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Dell optiplex 990 heatsink Heatsink not Detected
I have a Dell Optiplex 990 when I start my PC. It shows the message that Heatsink is not detected, However, this model does not have a heatsink ,
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I have a Dell Optiplex 990 when I start my PC. It shows the message that Heatsink is not detected, However, this model does not have a heatsink ,
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Chino de Oro
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May 2nd, 2024 18:14
Re: However, this model does not have a heatsink
Did you change the OEM heatsink + fan to a liquid cool? The OptiPlex 990 were shipped with heatsink.
From the BIOS firmware page, scroll down and expand the installation instructions https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=c10t9&oscode=ww1&productcode=optiplex-990
Danish78600
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May 2nd, 2024 17:52
my dell 990 mt bios version is A03 when i tried to update it says please make sure that your current version is A05, after that i tried to install A05 but there is another Error shows up "Error unable to locate a BIOS Update Payload" can any one help
Danish78600
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May 8th, 2024 15:22
"Error unable to locate a BIOS Update Payload" can any one help
Danish78600
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May 8th, 2024 15:23
@Chino de Oro that's error shows when i try to update Bios version A05
Danish78600
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May 8th, 2024 15:24
@Chino de Oro whenever i try to update my bios update at A24 it says first update your bios At A05
Danish78600
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May 8th, 2024 15:26
@Chino de Oro Current BIOS version is A03, it was installed by mistake by me.
Chino de Oro
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May 8th, 2024 20:16
Was the problem solved? Were you able to install the latest A24 BIOS?
Scroll down the page and you will find installation instruction. It can be flashed in Windows or by using a USB drive. You can skip several BIOS (4 or 5) or just flash straight to the latest one, your choice.
bradthetechnut
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May 9th, 2024 00:03
Important notes from Dell (screengrab):
If you're having trouble updating BIOS, a couple of pointers. 1. Replace the size 2032 CMOS battery if it hasn't been done in the last 5 years. 2. If the system ain't broke and is otherwise working fine, leave it rather than chance bricking the MB.
bradthetechnut
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May 9th, 2024 00:16
Check out this post: https://www.dell.com/community/en/conversations/optiplex-desktops/optiplex-990-with-windows-11-24h2-works-like-a-charme/663b6bf1831a4d706f266248
It also talks about upgrading BIOS.
Danish78600
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May 9th, 2024 18:44
@Chino de Oro I tried it many times, but whenever I try to install any updated version like A11 or above A24, the error appear please make sure that your current bios version is A05
Chino de Oro
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May 9th, 2024 19:51
That was the first one from bottom of the list in my previous post. Run that first, then pacing a few higher version or skipping all the way is up to you.