Hello everybody 🙂 I'm new here and I hope you can help me
4 years ago I built my PC, it’s not overclocked and I use it mainly for 3D, graphic and video works and a bit for gaming. Here the specs:
PSU: Seasonic PRIME Platinum 750W MB: ASUS ROG STRIX Z390-F GAMING (BIOS v1802) CPU: Intel Core i7-9700K 3,6 GHz - cooling Corsair Hydro H115i PRO RAM: Crucial Ballistix Sport LT DDR4 2666 MHz 1,2 Volt - 16GB x4 GPU: ZOTAC GeForce GTX 1070 8GB AMP! Extreme Edition Drives: Samsung 980 PRO PCIe NVMe M.2 500GB - for boot drive, Samsung 860 EVO SSD SATA III 250 GB, Samsung 850 EVO SSD SATA III 250 GB, Seagate Barracuda Pro SATA III 6TB OS: Windows 10 pro x64
Some days ago it stopped working: when I turn it on, it restarts 3 times and then doesn’t boot the OS. After the 3 restarts it shows this screen BIOS now has default settings, so it doesn't see the M2 system boot disk. When I enable CSM it starts Windows, but then if I turn it off it loses this setting again.
I didn’t change anything before this issue, didn't even update Windows or drivers last time I used it.
I first thought it could be a RAM issue because it is restarting when the RAM LED on MoBo is on, but I tried to use each RAM module alone and the PC restarted every time exactly in the same way. Here a video:
I also launched Windows Memory Diagnostics Tool, result is “no error”.
Now I am afraid it may be a MoBo issue, how can I check it? :confused: What do you advise me to do? Let me know if more details are needed
Nate152 wrote: After enabling CSM, did you press the F10 key to save the setting?
Yes, I saved. I checked it again: it doesn't restart and it keeps the CSM enabled if I reboot or turn off the system, but it restarts and loses the setting when I unplug the power. I checked the PSU's voltages, everything is fine.
Nate152 wrote: When you installed windows, did you do a UEFI install?
I don't remember that, it's been too long. Anyway I checked the System Information App and it says it's in Legacy mode. Is it a problem?
Nate152 wrote: Is your ram a single 64GB kit or are you combining sticks?
I have 4 sticks, 16GB each. They are from 2 different sets of the same product, and I paid attention to put them paired in the correct slots.
Nate152 wrote: All good at default settings?
I think yes, settings look ok with hardware specs. I'm sorry but there are a lot of things that I don't know about in the BIOS. I always used it in default mode, except for enabling CSM and turning off aura leds.