ASRock Forums : Can't overclock i7-5775C on Z97 Extreme9 https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 29 May 2026 05:20:24 +0000 Thu, 22 Oct 2015 02:44:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=1018 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : Nope that did not help me at all....]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4843&title=cant-overclock-i75775c-on-z97-extreme9#4843 Author: Galatian
Subject: 1018
Posted: 22 Oct 2015 at 2:44am

Nope that did not help me at all. Still having the same issue. I can see the default values of Broadwell (roughly 80W as Short Time Power Limit and 65W as Long Time Power Limit; the only thing that apparently does get changed is the Ampere limit).]]> Thu, 22 Oct 2015 02:44:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4843&title=cant-overclock-i75775c-on-z97-extreme9#4843 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : Bios 1.90 released today fixes...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4771&title=cant-overclock-i75775c-on-z97-extreme9#4771 Author: buyback
Subject: 1018
Posted: 20 Oct 2015 at 5:05am

Bios 1.90 released today fixes this issue on my Z97M Killer.
TDP can now be set above (Asrock EZ OC sets this to 1000W shown in IXTU).
Also setting a lower TDP like 40 works in BIOS to lower the TDP and power throttling kicking in earlier as expected.

So all is well here now with the latest BIOS.
1.90 Also release for the OP Z97 Extreme 9 today - please try and report.

Due to the microcode update I also hope it will fix the low multiplier speedstep bugs present in Broadwell where it was crashing speed stepping on low load before sometimes.
Intel did release a microcode update for that and I just hope it was included here.

Finally the broadwell seems to work (also OC to 4.1 on all cores 1.25v is now stable for my 5675c where it was only 4.0 before)

Thanks Asrock
ps: still no EDRAM multiplier clock setting available like on gigabyte and MSI :)
]]> Tue, 20 Oct 2015 05:05:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4771&title=cant-overclock-i75775c-on-z97-extreme9#4771 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : I know its unrelated to the OP...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4720&title=cant-overclock-i75775c-on-z97-extreme9#4720 Author: buyback
Subject: 1018
Posted: 19 Oct 2015 at 1:26am

I know its unrelated to the OP motherboard but also lowering the TDP targets on v1.80 BIOS and Z97M Killer does not work (stays at the processors default Values on my i5-5675C)

XTU works both ways.
]]> Mon, 19 Oct 2015 01:26:34 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4720&title=cant-overclock-i75775c-on-z97-extreme9#4720 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : Galatian wrote:That worked!...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4685&title=cant-overclock-i75775c-on-z97-extreme9#4685 Author: parsec
Subject: 1018
Posted: 17 Oct 2015 at 10:22am

Originally posted by Galatian Galatian wrote:

That worked! I have no TDPup or down option, but I can set the Turbo Boost Power Wattage and the Current Limit, which is exactly what I needed. Now I can see that the ASRock Settings do not actually work, so ASRock has to update their BIOS. Not sure if they are actually reading this though...


Great, glad that worked for you. Thumbs Up

I don't know personally if the UEFI Power and Current Limit settings on your board for a Broadwell processor cannot be set beyond a certain level. I'm not saying you are wrong, I just don't have a Broadwell processor.

Just to be clear, you had set the Power and Current Limit settings in the UEFI to their maximum allowable values, and then found you could increase them beyond that in IXTU, right?

When you run IXTU from a cold start/boot of the PC, and have not changed those limits in IXTU, or applied an IXTU profile, you should be able to see what their values were set to in the UEFI. Do you recall what those were?

The maximum Power and Current Limit settings in the UEFI might be the Intel recommended max values for normal use of a Broadwell processor. While the these Broadwell 'C' processors can be over clocked, they are not a standard 'K' type processor.

The TDP of the Skylake i7-6700K and i5-6600K CPUs is 91W, vs the 65W of the i7-5775C. The unique feature of Broadwell processors is their TDP can be configured to a lower value than their stock maximum. That also tells us IMO that they are not a typical 'K' type processor.

Yes, IXTU lets you change the limits, but IXTU warns you that any OC is at your own risk. Perhaps ASRock does not want to risk damage to Broadwell processors, if users do so and then claim ASRock let them do that with UEFI settings.

I'm just trying to explain why the limit options in the UEFI have the maximum set lower than for 'K' processor. I'm not saying you are wrong... or right to be honest. Wink

Could you be more clear about which options "do not actually work", or are "broken"? Really meaning in what way do they not work, or are broken?

]]> Sat, 17 Oct 2015 10:22:28 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4685&title=cant-overclock-i75775c-on-z97-extreme9#4685 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : BTW same issue on Z97M Killer...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4682&title=cant-overclock-i75775c-on-z97-extreme9#4682 Author: buyback
Subject: 1018
Posted: 17 Oct 2015 at 4:26am

BTW same issue on Z97M Killer - only Intel XTU can raise the TDP to keep CPU from power throttling my Broadwell (I5 5675C)]]> Sat, 17 Oct 2015 04:26:33 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4682&title=cant-overclock-i75775c-on-z97-extreme9#4682 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : That worked! I have no TDPup or...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4644&title=cant-overclock-i75775c-on-z97-extreme9#4644 Author: Galatian
Subject: 1018
Posted: 15 Oct 2015 at 10:29pm

That worked! I have no TDPup or down option, but I can set the Turbo Boost Power Wattage and the Current Limit, which is exactly what I needed. Now I can see that the ASRock Settings do not actually work, so ASRock has to update their BIOS. Not sure if they are actually reading this though...]]> Thu, 15 Oct 2015 22:29:28 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4644&title=cant-overclock-i75775c-on-z97-extreme9#4644 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : Try this: Download and install...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4636&title=cant-overclock-i75775c-on-z97-extreme9#4636 Author: parsec
Subject: 1018
Posted: 15 Oct 2015 at 4:42pm

Try this: Download and install the Intel Extreme Tuning Utility (IXTU), found here:

https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-

Open the main over clocking control screen, which will contain some of the same controls in the UEFI/BIOS. You must have the Intel Management Engine software for your board installed to allow you to change the settings in IXTU.

You'll find the long and short duration power limit settings in IXTU, as well as the maximum current allowed to be applied to the processor. You can change the core multipliers, BCLK, and CPU voltages.

In the lower right side of the screen, there are many processor attributes that can be monitored, including TDP. Most of them are not shown by default. Click on the little wrench icon within the display box, and a list of all the options will appear. Check those you want to monitor, particularly the TDP readings.

IMO, IXTU is a great tool, but it might also give you some bad news. For Broadwell processors (I don't have one) IXTU should display a Configurable TDP control. That will not appear for other processors, since their TDP cannot be adjusted, and their TDP is not limited to the rated TDP.

Either the configurable TDP option (if it exists, I hope it does) or the TDP reading shown in the monitoring options, will likely tell you if you will be able to exceed and/or adjust the specified TDP. That will be the good or bad news.

Intel refers to the configurable TDP as "Configurable TDP-down". That worries me, since it implies that the TDP may only be adjusted lower. See that for yourself on your processors Specification page:

http://ark.intel.com/products/88040/Intel-Core-i7-5775C-Processor-6M-Cache-up-to-3_70-GHz

If you find some options displayed by grayed or dimmed compared to the others, those options are not adjustable with your processor. It is rare for every option to be open to modification, so don't be to concerned if you see a few of the options like this.

Please let us know what you can or cannot do within IXTU with your Broadwell processor. We don't have many Broadwell users that have posted their experience with them here. At least I am very interested in what they are all about.

I wish you luck in your over clocking quest! Thumbs Up
]]> Thu, 15 Oct 2015 16:42:37 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4636&title=cant-overclock-i75775c-on-z97-extreme9#4636 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : This did not help. Temperature...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4630&title=cant-overclock-i75775c-on-z97-extreme9#4630 Author: Galatian
Subject: 1018
Posted: 15 Oct 2015 at 12:53pm

This did not help. Temperature is not a Problem. It's trying to stay within it's 65W TDP envelope. What doesn't seem to work is the override for the short and long duration power limit. No matter what value I enter it will still clock down.  ]]> Thu, 15 Oct 2015 12:53:13 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4630&title=cant-overclock-i75775c-on-z97-extreme9#4630 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : Try this - save, and then re-enter...]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4617&title=cant-overclock-i75775c-on-z97-extreme9#4617 Author: ASRock Expert
Subject: 1018
Posted: 15 Oct 2015 at 3:40am

Try this - save, and then re-enter and try overclocking:




]]> Thu, 15 Oct 2015 03:40:43 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4617&title=cant-overclock-i75775c-on-z97-extreme9#4617 <![CDATA[Can't overclock i7-5775C on Z97 Extreme9 : Here you go: ]]> https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4608&title=cant-overclock-i75775c-on-z97-extreme9#4608 Author: Galatian
Subject: 1018
Posted: 15 Oct 2015 at 3:18am

Here you go:



















]]> Thu, 15 Oct 2015 03:18:39 +0000 https://forum.asrock.com/forum_posts.asp?TID=1018&PID=4608&title=cant-overclock-i75775c-on-z97-extreme9#4608