PCIe second slot fails to recognize in Asrocks B450 PRO

pwnguy02
Member

122

12-07-2019, 05:08 AM

I updated the BIOS and verified the graphics cards are functioning in slot one. Both are working in slot one but not in the X16 second slot. I turned off CSM for 4G decoding. Is there something missing? I'm using a Ryzen 3600 with two DRAM sticks (8GB) and Corsair 1000W PSU.

pwnguy02

12-07-2019, 05:08 AM #1

WillandTrent
Junior Member

12-07-2019, 11:27 AM

Cards? Rest of specs?

WillandTrent

12-07-2019, 11:27 AM #2

Cards? Rest of specs?

Fudge_PvP
Junior Member

12-07-2019, 12:18 PM

3060 gigabytes

Fudge_PvP

12-07-2019, 12:18 PM #3

3060 gigabytes

sufferingTwT
Junior Member

12-07-2019, 05:23 PM

Do you have an NVMe drive compatible with M2_1? Keep in mind that the second x16 port (PCIe4) supports only x4, not x16.

sufferingTwT

12-07-2019, 05:23 PM #4

Do you have an NVMe drive compatible with M2_1? Keep in mind that the second x16 port (PCIe4) supports only x4, not x16.

xXFirewitherXx
Posting Freak

878

12-14-2019, 10:52 PM

I don’t have any NVMe storage.

xXFirewitherXx

12-14-2019, 10:52 PM #5

I don’t have any NVMe storage.

moni9432
Member

134

12-15-2019, 12:15 AM

Only SATA SSD/HDD? Please share your full specs—everything connected to the motherboard. I’ll verify if the CPU socket is clean and the CPU is correctly placed. If issues persist, it might mean the slot is damaged.

moni9432

12-15-2019, 12:15 AM #6

Bossthomas2004
Junior Member

12-16-2019, 05:07 AM

I swapped it with another AMD CPU and the same problem persists. The board has five PCIe slots, but only the first X16 slot functions properly. It works when using the riser extension "PCIe Splitter 1 to 4," though not in direct slots.

Bossthomas2004

12-16-2019, 05:07 AM #7