Overclocking noob... QX6700+680i

Y

yegor

Limp Gawd
Joined
Jan 31, 2007
Messages
153
Hiya, I just installed the QX6700 into my box, and Im thinking of doing some slight overclocking, nothing crazy, just as far as the stock cooler will let me. 2.8-3ghz.

Are there any guides on what mobo settings I have to change, etc. I have a nForce 680i mobo.
 
ooh

bad news. the evga 680i has major problems overclocking the qx6700. like you'll be lucky to get anything more than 300mhz out of the fsb on it.

the good news is that evga is working on a fix: http://evga.com/community/messageboard/topic.asp?TOPIC_ID=25339

for now you can go into the advanced bios screen and turn your cpu multiplier up to 11, that should give you a nice boost without needing a fsb OC :)
 
So I should touch the FSB speed at all? I boosted it by 40mhz.

it seemed like the cpu multiplier was set to 7x by default. I read that it cannot be adjusted, but apparently it can be.... since I changed it to 10. CPU temp jumped to 67C, according to the NVIDIA Monitor (which I dont really trust).

What program gives an accurate CPU temp reading?
 
Installed SpeedFan, which basically gives me the same reading, so I guess its the real one.

Switched the FSB back to default, and changed multiplier to 11. Running at 2933mhz, but the CPU temp is 75C, which is probably not a good idea.
 
yegor said:
Installed SpeedFan, which basically gives me the same reading, so I guess its the real one.

Switched the FSB back to default, and changed multiplier to 11. Running at 2933mhz, but the CPU temp is 75C, which is probably not a good idea.
Click to expand...
use coretemp,it's the most accurate
 
Well, they are all showing different temps.

Whats a normal temp for a stock speed qx6700, with a stock cooler?
 
yegor said:
Well, they are all showing different temps.

Whats a normal temp for a stock speed qx6700, with a stock cooler?
Click to expand...
coretemp is the most accurate!
i never tried the stock cooler so i couldn't say but i know it's gonna be in the upper 60's
 
coretemp is giving me 62-65C, so I guess its in the ball park.

What is the recommended operational temp threshold? I know my e6600 ran much cooler....

Would the Zalman heatsink make a lot of difference?
 
water i think makes a difference but for now air cooling it's either a zalman 9700 nt or a Tuniq Tower
 
Im def not going with water. I dont have much space in my case, not sure if thse massive heatsinks will fit.
 
at stock the chip wants a multiplier of 10

As far as heat goes, you should keep it under 65C. The Kentsfield is spec'ed to take a little more heat than Conroe, but you don't want to go near its limit. These chips run hot and I would not recommend overclocking with the stock cooler at all.

You should look into the Zalman CNPS9700, the Tuniq Tower or Scythe Infinity! Please don't go and burn that awesome chip out!
 
Are there any smaller heatsinks? Similar size to the stock that will do the job? I dont have much room.
 
Zinn said:
at stock the chip wants a multiplier of 10

As far as heat goes, you should keep it under 65C. The Kentsfield is spec'ed to take a little more heat than Conroe, but you don't want to go near its limit. These chips run hot and I would not recommend overclocking with the stock cooler at all.

You should look into the Zalman CNPS9700, the Tuniq Tower or Scythe Infinity! Please don't go and burn that awesome chip out!
Click to expand...

Kentsfield is a totally different animal. Its spec'd to go WAY higher than Conroe and runs WAY hotter. Its a 130TDP chip. There are plenty of threads on this around if you can sort through the noise of people just assuming old knowledge applies and making the same recommendations.

I ran the QX6700 at 86C for 48hrs for testing and it didnt even throttle. There has been annecdotal (unconfirmed) data from inside Intel that the chip isnt in trouble until (sort of obviously) it passes the tjunction. Tjunction on the QX is 100C.

Dont assume that C2D thermal principles apply to QX. You'll end up wasting a lot of time, effort and money for absolutely no reason. Keep it in the 70s and you're fine.

I found that at 1.375V, it is effortless to get QX to 3.2Ghz Prime stable and keep temps in the 60s. Pushing it to 1.45V takes temps into the 80s. At that point, I would personally feel more comfortable with more aggressive cooling, but 4xPrime is a pretty unrealistic workload and I'd need to see real evidence of someone damaging a QX running typical work loads day to day with a setup that would yield max load temps in the 80s.
 
mlambert890 said:
Kentsfield is a totally different animal. Its spec'd to go WAY higher than Conroe and runs WAY hotter. Its a 130TDP chip. There are plenty of threads on this around if you can sort through the noise of people just assuming old knowledge applies and making the same recommendations.

I ran the QX6700 at 86C for 48hrs for testing and it didnt even throttle. There has been annecdotal (unconfirmed) data from inside Intel that the chip isnt in trouble until (sort of obviously) it passes the tjunction. Tjunction on the QX is 100C.

Dont assume that C2D thermal principles apply to QX. You'll end up wasting a lot of time, effort and money for absolutely no reason. Keep it in the 70s and you're fine.

I found that at 1.375V, it is effortless to get QX to 3.2Ghz Prime stable and keep temps in the 60s. Pushing it to 1.45V takes temps into the 80s. At that point, I would personally feel more comfortable with more aggressive cooling, but 4xPrime is a pretty unrealistic workload and I'd need to see real evidence of someone damaging a QX running typical work loads day to day with a setup that would yield max load temps in the 80s.
Click to expand...
well said here
 
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