Question Diagnosing possible MoBo failure

[Seek_Help]

Just got a new 3d printer so I pulled out my old rig that I was saving to do an arcade build to use for designs and printing. Opened it up and made sure everything was still plugged and fitted properly before turning it on. Good to go visually but once I powered it, there was no image received. No bios loading, just a blank screen which lead me to believe that its receiving a power signal but no imagery. So I tried another HDMI cable. And another... Still nothing. So I unplugged the video card and plugged it into the on board card. Nothing with all 3 cables.

So I thought maybe the monitor? Brought it downstairs and plugged it into my current rigs monitor... nothing with/without card in. So I unplugged hard drive, ram except one stick and everything else.... nothing. Can't exchange video cards as my current one is a freaking monster and doesn't fit.

Anyways, older rig, but didn't want to purchase a used mobo from ebay to get this thing running again until I got further input from the community that helped in some issues back in the early 2000's. Any can confirm a mobo issue or did I eat too many edibles?

Old Rig:
ASUS P8Z77-V LGA 1155
Intel Core I5 3570k
ASUS HD7850 2gig
Corsair DDR3 1600 16gig
Samsung EVO 256 SSD

 

[UsandThem]

Try replacing the CMOS battery.

Over the years, I've seen several threads where the battery was dead, and the old PC wouldn't boot.

 

[Iron Woode]

verify the PSU is not kaput.

 

[Seek_Help]

Try replacing the CMOS battery.

Over the years, I've seen several threads where the battery was dead, and the old PC wouldn't boot.

Man, didn't even think about that. It has been 8 years since I built it. Thanks will try it.

verify the PSU is not kaput.

How do you do that without getting another mobo to test?

 

[VirtualLarry]

Try replacing the CMOS battery.

Hey, that's my line.

How do you do that without getting another mobo to test?

Short the green and any black wire on the ATX 24-pin mobo connector, while the PSU is plugged into the wall, and switched on in the back. (You need to keep the connection going to continue testing.) See if the fan spins up, nominally, and preferably have a +12V chassis fan connected to a molex connector to provide a small load, see if it spins as well.

If the fan spins, the PSU may not be "dead-dead", but it may still fail to properly supply a fully-loaded PC when turned on. You'll have to check. But yeah, after being in storage that long, consider replacing the CMOS battery, or at least removing it and testing it with a multi-meter. Anything significantly lower than +3.00V, replace it.

Come to think about it, this thread is timely, because I've just pulled one of my PCs out of storage, that was in there for probably most of the pandemic since last year or so, and I need to go through the same thing. Got some video cards coming, going to turn it into a mining rig. However, I do keep a stock of CR2032 batteries on-hand, they sell them at the dollar store locally here, pack of 2 for $1. Not too bad.

 

[Leeea]

Be aware SSDs puke out after a few years if they are not supplied power.

 

[Seek_Help]

Hey, that's my line.

Short the green and any black wire on the ATX 24-pin mobo connector, while the PSU is plugged into the wall, and switched on in the back. (You need to keep the connection going to continue testing.) See if the fan spins up, nominally, and preferably have a +12V chassis fan connected to a molex connector to provide a small load, see if it spins as well.

If the fan spins, the PSU may not be "dead-dead", but it may still fail to properly supply a fully-loaded PC when turned on. You'll have to check. But yeah, after being in storage that long, consider replacing the CMOS battery, or at least removing it and testing it with a multi-meter. Anything significantly lower than +3.00V, replace it.

Come to think about it, this thread is timely, because I've just pulled one of my PCs out of storage, that was in there for probably most of the pandemic since last year or so, and I need to go through the same thing. Got some video cards coming, going to turn it into a mining rig. However, I do keep a stock of CR2032 batteries on-hand, they sell them at the dollar store locally here, pack of 2 for $1. Not too bad.

Replaced and still nothing. I was afraid that I would blow my computer up trying to short out the CPU. Thanks for the tips though.

I ended up just buying a new mobo/cpu/ram and trashing the motherboard. Spent a little more money upgrading to 1151 over buying a used 1155 mobo replacement. Sad really on the price of inflation on used parts.