Unsolved
1 Rookie
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2 Posts
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83
August 9th, 2025 15:02
Dell Optiplex 390. No boot sequence option
My computer is failing to boot.
I tried to reset boot settings but the problem still persist.
I tried to change boot sequence but the boot sequence is not showing any option in the catalogue box. What's the matter?
No Events found!
redxps630
9 Legend
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15.3K Posts
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August 9th, 2025 16:51
you need to connect a UEFI bootable media such as a USB to pc, then manually add the boot option in the 390 bios which was a primitive version similar to 790.
Patrick Chauluka
1 Rookie
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2 Posts
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August 10th, 2025 05:27
@redxps630
How should I do it? Should I download a file for bios update or what ? Your answer is incomplete
redxps630
9 Legend
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15.3K Posts
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August 10th, 2025 16:32
this is what I did in 790
https://www.dell.com/community/en/conversations/optiplex-desktops/how-to-add-uefi-boot-drive-to-optiplex-790-bios/6578a1df52f72c729f4de36a?keyword=790
gdomi0270
1 Rookie
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3 Posts
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August 12th, 2025 22:10
You need to enter Bios Settings and make some changes, you can reset all bios settings to default to clear all the errors. When you Switch on your Pc just press Escape one time and then shows all the setting Options
bradthetechnut
7 Technologist
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9.2K Posts
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August 12th, 2025 22:16
Could the HDD/SSD have failed?
gdomi0270
1 Rookie
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3 Posts
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August 12th, 2025 22:24
Can Dell Optiplex 3010 be Modified for a Gaming Computer, haven’t tried yet but, I’m thinking to make some Upgrades safe way. I know it’s an Old Desktop Computer but I do really like this one. Optiplex D07D models.
gdomi0270
1 Rookie
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3 Posts
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August 12th, 2025 22:26
@Patrick Chauluka
I will explain every step later on.
And I’m sure you can do it and make it work spot on.
bradthetechnut
7 Technologist
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9.2K Posts
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August 13th, 2025 23:20
Something I didn't think of sooner - first try changing the size 2032 CMOS battery. Bad batteries affect BIOS and PC operation. I'd give that a try and go from there. I'm guessing the battery is 5+ years old?