AB350m Pro4 couse graphics card issue?

Just now there is a problem in the device manager with PCI encryption and decryption controller driver (PCI Bus 36, device 0, function 2) - drivers for this device are not installed. It can be related to my problems?

Thank you for response.
I will check under Linux, but I think it's hardware problem. I forgot to write that when I leave UEFI (with saving settings or not) computer does not reboot, only fans run on full speed and reset button doesn't work.

mati998 wrote: Thank you for response. I will check under Linux, but I think it's hardware problem. I forgot to write that when I leave UEFI (with saving settings or not) computer does not reboot, only fans run on full speed and reset button doesn't work.

(Gah! Why can't I edit my previous post? Grr... Sorry for the double reply.)

This has me very interested in your situation, as mine is similar.
One of my symptoms is that the system -- most of the time -- is not restarting properly. Full shutdown works fine, but Restart from Windows or UEFI just hangs there with no video, no hdd activity, and full fans. (When I say "most" of the time, it's because restarting from UEFI is more of a 50/50 chance, it seems.)

I have done everything I can to rule out a RAM issue. Windows' memory diagnostic and MemTest86 have both cleared multiple (4+) passes with zero errors.

My other primary symptom is that the system will freeze up seemingly at random.
However, I've found that these freezes are very rare -- if not completely non-existent -- when doing basic productivity such as web browsing, or watching videos, say with Plex. BUT, if I try playing games (BlueStacks, Star Trek Online, etc), then the freezes will occur. It might take a few minutes, or it might run fine for an hour (though usually not more than an hour).

When the freezes happen, audio is generally goes silent (although a couple times it has looped the last second of audio), input freezes, hdd activity freezes, the video display remains (no artifacts or corruption). In fact, I can disconnect/reconnect the monitor, and the frozen video is still there. (In the past, I've found that video card failures won't return the image like that....reconnecting the monitor usually acts like the card's in sleep mode or otherwise no signal...so this strikes me as odd. But maybe I'm mistaken.)

I'm about to try swapping out the card with an older Radeon, but the frustrating part is that the current card -- an R9 270X -- is too big to fit in any of my other systems to test itself. :(

It seems my system is trying to make an ass of me, at the moment.

Last night I ran through several hours of memory tests -- which I've done before, mind you -- in addition to using some remote monitoring ("Remote System Monitor" on Google Play) so I could possibly get a last second read if it crashed again.

Naturally, nothing turned up. Ran Furmark a couple times, no issue. So I tried gaming a little while monitoring, trying to get it to crash again before swapping out the video cards to test, and....nothing. Ran for almost 2 hours with no problems, even restarting worked fine. About to try some more and see if it's still holding...

I cannot fathom how or why the RAM would have been "loose" or mis-seated (it definitely took some effort to get them in and out these many times. Surely a memory error would have shown up in memTest somewhere.... But, still, crossing my fingers that this has worked.

The only oddity I found last night were a couple sensors reporting odd temperatures. (Auxiliary and VRM, I believe.) They were reporting 80C and 100C initially, and during gaming backed down a bit to 77 and 97 (that may have been due to just the ambient...it was cold last night.) Near as I can tell, these are just wonky readings, and are common. If anyone wants to correct me, feel free.

Ubuntu test is decisive. It's not SW after all.

DDR4 slots are very prone to improper RAM installation.

VRM temps are way too high for 24/7! Check with your hand, but don't touch them! 90C will cause severe burns! If the VRM are really running at 90-100C you won't be able to get your hand even at 4-5cm.