Boot Issue When XMP Enabled

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I have a Razer B550 paired with 2x16gb Trident Z Royal 3600 ram. It was working fine for a few weeks but suddenly I had issues where the pc was non responsive every morning. I tried a fresh Windows reinstall and now when I try to set the ram to 3600 xmp, the pc will not boot and shows the code "C0"

It seems like the pc will only run when the ram is set to auto. 

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
cheesecake Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Mar 2021 Status: Offline Points: 35	Post Options Post Reply Quote cheesecake Report Post Thanks(0) Quote Reply Topic: Boot Issue When XMP Enabled Posted: 18 Mar 2021 at 1:28am
	I have a Razer B550 paired with 2x16gb Trident Z Royal 3600 ram. It was working fine for a few weeks but suddenly I had issues where the pc was non responsive every morning. I tried a fresh Windows reinstall and now when I try to set the ram to 3600 xmp, the pc will not boot and shows the code "C0" It seems like the pc will only run when the ram is set to auto.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 28113	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 18 Mar 2021 at 3:11am
	It sounds like your CPU IMC degraded and now can't handle 3600 at the RAM's XMP settings. XMP = eXtreme Memory Profile, basically a built in overclock saved in the RAM's firmware that works on *most* systems. You can try manual settings, take a look for a good Ryzen RAM overclocking tutorial using Ryzen Calculator (a free app). If that doesn't get you up and running, you should contact your retailer and try to RMA the CPU. The likelihood anything else is causing the issue is slim. If the system began working with XMP then stopped its either the RAM or the CPU that has degraded. I would lean toward CPU but you can partially rule out RAM by installing a single RAM module in slot A2 and try enabling XMP. If it works, try the other module in the same slot and repeat. If only one fails, return the RAM, if both do, return the CPU.


Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 28113	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 18 Mar 2021 at 3:13am
	If both RAM modules pass, try them again in dual channel (A2 and B2 slots) and see if that works. If not, RMA the CPU.


cheesecake Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Mar 2021 Status: Offline Points: 35	Post Options Post Reply Quote cheesecake Report Post Thanks(0) Quote Reply Posted: 19 Mar 2021 at 7:01am
	I tried each ram individually and neither would boot running xmp. I then tried them on my brothers pc running the same cpu and motherboard and it worked on his. I tried him ram on my pc and it would not work running xmp. I think this is the cpu.