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December 1st, 2025 16:42
Aurora R16 - CPU fan detect failure
I have an Aurora R16 (out of warranty) with no hardware or software changes. Fans were running on high, so I rebooted the PC. Upon reboot, the BIOS showed the error "CPU fan detect failure". I pulled the side off, and the AIO cooler fans are running. I unplugged the AIO cooler from the motherboard and plugged it back in, but the error is still showing.
What part can I use to replace the factory AIO cooler? I don't see it on the part store when I search for my service tag. Or, is there something else I can try?
beems
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December 1st, 2025 18:48
@ejn63 Yes, I was hoping to buy new as I've had a bad experience buying used from eBay in the past. I did find a few on eBay but all were listed as used.
I ended up buying a Corsair Nautilus 240 with the hopes I can rig it up to the OEM mount in the R16: https://www.amazon.com/dp/B0DF7DH5Z5?smid=ATVPDKIKX0DER&ref_=chk_typ_imgToDp&th=1. If I get that working, I will try to remember to post back here in case others stumble upon this in the future.
beems
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December 10th, 2025 20:46
UPDATE: That AIO mounts just perfect using the bracket from the OEM cooler and runs just fine. I did buy more thermal paste and added a small X across the CPU before mounting the cooler (which did come with some paste affixed already).
The only drawback is that the fan cables do not reach the OEM pins without extender cables, so pick up an extra one of those as well because the cooler linked above only contains one extension cable. So, currently, I have them daisy-chained and on boot I get an error that FAN2 is not detected.
@Wario64 : My fans ran on 100% at first boot, but I just ignored it for a couple of hours while I got work done. After rebooting, they are back at normal speed.
(edited)
beems
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December 1st, 2025 17:20
UPDATE: The fans are powered separately and both are working, so it is just the AOI cooler that I need to replace.
ejn63
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December 1st, 2025 18:32
Do you mean this assembly?
https://www.ebay.com/p/7064591957
Wario64
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December 2nd, 2025 16:09
The same thing literally just happened to me this morning. Very frustrating, seems like a very common issue due to cheap parts unless this is a recent bios issue. Please let me know if you have any luck, I’m about to go purchase a replacement as well due to supports lead time being quite lengthy.
Wario64
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December 2nd, 2025 23:29
I wanted to provide an update. I purchased the same AIO you did and rigged it up. After doing so, the fans just run at maximum speed and I can't seem to get them to automatically run. @beems
ProfessorW00d
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December 3rd, 2025 01:28
@Wario64 clear CMOS by holding in the power button for 30 seconds.
How did you connect all of the cables . . . drop some photos of the inside of your rig.
Demanred99
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December 28th, 2025 04:15
@beems Could you please share the setup photos of your OEM AIO? I'm facing the same issue, and Dell Customer Service told me I need to wait 25–30 days for the replacement AIO pump for the R16. I'd really prefer not to wait that long, so it would be a huge help if you could share your photos. Thanks in advance!