New PC lacks a screen, local repair shop seems ineffective?
New PC lacks a screen, local repair shop seems ineffective?
Hello, I completed assembling my PC on Thursday but faced some issues. It powers on and all components—fans, case fans, and lights—appear to be functioning. However, there’s no display, and the VGA and boot motherboard LEDs are lit. Everything except the case, CPU cooler, and NVMe drive seems new (I didn’t reformat before building).
I’ve reset the CMOS, unseated the GPU, checked connections for display port and HDMI, plugged in the HDMI and display port to the motherboard, tested RAM in every slot, tried using no GPU at all while connected to the board, disassembled and rebuilt it, removed the NVMe drive with my OS, and even left nothing plugged in. I also tried turning on/connecting monitors after the system was up.
I had no clear solution, so I took it to a local PC repair shop. They spent a week with me and said they didn’t know what to do. Since I live in a small town in Kentucky, I didn’t expect much. I plan to pick it up again tomorrow. From here, I’m at a loss and feeling really disappointed after finally getting the parts but they still won’t work. Should I send the motherboard for repair?
Best approach: build the system on a breadboard (which I probably didn’t do before?).
🤔
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Description:
Remove the PC case, place the system inside any cardboard box.
Install CPU and CPU cooler.
Place one stick of RAM on the system.
Attach PSU power cables to the system (24-pin ATX and 4/8-pin EPS).
Connect the monitor to the system.
Link the keyboard and mouse to the system.
No additional parts are required, such as a GPU or OS drive. Remove all other hardware.
Power on the build by shorting the PWR and - pins on the system with a screwdriver and check if an image appears on the screen.
To turn off the build, flip the PSU switch at the back of the power supply.
If you see an image, the CPU-MoBo-RAM combination works.
If no image appears, one of the three (or all three) components is faulty: CPU, system board, RAM.
To determine which part is defective, you need a compatible system to test each component individually.
I don’t have a backup system ready for testing if it fails, and I’m uncertain about next steps.
But I’ll attempt breadboarding.
🙁
Only a minimal test during breadboarding can help check for RAM problems. Start by using stick #1, then switch to stick #2 if needed. A RAM stick failure is possible, but both together are unlikely. The second stick might work, but if no image appears again, replace the motherboard. Since a faulty motherboard can fail, avoid integrating the PC into the case right away and go back to breadboarding. This method is simpler for confirming CPU-Motherboard-RAM compatibility. If successful, you can proceed with full assembly. If not, disassemble easily compared to assembling inside the case. Breadboarding appears like this:
It should be, IF the problem lies with MoBo and not with the CPU or RAM.
Additionally, using a Ryzen 7000-series on an AMD 600-series chipset doesn't necessitate a BIOS update.
If you have a Ryzen 8000-series CPU, you might need to update MoBo BIOS. However, the available MoBo BIOS versions indicate that updating is not required even with a Ryzen 8000-series CPU.
You can view the MoBo BIOS versions here: https://www.asrock.com/MB/AMD/B650M Pro RS/index.asp#BIOS
Maybe I'll give it a shot—I'm just concerned that any new version I receive might require updates, or maybe the issue lies elsewhere.
😩
I'm really overwhelmed.
I mentioned that the repair site updated it saying it didn't make any changes in another comment.
It does not. V1.21 focuses on improving 7000X3D performance, yet the CPU remains functional during the BIOS launch of v1.18.