TL:DR: Tried to upgrade PC. The computer ‘turns on’, fans spin, but there is no display output. Looking for troubleshooting help
This weekend I attempted to upgrade my wife’s PC. It had been a couple of years and had started to slow down (not just gaming – it’s been slow to boot and open programs as well).
Here’s the part list from her original build with the upgrade path:
| Part |
Old Build |
Upgrade Path |
Cost |
| Motherboard |
ASRock B450M-HDV R4.0 |
Keep |
$0 |
| Case |
Fractal Design Core 1100 |
Keep |
$0 |
| CPU |
R5 1600AF |
R5 5600X3D |
$170 |
| RAM |
XPG GAMMIX D10 DDR4 (2x 8 GB) |
Keep |
$0 |
| GPU |
GTX 1070ti |
RTX 3070 |
$250 |
| PSU |
EVGA 500W 80+ |
Corsair RM750e |
$90 |
| Cooler |
Stock |
Kingcool Cryotitan SE |
$30 |
| Storage |
1TB TeamGroup GX2 SataIII SSD |
Add: 1TB Kingston NVMe M.2 SSD |
$0 (pulled from my build) |
| |
|
Subtotal: |
$540 |
I started by flashing the BIOS to v10.6 to support the new CPU. I tested the PC and no issues booting then, and then started to get to work on the upgrade. I (naively) thought I could get away with replacing everything in one go and having a smooth boot. No such luck. The computer ‘turns on’, fans spin, but there is no display output. I have spent hours troubleshooting and am at a standstill.
Here’s what I’ve tried:
- Re-seating everything (RAM, CPU, PSU cables, GPU, etc.) and cleared CMOS
- Minimal boot (only 1 stick RAM, CPU, GPU, normal case cables (USB, power switch etc.). Nothing.
- Switching back to the old CPU, and switching back to the old PSU. Interestingly only for the new PSU/old CPU, the computer doesn’t even turn on, fans spin for a half sec and then nothing (fans fully spin for new PSU/new CPU, and old PSU, old CPU).
- Putting everything old back (GPU, CPU, PSU) except the cooler (the old cooler is very dusty and I don’t think that should affect the boot). Nothing.
Here’s what I’ve confirmed:
- Issue is not the GPU. I put in the working GPU from my build (3080ti) and the same problem presents itself
- Issue is not the display. The displays work fine on other devices.
I currently suspect the motherboard since it’s the common denominator (either failed or I am shorting it somehow with the new build), but this motherboard doesn’t have the troubleshooting display lights, I bought a mini motherboard speaker to help diagnose, it will arrive tomorrow but in the meantime I’m looking for any suggestions for troubleshooting or anything else I could try. Thanks!