Is 73 C too hot for an overclocked E6750?

[cocofmax]

Hi, i have an overclocked c2d e6750 @ 3.4ghz and at its full load it marks 69c-73c top. I was wondering if its too hot or if its ok on that heat range.

Thx for the help.

oh ive set the vcore to 1.4v if u ask...

 

[LukeBird]

I would say that was running a little high...
What heatsink are you using?

 

[jys84]

yes?

 

[zenmaster]

http://processorfinder.intel.com/details.aspx?sSpec=SLA9V

The thermal specs for the E6750 says its designed for up to 72c.

So, 73c will likely not kill the CPU.

However, I would not feel comfortable running my chip hot, especially since so many things such as room temp, more dust in the case, etc... could easily start to push that temp even higher.

I would prefer to keep it far enough under 72c that I'm not worried about potential variations.

Then there is always the question of how accurate your numbers are, etc... etc.. etc...

 

[Shadow703793]

http://www.tomshardware.com/forum/221745-29-core-quad-temperature-guide

Core 2 Quad and Duo Temperature Guide

 

[Thanatos421]

You shouldn't need that much voltage to run your 6750 at 3.4 honestly. Have you tried anything lower than that? Mine runs at 3.6 at 1.425, and that's the absolute lowest I could set it w/o instability. At 3.4, I was able to get by with 1.35v.

I only say that because you are starting to get to that point where each tick of voltage you can take off will help immensly with keeping your temps under control.

 

[cocofmax]

oh thanks, ill try to lower the voltage later after work...oh and i only get 73c if i stress out the cpu, in games i get 68c top.

 

[Guest]

I, personally, prefer to keep my CPU below 60C on full stress tested load. Intel says 70C, but its good to give yourself room for those 'what ifs' and such.

 

[nhobo]

What case and fans?

 

[cocofmax]

im with stock cooler

 

[cnumartyr]

im with stock cooler

Do yourself a favor and stop OCing on the stock heat sink.

Then read the temperature guide Shadow posted.

 

[Thanatos421]

Yikes, yes, on stock cooler, either run it at stock or with a very mild OC. Stock should be able to handle 3.0GHz. Remember to lower the voltage if you do that though For 3.0, you might be able to get away with 1.3 or 1.325. That will help your temperatures drop a ton.

Remember, raising clock frequency increases heat generation linearly, while upping voltage increases heat generation exponentially.

 

[Shadow703793]

Here are some good CPU cooler:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835118019&CMP=OTC-RSS&cm_mmc=OTC-RSS-_-CPU+Fans+%26+Heatsinks-_-Zalman+Tech+Co.%2c+Ltd-_-N82E16835118019
^My personal preference
http://www.newegg.com/Product/Product.aspx?Item=N82E16835887011
http://www.newegg.com/Product/Product.aspx?Item=N82E16835118118
http://www.newegg.com/Product/Product.aspx?Item=N82E16835106102

 

[cocofmax]

Thanks guys, i lowered the vcore to 1.35v and now i get 66c max when i stress the cpu (prime95), i think that temp is ok, right?

 

[Thanatos421]

66c is not going to hurt anything, but it is still warm. That's about what mine is running at right now, maybe 1-2c higher at peak during stress. While you might not kill anything, you may shorten it's lifespan I'm not worried about mine, that is why I let it run that warm. This 6750 was an interim O/C project/learning experience until the cheap Penryn quads hit the channel.

Another thing about overclocking. Don't just get it stable and be satisfied. Keep notching the voltage down and stressing it until instability creeps back in. Then, just set it to the lowest stable voltage, and stress it for 24 hous. If it passes, that's your voltage.

 

[Grimmy]

What temp exactly is that (69-73C)? Tcase or Tjunction?

If its the Tcase temp (sensor between the cores) that is too hot.

If its the Tjunction (sensor one each core) then it might be okay, but a lil high. The Tcase sensor should be about 10C cooler then the cores, which would make the Tcase reading 58-63C.

But ya, take a look at what shadow linked.

 

[ryanthesav]

that seems real high ur gonna first have to try re-seating ur heat sink then if that still dosent work I would think about going to water cooling...have fun

 

[Thanatos421]

Yea, I forgot to mention that detail..... That is a little warm for the cores. It's hot for the Tcase. My cores peak at 67c during small FFT testing. That's still warm like I said, but it is within specs. Like Grimmy said, you want your Tcase sensor no hotter than 60-62.

 

[yuseaname]

A more sufficient heatsink is a crucial component to any oc'ed system, but I dont mean to beat the dead horse by saying that. The Thermalright Ultra 120 Extreme is the best cooler I have had experience with, use whatever fan of your choosing that pushes plenty of air (i have a panaflo on mine). With ceramique, my e6300 @3.5 does not go above 60c (both cores active) using intel's thermal analysis tool. If you have the space, this heatsink is one option to consider on top of the list already in the thread.

 

[Knighthis]

I'm running at 3.2GHz and I don't break 40C even under load! Not sure what I'm doing right, but I'm damn glad!

System Specs:
Asus P5N32-E SLI Plus (Nv650i/Nv570SLI)
Core Duo E6750 2.66GHz OC to 3.2GHz
Zalman CNPS9500A
(2x) BFG GeForce 8800GTX OC (BFGR88768GTXOCE) in SLI
DELL UltraSharp 2405FPW 24" LCD
2GB Corsair Dominator DDR2 PC8500
Corsair CMXAF1 RAM Cooler
1 Western Digital Raptor WD1500ADFD (Windows Vista Ultimate)
2 x Maxtor Diamond Max 9 6Y080MO in RAID-0 (Windows XP Pro Dual Boot)
Sound Blaster Audigy 2
Razer Barracuda HP-1 Gaming Headphones
Plextor 48X24X48X PX-712SASW
Thermaltake Mozart Tx VE1000BWS Tower Case
Epsilon FX700-GLN 700W PSU
Logitech G5 Gaming Mouse
MS Natural 4000 Key Board
Saitek X52 HOTAS Flight Controller

 

[Thanatos421]

Did you calibrate your thermal monitoring? Seems a little cool, but it's possible. What's your ambient temperature and idle temps (core0, core1, and cpu(tcase))?

Also, what's your vcore?

 

[daleyboy]

And whats the ambient room temp? ... I've got a e6750 running at 3.2Ghz using 1.375 volts (can prolly go lower volts but couldnt be arsed) and it averages about 50-55 degrees celcius .. with an ambient room temp of 25-30 degrees on average (room sometimes reaches 40 .. gotta luv two storey houses in australia without a/c)

 

[Guest]

Knightthis - that has to be the longest system specs listing i have ever seen, all relevant also.