FW Desktop PSU Fan not running at all?

So I was following the topics about the noisy PSU fan issues with the FW Desktop.

I recently received my batch 14 unit and was closely monitoring to see if I have the issue too, and so far, I feel like the PSU fan is not running at all.

I also checked the exhaust part near the back bottom power plug and the overall bottom part of the Desktop, and it’s pretty hot, around 60°C. Just wondering if this is normal? As my regular old PC is much cooler.

Note, I haven’t tried any intensive stuff like LLMs or gaming, etc. So far, I have been just setting up my device and using it for a bit of work, nothing very power-intensive. I will try later to see how it behaves and if the fan will kick in while stressing the CPU & GPU. These are just my early impressions. Cheers!

I don’t have the Desktop PSU as I’m using my own case and powersupply. But given how the fan on the CPU doesn’t even spin most of the time. I believe you will have to put the system under load. I believe the PSU is even “oversized” to put the system into a more efficient part of the power curve. (Example 300 watt “bronze” PSU spec’d as a 200 watt “gold” because under 200w the PSU would meet the requirements to be “gold”)

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when the PSU fan turns on… you’ll know. its not quiet at all unfortunately. so yeah. maybe it broke? it turns on without doing anything intensive for me. i think it even turned on when i was in the bios.

edit: confirmed. just went into bios. cpu fan is off. but the PSU fan is very audible.

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That’s what I was thinking too, that’s why I’m afraid that mine is completely dead… Nothing turns on when I go into BIOS, no CPU fan and no PSU fan, I’m not hearing anything. Interesting that we have the same device, but it works completely differently.

What batch were you in? I was 14. Maybe they changed something along the way?

Anyway, I’m mostly done setting up and will try to push it a bit to see what happens and if the PSU fan will kick in, might even install some AAA games to try. And will report back.

ill trade psu’s if you want. lmaooo.

i was batch 13

Especially when you own a 32GB unit, idle power draw is low enough that the fan can stay off for hours at lower room temperatures. You can force the CPU fan to run, to check that it works, and for the PSU fan, a dozen minutes with high load will definitely warm the PSU enough that the fan should start.

I have the 128GB version.

Ok, I tried some gaming, 1440p, maxed out everything. Played for around 1 hour, the CPU fan was spinning up properly, kinda noisy too (I have the Cooler Master - Mobius 120p ARGB).

But still no PSU fan, checked with my finger the opening, I don’t feel any air being pulled there or any air coming out from the back.

The back and bottom parts are getting very hot. After a few seconds of keeping my hand there, it’s getting uncomfortably hot to the touch, so I’m guessing the temps must be over 60°C (I currently don’t have anything to properly measure that temp).

Also tried looking in the opening with a flashlight, but I don’t see anything moving, and the thing is really jam-packed, so not much to see anyway.

Is it possible that this is still not enough to turn on the PSU fan, and it’s running that hot in zero rpm mode?

Here are the details from HWiNFO:

Later edit: Computer started restarting while gaming, all temps in HWiNFO are the same. Checked the event viewer and I have these two errors, nothing else at the time of restart. Does this already suggest PSU issues?

Feels wrong, I have my PSU fan turning on when the supply is very warm, but still cool enough that you can keep a finger on the housing without discomfort, I’d guess 45 C, so in your case I’d expect the fan to run. It could be that the PSU fan curve got adjusted, but also a broken fan.

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I am still working on setting up my desktop that I received earlier this week. 128 GB.

At first, when powered on, the fan would run for a few seconds, then stop. I was a bit concerned and turned it off.

Somone else said it only comes on when hot. So I powered it on, let the machine run all night, and it would go on an off, so may be ok.

Next step, OS install. I pulled up my cheap “build” keyboard, which lights up like a Christmas tree when powered. I verified that it starts.

The weather is nice today, and it will rain tomorrow, so we will continue then.

Tomorrow is F2 day :slight_smile: good luck

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Kernel-Power is a very ambigious error that could be hardware or software related. My Lenovo laptop, which ran fine for years, suddenly had a lot of these errors. After a while they stopped, tho. Quite a few Windows updates in between. I’m still not sure if it was a mosfet or a sensor or code

Did you check the dump file?

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Yup, looked for it, but there is no dump file. Which would confirm that it lost power instantly and did not have time to write it… It really sounds like PSU fail, but it can be a motherboard or APU issue too. Or even some software, as you say, but in that case, there should be other errors too, and dump files.

Spoken like a true poet, as long as the CPU fan spins at all it is good. The PSU fan is a little trickier, the first time I heard it I thought it was my room fan making noise. But then I realize it’s a higher pitched sound, more like a kitchen appliance, that makes noise. I’m still getting used to the PSU fan so I can ignore this too.

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It may be related to Bitlocker or SSD as well. Very painful process to debug

Your Kernel-Power error is a post-event error ‘assumption’ so you’ll need to back-track through events preceeding this reboot error to find the actual trigger. Again, a pain in the …

Feeling for you

Checked everything from the first day when I first powered it on till today, and here are my findings:

Indeed, there are some BitLocker errors, but they are all for drive F:\ which I don’t have. I mean, I had connected to it portable hard drives and USB memory sticks, but not at that time when the error occurred, which is weird… Thoughts?

On the other hand, I have a ton of “DistributedCOM” errors daily, which I have no clue what they mean. Does this have anything to do with my issue? You can see about 10% of them in the screenshot above.

I also checked the Reliability Monitor and found some weird stuff. There is a “Hardware error” on the first day I turned it on, which I’m not sure I understand what it means… I don’t remember anything wrong. The first few days, I just set it up, installed the OS, drivers, and all the software I needed.

I’m really trying to understand and solve whatever the issue might be, as this will be mostly my work PC, and I will have a ton of important stuff on it.

What else should I check/do? Should I run some specific stress tests for CPU/GPU? If so, what software do you guys recommend running?

My point about bitlocker is that it can stop the dump file being written. I doubt it’s the cause of your kernal event

You need to get a copy of a dump file to Microsoft support. This is a similar (not the same, tho) issue to yours which will give you an idea of what you need to collect and make available. Open a question, outline your hardware config, and ask LB for help. Then DM him the link to your dump file

Update: after submitting all required info to FW support, they said I need a new PSU.

Is the PSU repairable? Assume hypothetically the fan is ok but breaks after a year of use, can you just buy a fan and install it instead of buying another PSU?

I did not take mine apart yet, and I probably won’t after reading this discussion here. Noisy PSU fan - #407 by AlexWinter

The “Risk of injury or death” is hyperbolic. Seriously it’s a low power cooling fan not a fan-jet.

Spicy psu capacitors are no joke