[SOLVED] GPU is not recognized by the motherboard

[panva]

Hi people,

I recently made a new build, which sometimes works, but not all the time... The problem is that when i switch on my pc, it can't boot because the GPU is not starting, and my motherboard gives me the VGA light on.

If I change the PCIE slot for my GPU, the pc boots, but after 1 day or something I get the same problem again. I also tried to rebuilt everything from scratch, updated BIOS e.t.c but nothing works. The system will fail to boot at random.

System Specs:
-AMD Ryzen 5 3600 Wraith Stealth CPU - 6 cores 3.6
- Motherboard MSI MPG X570 GAMING EDGE WIFI
-GPU MSI Radeon RX 5700 XT MECH OC - 8GB GDDR6 RAM
-Corsair Vengeance RGB PRO DDR4-3600 DC - 16GB
- Cooler Corsair RM750x (2018) - 750 Watt

 

[Darkbreeze]

Does it fail to boot into Windows or does it give you the "no signal detected" message when you power on? Is there a display during the POST process and the image is only lost once Windows starts trying to load into memory, or does the problem after a day become that there is no signal at all, not even for POST or to go into the BIOS with?

What Windows version are you running?

Have you tried a HARD rest of the BIOS, followed by going into the BIOS and manually setting the graphics setting to PEG/PCI rather than Auto or iGPU?


BIOS Hard Reset procedure

Power off the unit, switch the PSU off and unplug the PSU cord from either the wall or the power supply.

Remove the motherboard CMOS battery for five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes, press the power button on the case for 30 seconds. After the five minutes is up, reinstall the CMOS battery making sure to insert it with the correct side up just as it came out.

If you had to remove the graphics card you can now reinstall it, but remember to reconnect your power cables if there were any attached to it as well as your display cable.

Now, plug the power supply cable back in, switch the PSU back on and power up the system. It should display the POST screen and the options to enter CMOS/BIOS setup. Enter the bios setup program and reconfigure the boot settings for either the Windows boot manager or for legacy systems, the drive your OS is installed on if necessary.

Save settings and exit. If the system will POST and boot then you can move forward from there including going back into the bios and configuring any other custom settings you may need to configure such as Memory XMP profile settings, custom fan profile settings or other specific settings you may have previously had configured that were wiped out by resetting the CMOS.

In some cases it may be necessary when you go into the BIOS after a reset, to load the Optimal default or Default values and then save settings, to actually get the hardware tables to reset in the boot manager.

 

[kerberos_20]

try enable CSM
or adressing above 4G

 

[panva]

Does it fail to boot into Windows or does it give you the "no signal detected" message when you power on? Is there a display during the POST process and the image is only lost once Windows starts trying to load into memory, or does the problem after a day become that there is no signal at all, not even for POST or to go into the BIOS with?

What Windows version are you running?

Have you tried a HARD rest of the BIOS, followed by going into the BIOS and manually setting the graphics setting to PEG/PCI rather than Auto or iGPU?


BIOS Hard Reset procedure

Power off the unit, switch the PSU off and unplug the PSU cord from either the wall or the power supply.

Remove the motherboard CMOS battery for five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes, press the power button on the case for 30 seconds. After the five minutes is up, reinstall the CMOS battery making sure to insert it with the correct side up just as it came out.

If you had to remove the graphics card you can now reinstall it, but remember to reconnect your power cables if there were any attached to it as well as your display cable.

Now, plug the power supply cable back in, switch the PSU back on and power up the system. It should display the POST screen and the options to enter CMOS/BIOS setup. Enter the bios setup program and reconfigure the boot settings for either the Windows boot manager or for legacy systems, the drive your OS is installed on if necessary.

Save settings and exit. If the system will POST and boot then you can move forward from there including going back into the bios and configuring any other custom settings you may need to configure such as Memory XMP profile settings, custom fan profile settings or other specific settings you may have previously had configured that were wiped out by resetting the CMOS.

In some cases it may be necessary when you go into the BIOS after a reset, to load the Optimal default or Default values and then save settings, to actually get the hardware tables to reset in the boot manager.

It doesn't pass the the POST and I get no output signal on my screen. Once I switch on my pc, I get a red VGA light and nothing shows on my screen. As I said the problem is solved if I change my PCIE slot or remove the battery from the motherboard, however the next day I have the same problem again. Thanks for your fast response.

I am running Windows 10 home 64.

 

[panva]

try enable CSM
or adressing above 4G

Hi, I will try to enable CSM. What do you mean by addressing above 4g?

 

[kerberos_20]

its bios setting
from your manual:
advanced -> pci subsystem settings -> above 4g / crypto mining
set it to enabled

 

[panva]

its bios setting
from your manual:
advanced -> pci subsystem settings -> above 4g / crypto mining
set it to enabled

I just did, I will let you know if the system will continue working the next days. Thanks a lot

 

[Darkbreeze]

Actually, it's "above 4g decoding", not above 4g addressing, and it is literally not going to be of any consequence on your system unless you are running a 32bit version of Windows. It could not, ever, have anything to do with no display signal. It would not possible be able to be factor until AFTER the POST process.

Above 4G decoding:

This allows 64-bit PCIe devices to use addresses in the 64-bit address space. Since 32-bit operating systems cannot access the 64-bit address space*, this option is for compatibility reasons. In most cases, it does not need to be enabled. In my experience, most motherboards default to having this setting off. There's generally no harm in enabling it if you have a 64-bit OS.

Besides which, if that was the problem, it would be EVERY time, not here and there or work for a bit and then not work.

The same goes for CSM. If compatibility support was the problem, and it CANNOT be, since that is a UEFI card in a UEFI motherboard, it would be EVERY time, not hit and miss. Neither of those can be the problem. You are throwing crap at the wall to see what sticks. Nothing more.

Check your display cable at both ends to make absolutely sure that there are no bent or discolored pins and that it is fully seated at both the graphics card and monitor.

Check both ends of the auxiliary power cables going to the graphics card, at both ends, to make sure there are no bent pins and that both connectors at each end of the cable are FULLY seated.

If that is all ok, then I'd pull the CPU and check for bent pins.

 

[kerberos_20]

csm will disable gop driver, 4g will just change adress space
eitherway its to see if bios has bug or not

if there wont be any change then its hardware related gpu or psu

 

[Darkbreeze]

That still doesn't offer any explanation as to why it would work fine one time, or three times, and then not work the fourth or sixth, or whatever. Or why changing slots would have any affect on it. Neither CSM nor Above 4g should be affected by a change of slots. Doesn't make sense to me and I've NEVER once seen this be an issue on any modern system with UEFI hardware. I'm steadfastly unconvinced.

 

[kerberos_20]

That still doesn't offer any explanation as to why it would work fine one time, or three times, and then not work the fourth or sixth, or whatever. Or why changing slots would have any affect on it. Neither CSM nor Above 4g should be affected by a change of slots. Doesn't make sense to me and I've NEVER once seen this be an issue on any modern system with UEFI hardware. I'm steadfastly unconvinced.

https://rog.asus.com/forum/showthre...doesn-t-recognize-gpu-as-having-uefi-firmware

X370 Taichi 5.80 issue with DisplayPort & CSM

TL;DR: Monitor doesn't display until login screen when using DisplayPort with EFI bios (CSM disabled)...

forum.asrock.com

http://forum.asrock.com/forum_posts...title=warning-to-users-with-older-video-cards

 

[Darkbreeze]

That's relevant to cards that are both legacy AND UEFI based, like the R9 200 series and the GTX 900 series, but shouldn't be relevant to newer full UEFI hardware.

And the other thread SPECIFICALLY refers to cards older than the 700 series. Again, not relevant from what I can see.

 

[kerberos_20]

mine old 1060 had issues with gop driver with some bios revisions
also 5700xt still has legacy (int10h) bios code in it, its not full uefi (depend on vendor)

 

[Darkbreeze]

Fair enough. I don't think it's relevant, but if it is, then at least they know.