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View Full Version : ROG STRIX Z370 E GAMING: Bios 0419 breaks XMP support for F4-4000C18Q-32GTZ RAM



ZooLz8l
10-24-2017, 07:42 AM
Hi,

as the topic says my F4-400C18Q-32GTZ RAM was working fine with the XMP profile under the old firmware 0410.
With the 0419 bios the system won't boot with XMP enabled(POST fails during RAM test). After I switched back to 0410 everything is working again
I am using a 8700k without any OC.

Is there any setting different between 0410 and 0419 which could lead to this or is the newest firmware bugged?

Greetings!

Raja@ASUS
10-24-2017, 07:43 AM
Try tuning the SA and IO voltages. May have been some rule changes. You can check.

ZooLz8l
10-24-2017, 08:00 AM
Try tuning the SA and IO voltages. May have been some rule changes. You can check.

Thanks for the super quick reply.

Is there any changelog? it would be nice to know those changes to avoid confusion.

Another things to point out: the ram was never stable at 4000mhz. Asus list the ram as compatible with 4000mhz but g.skill does not list the motherboard as compatible. just a side not that might interest people.

Shamino
10-24-2017, 12:19 PM
can you try, under dram timings/training algorythm/

Enable Read time centering 2D

Disable DIMM ODT training

before saving and exiting

Carbonicdk
10-24-2017, 10:22 PM
There's the same issue with F4-3600c16q-32gtzr which I've yet to solve. Might be a more general issue.

Crysto
10-25-2017, 01:00 AM
After updating the Maximus X Hero from bios 0213 to 0505 I was now able to run the G.Skill f4-4000c18d-16gtzr kit at XMP speeds. So very likely both bioses have had changes affecting memory stability.


Try tuning the SA and IO voltages. May have been some rule changes. You can check.

'You can check.' Is this not exactly why we expect changelists?

Raja@ASUS
10-25-2017, 07:16 AM
'You can check.' Is this not exactly why we expect changelists?


Seeing as there are no (or only limited) changelists...

mzimm88
10-26-2017, 02:56 PM
After updating the Maximus X Hero from bios 0213 to 0505 I was now able to run the G.Skill f4-4000c18d-16gtzr kit at XMP speeds. So very likely both bioses have had changes affecting memory stability.



'You can check.' Is this not exactly why we expect changelists?

I updated to 0505 and can no longer run my 3733mhz XMP profile. Seems a lot of people are having trouble running 3600+ with the new bios.