- Mar 3, 2017
- 4
- 0
- 510
Just built a new pc, and my motherboard is not detecting the graphics card at all. The motherboard has some troubleshooting lights and the VGA light is on, which means the video card isn't detected, from the manual. What happens is the computer will start, fans start turning and I hear a few clicks, keyboard will light up, but no video output at all. After a few seconds, the VGA light turns on and the fans on the graphics card stop turning.
Things I've tried:
- Different GPU. Grabbed the one from this computer, so I know the card itself works, but no dice.
- Other PCI-e slot. Moved it from the x16 to the other one which is x4.
- Different power cable. My power supply has two of the connectors that go to the GPU, neither worked.
- Unplugged the SATA connections, thinking it might've been trying to boot from those instead of going to the BIOS.
- Tried using one stick of RAM, and I tried each one.
- Re-checked for connections on the CPU, all look good.
- Tried with both monitors, plus one of the monitors from this PC. Also tried different HDMI cables, from both ports on the back, and also a DVI cable. Nothing.
I'm out of ideas of what to check. I'm thinking maybe it's a compatibility issue, and I need to update some drivers before it will work, but how would I go about doing that if I can't start it up? The MOBO says it's compatible with DDR4 memory up to 2400, as long as I have a 7th gen processor, which I do. I've checked through all these steps and they all look good.
http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
And here's my build:
https://pcpartpicker.com/list/V28VZ8
Any pointers?
Edit:
Next day and I've breadboarded it. Only things plugged into the MOBO are CPU and fan, one stick of RAM, and the PSU supplying power to the 24-pin on MOBO and to the 8-pin CPU power. I've also tried it with the GPU installed and with power, but same thing happens. It will turn on, same as before, and the VGA light will turn on as the GPU stops spinning its fans, but then the BOOT light comes on. This is also after I reset the bios by jumping the pins. I'm guessing maybe my CPU isn't supported by the MOBO's current bios, and would I have to use a different CPU for the time being to get it started and update that? I have a 4th gen intel i3 in this computer that I could try swapping over, but then I'd have to go out and get some thermal paste and alcohol wipes... seems like a hassle.
Things I've tried:
- Different GPU. Grabbed the one from this computer, so I know the card itself works, but no dice.
- Other PCI-e slot. Moved it from the x16 to the other one which is x4.
- Different power cable. My power supply has two of the connectors that go to the GPU, neither worked.
- Unplugged the SATA connections, thinking it might've been trying to boot from those instead of going to the BIOS.
- Tried using one stick of RAM, and I tried each one.
- Re-checked for connections on the CPU, all look good.
- Tried with both monitors, plus one of the monitors from this PC. Also tried different HDMI cables, from both ports on the back, and also a DVI cable. Nothing.
I'm out of ideas of what to check. I'm thinking maybe it's a compatibility issue, and I need to update some drivers before it will work, but how would I go about doing that if I can't start it up? The MOBO says it's compatible with DDR4 memory up to 2400, as long as I have a 7th gen processor, which I do. I've checked through all these steps and they all look good.
http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
And here's my build:
https://pcpartpicker.com/list/V28VZ8
Any pointers?
Edit:
Next day and I've breadboarded it. Only things plugged into the MOBO are CPU and fan, one stick of RAM, and the PSU supplying power to the 24-pin on MOBO and to the 8-pin CPU power. I've also tried it with the GPU installed and with power, but same thing happens. It will turn on, same as before, and the VGA light will turn on as the GPU stops spinning its fans, but then the BOOT light comes on. This is also after I reset the bios by jumping the pins. I'm guessing maybe my CPU isn't supported by the MOBO's current bios, and would I have to use a different CPU for the time being to get it started and update that? I have a 4th gen intel i3 in this computer that I could try swapping over, but then I'd have to go out and get some thermal paste and alcohol wipes... seems like a hassle.
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