Sign in with
Sign up | Sign in
Your question
Closed

Core i7 920 at 3.8ghz temps ?

Last response: in CPUs
Share
March 16, 2009 5:43:16 PM

I have my I7 920 running at 3.8ghz with a cooler master v8 and have a couple questions I was hoping someone can help me with.

I was looking at average temps of people running this setup and found them to be all over the place. My average temp is 80c running prime95, using core temp and real temp programs for my reading. Is this too high? Im running this test setup outside of a case (should my temps be better inside a case? It will be in a Antec 900).

Lastly, running core temp and real temp apps only one core is riding high in the 80c range all the others are 76c and below, whats the safe way to average this?

More about : core 920 8ghz temps

March 16, 2009 6:00:53 PM

I have a 920 oc to 3.8 with a vigor monsoon and prime95 for 4 hours never gets over 68 all 4 cores.

you should be cooler then 80. measurements using coretemp 64 bit.

here a link from intel showing max safe temp being 67 and change.

http://processorfinder.intel.com/details.aspx?sSpec=SLB...

what voltage are you running that on?

i'll post here in a minute to tell you what voltage im at.

Hope this helps
March 16, 2009 6:01:51 PM

It sounds a little high to me for that cooler. Whats the core voltage? Mine at 3.8 is set to 1.37V. I have the zalman 9700, temps running prime95 with core temp stay under 65C after several hours. This is in my antec 900.
Related resources
March 16, 2009 6:14:08 PM

my voltage for proc at 3.8 is 1.30625. 190*20

ramm is corsair 1333 oc to 1520 @ 8-8-8-24 1.6 v

thats all the voltage adjusments i used.

vdroop with prime running is: 1.248 per cpu-z

idle normally around 38 c (give a degree or two)
March 16, 2009 6:46:46 PM

hey guys thanks for the replies! Well, I figured out the temperature issue, and it was my fault. Hyper threading was still on, at 3.8ghz and full load prime95 im at 69c on the highest core and 62c on lowest outside of case.

I guess the question is if I should keep HT on and lower my overclock or keep it off and keep a higher overclock. Ive been reading around and it looks like normal applications see performance increase with it on.
March 16, 2009 10:42:55 PM

hmm thats interesting, i keep ht on and have no problems.

I guess every chip is different though.

Good luck with your oc and enjoy :) 
March 17, 2009 2:14:09 AM

mine 3.7Ghz 185x20 on 1.29v
idle 40°c max load 72°c
room temp 26~33
March 17, 2009 2:15:17 AM

ops i'm using xigmatek s1284
March 17, 2009 3:46:58 PM

Ive read around, and though its not the norm HT enabled can cause up 10 10c difference in temperature. I have it disabled for now, I run 80c average at 3.8 with it on now and 68c avg with it off.. thats huge
March 17, 2009 3:55:05 PM

If it helps anyone, I was running at a 20x190 multiplier with a 1.325 voltage, I changed it to a 19x200 multiplier put my voltage to 1.275 and Im full load at a max of 61c, HT and Speedstep disabled.
a b à CPUs
March 17, 2009 8:50:15 PM

richard3i said:
If it helps anyone, I was running at a 20x190 multiplier with a 1.325 voltage, I changed it to a 19x200 multiplier put my voltage to 1.275 and Im full load at a max of 61c, HT and Speedstep disabled.


Heh, even AMDZone was able to get an i920 up to 4.0GHz at 1.4V - didn't check to see what temps they running. Look for the Asus P6T mobo review on the front page, if interested.
May 28, 2009 3:58:13 AM

Odd enough, Im bringing up this thread because I had my computer idling at stock speeds for sometime, I decided to get back into overclocking it and now when Ive come back to put in the same settings Im idling at 40C and when overclocked at 19x200 Im reaching 75-85C, what in the world has happened? Im using ARTIC SILVER 5 and I dont think the paste could have been ruined this quickly? Room temps are slightly warmer but not in any way that different.
May 29, 2009 1:44:35 PM

Well the i7 920 can burn 150w at stock speeds so the power consumption when overclocked is going to be somethine crazy. Also case ventilation makes a huge difference. I recently changed the air flow in my workstation because No2 Opteron was running 6c hotter than No1 Opteron even though there side by side. I swapped the cpu's and heatsinks around and no difference. It turned out the second cpu was getting the warm air from the first cpu and making it run hotter. I reversed the front case fans and installed some 120mm fans in the side to push cool air onto the cpu's and now there is only 1c difference.

The Opterons only use 65w and run very cool as it is but you might find this makes a big difference with the i7. Redo the heat paste, setup some extra fans and see what happens. BTW does the cpu cooler actually feel like it's reaching 80c. If you can hold your hand on the base or one of the heat pipes then it's either not running at 80c or the cooler is not doing it's job. Also try and get hold of a Thermalright Ultra-120. If the Thermalright can't keep it cool then nothing will.
July 1, 2009 12:10:52 AM

Hey guys. I think I actually have a cooling problem. I have an i7 920 @ stock 2.66ghz and im idling at about 40C with a Zalman 9700. Im seeing thats what you are all idling at with good OC's.

What tests are you doing with Prime95? I do the blend test and after an hour im reaching about 85C.

So i think something is wrong. Ive reseated my heatsink 4 times with no change in temperature. I even tried the stock heatsink at the surprisingly was only a few degrees warmer than my Zalman 9700.

Anybody got any ideas?
July 1, 2009 1:38:28 AM

decoyjoe said:
Hey guys. I think I actually have a cooling problem. I have an i7 920 @ stock 2.66ghz and im idling at about 40C with a Zalman 9700. Im seeing thats what you are all idling at with good OC's.

What tests are you doing with Prime95? I do the blend test and after an hour im reaching about 85C.

So i think something is wrong. Ive reseated my heatsink 4 times with no change in temperature. I even tried the stock heatsink at the surprisingly was only a few degrees warmer than my Zalman 9700.

Anybody got any ideas?

Which stepping? I was lucky enough to get a D0, it idles/loads at about 34C/66C at 4.0GHz. 1.264 vcore.

How's the airflow in the case? What's your core voltage at? What motherboard?

Sorry for all the questions, but they could all play a part.
July 1, 2009 2:46:24 AM

I have D0 stepping. I have good airflow as i have an Antec 900 two. core voltage is set to auto. Motherboard is a Gigabyte GA-EX58-UD3R. I have no idea why my temps are so high
July 1, 2009 2:54:09 AM

Check core voltage with cpu-z.
July 1, 2009 2:59:44 AM

The core voltage is either ~0.98 or ~1.20 depending on what speed its running at. I still have the one setting in BIOS enabled where it will down clock the CPU to 1.6ghz when its not being used.
July 1, 2009 3:04:15 AM

rcpratt said:
Which stepping? I was lucky enough to get a D0, it idles/loads at about 34C/66C at 4.0GHz. 1.264 vcore.

How's the airflow in the case? What's your core voltage at? What motherboard?

Sorry for all the questions, but they could all play a part.

And BTW are you using water cooling? Cuz how in the world are you getting those temps at 4.0ghz!!!???... I envy you! :) 
July 1, 2009 3:12:32 AM

Zalman 9900 in an Antec 900. As for your problem, I've got nothing. I have no idea why it would be running that hot.
July 1, 2009 3:14:53 AM

Is it possible that I have a bad CPU that runs too hot??.....Or do you think my heatsink is bad? I dont know what to do. Im not sure if i should RMA my heatsink or CPU... :??: 
October 24, 2009 8:14:14 PM

I've read that some 920's are actually better chips that have been labeled and programmed as the cheaper model to meet demand. Some 920's are actually 965's for example. They are both the same chip, but one has more imperfections and therefore runs hotter.

Using a Core i7 920 D0, Asus P6T Deluxe v2, Arctic Cooling Freezer 7 Pro Rev.2, and Xclio Windtunnel chassis, I'm getting idle/load of 60/90 at 4ghz. Thats a little too scary for me, so I underclocked it and turned all the fans down to silent (and with a solid state hard drive, it is quite quiet overall) - which for me is fun and cool in a different way. At stock speeds and low fan settings mine idles/loads at 45/65.
a b à CPUs
October 24, 2009 8:21:17 PM

Welcome aboard!

This thread is 4 months old. If you need to post a comment, then please use a more current thread.
August 6, 2010 6:36:58 AM



That's nice, after moving my cooler around by trying to achieve best result I got MAX 73c (70 is my average) @ 4.0GHz(1.25V cpu)
I'm using 2 push and 1 pool fans on TRUE 120 Extreme
a b à CPUs
August 6, 2010 2:12:12 PM

This topic has been closed by Mousemonkey
!