ASRock Forums : [Solved] Z370 extreme 4 does not start https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 10 Apr 2026 05:02:59 +0000 Sat, 24 Mar 2018 01:53:30 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=8157 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[[Solved] Z370 extreme 4 does not start : Let us know how how it goes with...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48486&title=solved-z370-extreme-4-does-not-start#48486 Author: Xaltar
Subject: 8157
Posted: 24 Mar 2018 at 1:53am

Let us know how how it goes with the new PSU Wink

I take it the old PSU did not power the system on with only the 24 pin connected? If not then it is almost certainly the problem. 

]]> Sat, 24 Mar 2018 01:53:30 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48486&title=solved-z370-extreme-4-does-not-start#48486 <![CDATA[[Solved] Z370 extreme 4 does not start : I suspected the PSU as well as...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48485&title=solved-z370-extreme-4-does-not-start#48485 Author: CDWard
Subject: 8157
Posted: 24 Mar 2018 at 1:44am

I suspected the PSU as well as the motherboard, so I simultaneously got in touch with the support of the PSU manufacturer. Unlike you, I received no response from them yet. So big thanks to you. Clap
I also finally got a second PSU from a mate to test. I only connected the 24 pin ATX plug and turned it on, and all the lights on the mobo went on. So it should be the PSU.
Thanks again for your help.


Edited by CDWard - 24 Mar 2018 at 1:53am]]> Sat, 24 Mar 2018 01:44:23 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48485&title=solved-z370-extreme-4-does-not-start#48485 <![CDATA[[Solved] Z370 extreme 4 does not start : Next step is to try another PSU....]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48482&title=solved-z370-extreme-4-does-not-start#48482 Author: Xaltar
Subject: 8157
Posted: 24 Mar 2018 at 1:14am

Next step is to try another PSU. If the PSU voltages are out of range for some reason that can also trigger the protection circuits. 

You can also carefully check the board, bottom and top, for any signs of a short. I would first check around the CPU socket to make sure no thermal compound has leaked over the surrounding components. Quite a few thermal compounds are conductive or capacitive so always be on the lookout for spill over. The other common area a short can develop (rough handling, bumping, scraping when installing etc) is the underside of the board. There are numerous solder points that have protruding wires, if these are bent together it can cause shorts, particularly around dense solder areas. 

At this point I am leaning toward PSU. Double check with your current PSU that you are connecting the 8 pin CPU power to the board not an 8 pin PCIe power connector. I have had this happen myself on occasion, particularly when I am distracted or frustrated while building Embarrassed

Good luck and let us know how you get on.
]]> Sat, 24 Mar 2018 01:14:57 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48482&title=solved-z370-extreme-4-does-not-start#48482 <![CDATA[[Solved] Z370 extreme 4 does not start : Thank you for your help. Xaltar...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48476&title=solved-z370-extreme-4-does-not-start#48476 Author: CDWard
Subject: 8157
Posted: 24 Mar 2018 at 12:43am

Thank you for your help.

Originally posted by Xaltar Xaltar wrote:

If the clear CMOS isn't bridged then I recommend you pull the board from the system and bench run it (on it's product box). There is a high likelihood you have a short between the board and the case. Basically your board's protections are kicking in and preventing power on, we need to alleviate every possible cause for this. If you still get the issue bench testing the system then it's time to pull the CPU and check for bent pins or warping on the CPU. 

Hopefully it's something as simple as a misplaced standoff on the case.


I tried this now. Unfortunately nothing changed.
Do you have any more ideas?
]]> Sat, 24 Mar 2018 00:43:53 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48476&title=solved-z370-extreme-4-does-not-start#48476 <![CDATA[[Solved] Z370 extreme 4 does not start : What Xaltar said above and double...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48403&title=solved-z370-extreme-4-does-not-start#48403 Author: wardog
Subject: 8157
Posted: 23 Mar 2018 at 6:01am

What Xaltar said above and double check the case wiring to the MB's system panel header.
]]> Fri, 23 Mar 2018 06:01:39 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48403&title=solved-z370-extreme-4-does-not-start#48403 <![CDATA[[Solved] Z370 extreme 4 does not start : If the clear CMOS isn&#039;t bridged...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48398&title=solved-z370-extreme-4-does-not-start#48398 Author: Xaltar
Subject: 8157
Posted: 23 Mar 2018 at 5:39am

If the clear CMOS isn't bridged then I recommend you pull the board from the system and bench run it (on it's product box). There is a high likelihood you have a short between the board and the case. Basically your board's protections are kicking in and preventing power on, we need to alleviate every possible cause for this. If you still get the issue bench testing the system then it's time to pull the CPU and check for bent pins or warping on the CPU. 

Hopefully it's something as simple as a misplaced standoff on the case.
]]> Fri, 23 Mar 2018 05:39:25 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48398&title=solved-z370-extreme-4-does-not-start#48398 <![CDATA[[Solved] Z370 extreme 4 does not start : wardog wrote:And ....... cooling...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48394&title=solved-z370-extreme-4-does-not-start#48394 Author: CDWard
Subject: 8157
Posted: 23 Mar 2018 at 5:15am

Originally posted by wardog wardog wrote:

And ....... cooling device is?

By chance did you forget connecting the 8-pin CPU power in the upper left?


Oh, sorry, forgot that one.
CoolerMaster Masterliquid ML240L

Yes it is. Checked thrice that I used the right cable and plugged it into the right outlet in the PSU.

Originally posted by Xalter Xalter wrote:


Check your Clear CMOS jumper, if it is set to the "clear" position it will behave exactly as you describe.

Checked. It is open.
]]> Fri, 23 Mar 2018 05:15:59 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48394&title=solved-z370-extreme-4-does-not-start#48394 <![CDATA[[Solved] Z370 extreme 4 does not start : Check your Clear CMOS jumper,...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48390&title=solved-z370-extreme-4-does-not-start#48390 Author: Xaltar
Subject: 8157
Posted: 23 Mar 2018 at 4:57am

Check your Clear CMOS jumper, if it is set to the "clear" position it will behave exactly as you describe. ]]> Fri, 23 Mar 2018 04:57:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48390&title=solved-z370-extreme-4-does-not-start#48390 <![CDATA[[Solved] Z370 extreme 4 does not start : And ....... cooling device is?By...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48388&title=solved-z370-extreme-4-does-not-start#48388 Author: wardog
Subject: 8157
Posted: 23 Mar 2018 at 4:50am

And ....... cooling device is?

By chance did you forget connecting the 8-pin CPU power in the upper left?
]]> Fri, 23 Mar 2018 04:50:04 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48388&title=solved-z370-extreme-4-does-not-start#48388 <![CDATA[[Solved] Z370 extreme 4 does not start : Hello everyone,I decided to build...]]> https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48385&title=solved-z370-extreme-4-does-not-start#48385 Author: CDWard
Subject: 8157
Posted: 23 Mar 2018 at 4:40am

Hello everyone,

I decided to build a new system and set up everything according to the manuals. Now I plugged in everything and pressed the power button. Nothing happened. I consulted the troubleshooting guide of the PSU and disconnected it for 5 min. As I turned on the PSU again, the lights from the graphics card and the cooling device flashed on for a second before everything seems dead again.
I am desperate on how to get everything running.

My system
CPU: Core i7-8700K LGA1151
MoBo: ASRock Z370 extreme 4
PSU: AeroCool P7-650W Platinum
GPU: msi gaming X (GForce GTX 1080 Ti)
RAM: Corsair Vengeance LPX (CMK32GX4M4B4000C19R)

Thank you in advance.

C.D.Ward


Edited by CDWard - 24 Mar 2018 at 1:45am]]> Fri, 23 Mar 2018 04:40:38 +0000 https://forum.asrock.com/forum_posts.asp?TID=8157&PID=48385&title=solved-z370-extreme-4-does-not-start#48385