Very odd boot behavior on three identical builds
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=10898
Printed Date: 30 Jul 2025 at 2:12am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Very odd boot behavior on three identical builds
Posted By: jawknee530
Subject: Very odd boot behavior on three identical builds
Date Posted: 15 Feb 2019 at 11:49am
This last week i built three identical builds.
Threadripper 2990WX
ASRock X399 Taichi sTR4 : 3.30 Bios
G.SKILL Trident Z RGB (For AMD) 32GB F4-3200C14Q-32GTZRX: 3200 14-14-14-34 XMP
EVGA SuperNOVA 1300 G2
SAMSUNG 970 EVO
Dual Nvidia Quadro P1000s in PCIe slots 1 and 4 (the 2 x16 slots)
The odd issue is that every time I boot any of the three machines after they've lost access to power it takes three tries.
1st: lights come on, fans spin up, then it cuts off after just a few seconds
2nd: everything comes up, Dr Debug starts cycling through it's thing, then everything cuts off after maybe 15 seconds
3rd: boots properly
This only happens after a fully cold boot where the machines has been unplugged or the psu switch has been flipped off. The machines all boot normally after this first little dance. This happens wether the ram is at 2133 stock or under the XMP profile at 3200.
BIOS Settings:
CPU at stock frequency and voltages
SMT disabled
Precision Boos Overdrive disabled
SVM Mode disabled
IOMMU disabled
All other settings default
I get the same behavior regardless of these settings, these are just the current ones.
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Replies:
Posted By: xhue
Date Posted: 16 Feb 2019 at 11:37pm
Now, that's some serious power you got there!
Your issue smells like mobo can't train the memory good enough.
Although I always hate assuming, I'll try it once more - assuming you know how to build properly after that truckload of $$$ spent, I'll take your RAM, cabling and CPU are seated correctly.
With the above said, I'd reccomend leaving just 1 stick of RAM in A2, clearing CMOS and trying to boot. If my theory is correct your WS should boot right off.
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Posted By: Karl
Date Posted: 01 May 2019 at 10:05am
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disable fast boot in bios
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