Never use the STOCK intel cooler in warm invironments

[AtenRa]

Ok first test.

Core i5 3570K, Turbo on + Default heat-sink
ASUS Maximus V Gene
Kingston 2133MHz 2x4GB @ 1600MHz 9-9-9-24
MSI GTS450 1GB
OCZ Agility 4 128GB
Silverstone DA650W
Win 7 64bit

Ambient 34.5c at 10:00 am

Idle

100% Load

IBT 10 minutes later, Maximum temp was 103c. Pic above is when throttle incurred.

After ~17 minutes maximum temp was at 104c when i stopped the IBT.

 

[piasabird]

You do realize this is something that has been reported specifically about Ivy Bridge? It was reported that Intel used a cheaper non-effective heat transfer material inside of their CPU package. It is a flaw with their CPU assembly. It has been reported that Ivy Bridge processors run hotter. I dont think it is the actual heat sink but it is the processor itself that is flawed. So maybe for 3rd Gen Processors an after market cooler may be called for. Personally, I think you should report Intel to the Better Business Bureau. They are making a defective product.

 

[piasabird]

Maybe in cases where you are always running in turbo mode you should just turn down some of the settings. This could be a flaw in how the tubo mode works, or how your motherboard implements it. Maybe you are right and for intensive programs a heat sink is warranted. However if you take some program and that program is designed to run all the cores as high as possible for an extended period of time, it does not mean that is how a normal program will run.

So did you drill a hole in the heatsink for the temp probe? I dont think you can totally trust temp readings from the BIOS.

I thought turbo mode was suppose to kick off it was too hot? So have you turned off all the safety options for the processor or what?

Did you just pop the processor in and run it all on auto?

 

[exar333]

You do realize this is something that has been reported specifically about Ivy Bridge? It was reported that Intel used a cheaper non-effective heat transfer material inside of their CPU package. It is a flaw with their CPU assembly. It has been reported that Ivy Bridge processors run hotter. I dont think it is the actual heat sink but it is the processor itself that is flawed. So maybe for 3rd Gen Processors an after market cooler may be called for. Personally, I think you should report Intel to the Better Business Bureau. They are making a defective product.

How is it defective? This is one of the dumbest posts I have seen in a while.

 

[AtenRa]

The point of the test was to show that at high ambient temps using the default Heat-sink the CPU will reach the TJMax and will throttle down.

About turboboost,

http://www.intel.com/content/www/us...ology/turbo-boost/turbo-boost-technology.html

Dynamically increasing performance

Intel Turbo Boost Technology 2.0 is activated when the Operating System (OS) requests the highest processor performance state (P0).

The maximum frequency of Intel Turbo Boost Technology 2.0 is dependent on the number of active cores. The amount of time the processor spends in the Intel Turbo Boost Technology 2.0 state depends on the workload and operating environment.

Any of the following can set the upper limit of Intel Turbo Boost Technology 2.0 on a given workload:

Number of active cores
Estimated current consumption
Estimated power consumption
Processor temperature

When the processor is operating below these limits and the user's workload demands additional performance, the processor frequency will dynamically increase until the upper limit of frequency is reached. Intel Turbo Boost Technology 2.0 has multiple algorithms operating in parallel to manage current, power, and temperature to maximize performance and energy efficiency. Note: Intel Turbo Boost Technology 2.0 allows the processor to operate at a power level that is higher than its rated upper power limit (TDP) for short durations to maximize performance.

 

[ShintaiDK]

AtenRa, like IDC, you also got too much turboboost. 200Mhz too much to be exact.

You both use Asus Maximus boards. I guess its doing a default turbomode overclocking in BIOS. Or raised TDP limit in BIOS.

IBs stock turbo modes are (max) 4/3/2/2.

 

[AtenRa]

Only a single core was turbo at 3.8GHz.

BIOS settings for turbo was left at Auto (Intel default settings). But i will take another look in to it and let you know.

 

[ShintaiDK]

Only a single core was turbo at 3.8GHz.

BIOS settings for turbo was left at Auto (Intel default settings). But i will take another look in to it and let you know.

When you run 4 threads, no cores should run above 3.6Ghz. If they do, you are overclocking so to say.

Threads/Max Turbo for 3570K.
1, 3.8Ghz.
2, 3.7Ghz.
3, 3.6Ghz.
4, 3.6Ghz.

Example:

Intel on Intel. All stock/default.

 

[AtenRa]

Thats what i said, only a single core was running at 3.8GHz.

Take a look at the ASUS TurboV Evo app in my pics above. It says 1 core at 3.8GHz. I could get all 4 of them at 3.8GHz, that would be outside of the default turbo boost settings.

Anyway, i will take another look at it later and ill report back

 

[Rvenger]

Thats what i said, only a single core was running at 3.8GHz.

Take a look at the ASUS TurboV Evo app in my pics above. It says 1 core at 3.8GHz. I could get all 4 of them at 3.8GHz, that would be outside of the default turbo boost settings.

Anyway, i will take another look at it later and ill report back

Your voltages are inline for stock speeds. This was the same exact issue I was having with my 3770k. Stock cooler hit 105c and throttled. I had a post about that earlier here as well. Stock cooler is not adequate for long term or heavy use from what it seems here.

 

[ShintaiDK]

Thats what i said, only a single core was running at 3.8GHz.

Take a look at the ASUS TurboV Evo app in my pics above. It says 1 core at 3.8GHz. I could get all 4 of them at 3.8GHz, that would be outside of the default turbo boost settings.

Anyway, i will take another look at it later and ill report back

You cant run IBT with 4 threads and have 1 core at 3.8Ghz without going beyond stock and default. 3.8Ghz means 3 cores must be idle.

http://www.techpowerup.com/reviews/ASUS/Maximus_V_Gene/8.html

ASUS's UEFI BIOS does not follow the standard Intel Turbo profile for CPUs, and rather sets a custom profile that leads to a performance increase across the board. I noticed this immediately, as performance on a couple of quick benchmarks was far higher than I was expecting. Rather than having just a single core hit 3.9 GHz as is normal for an Intel i7 3770K, I found that ALL CORES run at 3900 MHz, as shown in the CPU-Z screenshot shown above.

IDC and AtenRa´s tests are invalid.

 

[Rvenger]

Multicore Enhancement needs disabled in the Bios. That's why all 4 threads are running at 3.8ghz. And set the BCLK to 100.0.

 

[AtenRa]

http://www.techpowerup.com/reviews/ASUS/Maximus_V_Gene/8.html

ASUS's UEFI BIOS does not follow the standard Intel Turbo profile for CPUs, and rather sets a custom profile that leads to a performance increase across the board. I noticed this immediately, as performance on a couple of quick benchmarks was far higher than I was expecting. Rather than having just a single core hit 3.9 GHz as is normal for an Intel i7 3770K, I found that ALL CORES run at 3900 MHz, as shown in the CPU-Z screenshot shown above.

I do confirm that,

It seams that on Auto all four cores were OC to 3.8GHz. I have changed that thru the ASUS Turbo V Evo, now when all cores are at 100% they turbo only up to 3.6GHz.

Ambient temp at 33,5c

Idle

Full Load

After ~10 minutes maximum temp was 94c at 33,5c ambient

 

[ShintaiDK]

That makes an epic change. So stock cooler is fine again!

10C delta even at 33½C ambient.

 

[AtenRa]

Yes, i dont expect it to reach 100c at 35c ambient but ill test it tomorrow and report back.

 

[Silverforce11]

They can't be that hot. Your blood would boil.

Failed biology class? ;P

 

[KingFatty]

I too was puzzled about the temperature for saunas seeming to be too high, so I looked up Sauna on wikipedia and the same temp range was there so I think the quote was copied. However, after some more googling, I saw that there is a maximum high temperature limit imposed by standards in the US and Canada, so I updated Wikipedia accordingly so you should see that the maximum safe limit for saunas is indeed listed for US in wikipedia as lower than the boiling point for water.

From (now edited) Wikipedia:

A sauna session can be a social affair in which the participants disrobe and sit or recline in temperatures typically between 70 °C (158 °F) and 100 °C (212 °F), although the maximum allowable sauna temperature in Canada and the United States is 194°F (90°C). These are C.S.A. and U.L. standards set back in 1982. This induces relaxation and promotes sweating.

 

[BallaTheFeared]

I was going to say, evo is showing all 4 cores at x38 in the first run.

The second run is showing one core at x38... i don't think it should be doing that.


All that said, 100 GFLOPS on the stock cooler is pretty bad ass

For comparison my i5-2500k @ 5GHz on water only gets around 130 GFLOPs, and that's with 8-10-9 1T 2200MHz ram.

 

[AtenRa]

In the second run all four cores run at 3.6GHz as they should, you can see it in the CPUz. Asus Evo was manually adjusted so if a single core was running it would raise it to 3.8GHz.