X370 KILLER SLI/ac ATX AM4 no boot aftr mem upgrd  
       
      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=25867
       Printed Date: 04 Nov 2025 at 10:45pm Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
      
 
  
      Topic: X370 KILLER SLI/ac ATX AM4 no boot aftr mem upgrd
       
      Posted By: X370KSLIac
       Subject: X370 KILLER SLI/ac ATX AM4 no boot aftr mem upgrd
       Date Posted: 06 May 2023 at 7:11am
       
      
        
          
	
This is my config for a PC I built in 2018  https://pcpartpicker.com/list/P4TR2m" rel="nofollow - https://pcpartpicker.com/list/P4TR2m 
  Component           CPU           AMD Ryzen 7 2700 3.2 GHz 8-Core Processor
  Motherboard           ASRock X370 KILLER SLI/ac ATX AM4 Motherboard       Memory           G.Skill Flare X 32 GB (2 x 16 GB) DDR4-2400 CL15 Memory (F4-2400C15D-32GFX) G.Skill Flare X 32 GB (2 x 16 GB) DDR4-2400 CL15 Memory     (F4-2400C15D-32GFXR)                      Storage           Samsung 840 EVO 250 GB 2.5" Solid State Drive Intel 660p 2.048 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive Gigabyte UD PRO 256 256 GB 2.5" Solid State Drive Crucial P3 4 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive
  Video Card           NVIDIA Founders Edition GeForce RTX 2080 Ti 11 GB Video Card
  Case           Corsair Carbide Series SPEC-02 ATX Mid Tower Case
  === Today I tried to add the G.Skill Flare X 32 GB (2 x 16 GB) DDR4-2400 CL15 Memory     (F4-2400C15D-32GFXR)     
  Tried a few slot combination per part PC picker and motherboard manual ... turns out that it does not work together with the old one.
  I put the old one (G.Skill Flare X 32 GB (2 x 16 GB) DDR4-2400 CL15 Memory (F4-2400C15D-32GFX)) back Slots 2 and 4 and now the system  does not boot, no screen activation either.
  Any suggestions on how to proceed form here?
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      Posted By: X370KSLIac
       
      Date Posted: 06 May 2023 at 7:17am
       
      
        
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PC powers on for about 20 seconds then shuts down.
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      Posted By: X370KSLIac
       
      Date Posted: 06 May 2023 at 7:47am
       
      
        
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You guys are going to laugh but it happens, I was not pushing the RAM slots in hard enough..
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