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My Ram doesn't running at Maximum Xmp speed q-code 23 or d5

fzoli1985
Level 7

‎03-10-2019 07:00 AM - last edited on ‎03-06-2024 08:33 PM by Community Admin

Hi,

I have ROG MAXIMUS XI HERO (WI-FI) Call of Duty - Black Ops 4 Edition
and my Memory kit is: (Memory Profile: 3600MHz, 17-19-19, 1.35V; 3000MHz, 15-17-17, 1.35V)
https://www.kingston.com/dataSheets/HX436C17PB3K2_32.pdf

The Ram kit doesn't run at 3600Mhz in Xmp I or Xmp II profile.
In the beginning the q-code write 23 or d5 error and fail to boot.
I have the latest bios Version 0805.
It only run at 3000 mhz Xmp I or Xmp II profile.
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16 REPLIES 16

mdzcpa
Level 12

‎03-10-2019 08:50 AM

Is that memory on the QVL for the Hero XI?

The Maximus XI Z390 boards run best with 4 DIMMs populated due to the topology design. You may need to custom tune those sticks. Have you tried adjusting System Agent and IO voltage?
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fzoli1985
Level 7
In response to mdzcpa

‎03-10-2019 09:18 AM

Hi,

Yes my memory is on the QVL list.

Yes i tried adjusting voltage.

the same error
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Razielba
Level 7
In response to mdzcpa

‎03-10-2019 09:19 AM

Try like this:
XMP 2
VDRAM 1.35
VOCIO 1.15
VCCSA 1.2
Asus multi core Enhancement Disable
Let me know if it goes
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Razielba
Level 7
In response to Razielba

‎03-10-2019 09:20 AM

To avoid fakeboot
VCCIO must be as I wrote to you
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fzoli1985
Level 7
In response to Razielba

‎03-10-2019 12:06 PM

Hi,
I Tried but q-code d5 error.
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Silent_Scone
Super Moderator

‎03-10-2019 01:29 PM

Two sticks can be tough on T-Topology boards as stated already.


Try both Maximus Tweak Modes underneath the Dram Timing page. They're there for times such as this as they can help with compatibility on certain modules.

Set VCCSA and VCCIO to 1.2v
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090
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fzoli1985
Level 7
In response to Silent_Scone

‎03-10-2019 03:46 PM

Hi,
I tried maximus tweak mode 2
with 3600mhz Xmp I and Xmp II
And booting, but the windows 10
Not boot.It crashed with blue screen.
0xc0000221 error code. Or system service exception error
Or else error code.
But with lower speed 3000mhz Xmp is good with default values
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Silent_Scone
Super Moderator
In response to fzoli1985

‎03-11-2019 02:17 AM

fzoli1985 wrote:
Hi,
I tried maximus tweak mode 2
with 3600mhz Xmp I and Xmp II
And booting, but the windows 10
Not boot.It crashed with blue screen.
0xc0000221 error code. Or system service exception error
Or else error code.
But with lower speed 3000mhz Xmp is good with default values


As said, two DIMMs can be tough. Confirm memory stability at 3000MHz with HCI Memtest or RamTest. After you've established a baseline for stability, come back to confirm.

https://hcidesign.com/memtest/

https://www.karhusoftware.com/ramtest/

HCI Memtest: Open an instance for each CPU thread and divide 90% of available memory between them.


I'd recommend RamTest for ease of use, but it's not free.
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090
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jab383
Level 13

‎03-11-2019 06:02 AM

Some board/CPU/RAM combinations need a little more DRAM voltage to get to full XMP speed. You could try the following:

After loading XMP settings, in BIOS overwrite the DRAM Voltage setting with 1.40volts. If that boots, run one of the above stability tests - for full stability 24/7, I use HCI. If HCI reaches 200% coverage, that's plenty good enough. You can try to reduce DRAM voltage in steps of .01volts until instability shows in the tests, then increase to the lowest step that works.

If not fully stable at 1.40, try increasing DRAM voltage .01 volts per step, stepping your way up to 1.45 volts. That voltage should not hurt the RAMs - there are many kits with XMP profiles using that level.
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