Computer powers up, but no POST

spade2561

Honorable
Jan 16, 2013
10
0
10,510
So I have a custom built machine that my family uses as a media and backup server. It's nothing to special. Windows 7, AMD quad core, 16 gigs of ddr3, a Zotac Nvidia card, and like 10 TB of hard drive space. Anyway, so anyway. I was watching a movie on it earlier this week. Got done, turned it off. Nothing wrong. Went to turn it back on and all the lights and fans came on. But the machine never posted and nothing every came up on the screen. First thought was the motherboard died, I only spend like 500 bucks building it and have just kept slapping in more hard drives over the years. So I ordered a new motherboard that could use the CPU and ram and all the stuff I already had. Got a small SSD and loaded windows 10 on it while I waited for the new motherboard to show up in my mailbox. New motherboard gets here swapped it out put just the new ssd in to make sure it would boot and everything was good. Same result. Lights and fans power up. but the machine doesn't post. So I've pulled out the video card and pulled a monitor into the onboard video outputs and still nothing. I know the video card works because I've tested it in another computer. I know the SSD is good, and I seriously doubt the the new motherboard which is three years newer and from a different manufacturer would have the exact same problem as the old one.

So does anyone out there have any idea what my problem might be?
 
Listen to whatever beep code / look the led codes you're getting from the mobo, that should point you towards the issue, refer to the mobo's manual to find out what exactly means the code you're getting.

Now if there's no code at all then its likely to be a shorting issue, you could try breadboarding the mobo to rule that out.
 

spade2561

Honorable
Jan 16, 2013
10
0
10,510
That's just it. There is no beep code. I've tried swapping out the motherboard. I've tried a different PSU. I've tried each of the four DIMMs individually. No HDDs, different monitors. tried the board just sitting on the bench. Nothing. The problem persists no matter what I try.