Hi!
I renovated my PC with a 7900X on Friday last week and it worked wonders for 6 days without any complaint. However, after 6 days of use the monitor went black during a gameplay, with all the fans still running. Since then I restarted the PC around 100 times being able sometimes to POST just to see a Windows BSOD and then not POSTing at all. At the beginning I could get to see the BIOS screen after 10-20 reboots, but now I cannot even reach that point. Now at boot all fans start spinning but nothing else happens: no POST, no beeps, no lights in the motherboard... nothing. Any idea on how to debug this?
System specs:
- Ryzen 7900X
- Gigabyte DHS3 650M motherboard
- GSKill Ripjaws S5 (F5-6000J3040F16GX2-RS5N)
- ASUS ROG-STRIX-LC-RX6900XT-O16G graphics card
- Seasonic Prime TX-850 Platinum power supply
I was already using both the power supply and the graphics card in my previous Intel system without any problem. For debugging this problem I've tried dozens of things:
- I verified that the monitor and the cable work with a different computer
- I removed the graphics card and used the integrated one
- Flashed CMOS and restored DRAM to 4800MTs
- Removed motherboard battery
- Tried with another power supply that I used before the graphics card forced me to upgrade it
- Removed every connection from the motherboard except for MB and CPU power supply, fans and case power-on button
- Removed all drives
