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***DeathBringer*** · 11-20-2021, 08:38 AM

(11-20-2021, 04:35 AM)NVimod Wrote: does this mod works with 1270 v5?

I think so.

biospains · (This post was last modified: 03-14-2025, 03:14 AM by biospains.)

This bios mod or (bios older than 7.10 with me_cleaner) works for me with Xeon E3-1240 V6.
But daisy chaining of ram no longer works I can use either channels A1,A2 or B1,B2 but not simultaneously (I extensively checked with many ram modules and shuffled them so there is no HW error, and B1,2 or A1,2 works when exclusively populated) even though BIOS and CPU-Z will report all memory channels populated and full capacity, but OS either windows or Linux will only use one pair.

Maybe Xeon does not supports daisy chaining (since 1151 cpus in only support 2 memory channels).
But correct me if I am wrong (because I might be) and then please advise me how to solve this situation if you know how.
Thanks

***DeathBringer*** · 03-14-2025, 10:17 AM

This motherboard has only 2 memory channels: A and B.
Read the manual (p. 15) - https://download.asrock.com/Manual/B150M%20Pro4.pdf
Check your Xeon with other motherboard.

biospains · (This post was last modified: 03-14-2025, 12:19 PM by biospains.)

(03-14-2025, 10:17 AM)DeathBringer Wrote: This motherboard has only 2 memory channels: A and B.
Read the manual (p. 15) - https://download.asrock.com/Manual/B150M%20Pro4.pdf
Check your Xeon with other motherboard.

Currently I populated A1 and A2 slots. And system is running in dual channel mode.
If I also populate B1 and B2 they are reported in BIOS and CPUZ but are not used in OS (windows and linux)
But If I swap the same RAM from B1,2 and put it to A1,2 and leave B1,2 unpopulated the ram works fine in dual channel.
Also I could just populate B1,2 with same ram and leave A1,2 blank and RAM still works in dual channel mode.

***DeathBringer*** · 03-14-2025, 03:11 PM

(03-14-2025, 12:18 PM)biospains Wrote: Currently I populated A1 and A2 slots. And system is running in dual channel mode.

Show a photo of motherboard with these DIMMs installed.

biospains · Yesterday, 02:26 AM

(03-14-2025, 03:11 PM)DeathBringer Wrote:
(03-14-2025, 12:18 PM)biospains Wrote: Currently I populated A1 and A2 slots. And system is running in dual channel mode.
Show a photo of motherboard with these DIMMs installed.

My apologies I mixed it up it is A1,B1. And only A1,B1 or A2,B2 works. But A2,B2 does not if they are all (4) populated.

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