Very odd boot behavior on three identical builds

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   disable fast boot in bios

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Karl Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 01 May 2019 Location: austin Status: Offline Points: 4	Post Options Post Reply Quote Karl Report Post Thanks(0) Quote Reply Topic: Very odd boot behavior on three identical builds Posted: 01 May 2019 at 10:05am
	disable fast boot in bios

xhue Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 17 Aug 2018 Status: Offline Points: 634	Post Options Post Reply Quote xhue Report Post Thanks(0) Quote Reply 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.

jawknee530 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15 Feb 2019 Status: Offline Points: 4	Post Options Post Reply Quote jawknee530 Report Post Thanks(0) Quote Reply 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.