East London - Help needed with troubleshooting PC no display

[BattleVans]

Hi All, I cleaned up my PC a bit this morning with a air duster and microfibre. Didn't take anything apart, just took the panels off to clean inside a bit.
First time using air duster so as far as I am aware didn't get any liquid on anything, which I have heard some air dusters can do. PC was completely unplugged when I was cleaning. When I put it back together and turned it on, I am getting no display. Front fans take a while to spin and back fan doesn't light up as it usually does. Other than that everything appears to be working but I get no display. Any suggestions on where to start troubleshooting or is anyone in EL available to have a quick look for me sometime?
Thank you.

 

[yaeger_]

Something similar happened to me. I removed the RAM modules, reinstalled them. You can also disconnect and reconnect the cables and if you have a GPU, remove and reinstall.

 

[BattleVans]

Much appreciated, I did just that a few minutes ago and all working again!