PC Building

[rajan95]

My PC is bluescreening during idle and the event viewer says Kernel-Power 41 at the time of the crash. I did some more digging around this issue and it seems as though the 5950x doesn't pair too well with B550 boards? The crashes also occur when I game (in the middle of gameplay).

PC Specs:

• Motherboard: MSI MPG B550 GAMING EDGE

• AMD Ryzen 9 5950x 16 Core Processor

• NVIDIA GeForce RTX 4080s 16GB

• Corsair DDR4 32GB RAM (3600 -> Set to 3200 with XMP)

• 2TB SSD nvme

• Power Supply: Corsair TX750M 80 Plus Gold

• CPU Cooler: Corsair Hydro 100i

BIOS Settings:

• Idle Power State Management: Typical

• Global C State: Disabled

[Nixfox]

If there was CPU issue, you would see it in windows event as core/s failing errors.

5950x not pairing well with any supported platform would be something well known. Don't waste your time on that.

My rule of thumb is: when you have quality components but experiencing BSODs and weird shutdowns, it is almost guaranteed that your problem is PSU.

[rajan95]

Oh really? Windows does feel pretty sluggish too (if that is anything to go by). Is there anyway I can check if the PSU is at fault?

[Nixfox]

Sluggish Windows has nothing to do with PSU. When PSU makes problems it's going to be weird shutdowns, BSODs, confusing things leading to system misbehavior.

The hardest to detect because PSU market is wild west. There are many monitoring mechanism integrated in Motherboards, CPU and GPU but little in PSU. So it makes it very difficult to locate the PSU problem directly. What you can is isolating the problem indirectly.

GPU, RAM and CPU stress test will give you pretty accurate picture of their status. What is left is PSU, the most underestimated component.

[rajan95]

That's interesting to know. If it is anything to go by I did use Memory Diagnostic Tool and it did suggest I have an issue with my memory (with XMP enabled - 3200Mhz). I did it again without and it didn't flag any issues. For the third time I did it again with XMP enabled but on auto and no issues were flagged. Not sure how reliable this tool is however lol. 

I could purchase an 800w PSU from Amazon as a test and return it if issues persist.  

[BigAl01]

I would expect that your PSU cannot support the load of your high power CPU and the RTX 4080(s).  Do you really have two GPUs installed?  You should be using a 1200 Watt quality PSU for that!

[rajan95]

That's interesting. When I put the specs on PC Part Picker it goes up to 564w. 

https://uk.pcpartpicker.com/list/Z4jCdb

[BigAl01]

The load on the PSU is not a constant.  It will vary quite a bit when the GPU and CPU are under pressure to run your games.  There will be spikes and surges of power demanded from the PSU, and that is why you want the 'headroom' to handle these power demands.  I learned a long time ago to buy a quality PSU with lots of headroom for my expected load.  I have also avoided a lot of the problems I see happening in this forum too.  

[rajan95]

I'm getting a new 1,000w PSU to test tomorrow so will update if this helps! Thanks a ton for the info! 

[rajan95]

I upgraded the PSU to a RM1 1000x Shift PSU and sadly it did not resolve the issue. I am getting BLSOD with error codes for memory management OR LRQL not less or equal. Super strange. 

[BigAl01]

Swap your memory sticks around on the motherboard.  You might have a bad memory stick.

[rajan95]

Will give this a go and update 👍 The BLSOD error code was memory management if that means anything - I am noticing that one of the memory cards has a red end so i'll start with that one 😅

[Scarletioshub]

The Kernel-Power 41 error is often related to power or hardware issues, and it sounds like you’ve narrowed it down to a possible compatibility issue with the 5950X and your B550 board. It’s worth checking if your motherboard’s BIOS is up to date, as newer updates often improve compatibility with high-end CPUs like the 5950X. Also, consider re-enabling the Global C State to see if that stabilizes things. The PSU is powerful enough, but ensure all power cables are properly connected and that your system is not drawing more power than expected, especially under load. If the problem persists, it could be useful to test with different RAM settings or even try a different power supply to rule out any potential issues there.

[rajan95]

I did update the BIOS to the most recent version. I'll enable C State and crosscheck the wires. How can I see if the system is drawing more power than expected? I do have HWINFO installed and the CPU temps do seem to start around 75-70 on boot. 

[rajan95]

I did have this PSU for 4ish years so could it be a possibility that it can no longer handle the GPU & CPU as the PSU degrades over time?