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- DELL OPTIPLEX 990BIOS · 8.00 MB · 12 May 2025BIOS—8.00 MB
- DELL OPTIPLEX 990BIOS · 8.00 MB · 10 May 2025BIOS—8.00 MB
- Dell Optiplex 990BIOS · 2.00 MB · 10 May 2025BIOS bin—2.00 MB
- DELL OPTIPLEX 990BIOS · 4.63 MB · 15 Dec 2024BIOS rar—4.63 MB
- Dell Optiplex 990Archive · 9.58 MB · 20 Apr 2022Archive rar—9.58 MB
- dell optiplex 990 seriesBIOS · 8.00 MB · 10 May 2025BIOS bin—8.00 MB
- dell optiplex 990 seriesArchive · 4.71 MB · 29 Oct 2019Archive rar—4.71 MB
- Dell OptiPlex 990 - Dell KATSIKI-USFF rA00Schematic · 1.83 MB · 25 Jul 2022Schematic pdf—1.83 MB
- DELL OPTIPLEX 990 bios (Luirons Bios)BIOS · 4.63 MB · 23 Feb 2021BIOS rar—4.63 MB
- DELL OPTIPLEX 990 E93839 KA0121 2MB BIOSBIOS · 2.00 MB · 10 May 2025BIOS bin—2.00 MB
- DELL OPTIPLEX 990 KATSIKI USFF (REV A00) PDFSchematic · 3.67 MB · 16 Nov 2022Schematic pdf—3.67 MB
- DELL OPTIPLEX 990 bios telegram BIOS Repair-2025-09-16BIOS · 4.94 MB · 20 Sept 2025BIOS zip—4.94 MB
- DELL OPTIPLEX 990 E93839 KA0121 2MB BIOS telegram BIOS Repair 2025BIOS · 286 KB · 20 Sept 2025BIOS zip—286 KB
- Dell OptiPlex 990 Early2011A 18 2MB & 8MB BIOS telegram BIOS RepairBIOS · 5.17 MB · 20 Sept 2025BIOS zip—5.17 MB
- DELL OPTIPLEX 990 E93839 KAO120 25Q16 2MB BIOS telegram BIOS RepairBIOS · 285 KB · 20 Sept 2025BIOS zip—285 KB
- Dell OptiPlex 990 System BIOS, A19 2MB 4MBBIOS · 6.34 MB · 6 Jan 2026BIOS rar—6.34 MB
- Dell OptiPlex 990 System BIOS, A19BIOS · 6.57 MB · 29 Dec 2023BIOS rar—6.57 MB
- AFS..DELL OPTIPLEX 990 KATSIKI USFF (REV A00) PDF
Schematic for the Dell OptiPlex 990 ultra small form factor (USFF) system board, code name Katsiki, revision A00, supplied as a PDF.
Schematic · 1.23 MB · 23 Feb 2024Schematic pdf—1.23 MB - DELL OPTIPLEX 990 KATSIKI USFF (REV A00) PDF
Schematic diagram in PDF form for the Dell OptiPlex 990 in its ultra small form factor, board code name Katsiki, revision A00, packed in a RAR.
Schematic · 3.63 MB · 22 Feb 2022Schematic rar—3.63 MB - DELL OPTIPLEX 990 E93839 KA0121 2MB BIOS
BIOS image for the Dell OptiPlex 990 desktop, with the name listing E93839 and KA0121 codes and a 2MB chip size.
BIOS · 177 KB · 28 Dec 2021BIOS rar—177 KB - DELL OPTIPLEX 990 bios
BIOS package for the Dell OptiPlex 990 desktop, supplied as a 4.81 MB zip. The name gives no board revision or version number, so check the extracted files to see…
BIOS · 4.81 MB · 11 Aug 2019BIOS zip—4.81 MB - Dell OptiPlex 990 (Early2011)A-18 2MB & 8MB BIOS
Dell OptiPlex 990 BIOS set identified in the name as an early 2011 board with version A18, including both a 2MB and an 8MB image in a 5.09 MB ZIP.
BIOS · 5.09 MB · 28 Dec 2021BIOS zip—5.09 MB - DELL OPTIPLEX 990 E93839 KAO120 25Q16 2MB BIOS
BIOS dump for the Dell OptiPlex 990 desktop, with board identifiers E93839 and KAO120 and a 25Q16 flash chip of 2 MB capacity, packed as RAR.
BIOS · 174 KB · 13 Mar 2025BIOS rar—174 KB - Dell optilex 990
RAR archive for the Dell OptiPlex 990 desktop, 4.83 MB in size; the name does not specify whether it contains a BIOS dump, ME region or other service files.
Archive · 4.83 MB · 4 Apr 2021Archive rar—4.83 MB - dell mini 990 ssf ok tested
Small 372 KB RAR labelled for the Dell OptiPlex 990 SFF desktop and marked as tested and working.
Archive · 372 KB · 20 Mar 2020Archive rar—372 KB - AFS OptiPlex990 BIOS PWB REV A00 2MB & 8MB BIOS
BIOS set for the Dell OptiPlex 990 desktop, PWB revision A00, containing images for both 2 MB and 8 MB flash chips in a 4.84 MB RAR.
BIOS · 4.84 MB · 9 Feb 2024BIOS rar—4.84 MB - OptiPlex990 BIOS PWB REV A00 2MB & 8MB BIOS
Two BIOS images, 2MB and 8MB, for the Dell OptiPlex 990 system board with PWB revision A00, packed into a 5.09 MB ZIP.
BIOS · 5.09 MB · 28 Dec 2021BIOS zip—5.09 MB