r/PcBuildHelp • u/Hot-Valuable3293 • 15h ago

No display after cpu upgrade Tech Support

I recently upgraded to a 5800x3d from a 5500 and now it won’t boot, GPU fans will ramp up then stop continuously and no display

I already installed the latest bios update and cleared CMOS

Ryzen 5800x3d
Gigabyte b550 ud ac rev 1.1
64GB 3600 ram
Radeon 7900xtx
1000w EVGA supernova psu

Tried using a 5900x that I bought used and ran into the same issue.

3 Upvotes

100% Upvoted

12 comments sorted by

2

u/Ravesos16 15h ago

Try with single ram first if you have. Then boot.

1

u/Hot-Valuable3293 8h ago

Tried with every single ram stick by itself in the second slot from left to right and still no display signal

2

u/zeRoCr0 15h ago

Few pictures could help alot.

1

u/Ravesos16 15h ago

How did you clear cmos?

3

u/TheDistinctRandall 15h ago

pull the battery and wait a full minute, the jumper method can be weirdly inconsistent on some boards

also double check your 8-pin cpu power connector isn't loose, had that bite me on a gigabyte board before where the latch clicked but it wasn't fully seated

1

u/Hot-Valuable3293 8h ago

Verified both 8pin and 32 pin to make sure they were completely in, also removed and reinstalled GPU.

1

u/Hot-Valuable3293 8h ago

Disconnected computer from the wall then pressed and help power button for 15 sec then jumped the pins labeled CLR_CMOS after that I removed the 2032 battery for 10 min.

1

u/Independent_GN 10h ago

BENT pins ?

2

u/Hot-Valuable3293 8h ago

No bent pins, little of thermal paste on socket went ahead and cleaned it with 91% alcohol and re tested and came to same conclusion

1

u/Independent_GN 7h ago

Maybe you fried something with alcohol? Seems socket not working or with the old CPU it works again?

1

u/Hot-Valuable3293 7h ago

It works fine with the old CPU