Question PC won't POST after crash?

[alexandrajjj]

Hi all. So a few months ago I built a new PC. These are my specs:
- Motherboard: Asus B650E-F
- CPU: Ryzen 7700X
- RAM: TEAMGROUP T-Force Vulcan DDR5 32GB Kit (2x16GB) 5600MHz FLBD532G5600HC32DC01
- GPU: Asus TUF 4070 Ti
- PSU: CORSAIR RMX Series RM850x 80 Plus Gold
Early on I started having memory issues (PC would freeze randomly). I ended up testing one stick at a time and discovered that one of the sticks was faulty so I replaced the kit with the one above. Ever since then it's been running fine with DOCP enabled.

However, I was just playing Cyberpunk and my PC suddenly froze in the same way it froze before. I couldn't even get to a different tty so I manually shut it off by holding the power button. I then attempted to boot it up again but now it won't POST at all.

When I turn my PC on, the fans and RGB lights come on, but the orange DRAM light immediately turns on and stays on. The screen stays completely black.

I tried reseating RAM, including trying each individual stick in each slot by itself. I then tried resetting my motherboard by removing the CMOS battery and shorting the CLRTC pins as per the manual. I then tried reseating each RAM stick again. Despite all of this, the exact problem persists without any change. I even tried using the single working RAM stick from my initial build.

Is my only solution at this point to replace my motherboard? Thanks for any help.

 

[kira-faye]

Try a single stick in other slots - doesn't make sense, but I've seen it bring boards back. Also, if your board supports flashing the BIOS direct from USB, try that. It shouldn't make a difference, but again, I've seen it fix things.

Beyond that, yes, you're probably to "RMA motherboard."

 

[alexandrajjj]

Try a single stick in other slots - doesn't make sense, but I've seen it bring boards back. Also, if your board supports flashing the BIOS direct from USB, try that. It shouldn't make a difference, but again, I've seen it fix things.

Beyond that, yes, you're probably to "RMA motherboard."

Hi Kira, thanks for reaching out. I already tried the single sticks in each slot, but that didn't work. I just tried your other suggestion of flashing BIOS, but same result. It seems that no matter what I try, it simply won't POST. I even tried removing my GPU and plugging in my monitor to my integrated GPU.

Do you think this is more likely to be a motherboard issue or CPU issue? I think the probability of it being the actual RAM sticks is exceedingly low because even the stick that was working months ago changes nothing.

 

[kira-faye]

Hi Kira, thanks for reaching out. I already tried the single sticks in each slot, but that didn't work. I just tried your other suggestion of flashing BIOS, but same result. It seems that no matter what I try, it simply won't POST. I even tried removing my GPU and plugging in my monitor to my integrated GPU.

Do you think this is more likely to be a motherboard issue or CPU issue? I think the probability of it being the actual RAM sticks is exceedingly low because even the stick that was working months ago changes nothing.

Sadly no real way to know unless you have another system to test the CPU in.

I've seen a lot more motherboard failures than CPU, though.

 

[alexandrajjj]

Sadly no real way to know unless you have another system to test the CPU in.

I've seen a lot more motherboard failures than CPU, though.

That's disappointing. I just had another question: if I were to buy a replacement CPU and motherboard, would it be safe to install the new CPU into the old motherboard? Is there any risk that the old motherboard fried my CPU and might fry my new one? Or would it be wiser to replace the motherboard first?

 

[kira-faye]

That's disappointing. I just had another question: if I were to buy a replacement CPU and motherboard, would it be safe to install the new CPU into the old motherboard? Is there any risk that the old motherboard fried my CPU and might fry my new one? Or would it be wiser to replace the motherboard first?

It's unlikely but not impossible. If you're going to spend all that you might as well go AM5 and just get DDR5 while you're at it.