ASRock Forums : X370 Killer SLI/ac not POSTing https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 18 Apr 2026 12:04:04 +0000 Mon, 27 Aug 2018 07:20:53 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=9532 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[X370 Killer SLI/ac not POSTing : I recently tried to build my PC...]]> https://forum.asrock.com/forum_posts.asp?TID=9532&PID=55336&title=x370-killer-sli-ac-not-posting#55336 Author: ithastobeghosts
Subject: 9532
Posted: 27 Aug 2018 at 7:20am

I recently tried to build my PC for the first time and have been not been able to get it to POST for about 2 weeks now.

My specs:
ASRock X370 Killer SLI/ac
AMD Athlon X4 950 Processor (old part, nkown good. for testing purposes)
HyperX Predator 16GB (2x8GB) 2666MHz
XPG SX8200 480GB 3D NAND NVMe Gen3x4 M.2 2280 SSD
Corsair Hydro Series H100i v2 AIO Liquid CPU Cooler
EVGA SuperNOVA 550W G3

I'm not sure what the GPU is exactly - I'm borrowing it for testing purposes, but it's known to be a good part.

I've tried:
Placing one stick of RAM in each slot individually, clearing the CMOS between switches, to no result. I've tried this with each different set-up I've done to try to make it work.
Leaving the CMOS battery out overnight 
Switching from my SSD to a known working hard drive
Moving the GPU to the second slot
A different PSU
A different fan for the CPU
Different HDMI cables
Different monitors (a known working TV and a known working monitor)

But none of this has worked so far. I also checed to make sure whatever I changed out was seated properly, including cables. I have also replaced the mobo once, since I thought it was the broken part, but that doesn't seem to be the case (maybe).
All I know is that the MOBO beeps when there's no RAM (3 beeps, which seems to be accurate to the error code lists I've seen for "no RAM") but it doesn't beep when there's no GPU in.

Any advice or help would be very appreciated!
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