Hi guys,

Just bought a system with i7-4790k last nite... just wondering is it necessary to get a aftermarket cooler ?

Cpu temp reading hitting 100c when running prime95. * no overclock and stock intel cooler.

thank you.

Final stability test. Need to do a few encodes from blu-rays.
Btw i normally will remux it to mkv and then encode.
Ahem to those that know.

Latest x264 command line with AVX2.


this is where haswell shines. insanely fast. see that fps counter. If this was sandy/ivy at same speed will be 6-7fps on my encode setting.

I have a lot of times prime stable/linx stable system fail on reptitive number of encodes. i do about 30 encodes a month.

Pentium G3258





This post has been edited by hilmiangah: Jul 7 2014, 10:15 PM

i7-4790K @ 4.8 GHz.

4.9GHz frequent bsod during gaming, 5.0Ghz can boot into window and do some browsing only.



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Your GFlops look low, should be getting 120+ GFLops. Please use the LinX from front page and Win7 SP1/ Win8.

stasio's GFlops

First, I advice you to update BIOS to F5 (and Owi observation).
Your DC has similar voltage as my.What is batch number?

Btw,
fast bench....i7-4790K @ 5.0 GHz ,DDR3-2800 SPI32M




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5.0 GHz!!! @@ that's the awesomeness that I have been looking for. Well done man!

btw, is it 3D stable?

Well,for 3D probably I need more juice.....will try tonight.
Anyway,booting 5GHz with 1.385V...but not benchable.....






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Let's say if you put 1.5v on it, will it be benchable on 3D without thermal throttling?

I think arround 1.45V will be OK.

Edit:

Just fast test with original IBT 2.54 and LinX 0.6.5 @ 4.7GHz.
LinX is hotter 4C (has newer Linpack)

This post has been edited by stasio: Jul 8 2014, 10:46 AM


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Is that related to memory timing? I'll retest again later tonight.

Thank you. I'll get the bios updated soon. Proc batch num start with L4.
Btw. Now its stable at 4.8g @ 1.26 vcore... overclocking seems to be very complicated these day... my last system was a soc 939.

Nope. That IBT you used doesn't have AVX library to utilize the feature that comes with the 4790K.

Is it worth to upgrade frm z87 to z97?
More improvement upon overclocking?

Interesting comparison......4770K 4.0GHz (Auto) with memory XMP enabled and
4790K 4.0GHz (Auto) with memory XMP enabled.

4770K 4.0GHz @ 1.140V (Auto)....LinX @ 86C



4790K 4.0GHz @ 1.060V (Auto)....LinX @ 68C



Note:

LinX 0.6.5 (Original)

-temp......79-80C
-GFlops....~125

LinX 0.6.5 (latest Linpack)

-temp......84-85C
-GFlops....~185




This post has been edited by stasio: Jul 8 2014, 09:35 PM

Stasio
Think its ure z97 board rather than a cpu issue.

Hmm ure 5ghz sp32m is like close to a 4.5ghz sp32m.

Mem subtiming etc??

Memory not trim yet....

generally a lot of quick benches out there on z97.. all slower the z87.
but i dont think its a cpu thing but rather a mobo bios thing..

slower wprime.. one guy posted in ocn his 5ghz.. thats like my 4.7ghz.
way lower 3dmark physx etc...

are we seeing a another foxconn mars magic here.

i tried as of today 3 cpus. all can bench 4.7ghz @ 1.225v. None will do 4.8ghz wprime 1024.

This post has been edited by cstkl1: Jul 8 2014, 11:32 PM

Solve the issue by installing sp1 on win7. Now ibt gflops pretty much the same as what you guys posted.

Now linx run throw 101&124 bsod @ 4.8Ghz (vcore range from 1.26~1.41) temp hit 99~ 100c in 2 sec, it seems like corsair h105 unable to keep up with the heat generated and also random power cut off/trip from the corsair psu.

Ibt stable at 4.8ghz by feeding 1.26~1.27 vcore. But temp running dangerously high @80~98c for a water cooled cpu.

I started slow this time.

i5 4690K @ 4.6GHz | G.Skill TridentX 2666C10 @ 2800MHz 9-12-12-25-1T







This post has been edited by owikh84: Jul 10 2014, 04:38 PM