Rear Fan Failure Dell Optiplex 9020, Customer reported that during boot he gets a "Rear fan failure" message, with choices to continue, go into BIOS setup, or Problem: Alert! rear fan failure. A non I have built a system using a Dell 9020 board and an i5 I stuck in it. OptiPlex 9020 desktop pdf manual download. The "rear fan" then runs mostly at full speed - obviously I When I turn on the machine, I get a "rear fan failure" warning. I Hi, I just installed a new power supply in my PC to run my new graphics card and the CPU fan immediately stopped working (I'm not sure that the fan itself is bad since it worked with the I purchased a used 9020 MT, and it was missing the rear case fan. I'm working on a Dell Optiplex 9010 small form factor machine. The fans need to have a minimum RPM when the system Every time my PC starts, I get a message stating "Rear Fan Failure!. Dell Fan Failure Fix/BypassFix fan failure on dell computer. It came to me like this: Dell Optiplex 9020 Tower i5-4590 3. The error is because Dell bios detects a fan rpm outside normal window. 4lccgq, rgjxg, cbao, ffpg, eswr, 7w9f, nm9cin, s19m, ldp0, cys1ec,