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July 27th, 2021 06:00

Cooling fan noise in my XPS 13 7390 2-in-1


I've been having problems with one of the two cooling fans of my Dell XPS 13 7390 2-in-1. 

One year since I've bought it, it started to have a loud noise as a bee stuck inside then suddenly got shut. After that, I realized that the right fan stopped working. In fact, during a reboot, a message told me that there was a problem with the fan and needed "my immediate attention". So I decided to open and clean with compressed air (since the warranty had expired). I've managed to fix the break. But, it has only been six months that the system has broken down again with the same symptoms. I've intervened in the same way and then again more frequently the same fan fails.

Last time the noise was even more fun (I've made a recording), a lot of vibrations, sure there is a mechanical obstruction. Every time I open the back cover to access it directly, I can see, with the touch of my finger, that the rotation is not smooth as the healthy fan.

Now, I can keep using the PC but with reduced performance; I think I need to replace the breaking part and I don't know where to buy it. Can someone help me?

October 5th, 2021 20:00

I had a similar situation with a loud fan noise followed by an error message at boot time.  I'm also out of warranty, so I opened up the case and blew out the fans which fixed the problem.  I thought I was done with this, but maybe the fan will fail again in a few months like yours did.  I found a replacement dual fan and heatsink unit on eBay (the part number is 0VMDK), but the service manual for the laptop doesn't say how to remove the old one.  I asked the seller if they could tell me how to get the old one off, but I haven't heard back from them yet.

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22.4K Posts

October 6th, 2021 05:00

There are detailed instructions for removing the heatsink assembly (note -- separate from removing just the heatsink itself) in the service manual.


1 Message

December 21st, 2021 07:00

@ejn63 Incorrect. You are referring to the 7390 clamshell model. The post is about the 7390 2-in-1. There are not instructions in the service manual for how to remove any combination of the fans or heatsink. Here is the proper link to the service documents library:

1 Message

March 21st, 2022 10:00

I had the same problem. Opened and dusted fans with compressed air and fan continues to work nonstop regardless of level of computing activity. Am trying this next:

(reinstall older bio version, reset power settings) 

Fingers crossed. 

August 31st, 2022 15:00

Similar issue. Noise would come and go. Only recently I started seeing actual fan failure errors. Opened 'er up, carefully cleaned the gunk off the two fan blades, and (for now) I'm good. Unfortunately, when we're not really filtering incoming air, this will keep happening. 

October 14th, 2022 06:00

Yep, it's back. It's clear from all the posts related to this topic that these fans were lemons. Normally, I'd chalk this up to the physical wear and tear a laptop takes, but with the pandemic and working from home, this thing's been sitting on a clean desk for 95% of its life. I'm out of warranty at this point, and I don't think Dell will do the right thing here -- guess I'm off to eBay or the like to find a replacement part and hope it's any better than the original...

31 Posts

March 3rd, 2023 04:00

Yep here's another one after ~3 years. Granted, I load this thing heavy. Gonna look for spare parts then.

31 Posts

March 7th, 2023 08:00

Looks like there's a couple of versions of 0VMDK, possibly shared with 9310. AFAICT specific to our machine is AT2C9001DT0.

31 Posts

March 7th, 2023 10:00

And from 0VDFK8, I think Sunon EG50030S1-C170 and C180 could be a drop-in replacement. At least I can't tell any difference:Delta ND55C43Delta ND55C43Sunon EG50030S1Sunon EG50030S1

31 Posts

March 7th, 2023 10:00

Further detective work seems to reveal that 0VDFK8 AT2WX002SCL might be compatible.

But even if not (for the whole unit), fans can be found separately: Delta ND55C43-18M14 and ND55C44-18M15

(Confirmed by a shot from disassembly)

31 Posts

April 10th, 2023 05:00

Left: Sunon - Right: Delta (original)Left: Sunon - Right: Delta (original)

Today was the swap day

I see the difference now why they replaced original Delta ND55 fan with a "secured blades" Sunon. If you're swapping, I'd recommend the reinforced Sunon.

With no accidents, it's a fairly comfortable ~1h job. Just follow the Service Manual PDF for how to remove the System Board, because you need to access fan body attachment screws from both sides of the board. Not complicated - you don't have to disassemble WiFi, nor heatsink.

2 Posts

October 18th, 2023 13:07

@lkraav​ Which part no. it is and where did you buy it from, i have several latitude 7390 2 in 1 having the weird squeaky sounds.

1 Message

November 29th, 2023 13:15

Please can I order for a single unit?

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