The method for decades has been canned air. But since it's done, how it's not a blown part.
Try the usual. Reset the BIOS (check your Dell Docs) and see if it starts up. Next is remove power and gently push all cards and connections home. Reset and test again.
Hello, I have a big problem since my dell T7500 doesn’t want to boot Win 7, here’s how it happened. Basically, I just clean the interior of my PC softly with a vacuum cleaner and I think I didnt unplug anything But when I tried to power on my pc. I boots normally and it says MPT boot successfully installed! It looks like it stucks because it’s been 30 minutes and it still didn’t start up with windows 7. Please help, thank you