, i dont think there is major problem with your heatsink. Reseating might buy you 1-2C, but not more IMHO.

Now you might wanna get some better overclock, i'd say unless you are under 80C (full load with linx/prime), you are fine.
08-22-2009, 05:13 AM
SimpleTECH

Try the latest version of Real Temp. I think it might read your correct CPU frequency (if it is indeed 172x21).
08-22-2009, 05:52 AM
Wishmaker

Quote:

Originally Posted by esdxx

Even C0 shouldnt take that much for 3.4GHz.

@Wishmaker

I believe you mean 1.18V :confused: (not 1.8V - your CPU would be a toast lol). 61C is pretty decent under load, i dont think there is major problem with your heatsink. Reseating might buy you 1-2C, but not more IMHO.

Now you might wanna get some better overclock, i'd say unless you are under 80C (full load with linx/prime), you are fine.

You are right. It was rather early when I posted that :). 1.18 V is the value I was reffering to.

SimpleTech,

I am using the latest version and it seems to be working the way it should. What I dont understand is why the Gigabyte software shows absurd temperatures?? :eek::eek: