X870E Nova D4 on restart/cold boot

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dom0xDee4

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Posted: Yesterday at 9:06pm

I can't edit the post, but last two shots in BIOS what is different from default:

- default settings shown on the right (arrow pointing to those)
- settings used in y-cruncher session on the left of arrow.

Xaltar

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Posted: Yesterday at 11:49pm

Not a bad way to go really, so long as you are still within your warranty just
use it. If something dies you can get it replaced (for certain) under warranty.
If the symptoms worsen just RMA the CPU and/or motherboard. Odds are pretty high
that a BIOS update might resolve the issue sometime soon.

Thanks again for all your detailed info.

dom0xDee4

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Posted: 18 hours 30 minutes ago at 4:52am

Yeah, all components bought in December 2025 (case is old model), Samsung NVME Gen5 bought in April 2026 - which is when i took other components out of their boxes and assembled everything - basically i'm fighting 4d ever since one of first cold boots this mobo / cpu / memory combo had in it's electronic life :)

I'm just unsure, given how it goes thru stress test - that nothing really is "broken". Think i should've chose better when i ordered memory.

Something i don't think i mentioned too often before: it wakes up from standby happily, not even once has that failed fwiw.

But evidence on different BIOS versions behaving differently kinda defeats "defect hardware" theory - i'd bet my money it's something in memory training subroutine - stress tests so far prove once it's over that hurdle, it....runs without hiccups.
Except the "hurdle" seems to be a moving target on occasion.

I did have it in various ambient temps, ranges it had seen is 18°C to 25°C - it made no difference, 4d pops-up when it feels like so :D

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dom0xDee4 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Apr 2026 Location: Croatia Status: Offline Points: 210	Post Options Post Reply Quote dom0xDee4 Report Post Thanks(0) Quote Reply Posted: Yesterday at 9:06pm
	I can't edit the post, but last two shots in BIOS what is different from default: - default settings shown on the right (arrow pointing to those) - settings used in y-cruncher session on the left of arrow.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 37253	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: Yesterday at 11:49pm
	Not a bad way to go really, so long as you are still within your warranty just use it. If something dies you can get it replaced (for certain) under warranty. If the symptoms worsen just RMA the CPU and/or motherboard. Odds are pretty high that a BIOS update might resolve the issue sometime soon. Thanks again for all your detailed info.


dom0xDee4 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Apr 2026 Location: Croatia Status: Offline Points: 210	Post Options Post Reply Quote dom0xDee4 Report Post Thanks(1) Quote Reply Posted: 18 hours 30 minutes ago at 4:52am
	Yeah, all components bought in December 2025 (case is old model), Samsung NVME Gen5 bought in April 2026 - which is when i took other components out of their boxes and assembled everything - basically i'm fighting 4d ever since one of first cold boots this mobo / cpu / memory combo had in it's electronic life :) I'm just unsure, given how it goes thru stress test - that nothing really is "broken". Think i should've chose better when i ordered memory. Something i don't think i mentioned too often before: it wakes up from standby happily, not even once has that failed fwiw. But evidence on different BIOS versions behaving differently kinda defeats "defect hardware" theory - i'd bet my money it's something in memory training subroutine - stress tests so far prove once it's over that hurdle, it....runs without hiccups. Except the "hurdle" seems to be a moving target on occasion. I did have it in various ambient temps, ranges it had seen is 18°C to 25°C - it made no difference, 4d pops-up when it feels like so :D