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Both links say &quot;internal server error&quot;
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Interesting. If you click on the link - it will fail. But if you check with Google search the follow &quot;Dell Optiplex 390 a02 bios download&quot; then it lets the site open. See attached screen shot. <br />
If you do not get it loaded - I can download and share the flash file for you.<br />
<a href="https://filedb.experts-exchange.com/incoming/2016/01_w04/1072501/O390A02.exe.jpg" target="_blank" class="file-inline" title="screenshot (157 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>O390A02.exe.jpg</a>
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O390A02.exe.jpg

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You are both correct.....thanks for your help. Can I accept both solutions?
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I have a dell OptiPlex 390 I am re-purposing at work. Surprisingly, I noticed the bios was A0. The dell site is up to A11. However, I cannot upgrade to A11 until I upgrade to A02. I go back to the dell site to get A02 and get &quot;Internal server error&quot;. I called and they refuse to help with computer out of warranty. Anyone else know what I can get this old Bios so I can upgrade to the newest bios?
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I have a dell OptiPlex 390 I am re-purposing at work. Surprisingly, I noticed the bios was A0. The dell site is up to A11. However, I cannot upgrade to A11 until I upgrade to A02. I go back to the dell site to get A02 and get "Internal server error". I called and they refuse to help with computer out of warranty. Anyone else know what I can get this old Bios so I can upgrade to the newest bios?

Dell Optiplex 390 bios

A desktop computer is a personal computer designed for use at a single location due to its size and power requirements, usually by one person. The most common configuration has a case that houses the power supply, motherboard, disk storage (usually one or more hard disk drives and optical disc drives); a keyboard and mouse for input; and computer monitor and printer for output. The case may be oriented horizontally and placed atop a desk or vertically and placed underneath or beside a desk.

Desktops

Since 1984, Dell has been delivering technology to fit your life.
Dell is in Enterprise, Home Office and Consumer sectors of the market, supplying a broad range of customizable desktops, laptops, notebooks, servers, storage, and network devices.