Intel Motherboards - New X299 Killer SLI/AC don't boot.

New X299 Killer SLI/AC don't boot.

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=6299
Printed Date: 30 Jul 2025 at 1:35am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: New X299 Killer SLI/AC don't boot.

Posted By: Bestio
Subject: New X299 Killer SLI/AC don't boot.
Date Posted: 10 Oct 2017 at 1:39am

Hi, (forgive my bad english) I just assembled a new PC with:

Mainboard: AsRock X299 Killer SLI/AC

CPU: Intel i7-7800x

SSD: Samsung 950-PRO M.2

RAM: 32GB Corsair Vengeance DDR4-3000 (4x8gb, running yet at "bios default" 2133 for now)

GPU: Aorus NVidia GTX1080ti GPU.

PSU: EVGA Supernova G3 850w

The SSD already contained an operating system, and the very first time I powered the PC it booted correctly, but when I rebooted the PC for the first time, it no longer booted up. The PC start up, the bios works fine, but it won't load the OS.. Then I tried to boot from a USB KEY with Win10 installation, and with Win10 original CD, but when I press F11 to select boot unit, and I select any unit, the screen goes black and don't boot anything. I even tried to update BIOS via "internet flash", it found a FW update (1.20), but when I try to update it, the process fail, with "secure flash check fail!" error.

Replies:

Posted By: Bestio
Date Posted: 20 Oct 2017 at 10:50pm

After a week, no reply from Asrock support email about this issue.

I have no choice but to return the mainboard and never buy asrock Again.
Issues can happen, but total lack of support is unacceptable.