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6700k Troubles

Smffy

Smffy

Smffy

Soldato
Joined
4 Dec 2015
Posts
3,232
Location
London
Howdy,

So from day 1 I've felt like the temps in my 6700k are way to spikey - i'm aware they spike a lot under loads but I just don't feel like its stable... Recently I got myself a pair of 1080FTWs, the upshot of this for the CPU is that the water blocks are not yet out so basically it is now the lucky recipient of 720mm of radiator all to its self so in theory it should be running a bit cooler.

Despite this I just feel like its dying a bit, nothing quite runs smooth and having gone from a 980Ti in a loop its not improved with the two 1080s so i'm leaning on the CPU. A few critical bits of information other than the [email protected] (1.32-1.36v stable):

  1. Motherboard: Asus Z170 Deluxe
  2. Ram: 32GB Corsair DDR4 @ 3000mhz
  3. Disks: 2 x 512GB Crucial M200 (I think) SSDs
  4. Disks: 1 x 256GB Crucial M200 SSD (OS)
  5. Disks: 512GB M.2 950 Pro (in dedi slot on motherboard)
  6. GPU: 2 x EVGA 1080 FTWs, @ Stock (1950 boost), running at 8x due to lanes
  7. Cooling: Full custom loop, 2 x 360mm EK Slims, 6 x Corsair SP120s, 1 x 140mm (rear)

My main grumble is that even sitting idle im seeing core clocks just repeatedly jump from 800-4500. The temps when I got this were sitting around the 50-55c mark under load, now we are talking more like 60-70 and occasionally 75-80. If you're still reading at this point, I congratulate you on making it this far through my waffle... Main questions:

  1. Best means of testing for crap performance?
  2. Best indicators something is wrong CPU side?
  3. Best means of seeing if my CPU is not playing ball/keeping up with my GPUs?

I'm currently debating a few options:

  1. Delid and replace the utter crap Intel put under the IHS
  2. Trade (well ebay) my Z170/6700k and move to X99/New CPU (I do a lot of video editing as well as gaming)

Thoughts welcome, try not to cost me a fortune now...

Thanks!
 
Have you checked LLC settings in the bios?

Quoted below is from another post but has been known to lower temps and a issue on some Asus boards.

Danny75 said:
Try lowering the LLC first, as in this thread. Assuming you've set the Vcore manually already as I gather from reading your OP. Otherwise do that too.
Click to expand...

then OP postted this as a reply of the above

skiersteve12345 said:
changed llc to level 1, temps after few hours gaming now
core 1 57
2 57
3 51
4 57
Click to expand...

this was the original post with temps before doing LLC changes

skiersteve12345 said:
Would also be interested in knowing max temps after a pretty heavy gaming session, I just want to see if my cpu temps and voltage are similar to everyone,

In bios all I changed was v core and disabled turbo boost,
vcore set at 1.152 everything else left the same,

after about 4 hours of gaming my temps are as follows

core 1 69
core 2 69
core 3 62
core 4 67

cooler h100i gtx
Click to expand...

I hope this helps point you in the right direction
 
Last edited:
Smffy said:
Howdy,

So from day 1 I've felt like the temps in my 6700k are way to spikey - i'm aware they spike a lot under loads but I just don't feel like its stable... Recently I got myself a pair of 1080FTWs, the upshot of this for the CPU is that the water blocks are not yet out so basically it is now the lucky recipient of 720mm of radiator all to its self so in theory it should be running a bit cooler.

Despite this I just feel like its dying a bit, nothing quite runs smooth and having gone from a 980Ti in a loop its not improved with the two 1080s so i'm leaning on the CPU. A few critical bits of information other than the [email protected] (1.32-1.36v stable):

  1. Motherboard: Asus Z170 Deluxe
  2. Ram: 32GB Corsair DDR4 @ 3000mhz
  3. Disks: 2 x 512GB Crucial M200 (I think) SSDs
  4. Disks: 1 x 256GB Crucial M200 SSD (OS)
  5. Disks: 512GB M.2 950 Pro (in dedi slot on motherboard)
  6. GPU: 2 x EVGA 1080 FTWs, @ Stock (1950 boost), running at 8x due to lanes
  7. Cooling: Full custom loop, 2 x 360mm EK Slims, 6 x Corsair SP120s, 1 x 140mm (rear)

My main grumble is that even sitting idle im seeing core clocks just repeatedly jump from 800-4500. The temps when I got this were sitting around the 50-55c mark under load, now we are talking more like 60-70 and occasionally 75-80. If you're still reading at this point, I congratulate you on making it this far through my waffle... Main questions:

  1. Best means of testing for crap performance?
  2. Best indicators something is wrong CPU side?
  3. Best means of seeing if my CPU is not playing ball/keeping up with my GPUs?

I'm currently debating a few options:

  1. Delid and replace the utter crap Intel put under the IHS
  2. Trade (well ebay) my Z170/6700k and move to X99/New CPU (I do a lot of video editing as well as gaming)

Thoughts welcome, try not to cost me a fortune now...

Thanks!
Click to expand...

Something sounds very wrong.

My 6700k is cooled by a Noctua UH12S (single tower with single 120mm fan).

I run it at 4.6Ghz at 1.3v on a Maximus Formula VIII. It's been running stable since I bought it last August.

At idle, I get slight clock fluctuations but it's mostly always under 1Ghz. Temperatures are 20-25C, voltage is very low also (0.89v). Are you using adaptive voltage, or a constant (manual) 1.34v?
 
Last edited:
ED209 said:
Have you checked LLC settings in the bios?
Click to expand...
No but I will do, I've tried it on stock settings (the auto voltage is a little aggressive anyway), also tried resetting default but i'll take a look at this setting... Thanks!

Dave2150 said:
Something sounds very wrong.

My 6700k is cooled by a Noctua UH12S (single tower with single 120mm fan).

I run it at 4.6Ghz at 1.3v on a Maximus Formula VIII. It's been running stable since I bought it last August.

At idle, I get slight clock fluctuations but it's mostly always under 1Ghz. Temperatures are 20-25C, voltage is very low also (0.89v). Are you using adaptive voltage, or a constant (manual) 1.34v?
Click to expand...

Mine started like this, sub 55c under load, and to be fair I can run it at 4.7 with only about 1.32v stable historically but I opted to stick at 4.5 to reduce temps down. I've since tried everything:

1. Manual, low voltage runs fine under tests at similar expected voltage but a bit hot
2. Default, nothing applied, runs a little cooler but not as expected
3. Adaptive, to allow for cooler running when Idle

On desktop its spiking a lot to max and back which is what doesnt make sense, gaming experience is starting to play badly despite my incredible FPS with SLI 1080s and 144hz Gsync its choppy as crap periodically. Very tempted to delid anyway based on the large temp drops seen on others - have everything to do that but waiting for a new case and looking to do it at the same time. PSU is not the issue btw, 1200w H1200i

Cheers!
 
See this video capture, it does this when totally Idle - testing the LLC @ 5 but looks like its no different. It used to idle at 23c, now its got 720mm of radiator its sitting at 30. Edit on this, it just cant sit at idle man... 800mhz, jumps to 2,000, 4,000, down... up. Somethings off for sure.

Ignore the memory usage %, its a RAM Disk.

Link: https://youtu.be/wLrPAzJAElc

Embed, will no doubt not work for no reason as always on here...

 
Last edited:
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