PC upgrade issue - system fails to boot and VGA diagnostic light appears
PC upgrade issue - system fails to boot and VGA diagnostic light appears
Hey.
Here’s what I have so far:
I checked that all connections are secure and everything seems in place, including rewiring two cables through the back.
I tested with just one RAM stick and switched to the other slot.
I also tried enabling resizeable bar support.
I’m still planning an upgrade later, though.
I attempted a CMOS reset by leaving the battery on for a while and then using a jumper wire (though I couldn’t find the tool).
After installing the new GPU, connecting the VGA cable (which has an 8-pin connector), everything lights up and starts up, including the fans and LEDs. The VGA LED turns red.
This happens on one of my two monitors, which are connected via DP to the GPU directly. The VGA LED appears in this case.
Once I take the GPU out, the PC boots with the integrated graphics and everything is recognized.
I’ve tried a few things:
1. Double-checking all connections.
2. Using only one RAM module.
3. Switching to the other PCIe slot (x8 on one side, x16 on the other).
4. Activating resizeable bar support.
I’m aware this PC isn’t the latest model and may not be ideal for long-term use, but I still hope it gets a better graphics card soon. I’d like AV1 support as well, since this machine will likely run for years—though eventually it might become an office setup.
Welcome to the forums, newcomer!
550 Watt 80 Platinum be quiet PSU is this?
https://www.bequiet.com/en/powersupply/1357
Is this your power supply unit? If yes, how recent is it in your system?
Your BIOS does support resizable bar, though it isn't the latest release. The newest version contains only minor updates.
If I were you, I'd update the BIOS to the latest, reset CMOS, use DDU while on iGPU to clear all GPU drivers (Intel, AMD, Nvidia) in Safe Mode, then shut down, reinstall the Intel GPU, and check if display works without it.
MSI Z370 Gaming Pro Carbon
https://www.msi.com/Motherboard/Z370-GAM...ON/support
Talking about this, what BIOS version do you have installed on your motherboard?
7B45vAC3(Beta version) is the BIOS I have. The PSU is a Dark Power Pro 11, purchased in September 2018 — it operated very smoothly all the time. I can update the BIOS to the latest version without any issues. I’ve tried before. There’s a DDU option as a fallback, though its effectiveness is uncertain since it only shows a strange underscore. I’m unable to enter the BIOS at all. Could it be that the card was damaged when it arrived?
So I flashed my BIOS and reinstalled the new GPU in the x16 slot. Now I get a signal from it. I had to reset my PIN and re-enter my recovery key again because of the update, but everything is now working. Now I just need to install some drivers so everything functions properly.
Everything appears to be functioning properly now—it seems the BIOS was the issue. The card is operating well so far, running quieter even when under stress! I'm still working through the setup, but I can move forward. Appreciate the advice about updating the BIOS. Looking ahead, I'll definitely prioritize BIOS updates, even if the changelogs mention only small changes.