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Disable Dell SupportAssist | Pre-Boot System Performance Check
Hi,
I was wondering if somebody would be willing to help me out with a query.
I recently replaced the heatsink fan in my Inspiron 3671 Desktop due to thermal issues.
After turning my desktop on, my system booted into the Dell SupportAssist | Pre-Boot System Performance Check.
The check ran a scan automatically and after completion displayed a 'Critical Error Message' saying that 'The Processor Fan failed to respond correctly'.
This is FALSE since the fan span completely fine when I turned the system on.
My question is, how do I disable Dell SupportAssist | Pre-Boot System Performance Check.
And, if I do disable it, what are the downsides.
Hopefully, somebody can help.
Many Thanks,
TS
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Posted April 24th, 2021 04:00
Hi @speedstep ,
Thank you for your reply.
With regards to my desktop, how would I go about disabling this feature.
27572
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Posted April 24th, 2021 05:00
The original processor fan had a Blue, Yellow, Red, Black standard, whereas my current Noctua fan has a Black, Yellow, Green, Blue standard.
27579
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Posted April 24th, 2021 05:00
My system is a Dell Inspiron 3671 Desktop.
I replaced the old processor fan with a Noctua 80mm fan.
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Posted April 24th, 2021 05:00
There are ZERO options to disable this EVER. Either use the proper fan or Re wire a fan to be Dell standard. It may already be too late since you plugged a standard fan onto the Dell header.
There is even a Dell to standard adapter cable.
https://www.amazon.com/Pocaton-Female-Socket-Connector-Cooling/dp/B073XJV5L9
You did not say which exact model you have.
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Posted April 24th, 2021 09:00
noctua is not wired for some dell models
its very likely you fried your fan header permanently due to dell vs standard
The other issue can be the fan doesn't ever reach 2500 rpm as its limited to 1700 Rpm.
There is no support for noctua from dell.
This thread is done.
I do not have your original fan so I dont know if its standard or Dell wonky wired
this is not standard fpr dell as the wire order is different
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Posted April 25th, 2021 00:00
Is there no Noctua 4pin to Dell 3pin adapter?
If not does anyone else in the community mind helping?
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Posted April 25th, 2021 02:00
I have a new idea.
On my motherboard, there's a spare SATA PWR port.
Could I use this to power a separate Noctua fan? Is that possible?
SATA PWR PORT
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Posted April 25th, 2021 03:00
Not sure there is a 4 pin to 3 pin because thats not needed. That of course assumes standard wired fans.
You put the 4 pin on the 3 pin header with the blue PWM wire not working.
Putting noctua fan on sata power will NOT resolve the error message. DELL cable plugs into the sata power connector on the motherboard to add 2 sata power connections.
https://www.amazon.com/dp/B071CG67ZC
https://www.amazon.com/dp/B07MM2GHY7
Dell does not use standard wiring or Pinouts on their fan headers.
Dell fan wires are deliberately swapped round.
PWM and Tach and 12v and Ground.
For 3 wire they reverse 12v and tach.
Black Red White not
Black White Red
This can lead to self destruction for a dell fan on standard motherboard or the other way round.
DELL WONKY
Note Swapped wires
NOTE This is sometimes dell and othertimes not.
Dell MB
Pin NumberFunction
Dell wire color
Std Fan
Pin NumberStd Fan wire color
Description
1
Sens (TACH)
White/Yellow
3
Green
Sens (TACH)
2
+12v
Red
2
Yellow
+12v
3
Gnd
Black
1
Black
Gnd
4
PWM
Blue
4
Blue
PWM
5
Key
unused
DELL SWAPS PINS AROUND
THIS IS Standard INTEL not DELL
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Posted May 28th, 2021 09:00
I use an Inspiron 3670.The motherboard (0R6JMP) with the 4pin fan power-output is probably almost same to the 3671, which was your machine (with a different chipset).
I replaced the processor-fan with a generic one as you.
At my booting PC, SOMETIMES, the pre-boot scanning, which you said, starts and the critical error-message same as you is displayed. Is there unknown trigger for me?As the booting time, it takes 2-3 minutes with ePSA.However, the processor fan seems to be doing its job well.There might be a same situation between us.I disabled the pre-boot scanning i.e. "DELL ePSA" via the following method, the ePSE then never be up and running again.
1. Enter the bios
2. Disable the secure boot3. Choose the AUDIT modeYou may have a worth to try the above, if the your fans correctly done itself.
speedstep
11 Legend
•
46969 Posts
27592
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Posted April 24th, 2021 04:00
Yes but the old fan and the new fan are wired differently.
Without the proper wiring or fan this error NEVER goes away. Worse sometimes the mis wiring damages the sensor on the motherboard permanently.
Dell MB
Pin Number
Function
Dell wire color
Std Fan
Pin Number
Std Fan wire color
Description
1
Sens (TACH)
White/Yellow
3
Green
Sens (TACH)
2
+12v
Red
2
Yellow
+12v
3
Gnd
Black
1
Black
Gnd
4
PWM
Blue
4
Blue
PWM
5
Key
unused