Possible dead motherboard

[Helpful Tech Witch]

I have a msi b250m motherboard, a i5-7400 3ghz, a Radeon rx480 4gb, a 600 watt thermaltake 80+smart psu, and a kit of 2x8gb XPG Adata 2800 mghz ram. I was getting graphics related bsods, as well as massive stuttering in games like cs:go, and far cry 3, and constant crashes in Fortnite. I ended up taking out the  card and cleaning it with some cotton swabs and some  70% isoproble alcohol. I put the card back in, and it turns on, but i don't have ant video. I opened up the case after turning it off, and switching off the power supply. I then realized that i had forgotten to plug the graphics card in (silly me) and plugged it in. Since i have had no luck in a post, or even an EZ debug light. I have checked the card, PSU, and storage, and checked the power button. All good. What should i do? Is the motherboard dead, am i an idiot and forgetting something, is there any way to save it? It looks like i may be able to sell the CPU and dead board, plus a bit out of pocket to get a new mobo/CPU, and if so are the any comparable mobo/cpu combos, for like 150-250?

[DarkEnergy]

You might be missing something. Forgetting to plug in a graphics card shouldn't damage the motherboard. It sounds like you had a graphics card problem from the start. Do you get post by plugging into just the motherboard? (Not the graphics card).

[Helpful Tech Witch]

I've checked the graphics with a different motherboard. It still works. The motherboard wont respond to a power button press at all.

[DarkEnergy]

5 minutes ago, TheTechWizardThatNeedsHelp said:

I've checked the graphics with a different motherboard. It still works. The motherboard wont respond to a power button press at all.

Have you disconnected anything other than the graphics card when you were trying to troubleshoot? Make sure you correctly connected the case power switch pins and have connected the motherboard and cpu power cables from PSU. Also make sure the PSU is switched ON in the back. Does the motherboard have any led when plugged in?

 

Have you tried powering it on without the graphics card installed?

[Helpful Tech Witch]

Yes, i have troubleshooted all parts i can (haven't tried a new cup, or the cpu in a new board, or new ram), but i have not tried to power on without anything but no drives. I've checked power pins, and tried just shorting them. No dice.  The PSU is on, and works in another pc. Ill try without my graphics card. No LEDs at all

 

[Helpful Tech Witch]

I also pulled the board out of the case to see if there were any LEDs under the board. No dice, again

 

 

[Helpful Tech Witch]

Nothing with no card