Problem with Intel AI Boost Driver (code43), Intel Core Ultra 7 265KF Processor

[PriestHunt]

Good Morning,

I have a problem installing the Intel AI Boost driver, which after installation displays a driver error (code 43).

I noticed that the problem occurs when switching the Corsair Vengeance CUDIMM DDR5 8000tm CL38 CMHC48GX5M2X8000C38 memory mode to the XMP profile. When i disable the profile and the memory switches from 8000tm mode to the standard 5600tm mode, everything works fine. How can I solve this problem? i would like to mention that this problem does not only occur on the above Corsair boards, but also on others. The processor i have is an Intel Core Ultra 7 265KF and MSI Z890 Gaming Plus WiFi. Even after enabling the XMP profile and correctly installing the driver, AI boost does not work correctly and throws an error when trying to check the correct operation of the device. Could this be caused by a damaged or bad memory controller in the processor?

with respect Martin...

[ArchieD_Intel]

Hi PriestHunt,

Thank you for reaching out to the Intel Community Forum. To assist us in investigating the issue, please provide the following details:

• When did the issue start?
• What are the troubleshooting steps that you tried so far?
• Have you tried updating the chipset and Intel ME driver?
• Did you do any recent changes?

If you have any questions, please let us know. Thank you.

Best regards,

Archie D.

Intel Customer Support Technician

[PriestHunt]

Good Morning,
thank you for your interest in my problem.

Unfortunately, I have tried everything from drivers, firmware updates, various BIOS configurations and the BIOS update itself, reinstalling Windows 11 Pro. Unfortunately, the problem persists. I have no strength left. I am disappointed with the lack of compatibility of new Intel systems.

[ArchieD_Intel]

Hi PriestHunt,

Thank you for the update. Can you please try updating the Intel® ME driver to the latest version?

If you have any questions, please let me know. Thank you.

Best regards,

Archie D.

Intel Customer Support Technician

[PriestHunt]

Yes, I have tried everything possible, including the latest Intel® Management Engine driver ver. 2514.7.16.0. Unfortunately, this didn't help at all. I'm out of ideas and energy for this problem and I'm thinking about changing the platform.

[ArchieD_Intel]

Hi PriestHunt,

Thank you for the update. Since updating the ME version didn't resolve the issue, can you please try the following steps:

1. Try to install the Intel® NPU Driver from our website. You can visit this link: How to Install or Update the Intel® NPU Driver
2. Test with Different System Loads: Run the system with various applications running in parallel to observe how the driver behaves under different workloads.
3. Modified BIOS Settings: Test with different BIOS configurations, such as adjusting C-States, enabling/disabling Overclocking, and using Default settings to see if any configuration changes impact the NPU performance.
4. Different OS Power Modes: Test in various Windows power modes (e.g., Balanced, High Performance, Power Saver) to see if the issue persists across different power management settings.
5. NPU Driver in Device Manager: Try disabling/enabling the NPU driver in Device Manager to see if this alters the behavior of the integrated graphics and NPU.
6. Reduce Parallel Processes: Test with a reduced number of processes running in parallel to minimize system resource contention and see if that helps resolve the issue.

If you have any issues, please let me know. Thank you.

Best regards,

Archie D.

Intel Customer Support Technician

[cavaliersa]

I also have the NPU showing as an issue in Device Manager, also code 43. I am on a similar configuration to yours, MSI Z890 Tomahawk motherboard, Intel Core Ultra 7 265K processor, and Corsair Dominator DD5 7200 MT/s CL36 (CMP48GX5M2X7200C36) - I wanted to get CUDIMM memory as it unlocks more of this platforms potential but this is very rare to come by here in South Africa.

I've searched around and found quite a lot of people reporting the same on other forums (ASUS, Reddit, Spiceworks). I ultimately resolved mine by changing my XMP profile from 2 to 1. I initially put memory back to standard and the NPU loaded normally, put it to XMP1 and it still loaded, when I put it to XMP2 the NPU showed as a problem again, but when I put it back to XMP1 it worked again.

I cannot say whether this alone resolved the problem as various other things were tried in all sorts of combinations, some of them I'll list below:

• uninstalling and deleting drivers from the driver repository store using RAPR
• trying the initial set of drivers installed
• disabling 200S boost
• changing performance profiles in the BIOS (only relevant and possible once 200S boost is disabled)
• changing PCIE power management settings)

I have restored most of the settings back now, I think the only thing I haven't is the PCIE power management settings. 200S Boost and XMP is enabled again, as otherwise I'm not getting the performance out of the hardware purchased. Technically speaking the XMP2 profile is an overclock profile for the memory modules I have, it pushes them up to 7400 MT/s from the 7200 MT/s it is rated/specced as being, so am happy at least to be getting the stated performance and not have to fall back to "standard" at 4800 MT/s.

Given the postings on other forums with motherboards from different vendors, different memory and different SKU processors I'm inclined to think there is either a hardware issue or limit or an issue in the drivers and firmware of the platform. I say this as I also note that I have the following warning in my Windows System logs for event ID 219, the hardware ID referenced in the message is for that of the NPU, but this warning is appearing even though the device has loaded normally and is working (confirmed by an OpenVINO framework benchmark run in Geekbench AI). It is possible that this message is due to one of the security features in Windows though (e.g. core isolation/memory integrity etc.) as I have seen this elsewhere before with completely different devices and drivers.

---

The driver \Driver\WUDFRd failed to load.
Device: PCI\VEN_8086&DEV_AD03&SUBSYS_7E321462&REV_01\3&11583659&0&20
Status: 0xC0000365

---

I've posted as much information that I think is relevant as I'm hoping you may find commonalities and either resolve your issue or the people at Intel are able to find the issue and note it (that it may give issues in certain configuration setups) or resolve it (if it is a driver/firmware issue).

[PriestHunt]

Nnfortunately, at the moment I have no solution or ideas to solve this problem, everyone tells me to check everything I've already done. I throw up my hands and slowly give up. It's a bit irritating and absurd for me to spend money on not entirely competent equipment. I don't want to go back to AMD, but if Intel continues to act this way, I will unfortunately be inclined to say goodbye to this platform, because I have no words or strength left for what the blue ones have been doing lately... 

But in response to your message I have tried everything you wrote including all types of bios, drivers and reinstallation of the Windows system. I have wasted a lot of time on diagnosing the problem which, as you mentioned, many users are struggling with. I am waiting for some progress in updates until the end of the month, if nothing improves I am getting rid of Intel once and for all and changing the platform, I do not intend to waste time on something that should work as well as it cost me.

It's just a shame that a once prestigious brand is becoming a technological failure day by day and I personally think that AI is nothing good and is actually the perfect key to pure failure.

[ArchieD_Intel]

Hi PriestHunt,

Thank you for the update. I will investigate this and will update you as soon as I have a solution.

Hi cavaliersa, for us to address your concern and to avoid any confusion, please create a separate thread and one of the support will be helping you.

 Best regards,

Archie D.

Intel Customer Support Technician

[ArchieD_Intel]

Hi PriestHunt,

Just to confirm, are you using the latest Intel NPU driver?

Please try:

• Different system load (applications running in parallel)
• Modified BIOS settings: C-States, Overclocking, Default settings
• Different OS power modes
• NPU driver disabled / enabled in the device manager
• Reduce number of processes working in parallel

Please let me know if the issue still persists with the troubleshooting steps above. If you have any issues, please let me know. Thank you.

Best regards,

Archie D.

Intel Customer Support Technician

[PriestHunt]

Thank you for the tip. Unfortunately, I've already tried all the options you mentioned, and they all ended in failure. The problem, however, is the processor's memory controller, which simply doesn't properly handle modules that try to boot from an XMP profile above 7200 MHz. Everything I've managed to set to a fixed frequency of 7200 MHz works correctly above that frequency, resulting in Intel AI boost driver errors.

[ArchieD_Intel]

Hi PriestHunt,

Thank you for the update. I will investigate this again and will update you as soon as possible.

To help me with this, please confirm if the error code doesn't show when using a lower memory frequency.

Best regards,

Archie D.

Intel Customer Support Technician

[PriestHunt]

Thank you for your answer,
yes, the error code stops appearing as soon as I lower the memory clock speed to 7200MHz. Anything above this frequency throws an Intel AI boost driver error.

[PriestHunt]

Hello again,
I just noticed that my motherboard manufacturer released a BIOS update, which I immediately installed. To my surprise, the NPU was working correctly without any errors at full speed with the CUDIMM memory (8000MT). I don't know what the problem was, but the manufacturer states on their website that the update includes fixes:
- Resolve problems with display settings.
- Support Intel MR3.
- Update GOP.

For now, everything is working as it should, with a noticeable performance improvement, which is a big plus...

Best regards,

[GhostMotley]

I have an Intel Core Ultra 7 265KF and MAG Z890 TOMAHAWK WIFI, the latest BIOS for the motherboard I have doesn't include Intel MR3, it only goes to Intel MR1.

Hopefully when MSI update the BIOS for my board, it will solve the issue, as I'm also having NPU errors if DDR5 speed exceeds anything above DDR5-6400, and my CUDIMM kit is rated for DDR5-8200.

[cavaliersa]

I have the same motherboard as you, a new firmware 7E32v1A90 with the MR3 update included has just been released and published.

https://www.msi.com/Motherboard/MAG-Z890-TOMAHAWK-WIFI/support#bios 

I've just updated to it, so far so good, but I'm not running a CUDIMM kit. I've been waiting for a 96 GB kit as 48 GB is just a bit too little for what I need, but since the platform and memory were announced the 96 GB kits seem to have disappeared from being listed everywhere. For now, I have Corsair Dominator Titanium DDR5 7200 MHz memory, but really want CUDIMM to fully leverage the platform's capabilities.

[PriestHunt]

Unfortunately, the problem mentioned in this thread does not concern the motherboard you mentioned, the thread concerns the MSI Z890 Gaming Plus WiFi board.

But referring to the problem itself, Intel Ai Boost works correctly, however, the problems with the full performance of CUDIMM in MSI products have not been solved and it is terribly lame.

Best Regards,

Marcin B.

[cavaliersa]

@PriestHunt - I appreciate and understand that. The issue though I am sure is on the Z890 / 200 platform as I was experiencing the same as you.

My reply was directed at the person immediately above my reply, @GhostMotley who does have the exact motherboard I do, also experiencing the same issue, and maybe resolved with the new BIOS update released for the Tomahawk that now has the MR3 update included. Apologies for any confusion, perhaps I should've tagged the person I was replying to.

[ArchieD_Intel]

Hi PriestHunt,

To expedite the process, I've sent an email to your active email address for the next step of the process.

Please check both your Inbox and Spam folder for my email, and once received, kindly acknowledge it.

Best regards,

Archie D.

Intel Customer Support Technician

[ExtremeMachinez]

**ERROR CODE 43 FIX FOR INTEL GRAPHICS DRIVER AND NPU INTEL AI BOOST DRIVER**

To you and all other people who suffer from this issue, I have been researching this issue on my own (I'm an IT Engineer), doing experiments, digging through event logs, uninstalling and reinstalling drivers, Windows, different versions of both, BIOS settings, etc. I even reached out to Intel at one point, but eventually I stumbled upon the answer. Now I read through many a forum, and webpage, reading through all the things people wanted to check, or have done, etc. and this issue seems to plague mostly anyone using an Ultra series Processor. Doesn't matter the RAM type, or speed, or whether AI 200S Boost is on in BIOS, on any Z870 or Z890 chipset motherboard (no matter the manufacturer, ASUS, MSI, Etc.), etc. It all boils down to one issue, with the error code 43 for both the IGD (Integrated Graphics Driver), and the NPU, or Neural Processor for Intel AI Boost driver. This will fix both issues in one go, if your drivers are installed and up to date.

Perform the following in your BIOS settings:

**Note**

Make sure you are in the advanced tab by pressing F7 on your keyboard, before trying to find the following:

Go to the Advanced Tab on the top of your UEFI Screen.

Then Platform Misc Configuration, which you should see the following:

PCI Express Native Power Management = Enable this

Native ASPM = Enable this

Scroll over to Tool tab.

Open ASUS User Profile Tool.

From there you have these functions:

• Profile Name: Type a custom file name to identify your configuration.

• Save to Profile: Save up to 8 separate custom sets of BIOS settings directly to the motherboard chip.

• Load from Profile: Quickly restore a previously saved custom setup.

• Load/Save Profile from/to USB Drive: Export or import your saved configurations via an external FAT32 USB flash drive, which is vital before performing a BIOS update

Create a profile and save it (usually like profile 1,  give it a name, and set it to load from profile 1 or whichever of the 8 you save it to)

If you want, create a backup of it on a backup drive or USB thumb drive, especially if you need to update BIOS to the latest OEM version, because it will erase all of your settings after you do, so it's a good idea to always have that backup, to restore all your settings at once, instead of trying to remember each individual setting you had, especially if your an advanced user, or like to OC your system.

[ExtremeMachinez]

I wrote this to the OP of this thread, for an ASUS board, as I also have an ASUS board, but this applies to all MB manufacturer types.

My MB Specs and Processor

ASUS ROG MAXIMUS Z890 HERO
Bios
Version
3202
Date
2026-04-29
Motherboard Manufacturer
ASUSTeK COMPUTER INC.
Model
ROG MAXIMUS Z890 HERO
Operating System
Microsoft Windows 11 Pro (64-bit)
Version (Build)
25H2 (10.0.26200)

Processor

Intel Core Ultra9 285K

Manufacturer

Genuine Intel

Description

Intel64 Family 6 Model 198 Stepping 2
Architecturex64
# of Cores24
# of Threads24
Level 2 Cache 40960 KB
Level 3 Cache 36864 KB