F5F Stay Refreshed Hardware Desktop I think my new computer isn't turning on right now. Could it be a bad video card?

I think my new computer isn't turning on right now. Could it be a bad video card?

I think my new computer isn't turning on right now. Could it be a bad video card?

I
Inezze009
Senior Member
716
06-04-2026, 11:23 AM
#1
Hey everyone. I recently swapped the Motherboard and memory sticks in my main computer. Everything looked good then, but now her PC won't turn on at all. The lights are flashing and the CPU is making noise like it's trying to work hard, but nothing shows up on the screen or even sounds out loud. There are no beeps from the speaker either. The only signs of trouble are those little lights inside the Mobo. They say the CPU and RAM are fine, but the graphics card light is red and that's stopping everything from starting properly. It looks like a simple fix: buy a new GPU. I tried getting a cheap one and the problem stays exactly the same. The processor I bought for her machine is actually the exact same model as before (an i5-12400F). Unfortunately, it doesn't have any built-in graphics so I can't use the Mobo's HDMI port either. I've checked all the official steps over and over but nothing seems to help right now. Any advice would be super helpful. CPU: i5-12400F Mobo: B660 DS3H DDR4 RAM: 2x8GB Corsair Pro GPU: Revenger GTX 550Ti (also tested with Zotac GT520)
I
Inezze009
06-04-2026, 11:23 AM #1

Hey everyone. I recently swapped the Motherboard and memory sticks in my main computer. Everything looked good then, but now her PC won't turn on at all. The lights are flashing and the CPU is making noise like it's trying to work hard, but nothing shows up on the screen or even sounds out loud. There are no beeps from the speaker either. The only signs of trouble are those little lights inside the Mobo. They say the CPU and RAM are fine, but the graphics card light is red and that's stopping everything from starting properly. It looks like a simple fix: buy a new GPU. I tried getting a cheap one and the problem stays exactly the same. The processor I bought for her machine is actually the exact same model as before (an i5-12400F). Unfortunately, it doesn't have any built-in graphics so I can't use the Mobo's HDMI port either. I've checked all the official steps over and over but nothing seems to help right now. Any advice would be super helpful. CPU: i5-12400F Mobo: B660 DS3H DDR4 RAM: 2x8GB Corsair Pro GPU: Revenger GTX 550Ti (also tested with Zotac GT520)

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LuddeT3
Junior Member
10
06-07-2026, 10:59 PM
#2
Here are some things needed when asking a question about fixing problems:
- CPU: Intel I5-12400F
- Mobo (Motherboard): B660 DS3H
- RAM: 2 sticks of 8GB Corsair Pro
- GPU: Revenger GTX 550Ti (I tried it with a Zotac GT520 too)

When writing to get help, please list all your computer's parts clearly. For example:

CPU: Intel I5-12400F
Cooler: [your cooler]
Motherboard: B660 DS3H
RAM: 2x8GB Corsair Pro
GPU: Revenger GTX 550Ti (also tried with Zotac GT520)

Please tell me about your setup before the switch. You mentioned changing the motherboard and CPU, so what were you using back then?
L
LuddeT3
06-07-2026, 10:59 PM #2

Here are some things needed when asking a question about fixing problems:
- CPU: Intel I5-12400F
- Mobo (Motherboard): B660 DS3H
- RAM: 2 sticks of 8GB Corsair Pro
- GPU: Revenger GTX 550Ti (I tried it with a Zotac GT520 too)

When writing to get help, please list all your computer's parts clearly. For example:

CPU: Intel I5-12400F
Cooler: [your cooler]
Motherboard: B660 DS3H
RAM: 2x8GB Corsair Pro
GPU: Revenger GTX 550Ti (also tried with Zotac GT520)

Please tell me about your setup before the switch. You mentioned changing the motherboard and CPU, so what were you using back then?