Guys plz help, urgent! PC lights up, (keyboard, card, mouse) but no display

[CookieMasher]

Yesterday everything was fine, I remember I shut it off as normal; I did nothing unusual I can remember.
This morning I turn it on, the lights come on like normal, but the logo for the motherboard doesn’t show like usual, then the screen goes into sleep mode and so does the keyboard (it has a lighting thing it does).
I have tried replacing all the parts, clearing dust checking port connections to no help.
I just need to know if there is anything else I can do, or if I need to look at getting a new part, or maybe a tech guy.
Thanks!

[CookieMasher]

I’ll also add I build this myself.
The specs:
OS: Windows 10 64 bit
Board: MSI H81M-E34 Intel Micro ATX Motherboard (LAN, VGA, HDMI, DVI)
Chip: Intel Core i5-4690K 3.50GHz Quad Core Processor
RAM: 2X Crucial 8 GB Sport Ballistix 240 Pin DIMM DDR3 PC3-12800 Memory Module
HDD: Seagate ST1000DM003 Barracuda 1TB 3.5 inch Hard Drive
SSD: Samsung 2.5-Inch 250 GB 850 EVO Solid State Drive
Graphics card: MSI AMD R7 370 Gaming Graphics Card (2 GB, PCI-E, GDDR5, DVI-I, HDMI)
Power: Corsair Builder Series CXM 430W Modular 80 PLUS Bronze Certified ATX/EPS PSU

[veeg]

Hello

The recommended psu requirement is a 500 watt psu. This would be your issue more than likely.

[CookieMasher]

Hello

The recommended psu requirement is a 500 watt psu. This would be your issue more than likely.

The thing is I’ve had it running fine like this for 3 years now, and that’s never been an issue; also all the fans, lights are still functioning while it doesn’t boot

[veeg]

Ok please down load and run this software.. Download Speccy | Find your computer specs, free!

Please post that log using this method.. CCleaner Support Community

[Rustys]

I have tried replacing all the parts, clearing dust checking port connections to no help.

Did you apply thermal pasted to the CPU before placing the heat sink back on. Did you reconnect the fan for the heat sink back to the proper connection on the motherboard?

Check to make sure that you are plugging into the Video Card and not the motherboard.

Remove the Video Card and plug the display into the mother board and see if anything appears.

[CookieMasher]

Oh, bois, I got it working. Apparently the cable that connects my external power button to the motherboard was wonky, so it was only booting certain parts of the PC (I think) anyway it’s working for now, lets hope it stays that way, thanks for the support!

[veeg]

Ah! yes,you may want to consider replacing that power button eventually. Glad you got it working. Shall we mark your thread as solved then?

[CookieMasher]

Ah! yes,you may want to consider replacing that power button eventually. Glad you got it working. Shall we mark your thread as solved then?

Yeah, thanks a lot. While it was a happy accident I got it working, you can probably add this to the list of things to check I hope!