PC turns on but no display or keyboard/mouse (B450m + R5 5500)

  • Hi there and welcome to PC Help Forum (PCHF), a more effective way to get the Tech Support you need!
    We have Experts in all areas of Tech, including Malware Removal, Crash Fixing and BSOD's , Microsoft Windows, Computer DIY and PC Hardware, Networking, Gaming, Tablets and iPads, General and Specific Software Support and so much more.

    Why not Click Here To Sign Up and start enjoying great FREE Tech Support.

    This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  • Hello everyone We want to personally apologize to everyone for the downtime that we've experienced. Due to the issues we've had, your password will need to be reset. Please click the button that says "Forgot Your Password" and change it. Thanks, PCHF Management
Status
Not open for further replies.

Bence Kovács

PCHF Member
Nov 19, 2022
2
0
23
When I turn on the pc the cpu fan and case rgb fans turn on. But there is no display, neither do my keyboard and mouse light up.

I tried looking up what could cause this, I found that I should clear the CMOS, reset the BIOS.
I tried that several times, in multiple ways. First as my motherboard manual said, to short the ClrCMOS pins. Then as I was advised online, removed the CMOS battery and waited a while, while system powered off. Then I tried every imaginable combination of these.

I also tried to move the RAM around, try the sticks seperately, etc. That didn't help either.
I double checked every PSU connection, reseated everything, I didn't find success there either.
I even tried multiple power outlets around the house, making sure power isn't the problem.


I am losing hope, someone please help. What should I do? How can I fix this issue?

Also, my motherboard does not have LEDs or beeps to debug, as far as I know.






Everything I did, in more detail:
As my first pc build, I went as cost-efficient as I could. I got an AsRock B450m PRO4-F with a Ryzen 5 5500, rx 5600xt, 2x8GB Cl16 3000Mhz ram, samsung 980 500GB ssd and 650W Gold+ PSU. This together was 500 bucks. I think I got a good price on everything. (5600xt was 150$, used)

First it turned on as it should, I installed windows, ran some benchmarks, checked temps, everything went fine. I saw that my ram ran at 2133mhz, but the motherboard supports 2933mhz as well, so I turned on XMP in the Bios, but kept everything else default. I turned it on, tested things again, it seemed good. A couple hours later, I was gaming, then suddenly the display, keyboard and mouse cuts off, but the PC keeps running. I restarted the PC but nothing changed. Then I powered it off completely and tried to clear the CMOS, waited, turned it on. It turned on, but a few seconds later turned off, then on again, then off again. I powered it off and tried to reset the bios once again, now with removing the cmos battery. Since then it still has no display, whatever I do. I tried reseating everything, clearing the bios multiple times, moved the ram around.

The motherboard does have the latest update, so should be compatible with the ryzen 5000 series cpu. But I did buy it used, that concerns me, even though it worked initially. I also bought the GPU and PSU used, but I don't think that is the problem.
The CPU, RAM, SSD and case are all brand new, out of the box.
If you have any ideas, tips what I should try, please let me know :)
Thanks in advance
 

Attachments

  • 79.5 KB Views: 6
OK, you will have to get a product key for the OS before we can help.. So this means i will have to close your thread. Basically you are running an OS illegally .
 
Status
Not open for further replies.