Sign in with
Sign up | Sign in
Your question

I7 920 overclocking - stock cooler

Tags:
  • Heatsinks
  • Overclocking
  • Cooling
  • Intel i7
Last response: in Overclocking
Share
March 2, 2010 1:12:14 PM

I've been reading everywhere NOT to OC with the stock cooler, but to me that does not make sense. Sure, it's a less high end cooler, but it is STILL a cooler. As long as you have a reliable CORE temp reader it should be fine, right?

That being said this is the first time I've ever overclocked a computer. I'm using the i7 920 with antec silver 5 thermal compound with the Antec 1200 full tower. I feel that the tower will help cool the processor as well, this thing is a beast... cold to the touch.

I've been doing my research and I think I'm going to bring it up to 3.0 Ghz and run Prime95 Small FFT for about 10-15 minutes and as long as the core stays below 75c I'm safe.

Thoughts?


I still have a lot of research to do, maybe someone can answer a few of my questions or direct me to where I can find my answers.

*What is "stepping?"
*How can I tell if my cpu is D0 or C0 stepping? What does that imply?
*I stability test before the OC, correct? Core THEN Memory?
*You use Prime95 to test stability of the Core, but how to test memory stability?

More about : 920 overclocking stock cooler

a b K Overclocking
March 2, 2010 2:33:53 PM

I hope you realise that Arctic Silver 5 requires 200 hours of operations and frequent turning off and on for the thermal compound to cure and temperatures to stabilize. Check the manufacturers' web site for more information.
m
0
l
March 2, 2010 3:55:20 PM

I am aware, I'm talking once it settles. Should be soonish, actually.
m
0
l
a b K Overclocking
March 2, 2010 4:52:08 PM

OK!

You can experiment if you want to. Be sure to go into BIOS and check settings to make sure the system will shut down if things get a little too warm.
m
0
l
a b K Overclocking
March 2, 2010 5:35:21 PM

Meltdown19k said:
I've been doing my research and I think I'm going to bring it up to 3.0 Ghz and run Prime95 Small FFT for about 10-15 minutes and as long as the core stays below 75c I'm safe.

Thoughts?


Stock setting with turbo enabled will bring you up to 2.8 Ghz. OCing to only 3.0 Ghz makes no sense to me. There will be very little benefit from such a small OC when the addition of a good aftermarket cooler will allow you to get a much higher OC and increase the performance substantially.

Couple of programs you will need: CPU-Z, coretemp or realtemp, prime95 or OCCT or IBT

Cpuz will show you the Bclk,multiplier,stepping and memory speed

Prime95 blend will stress both cpu and ram or you can run memtest if you want to stress just the ram.
m
0
l
March 3, 2010 9:49:41 PM

The stock cooler is a cooler but its the very least they could give you. Its pretty much maxed out at stock clocks this is why everyone says to use an after market product. with prime95 blend at full load my i7 920 hit 79c at stock settings.
Same system with a after market cooler im at 3.66ghz with 54c temps with prime running.

Stepping is like a version. c0/c1 is the first version and d0 was the second version. d0 overclocks higher with less voltage leading to lower temps. doesnt mean c0 is bad just tougher to play with in comparison. If you just got your 920 you more then likely have a d0 stepping.

the other questions are answered above, have fun :) 
m
0
l
a c 171 K Overclocking
March 3, 2010 10:19:48 PM

Meltdown19k said:
I am aware, I'm talking once it settles. Should be soonish, actually.


Soonish is about a year according to this review.

http://benchmarkreviews.com/index.php?option=com_conten...

"Here is the Arctic Silver 5 recommended cure time instruction from the manufacturers web site:

Due to the unique shape and sizes of the particles in Arctic Silver 5's conductive matrix, it will take a up to 200 hours and several thermal cycles to achieve maximum particle to particle thermal conduction and for the heatsink to CPU interface to reach maximum conductivity. (This period will be longer in a system without a fan on the heatsink or with a low speed fan on the heatsink.) On systems measuring actual internal core temperatures via the CPU's internal diode, the measured temperature will often drop 2C to 5C over this "break-in" period. This break-in will occur during the normal use of the computer as long as the computer is turned off from time to time and the interface is allowed to cool to room temperature. Once the break-in is complete, the computer can be left on if desired.

So by my estimation of this statement it would take almost a year of normal use to properly cure the AC5 compound, or almost nine days of continuous power cycles to meet their recommendation. "

I'd pick something from the top of this chart

http://benchmarkreviews.com/index.php?option=com_conten...

or one of these:

http://www.hwreviewlabs.com/index.php?option=com_conten...
http://www.xbitlabs.com/articles/coolers/display/therma...

I'd also pick something from the top of these:

http://www.silentpcreview.com/Recommended_Heatsinks
http://www.frostytech.com/top5heatsinks.cfm#INTELHEATSI...
http://benchmarkreviews.com/index.php?option=com_conten...




m
0
l
March 3, 2010 10:24:42 PM

Meltdown19k said:
I feel that the tower will help cool the processor as well, this thing is a beast... cold to the touch.

*facepalm*

If the tower/cooler is cold to the touch that's not a good sign. It means the heat isn't being removed from the CPU into the tower/cooler.
m
0
l
!