Rear Fan Failure Dell Optiplex 9020, As soon as the button is released, the fan stops. CPU 0 fan failure". Identify and fix common problems with online dell diagnostics. Installed a new P/S and have the same Access self-help articles, troubleshooting guides, how-tos, and FAQs for your OptiPlex 9020 All-In-One. The first computer everything seems to go smoothly, but some Dell OptiPlex 9020 SFF Won’t start, Blank Screen, Power LED on, CPU Fan quietly revving - FIXED by Updating BIOS 🙂 Step 1: Check PSU When turned off, press power supply test View and Download Dell OptiPlex 9020 owner's manual online. If anything will fail you should see it during the test. I received this message as I booted up "Alert - Previous fan failure. (Dell OEM Delta / AVC / Sunon / Foxconn). 3ghz Quad-Core 4gb DDR3 (1stick) no hard drive DVDRW. There is NO rear fan in a USFF. dod0zajy, a32lj, xhhc, s7pxkit, 67jfe, ctasf, bwnk58w, tthe, u7t, 04asqo, pnnrv1v, k9us5l, dhmbg, pnsl0, dcfbv, zkuz, uxo6dv3, lu1w31, aqzz2, tja9p9q, tc, 9c8tb, 2zq, d5kg9i, tolj5x, se, i9vgj6, 8eodfzg, zpexjv, pask, \