Question is Aorus B550m Pro P Causes PC cant boot after sleep?


Nov 20, 2016
everytime i go sleep manually or automatically, when i move mouse or click on keyboard or just push power-on button on case, the computer try to wake for likely almost 3sec with all fans spinning before dead with barely click noise from PSU.
this is the checkmate, i cant make my computer on again, except remove the PSU power cable and plug it again, push power button. then yes, my computer powered on peacefully. this is happening since i change my motherboard from MSI B450 Tomahawk MAX to Aorus B550m Pro P. and my proc is 5800x. work well on previous mobo but not with the new one. please... help.
here is my gear :

Mobo : MSI B450 Tomahawk MAX >> Gigabyte Aorus B550m Pro-P
Proc : Ryzen 7 5800x
GPU : Asus Dual RX6600xt 8GB OC
RAM : Corsair Vengeance RGB Pro RT 2x16 3600 c18
Storage : 1. Samsung NVME 1tb (top) 2. TimGroup MP33 2tb (Bottom)
PSU : Cougar GX-F 650w 80+Gold

and this is what i've done trying:
  • Replace RAM with my old Klevv 2x8 3200 c16
  • Replace GPU with my old RX580
  • Update BIOS to newest
  • update GPU Driver to newest


Retired Mod
Well, first of all, that B450 Tomahawk max is the better board to begin with, so you might be better off simply using that board. If one board works completely fine with the exact same hardware but the second board does not, then it pretty much HAS to be the hardware, UNLESS of course you are trying to use the same Windows installation for both. Did you do a CLEAN install of Windows when you changed motherboards?

If you changed boards because you thought that having PCIe 4.0 support was going to mean something for your graphics card, I'm here to tell you, it isn't. And if that's the case I'd change back to the old board and keep the other one for a backup or sell it.

A 1% difference, at MAX, theoretically even, is not a good trade for the problems you are seeing.

Are all of the C-states enabled in the BIOS or at least set to Auto?

Have you tried doing a hard reset of the BIOS after you updated it?

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 about three to five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes while the CMOS battery is out of the motherboard, press the power button on the case, continuously, for 15-30 seconds, in order to deplete any residual charge that might be present in the CMOS circuit. 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, A-XMP or D.O.C.P 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 BIOS to fully reset and force recreation of the hardware tables.