I have dell inspiron 545 desktop. It won't start up unless I remove the bios battery.
The issue first appeared 2 days ago. I left computer a few hours and when I got back the screen was black，lamp was blinking and Num Lock lamp on keyboard was on. Thought it went into sleep mode, but couldn't wake it up. Pressed the Num Lock, the lamp won't turn off. So I pushed power button to shut it down. Then a horrible thing happened it won't start up again! I removed all plugs and opened it up. A green light on the back(power) and a amber light on the motherboard was always on. No bad caps was found. when I pushed power button , after reconnected the power, I noticed fans did try to start but couldn't . So I pushed longer time, then the computer began to start up for like 6-7 seconds, then shuts down again( power button was still pushed even after it shut down.) After reset the BIOS and memory, by removing the CMOS battery and memory card, the computer was working again!
The next day the computer won't start up until I unplug everything and reset BIOS AGAIN! This time nothing happens no matter how long I push power button.
No problem was found when I restart or start up some second after shut down.
Did run Dell Diagnostic and PSA，and I got :
Dell diagnostic: fixed transformation and lighting test, cannot run
PSA: Error code: 0f00：133c
How can I fix this? Can anyone help?