Memory Context Restore not working

[Bowjangls]

I am not sure when this issue started, it might have been since I built the computer. The Memory Context Restore feature on my ASRock motherboard does not seem to be working, anytime I shut my computer down it is almost guaranteed to take 5 minutes or more to train the RAM again. I have actively avoided shutting my PC down for weeks in order to avoid the long boot times. The PC is fine otherwise, but turning MCR on or off in the BIOS doesn't seem to make a difference, my BIOS is up to date. In the meanwhile I am going to mess with the DOCP settings and see if that does anything, but otherwise I can't seem to find why this is not working.

[FilipposTechGR]

2 minutes ago, Bowjangls said:

I am not sure when this issue started, it might have been since I built the computer. The Memory Context Restore feature on my ASRock motherboard does not seem to be working, anytime I shut my computer down it is almost guaranteed to take 5 minutes or more to train the RAM again. I have actively avoided shutting my PC down for weeks in order to avoid the long boot times. The PC is fine otherwise, but turning MCR on or off in the BIOS doesn't seem to make a difference, my BIOS is up to date. In the meanwhile I am going to mess with the DOCP settings and see if that does anything, but otherwise I can't seem to find why this is not working.

Test with MCR enabled but memory at stock JEDEC no DOCP/XMP, see if boot time improves.

Manually set timings/voltage for your RAM instead of DOCP. Sometimes DOCP adds subtimings that prevent MCR from saving properly.

Clear CMOS and reconfigure BIOS from scratch MCR can get bugged if you’ve switched profiles a lot.

If it still doesn’t work, it may just be a firmware limitation of your board + RAM combo. 

In the meantime, you could also enable Fast Boot to shave off a bit of time, though it won’t fully solve the retraining issue.
 

[RONOTHAN##]

First off, can you give more detailed specs? What CPU are you using, what ASRock board specifically (they've made a lot of them, each with their own quirks), what memory kit are you using (exact model numbers please), and what memory slots are you using? We can make some guesses for stuff based on what you describe, but the other info would help quite a bit.

 

Have you tried other BIOS revisions? Newest is not always the best as fixing one thing can break something else, and these are not always caught in testing. It could be that your current revision broke it somehow, and you need to go to a slightly older version to get it working again. Given your boot times though, either you have a ton of RAM or you're using a very early BIOS, boot times of 5 minutes was only really a thing with the very early BIOSes, even doing a full memory training with 128GB nowadays shouldn't take more than about 2 minutes on a current BIOS from what I know.