I was given an Inspiron 620 tower that won't boot. There's no light of any kind associated with the power button on the front of the case, but the amber light on the motherboard (near the SATA ports) blinks. The power supply tests OK, so I'm wondering if the problem is likely to be anything fixable besides it being a bad board.
Thanks, that was my guess. Most of what I work with are the far older Win2K/XP-era units, so I wasn't familiar with the issues on newer systems like this.
Bad CMOS Battery if its an actual Dell Power supply.
Otherwise its insufficient power on the 3.3v/5v rails.
Blinking indicates Bad power supply.