X99 Extreme 4 doesn't POST
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=5030
Printed Date: 25 Jul 2025 at 11:12pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X99 Extreme 4 doesn't POST
Posted By: friolator
Subject: X99 Extreme 4 doesn't POST
Date Posted: 03 May 2017 at 3:37am
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" rel="nofollow - We have several X99 Extreme 4-based systems in our office. All have been working fine for the past few years. A couple weeks ago, one of them shut down spontaneously and won't boot up. We've removed it from the server rack and I think I have a theory as to what's going on: The CPU Cooler's fan didn't spin when I powered it on. Also, the two 80mm case fans were clearly dying - one wouldn't spin at all unless you gave it a push, and the other was making a terrible whining sound. My guess is that the system overheated somehow and shut down. I've replaced the CPU Cooler fan, as well as the two case fans. Now when I power the system on, the CPU cooler fan spins, and the case fans are both working. But the system still doesn't get to POST. We've tried alternate GPUs as well, on the chance that the problem is actually the graphics card and not the motherboard or CPU. So now I'm wondering if it's possible that this overheated so badly that it fried the CPU and/or motherboard in some way. When we power on, we get a solid red light near the two chips with the BIOS version printed on them. Fans power on, including fans connected to the motherboard. But that's it. I've checked all the RAM and reseated all 8 sticks. Any idea what might be happening here? I'd hate to buy a new CPU if the motherboard is clearly fried, or vice versa. But we'd like to get this machine back up and running soon. Thanks!
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Replies:
Posted By: Xaltar
Date Posted: 03 May 2017 at 3:59am
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The Red light not going off indicates POST failure. Usually it will flash to indicate which of the 2 BIOS ROMs is active then go off at post. That means that the board is at least partially working or there would be no light. Do the following and see if it helps: 1. Clear CMOS 2. Remove and reseat RAM 3. Remove and reseat all power cables to the board 4. Try a single RAM module in each successive slot and attempt to boot with the RAM in each one 5. Remove, clean and reseat the CPU Start with 1 then try boot, then 2 etc Let us know how it goes.
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Posted By: friolator
Date Posted: 03 May 2017 at 4:24am
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So there's this thing that happens to me whenever I have a problem like this. I puzzle over it for days, try a few things, then throw my hands up and go to a forum. I write down exactly what I've tried, hit send, and within a few minutes, something comes to me. Half the time, it's the fix. Not long after I sent that, I decided to pull all the RAM out of the system and try just a pair of the 4GB sticks. No POST. Then I pulled those and tried a pair of 8GB, and it booted. Shut it down and added two more 8GB sticks, booted. Shut it down and added a pair of 4s in there, no boot. Tried the other pair, no boot. That's when I remembered that I had the 4GB sticks in another machine that we had upgraded a few months ago. I put the 4s on the shelf and a few weeks ago when this one died, i figured while I'm in there and it's off the rack I might as well upgrade it. So I think two things happened: 1) System overheated and wouldn't boot. 2) pulled it off the rack, added more memory while it was out, and then today replaced the fans. Wouldn't boot. The symptoms were the same, the cause was not. It's been up and running for about 20 minutes. I'm going to leave it out of the rack and let it burn in a little tomorrow to make sure everything is ok, but so far so good. In any case, thanks for the suggestions, and letting me puzzle through this in public! |
Posted By: Xaltar
Date Posted: 03 May 2017 at 4:39am
Glad to hear you got it sorted, sometimes all it takes is changing gear and looking at things from another angle, or even just reading back your own troubleshooting steps  -------------
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Posted By: wardog
Date Posted: 03 May 2017 at 5:50am
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" rel="nofollow - Have a spare PSU you can put on it to test? |