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post #281 of 409
Quote:
Originally Posted by cloppy007 View Post

What were the temps at stock? I haven't gone past 40 with my custom LC, or 45 with a 360 rad (running IBT).

Temps at stock (fans maxed):
Idle: 42 on hottest cores. Package temp 37.
Prime95 28.5: 66 on hottest cores. Package temp 57.

Temps at 4.2@1.25V (fans maxed):
Idle: 41 hottest cores. Package temp 40.
Prime95 28.5: 97 hottest core. Package temp 96.

I think it's just prime95 being unreasonable. I've heard people with H100i also getting 95 degrees when overclocked with prime95.
post #282 of 409
Quote:
Originally Posted by invincibler View Post

Temps at stock (fans maxed):
Idle: 42 on hottest cores. Package temp 37.
Prime95 28.5: 66 on hottest cores. Package temp 57.

Temps at 4.2@1.25V (fans maxed):
Idle: 41 hottest cores. Package temp 40.
Prime95 28.5: 97 hottest core. Package temp 96.

I think it's just prime95 being unreasonable. I've heard people with H100i also getting 95 degrees when overclocked with prime95.

It's like this:

There's new AVX2 instructions on Haswell CPUs. Those can do a lot more work. You'll see this in IBT if you look at the GFlops column: the numbers are a lot higher. The increased performance isn't free, the temperature goes through the roof.

The version of prime95 you are using is also using AVX2. You can look around for an older version of prime95. I think v27.9 doesn't use the Haswell stuff, will only use the AVX from Ivy Bridge, so that's what you could use to compare with Ivy Bridge CPU temperatures.

If you look at the Haswell overclocking threads, you'll see that people use other software for stress testing. To realistically test things, there's an x264 video encoding benchmark. That one also uses AVX2 instructions, but it does that for useful work (the video encoding). This will be the highest temperatures you'll ever see in normal programs so that's the best test for your cooling setup.
post #283 of 409
Thread Starter 
Quote:
Originally Posted by invincibler View Post

Temps at stock (fans maxed):
Idle: 42 on hottest cores. Package temp 37.
Prime95 28.5: 66 on hottest cores. Package temp 57.

Temps at 4.2@1.25V (fans maxed):
Idle: 41 hottest cores. Package temp 40.
Prime95 28.5: 97 hottest core. Package temp 96.

I think it's just prime95 being unreasonable. I've heard people with H100i also getting 95 degrees when overclocked with prime95.
What Deepor said.
I'm not familiar with your CPU, but idle temps seem high. H100i is only marginally better if better at all than TRUE Spirit 140 Power. TS140P is probably much better with TY-143 fan.
What is the cooler intake air temp?
post #284 of 409
Quote:
Originally Posted by cloppy007 View Post

You shouldn't have that problem, X99 cpus are very easy to cool because of the soldered IHS. Does the heatsink exhaust hot air? is is too hot to touch?

It's normal to see a ~30c or even greater temperature difference between most 100% CPU loads like video encoding, vs the hottest synthetics. Those synthetics draw ~1.5 - 2x more power, which means ~1.5-2x more heat output at the same voltages.

Video encoding with 1.4vcore or running linpack with 1.15vcore could give you identical power usage, heat output and temperatures for example.
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post #285 of 409
So I'm using an Enthoo Pro case with the PE and I've been wondering.

Is it better to have the cooler blow air out the back vent, or is it better to have the back vent be an intake as well, and have exhausts at the top?

Anyone have experience with this?
post #286 of 409
Thread Starter 
Generally the area behind the case is warmer than room air. This is because the PSU, GPU, etc are exhausting heated air out the back of case. Therefore it is generally best to not use the back vents for intakes.
post #287 of 409
Hi doyll, I'm a bit of a noob at all this redface.gif, especially compared to a guru of your significantly greater knowledge tongue.gif, so I'm hoping you can help.
I've read through the whole thread, including your very useful and extensively detailed OP and I'm sure I'm not the first in saying that your efforts are appreciated.
I will be ugrading my case to a Fractal R5 sometime in the near future, and I'm considering replacing my be Quiet Shadow Rock Slim (purchased not realising my preference of vertical orientation is not an option for AMD boards & this cooler mad.gif ) with the Thermalright True Spirit 140 Power, based on mainly yours and other reviews.
For my needs, silence is optimum, however, I would like to see if I could get my FX8350 up to 4.7GHz with said cooler. What are your thoughts?
Also, would x2 140mm front intake fans, and x1 rear 140mm exhaust fan provide adequate airflow, with the middle drive cage removed on the R5, in your esteemed opinion and which case fans would you recommend in said set-up, with silence (especially when not doing extensive tasks) as a consideration.
My basic specs are - Asus Sabretooth 990FX REV 2.0, FX 8350, AMD RADEON Gamer series @ 2133Mhz, Sandisk Extreme Pro 240GB SSD (OS), Samsung Evo 250GB SSD (games etc), be Quiet Dark Power 750w PSU.
Any help or suggestions you can offer will be greatly appreciated. biggrin.gif
Thanks in advance smile.gif
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post #288 of 409
Thread Starter 
Quote:
Originally Posted by Ur64n 50ulj4h View Post

Hi doyll, I'm a bit of a noob at all this redface.gif, especially compared to a guru of your significantly greater knowledge tongue.gif, so I'm hoping you can help.
I've read through the whole thread, including your very useful and extensively detailed OP and I'm sure I'm not the first in saying that your efforts are appreciated.
I will be ugrading my case to a Fractal R5 sometime in the near future, and I'm considering replacing my be Quiet Shadow Rock Slim (purchased not realising my preference of vertical orientation is not an option for AMD boards & this cooler mad.gif ) with the Thermalright True Spirit 140 Power, based on mainly yours and other reviews.
For my needs, silence is optimum, however, I would like to see if I could get my FX8350 up to 4.7GHz with said cooler. What are your thoughts?
Also, would x2 140mm front intake fans, and x1 rear 140mm exhaust fan provide adequate airflow, with the middle drive cage removed on the R5, in your esteemed opinion and which case fans would you recommend in said set-up, with silence (especially when not doing extensive tasks) as a consideration.
My basic specs are - Asus Sabretooth 990FX REV 2.0, FX 8350, AMD RADEON Gamer series @ 2133Mhz, Sandisk Extreme Pro 240GB SSD (OS), Samsung Evo 250GB SSD (games etc), be Quiet Dark Power 750w PSU.
Any help or suggestions you can offer will be greatly appreciated. biggrin.gif
Thanks in advance smile.gif
First thing I suggest is look at 'Ways to better cooling ..' thread.
http://www.overclock.net/t/1491876/ways-to-better-cooling-airflow-cooler-fan-data/0_20

I've not ran the TRUE Spirit 140 Power or TRUE Spirit 140 rev. A on an AMD so can't say for sure, but either one should do quite well. Only advantages the TRUE Spirit 140 rev.A has is it's shorter (no a problem in Define R5) and offset reducing the distance center CPU toward PCIe sockets from 77.5mm to 69mm (also not a problem with your motherboard.

Center of CPU toward RAM slots on your motherboard is about 50mm and without knowing your RAM height I cannot verify is if your RAM will not be a problem or not. wink.gif TRUE Spirit 140 Power has room for 49mm RAM while TRUE Spirit 140 rev.A is 42mm.

Neither are king of the hill, but they are still on top with the rest of the best.. biggrin.gif
post #289 of 409
Thanks for your response. thumb.gif
With regards the case fans, x2 140mm front intake & x1 140mm exhaust would be enough for positive airflow? Or should I add a 140mm intake from floor of case? Would you recommend the Thermalright fans over Fractals latest offering?
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post #290 of 409
Quote:
Originally Posted by Ur64n 50ulj4h View Post

Thanks for your response. thumb.gif
With regards the case fans, x2 140mm front intake & x1 140mm exhaust would be enough for positive airflow? Or should I add a 140mm intake from floor of case? Would you recommend the Thermalright fans over Fractals latest offering?

I'd say if you can, get all TY-143 and run them at around 1300RPM for normal use, with a fan profile for max RPM when things get tough.

Bottom intake is fine, and I'd recommend getting 1 or 2 of the top slots as intake, and the slot nearest to the back as exhaust, then get some cardboard and block between the exhaust/intake ones. The reason being that the top intakes will feed fresh cool air directly to the CPU cooler and the fan, and having 2 fans as back exhausts help remove the hot air faster.

Though all this is theory, and I still need to find a thermostat to check it over. tongue.gif
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