Z270 Extreme4 does not start
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=4524
Printed Date: 27 Jul 2025 at 5:59pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z270 Extreme4 does not start
Posted By: wjurek
Subject: Z270 Extreme4 does not start
Date Posted: 04 Mar 2017 at 5:34am
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" rel="nofollow - Hi guys, I built a system with: Z270 Extreme4 motherboard Intel i5 7600K Corsair DDR4 16GB 2400 Vengance LPX Samsung SSD 960 EVO 500GB secondary HDD Seagate 2TB Motherboard LEDs blink when I switch it on. After a second it restarts and still blinks. There is no signal on HDMI, DVD works, CPU fan works, case fans don't work. Can someone advise how can I investigate what is the issue? Is there any Dr Debug for this motherboard? I plugged both power connectors. Case doesn't have speaker so I didn't plug anything to 7-pin SPK_PLED. Thank you for any help. It is hard to google it cause it is quite new mobo. wjurek
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Replies:
Posted By: wardog
Date Posted: 04 Mar 2017 at 10:59am
Odd, they seem to have omitted the Dr Debug codes from your manual:  http://www.asrock.com/support/faq.asp?id=334 My guess, the Corsair DDR4 16GB 2400 Vengance LPX kit isn't compatible. From what youu describe anyways. Either post the Kit P/N here or check yourself at: http://www.corsair.com/en-us/memory-finder Keep us posted please. |
wjurek wrote:Posted By: wardog
Date Posted: 04 Mar 2017 at 11:02am
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Whoa there Case fans do or do not work? |
Posted By: parsec
Date Posted: 04 Mar 2017 at 12:43pm
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" rel="nofollow - No Dr. Debug display on your board. The POST beep speaker would be connected to the four pin speaker connection. But that connector is not enabled by default in the UEFI/BIOS, so you would not hear any POST beeps until you can get into it and enable that option. You have case fans connected to the mother board, but they are not spinning? What PSU model do you have? ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: wjurek
Date Posted: 04 Mar 2017 at 4:14pm
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CPU fan works Case fans do not work even though they are connected to motherboard. PSU is Corsair VS650
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Posted By: Xaltar
Date Posted: 04 Mar 2017 at 4:36pm
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Power not getting to the case fans but getting to the CPU fan is very odd. Try disconnecting all the case fans and leaving just the CPU fan connected. If there is some kind of short on the case fans it could be causing safety features to kick in. If that does not work I would try with another PSU, it is also a good idea to take the board out of the case and bench run it. Check for any motherboard standoffs in the wrong places or any other things under the board that could cause a short (loose screws etc). ------------- 
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Posted By: wjurek
Date Posted: 04 Mar 2017 at 4:59pm
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I have this memory Vengeance® LPX 16GB (1x16GB) DDR4 DRAM 2400MHz C16 Memory Kit - Black (CMK16GX4M1A2400C16) P/N 48-08877 rev AA If you are sure it is not compatible with motherboard I have please suggest what memory I should get. Cheers, wjurek
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Posted By: Xaltar
Date Posted: 04 Mar 2017 at 5:08pm
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At this point the more concerning point is that the case fans attached to the board are not spinning up while the CPU fan is. This to me indicates another problem, the RAM could well be incompatible but it should not behave in that way even if the RAM is not supported. -------------
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Posted By: wjurek
Date Posted: 04 Mar 2017 at 5:30pm
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" rel="nofollow - I tried all this before posting the initial query. 1. I made sure both power connectors are properly set 2. Tried without case fans connected 3. Run the test with motherboard outside the case 4. Removed CPU and looked for bend pins 5. Tried with memory in slots 1,2, 3 Every time same behavior. Or LED blinking in blue, quite slowly. PSU is 650W so I guess shouldn't be an issue. I'm unable to find information confirming that my memory is not compatible. Corsair site says that memory is compatible with x99 and x100. Does this mean it is not good for z270? http://www.corsair.com/en-us/vengeance-lpx-16gb-1x16gb-ddr4-dram-2400mhz-c16-memory-kit-black-cmk16gx4m1a2400c16 |
Posted By: wjurek
Date Posted: 04 Mar 2017 at 5:32pm
Does this indicate problem with motherboard, case or PSU. Unfortunately I don't have spare units to replace each of them and try.
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Posted By: wjurek
Date Posted: 04 Mar 2017 at 5:33pm
| One more thing I noticed but not mentioned earlier - when i switch off one of the case fans slightly moves |
Posted By: Xaltar
Date Posted: 04 Mar 2017 at 6:05pm
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Have you tried clearing CMOS? I know it's an obvious question but we have to ask. Things I can think of that could cause this are: DOA power supply A short somewhere DOA board DOA CPU Bad RAM As you can see, based on what we know so far, we haven't ruled out much. Power is always my first step after checking connections. Then rule out shorts or jumped clear CMOS pins (if the jumper is in the clear position the system will not power up). Basically do what you can by process of elimination to rule out each of the major components. This is very difficult without spare parts and is one of the major down sides of building your own systems. Generally it all goes smoothly out the box but when there is a problem it can be all but impossible to resolve without being able to test components individually  -------------
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Posted By: wardog
Date Posted: 04 Mar 2017 at 7:54pm
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You haven't mistakenly connected the fan pigtails to the MB backwards have you? Too, what fans and how many |
Posted By: wjurek
Date Posted: 05 Mar 2017 at 3:31am
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I was doing everything very carefully and I'm sure I didn't plug it wrong side. I decided to send everything back and ask them for assembling it. Thanks all you guys for very quick help!
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Posted By: Tide
Date Posted: 18 Aug 2017 at 9:25am
Hello, Im having the same issue you had except my case fans work while cpu_fan1 will not. Im interested in knowing if you solved your issue, as it could help me out.
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