My computer turns on but displays nothing

Sep 24, 2019
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After searching, I thought to change the RAM in different ( PCI) slots and my PC started normally and display as well. So, i restarted my pc after 10 minutes and all things did well. But when i shut down and i press the power button to turn on my pc did not start. So, i made the same thing and nothing changed.

In other words, when i change the RAM in different PCI slots my pc works and my monitor is working. Without changing it in another slot, when i restart it everything goes fine, but when i shut down and press the power button to turn on, my monitor does not work and the front fan too.... why??
 

Ralston18

Titan
Moderator
No beeps or motherboard LED's when the pc fails to start?

Overall, I think the PSU may be the prime suspect but that assessment is a bit premature.

Update your post to include full system hardware specs and OS.

Include PSU: make, model, wattage, age, condition.

And provide some additional detail about how you are changing and rearranging the RAM to make the pc start working again?
 
Sep 24, 2019
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No, there is no beep or motherboard LED's ! I built my PC in 2014

CPU: Intel Pentium G3258 3.2 Ghz
PSU: Corsair VS Series 450 WATT
MOTHERBOARD : Gigabyte GA-Z97M-D3H
RAM: Corsair CMZ8GX3M2A1600C9 Vengeance 8GB ( 2x4GB) 1600 MHz
SSHD: Seagate ST1000DX001 1TB 3.5 DESKTOP
SSD: Samsung MZ-7TE120BW 840 EVO
I do not have Graphic Card.

PC is running Windows 10 Pro Version 1903

When I change the ram I mean that i shut down PC and i unplug supply cable, all usb cables, LAN cable, and VGA cable. There is nothing connected to PC. Later, I press down the tabs at either end of the slots and i change the ram. For example by grey slot i install it to the one black slot. So when my computer turns on but Displays nothing i remove it from black slot to other grey slot. My Motherboard has 4 slots. ( black, grey, black, grey). In the end, I plug all cables and my PC and my monitor works fine.

Another worth mentioning is that sometimes my PC does not get electric power and because of this, I press supply cables like checking that are connected to motherboard and after that gets electric power. Probably my PSU has an issue? But how then works?

Thanks!!!
 

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