Haswell Temp Readings

[WhoBeDaPlaya]

Prime95 makes my 4770k yawn and sit at 64C on full load. Linpack/IntelBurnTest makes it cry.
Try IntelBurnTest on maximum.

Are you using the outdated version of Prime95 without AVX? The new version pretty much stresses it as hard as IBT/Linpack.

 

[JimmiG]

Prime95 makes my 4770k yawn and sit at 64C on full load. Linpack/IntelBurnTest makes it cry.

Try IntelBurnTest on maximum.

Prime95 doesn't always catch every error when overclocking, but I've always found it great for heating up the CPU.

I gave IntelBurnTest a try. Only ran it long enough for temps to stabilize. Seems to be about the same as Prime95.


Maybe I got lucky with a good CPU. Also the Phanteks PH-TC14PE cooler I'm using appears to be very good, as seen in willomz's post http://forums.anandtech.com/showpost.php?p=35103210&postcount=28

I don't get why people use those test, There is literally no workload on the planet that will get even 10c close to those so what's the point? You could run bf3, F@H, video encoding, image rendering, 100 chrome tabs and running cine bench and it will still be cooler then those tests.

Safety margins. If I know my CPU cooler can handle those tests, I know I will never run into temperature issues even on a hot day with a dusty case and very high CPU load.

 

[BallaTheFeared]

That's without AVX

Can't you set throttle points with Haswell in the bios?

 

[allenk09]

Prime95 doesn't always catch every error when overclocking, but I've always found it great for heating up the CPU.

I gave IntelBurnTest a try. Only ran it long enough for temps to stabilize. Seems to be about the same as Prime95.


Maybe I got lucky with a good CPU. Also the Phanteks PH-TC14PE cooler I'm using appears to be very good, as seen in willomz's post http://forums.anandtech.com/showpost.php?p=35103210&postcount=28



Safety margins. If I know my CPU cooler can handle those tests, I know I will never run into temperature issues even on a hot day with a dusty case and very high CPU load.

HWMonitor didn't work with my CPU. Have you tried realtemp? Though you are running stock I guess.

This is as high as I can get the CPU on prime95 in large FFT or blend.

 

[JimmiG]

HWMonitor didn't work with my CPU. Have you tried realtemp? Though you are running stock I guess.

Yeah, RealTtemp, HWMonitor and Aida64 all show the same values for the CPU cores. Seems to be about 55C with Prime95 or IntelBurnTest.

I've read that temperature increases exponentially with voltage, so we'll see what happens once I start pushing it.

 

[allenk09]

Yeah, RealTtemp, HWMonitor and Aida64 all show the same values for the CPU cores. Seems to be about 55C with Prime95 or IntelBurnTest.

I've read that temperature increases exponentially with voltage, so we'll see what happens once I start pushing it.

Yeah I'm curious what voltage you get stable at 4.2Ghz and how hot it is on the Phanteks.

 

[Bubbleawsome]

Might be the wrong place to ask it, but will IB-e have the same thermal properties of haswell even though it is IB? I doubt it, but you never know.

 

[JimmiG]

Yeah I'm curious what voltage you get stable at 4.2Ghz and how hot it is on the Phanteks.

4.3 GHz seems like a pretty nice "sweet spot". Haven't found out what voltage I need for 4.4 GHz yet, but quite a bit higher than @ 4.3 GHz for sure.

The CPU seems to be *very* sensitive to voltages. At 1.2V it would crash after a few minutes, at 1.205V, I ran 1 hour of Prime95 and 1 hour of Aida64 without problems. Something to keep in mind if you're suffering from runaway temperatures trying to achieve your overclock - you may be increasing VCore too much.

Going to leave it on tonight to make sure it's 100% stable.

 

[blackened23]

Might be the wrong place to ask it, but will IB-e have the same thermal properties of haswell even though it is IB? I doubt it, but you never know.

You understand the physics problem associated with IB/Haswell, right? The chip is dissipating heat from a smaller surface area therefore temps will be higher than what SB users are accustomed to. Physics.

IB-E will not be better than IB due to having additional cores - even though IB-E will use fluxless solder, the additional cores would offset any benefit I suspect. Don't get me wrong, IB-E will be a great chip (and even better if there's a new platform chipset for it) but I highly suspect it won't be an amazing overclocker - if anything, it will likely be more of the same and similar to IVB and Haswell. I hope i'm wrong, though. Definitely hope i'm wrong.

 

[BallaTheFeared]

4.3 GHz seems like a pretty nice "sweet spot".

Wow I hope that's a dud... Linus did 4.6GHz with 1.2v

 

[JimmiG]

Wow I hope that's a dud... Linus did 4.6GHz with 1.2v

Actually that seems to be pretty good, and 4.5 GHz should be attainable if I really wanted to hear the sounds of fans blazing at 100%.

Remember that the retail versions are different from the engineering models Intel handed to reviewers. Sweclockers got their retail 4770K to 4.4 GHz using 1.312V and water cooling. WinMan_x2000 at the HardForum got his retail CPU to 4.2 GHz @ 1.2V.

 

[allenk09]

Wow I hope that's a dud... Linus did 4.6GHz with 1.2v

Mines looking like a definite dud. I can't get it above 4.2 at all and 4.2 isn't even stable until 1.235v

 

[Ares202]

Just started some overclocking on my i5-4670k

Ive only had to raise the vcore by 0.05 to reach 4.1ghz to 1.130v (although CPU-Z is showing a 0.15 rise)

 

[allenk09]

Yeah so, I just got the Phanteks...absolutely no difference between that and the Hyper 212 Evo with the Haswell

Higher idle temps too. I almost think there's something wrong with this 4770k, like the paste under the lid wasn't applied correctly.

 

[Bubbleawsome]

Haswell sounds like delidding would help a lot. If you know how to delid, I would go for it!

 

[kagui]

yes haswell run hotter even hotter than early samples, so if the reviews are early samples then .....
http://www.xbitlabs.com/news/cpu/di...e_Hotter_and_Slower_Than_Expected_Report.html

 

[allenk09]

No stability over 4.2 no matter what I do. 4.2 is where I'll stay!

Am I using the right version with AVX? Newest from the prime 95 website? If so, temps are not nearly as high as IBT.

 

[JimmiG]

Yeah so, I just got the Phanteks...absolutely no difference between that and the Hyper 212 Evo with the Haswell

Higher idle temps too. I almost think there's something wrong with this 4770k, like the paste under the lid wasn't applied correctly.

PH-TC14PE? What thermal paste are you using? Did you clean the CPU properly using ArctiClean or isopropyl alcohol when switching coolers?

I'm seeing about 28-30C idle with my PH-TC14PE and Arctic Cooling MX-4. This is with voltage scaling disabled (1.205V at idle), but frequency scaling still enabled (800 MHz idle). CPU fans run at 870 RPM idle.

 

[allenk09]

PH-TC14PE? What thermal paste are you using? Did you clean the CPU properly using ArctiClean or isopropyl alcohol when switching coolers?

I'm seeing about 28-30C idle with my PH-TC14PE and Arctic Cooling MX-4. This is with voltage scaling disabled (1.205V at idle), but frequency scaling still enabled (800 MHz idle). CPU fans run at 870 RPM idle.

PH-TC12DX. Yes I cleaned the CPU and Sink properly with Isopropyl before installation. And I'm using the paste supplied with the PH-TC12DX because I only have Arctic Silver 5 left and it sucks. I'm 28-30C idle, but at 4.2 it's still upper 80C with 1.2V. We'll see as the paste starts flowing into all the little nooks, it's only been on there for about 30 minutes now. I have PWM set on the two CPU fans but speedfan won't monitor CPU fan speed.

 

[Pheesh]

Remember that the retail versions are different from the engineering models Intel handed to reviewers. Sweclockers got their retail 4770K to 4.4 GHz using 1.312V and water cooling. WinMan_x2000 at the HardForum got his retail CPU to 4.2 GHz @ 1.2V.

Much like Ivy it's pretty clear that EVERY CPU is different. Engineering or retail, you would be playing the silicon lottery. Some people are getting 4.7-4.8 on retail, some are not getting close to that.

 

[aigomorla]

*sigh*

i miss seeing the black labels on cpu.. :\

The K label is so not the same as the Extreme Edition label. :\

 

[allenk09]

Ok. I didn't notice there was a new bios update for the G1 Sniper 5. Two versions and more than a month newer in fact. They're shipping them with really old bios. It fixed the CPU temp in the bios, and some other temperature programs for windows. I also found the CPU support list on Gigabyte's website and the 4770k has right next to it "Supported Since: Bios Version F5"....It came running Bios version F3?

I have also noticed a huge increase in stability, and I'm now able to hit 4.4Ghz with 1.235v. Played BF3 for 2 hours with not a single hiccup. Temps hit a max of 64C on the Phanteks TC12DX.

Look for new bios from your manufacturer if you're running a Z87 motherboard.

 

[Ben90]

Does anyone have a rumor or source of what the TJMax is on the 4770K? Ark doesn't even list a TCase that we can use to guesstimate.

 

[ShintaiDK]

Does anyone have a rumor or source of what the TJMax is on the 4770K? Ark doesn't even list a TCase that we can use to guesstimate.

TJmax should be 100C, down 5C from IB.

http://www.intel.com/content/dam/ww...h-gen-core-family-desktop-vol-1-datasheet.pdf

 

[Ben90]

Wow, didn't even think to look there. I spent quite a while reading that documentation for my Bloomfield. I lost interest in SB/IB documentation since it was mostly for arguing with people on here, and on a whole I've stopped caring what random people on the internet think.