Maximus XI Hero and G.Skill 4133 Mhz Cl19 booting problem

[Ch1re]

Hello,

I have a problem with: Maximus XI Hero (Wi-Fi) + 9900k + G.Skill 4133 Mhz Cl19 (F4-4133C19D-16GTZR - listed on the QVL) combo.
With enabled XMP, it's almost impossible to pass the booting process - 9 out of 10 attempts ends with POST code 23.
However, in rare cases when it has passed booting process computer was 100% stable - also booting problem doesn't exist when I disable one of the RAM channel by BIOS which makes that RAM working in single channel mode.

It seems that the memory training is not able to handle that RAM even though it is listed on the QVL.

BIOS: 0602

[Melkor]

Raja@ASUS wrote:
You can also try this test BIOS: Maximus XI Hero test build 0037


May not help, though, because there are many permutations and we cannot fix issues due to weak memory controller etc.

Hello,

I know it's a bit old thread but I want to thank You very much for this bios 🙂 at 0602 it was pain in the a** to get my G.Skill Trident Z 3600 CL17 2x16GB to work, when selecting XMP it would stuck at boot with 23 code, tinkering manually was better because I could boot, do some benchmarks but crashing games like BF5 or AC Origins, or sometimes hang at the reboot with 23 code. After updating to Your bios everything is working like it should, works with just selecting XMP profile, games are stable for few days already so it's a good sign 😉 once again, thanks!

[Pun_VI]

U can’t. Chk my post below.
There are problem with maximus xi 4 dimms slot. Rated as 4400 oc but i can run only 4200 mhz. Need some bios update.
Unlike 2 dimm motherboard( gene , strix i gaming , up comming apex ) that can run 4600mhz xmp without any effort.
Meg godlike and so much cheaper gig aorus can run 4500 xmp in one click. A*lot better than maximus xi extreme.
What wrong with asus? Fix it pls.*

[Stagefire]

I Have a 16 GB Dual Kit Gskill 4400 cl18 and i Only Manage to be stable on the Hero XI with downclock the Ram to 4000Mhz.
Its not Maximus its Medimus but better then Lowmus. But for this Premium Category and Premium Prices Point i hopped for more.

And Yeah the 4400 OC missleaded me to .. its Only with 4 Dimms installed but this Info you can only find on the ASUS Website not on the Mainboard Package or else
I Really hope that a Bios Update makes as Happy and make the Board from Medimus to Maximus 🙂

[Silent_Scone]

Stagefire wrote:
I Have a 16 GB Dual Kit Gskill 4400 cl18 and i Only Manage to be stable on the Hero XI with downclock the Ram to 4000Mhz.
Its not Maximus its Medimus but better then Lowmus. But for this Premium Category and Premium Prices Point i hopped for more.

And Yeah the 4400 OC missleaded me to .. its Only with 4 Dimms installed but this Info you can only find on the ASUS Website not on the Mainboard Package or else
I Really hope that a Bios Update makes as Happy and make the Board from Medimus to Maximus 🙂

There are numerous factors at play at those speeds. You're asking a lot of CPU at that frequency with a 4 DIMM topology layout, this isn't something that is specific to one vendor. If not looking to dial things in manually always consult the QVL.

[Raja]

Stagefire wrote:
I Have a 16 GB Dual Kit Gskill 4400 cl18 and i Only Manage to be stable on the Hero XI with downclock the Ram to 4000Mhz.
Its not Maximus its Medimus but better then Lowmus. But for this Premium Category and Premium Prices Point i hopped for more.

And Yeah the 4400 OC missleaded me to .. its Only with 4 Dimms installed but this Info you can only find on the ASUS Website not on the Mainboard Package or else
I Really hope that a Bios Update makes as Happy and make the Board from Medimus to Maximus 🙂

The four-Dimm Maximus board’s feature a T-Topology trace layout, which is better for fully populated configs. If you run a two-dimm kit on a T-topology motherboard, the maximum stable frequency will be two to three ratios below the maximum rated frequency for four-DIMM kits. This cannot be fixed by a BIOS update. It’s a limitation of T-Topology.

Even when using four-DIMM kits, I always advise that users subtract at least a few ratios off the maximum memory frequency the board is rated for. There are many variables at play so opting for the maximum frequency isn’t wise if you favour ease of use.

[Raja]

Pun_VI wrote:
U can’t. Chk my post below.
There are problem with maximus xi 4 dimms slot. Rated as 4400 oc but i can run only 4200 mhz. Need some bios update.
Unlike 2 dimm motherboard( gene , strix i gaming , up comming apex ) that can run 4600mhz xmp without any effort.
Meg godlike and so much cheaper gig aorus can run 4500 xmp in one click. A*lot better than maximus xi extreme.
What wrong with asus? Fix it pls.*

Please write a clear post that states which memory kit you are using (list the part number of the memory kit).

[Twilightlifes]

Buy a crosshair vi hero. And I want to update the bios so that it recognizes 4000 mhz of memory.
I wonder if a rizen 1800x will still recognize me
Later I will buy a rizen 3800x
But for the moment I will use a 1800x

[nickolp1974]

I wouldn't be to hasty guys in wagging the finger at ASUS as anything over 4k is good and not being able to run XMP at 4400+ is more than likely down to your cpu's IMC and not the board. you probably can get it to run, it will just take time tweaking timings and voltages. I can run 4400mhz with ease on my Gene but 4500 is a no go and I should say that's my limit with this cpu and my current cooling.

There's lots of variables to take into account it ain't just the board!

[JustinThyme]

XMP is a gamble past 3800. I've found I get best results by manual tuning, dropping the clock and lowering the CL so response is even better!

[HiVizMan]

I have had no problems getting XMP profiles to work with my Maximus XI Extreme. Booted up with some 8Pack Edition Team Extreem kits (3 off) without any problems. 4600Mhz is big ask for most CPU's. I happen to have a very good IMC on this processor so was not expecting anything else.