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Solved PC turning on but the display staying black.

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Tek

Tek

PCHF Member
Nov 26, 2022
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20
#1
I bought a new graphics card(RTX3060), to replace my GTX1050-Ti. When i replaced the card and turned on the PC, pc spins to life but the display stays black.

Switching back to the old card, the same problem continues.
I have no way to turn on the graphic display for the PC or enter bios.
 
#2
This sounds like it could be a monitor connectivity issue. I am assuming the PC spins up as normal with the regular POST sounds, just no display this time.

To troubleshoot, thoroughly check your monitor is powered and connected. Experiment with power outlets, they may possibly be damaged. Do you have a spare monitor; if not can you purchase a cheap one and try it. Also try an adapter, such as an SVGA to HDMI, depending on what ports you have available.

If not you are looking at an entirely new pcb which will be an expensive headache. At that point you may as well buy a new computer. But if the motherboard was damaged, you'd likely hear a different POST sound or nothing at all upon boot.
 
#3
tento10 said:
This sounds like it could be a monitor connectivity issue. I am assuming the PC spins up as normal with the regular POST sounds, just no display this time.

To troubleshoot, thoroughly check your monitor is powered and connected. Experiment with power outlets, they may possibly be damaged. Do you have a spare monitor; if not can you purchase a cheap one and try it. Also try an adapter, such as an SVGA to HDMI, depending on what ports you have available.

If not you are looking at an entirely new pcb which will be an expensive headache. At that point you may as well buy a new computer. But if the motherboard was damaged, you'd likely hear a different POST sound or nothing at all upon boot.
Click to expand...
Hey, thank you for the comment. Im sure the monitor and its cable are working fine becuase I tried connecting it to my laptop and it worked fine.

When the PC turns on.. its like it half turned on? I cant shut it down with the buttons, the only way is forcefully with the switch behind it.
 
#4
First check carefully in the tower to ensure you have not knocked any components during the card installation and removal. Is the RAM fixed in place, is your HD connected and powered. Remove and reconnect these firmly even if you believe they look fine.

If that doesn't work, try removing the GPU and using the onboard video card. Try another graphics card/HD if you have one.

What buttons do you mean? Do you mean the power button on the keyboard or the tower itself. Does it boot with the normal POST sounds or what you'd normally expect?

The worst outcome is that the motherboard has become fried by an overload or due to static. But it may still be the receiving video connector port to your old GPU and I would recommend using an adapter or the onboard to be certain.
 
#5
tento10 said:
First check carefully in the tower to ensure you have not knocked any components during the card installation and removal. Is the RAM fixed in place, is your HD connected and powered. Remove and reconnect these firmly even if you believe they look fine.

If that doesn't work, try removing the GPU and using the onboard video card. Try another graphics card/HD if you have one.

What buttons do you mean? Do you mean the power button on the keyboard or the tower itself. Does it boot with the normal POST sounds or what you'd normally expect?

The worst outcome is that the motherboard has become fried by an overload or due to static. But it may still be the receiving video connector port to your old GPU and I would recommend using an adapter or the onboard to be certain.
Click to expand...
I already tried reattaching the RAM. Im using MVE2 SSD to for my OS, which i havent touched.
I tried using 2 other GPUs and none of them light up the display.
Im using i5-10400f which doesnt have a internal video chip, so i cant enter bios or anything.

When it boots up, it sounds pretty normal no unusual beeping or something like that, and then just stays like that, fans slowly rotating (cpu fan and case fan). I feel like bios isnt loading up in to RAM?
 
#7
The only reason BIOS would not load was if the battery in the motherboard was removed or drained. You may attempt replacing the battery.

Are you sure *all* your cables are connected, including power from your psu to your motherboard. This would be item E in the below:

It is common to knock internal connectors during upgrades and since the monitor is in good condition I would estimate this to be a loose connection.
 
#8
veeg said:
Post your complete psu spec's.
Click to expand...
Here ill post my full pc components:
CPU: i5-10400f
Motherboard: Asus prime B460M-K (90MB1400-M0EAY0)
RAM: 2x16GB Corsair 2666MHz (CMK32GX4M2A666C16)
SSD (OS): Samsung SSD 500GB EVO PLUS M.2
HDD: WD 2TB
PSU: Corsair 650W CV650 80 PLUS Bronze (EU)
Cooler: Be quiet! Pure rock slim 2 (BK030)
Monitor: Samsung C24F390
GPU: Asus Dual rtx3060 (I tried with Gigabyte gtx1050-ti and gainward gt730
 
#9
tento10 said:
The only reason BIOS would not load was if the battery in the motherboard was removed or drained. You may attempt replacing the battery.

Are you sure *all* your cables are connected, including power from your psu to your motherboard. This would be item E in the below:

It is common to knock internal connectors during upgrades and since the monitor is in good condition I would estimate this to be a loose connection.
Click to expand...
I double checked all the connections the the motherboard and tried turning on the PC. Its still the same. If you would like me to, i could send a video or photos.
 
#10
Tek said:
I double checked all the connections the the motherboard and tried turning on the PC.
Click to expand...
Remove the RAM and boot. Are there any strange beeps? If not you need a replacement machine. It would confirm the motherboard is irreparably damaged.

If so the board is functional but there is a display problem, try a video adapter with a fresh monitor.
 
#11
tento10 said:
Remove the RAM and boot. Are there any strange beeps? If not you need a replacement machine. It would confirm the motherboard is irreparably damaged.

If so the board is functional but there is a display problem, try a video adapter with a fresh monitor.
Click to expand...
I turned on the pc without the RAM, and it turned on the same way it did when it had RAM in it. :(
 
#12
Tek said:
I turned on the pc without the RAM, and it turned on the same way it did when it had RAM in it. :(
Click to expand...
This is not normal. For most models, a healthy pcb would initiate a loud continuous beep if you were to boot without memory. It may sound like an annoying: EEEEEEEEEEEEE! in the tone of a fire alarm and not stop until you turned off the power by pulling out the power cable.

Is the CPU fan spinning? If not the PSU needs replacing because it's not working right.

If the fan is spinning it means the rest of the board is not powered. This means you should check things again.

If you are certain all your cables are wired correctly, replace the board.

I think you have a) knocked a connection or b) shorted the entire board somehow during the installation and removal of the new GPU, your quickest and most economical solution is a motherboard replacement.
 
#13
FYI
Motherboards do not come with speakers attached you will need to purchase one in order to hear the beeps they are asking about.


You did take the proper discharge for the system and you prior to installing the card
You did uninstall the drivers prior to installing the drivers for the new card?

Does the system display anything if you boot from the windows install disk to see if anything shows?
Just seeing if anything appears no install needed.
 
#14
Hey, thank you both for trying to help out. I did more trying out. And in the end i managed to make it work.

The problem was (probably) that when i first plugged the new GPU, i didnt properly connect the power cable to the GPU. The result was frying the SATA 1 port.

For me the fix was connecting my HDD from SATA 1 and 2 to SATA 2 and 3.
 
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