ASRock Z370 Extreme4 Won't Boot Up with Two Memory

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   Here's my build (I removed the video card for now as I thought it was a power issue at first):
https://pcpartpicker.com/list/k4mW8Y

I've used both sticks of memory in the A1 and A2 slots; the pc will boot up with either stick in either slot. When I include the other stick in the other (e.g. B1 when I had the other in A1 and vice versa) however, it won't boot up. The lights and fan turn on, but there's no display.

I've found some other posts online suggesting to run XMP on but all I see in the BIOS is to set XMP to either "Auto" or "Profile 1". Neither worked.

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cletus223 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Dec 2018 Status: Offline Points: 3	Post Options Post Reply Quote cletus223 Report Post Thanks(0) Quote Reply Topic: ASRock Z370 Extreme4 Won't Boot Up with Two Memory Posted: 18 Dec 2018 at 10:57am
	Here's my build (I removed the video card for now as I thought it was a power issue at first): https://pcpartpicker.com/list/k4mW8Y I've used both sticks of memory in the A1 and A2 slots; the pc will boot up with either stick in either slot. When I include the other stick in the other (e.g. B1 when I had the other in A1 and vice versa) however, it won't boot up. The lights and fan turn on, but there's no display. I've found some other posts online suggesting to run XMP on but all I see in the BIOS is to set XMP to either "Auto" or "Profile 1". Neither worked.

RLGL Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 29 Jul 2018 Location: MN Status: Offline Points: 2025	Post Options Post Reply Quote RLGL Report Post Thanks(0) Quote Reply Posted: 19 Dec 2018 at 12:02am
	According to the manual for your board on page 17, it states put memory in slots A2 and B2
	Asrock Z370 Gaming K6,Intel i7 8700K, Asrock x570 Taichi

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 27913	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 19 Dec 2018 at 4:05am
	Make sure the CPU is seated properly and that you don't have any bent pins in the socket. The memory controller is on the CPU so if there are bent pins or improper contact it is not uncommon for RAM to misbehave.