Question Issues with newest series graphics cards - Motherboard issue?

[vipe155]

Hi everyone,

• Motherboard: ASRock B550M Pro4
• CPU: AMD Ryzen 5 5600
• RAM: Corsair Vengeance LPX 16GB (2x8GB)
• DDR4 Video Card: MSI VENTUS 2X 4070
• PS: Corsair RM750x 80 PLUS Gold
• Operating System & Version**:** WINDOWS 10 PRO 19045.4651
• BIOS Version: 3.20
• GPU Drivers: 560.94

I recently had a thread where I bought a 7700 XT that would not boot/no display. After trying two cards, I gave up on that:

https://forums.tomshardware.com/thr...rcolor-7700-xt-2nd-one.3851607/#post-23317246

So, I just bought a 4070 instead, deciding to go back to NVIDIA (and figured this would actually work)...and with this new card my system does boot, but does not work correctly. Boot is slow, and my monitor loses signal in-between POST and the Windows 10 sign-in screen. In Windows, the system runs sluggish overall, with some stuttering at times. I've had a couple of random restarts.

I tried running 3DMark to compare what was going on with the new card and my old 6650 XT and got a horrible score with seemingly some kind of CPU frequency problems.

I've tried rolling back my BIOS version (to see if the newest one has some weird issues with new cards), pulled a RAM stick, etc. but nothing changes. What could be going on here? I'm back on my old 6650 XT, and everything is working fine again.

 

[Lutfij]

Motherboard: ASRock B550M Pro4
+
BIOS Version: 3.20
The latest BIOS update was also a vulnerability patch. If I were you, I'd flash to the latest version, then clear the CMOS after verifying that the BIOS was successfully flashed. In order to clear the CMOS, disconnect from the wall and display, then remove the CMOS battery, press and hold down the power button for 30secs, then replace the CMOS battery after 30mins.

So, I just bought a 4070 instead, deciding to go back to NVIDIA (and figured this would actually work)...and with this new card my system does boot, but does not work correctly. Boot is slow, and my monitor loses signal in-between POST and the Windows 10 sign-in screen. In Windows, the system runs sluggish overall, with some stuttering at times. I've had a couple of random restarts.
Did you run DDU to remove all GPU drivers(Intel, AMD and Nvidia) in Safe Mode, to later install the latest GPU driver sourced from Nvidia's support site in an elevated command?

PS: Corsair RM750x 80 PLUS Gold
How old is the PSU in your build and what did it power throughout it's tenure?

RAM: Corsair Vengeance LPX 16GB (2x8GB)
Got a link to this ram kit?

 

[vipe155]

I can try that on the CMOS. I did use DDU in safe mode to wipe everything before installing the 4070. The PSU is a month old.

RAM link

 

[vipe155]

So I got a response from ASRock customer service that figured out what is going on.

First, they told me to try the newest beta BIOS, but that didn't do anything. Also, they said I could try the card in the lower PCIE 3.0 slot on the board, as seen in the picture:

And that works:

Unfortunately, it's a problem for me because the card blocks the audio connector, external USB 3.0, etc. Why exactly a new gen card isn't working in the main PCIE 4.0 slot makes no sense to me.

I'm not really sure what to do now.

 

[boju]

So bottom pcie slot uses chipset lanes? Pcie 3. Cpu supports pcie 4, i wonder if it's a bios compatibility setting, ie pcie auto gen detect. What happens if you change first pcie slot to gen 3 or even 4 rather than auto?

You said using bottom slot blocks stuff so i guess that rules out using a riser cable to orientate gpu differently (depending on case), but just in case, not using riser cable by any chance for the top slot? Sometimes these cause problems for pcie 4 cards if not made properly to spec where forcing gen pcie 3 usually solves.

 

[vipe155]

So bottom pcie slot uses chipset lanes? Pcie 3. Cpu supports pcie 4, i wonder if it's a bios compatibility setting, ie pcie auto gen detect. What happens if you change first pcie slot to gen 3 or even 4 rather than auto?

You said using bottom slot blocks stuff so i guess that rules out using a riser cable to orientate gpu differently (depending on case), but just in case, not using riser cable by any chance for the top slot? Sometimes these cause problems for pcie 4 cards if not made properly to spec where forcing gen pcie 3 usually solves.

Honestly I tried finding a setting in the BIOS for the PCIE slot and was unsuccessful (so far). I don't use any risers.

EDIT: I found it in the BIOS and switched the slot from Auto to Gen 3, and now it seems I'm good. I would have never figured this was a problem...

 

[boju]

Hmm, can you select gen 4 as well? Possibly on auto is the issue. Let Asrock know of your findings.