no bios access on boot-up or restart

[supertramp]

i can still access bios if i shut down pc and turn off power on power supply switch, then push power on switch on case, led fans flash for a few seconds, then turn power back on at power supply switch, and turn the system on, i get the motherboard logo and bios access, after that if i restart or from reboot, i get the multi colored screen instead of motherboard logo and bios access.

[PeterOz]

@phillpower2 @supertramp
Not wanting to butt in
Withe the kill power and restart you can get the bios.
When you enter the bios is the day and time correct?
If not check cmos battery

[phillpower2]

No worries Peter (y)

supertramp, will just let you get back to Peter for now.

[supertramp]

time is ok in bios and win11, remembered i did a bios update recently, probably the issue, sorry guys, i’ll try going back one version

[phillpower2]

Please leave the BIOS alone, you are where you are with it so don’t risk bricking the MB altogether.

Off to research your MB and will come back and edit this post, no need for you to reply meanwhile.

[COLOR=rgb(44, 130, 201)]Edit to add;

Before doing the below you need to do the following checks first ( If you can );

Try another screen.

Try another video cable.

Try another video port on the MB.

Try another keyboard or the present keyboard in other ports, use one of the black USB 2.0 ports.

Make sure that all RAM sticks and any other add on cards are seated securely.

Make sure that all connections from the PSU and case switches to the MB are securely connected.

Check for any bared wires.

Disable the wireless device in the BIOS.

If after doing all of the above and after doing a few restarts the issue is the same, try disconnecting the case power switch etc from the front panel header on the MB and then doing the below, see attachment to help with this;

Your MB doesn`t have a power test switch so you will then need to short out the 2 power on pins on the MB header to get the PSU to activate, you can use a small flat bladed screwdriver or a paper clip bent into a U shape, this is perfectly safe if you do not touch anything else, the idea is to see if we can get a normal BIOS screen first time;[/COLOR]

[PeterOz]

also, when you have finished the above
hold the shift key when you press shutdown
turn back on
do you get splash screen/bios

[supertramp]

i have finished all tasks as per your suggestions, no change, but wait, i made an observation which may lead us to the culprit, when after turning off the power switch off and removing the cord at psu, waiting 30 sec. and pluging the power cord back in, when turning on the switch at the psu back on i saw a white light flash from the motherboard( not the rgb color of the motherboard) i noticed once that on shutdown the rgb on the motherboard stayed on, not every time, when not removing the power cord from psu resulted in a low white flash when turning on the switch at psu, when unpluging the power supply cord from psu resulted in a bright white lite when turning on the switch at psu, seems a motherboard issue ta me, what ya all think!

[PeterOz]

So you tried the shift + shutdown

[supertramp]

yes, every thing suggested, peter

[PeterOz]

last thing I have
close all programs
hold power button in until computer turns off
turn back on

[supertramp]

no change peter

[supertramp]

i’m thinking motherboard, will remove it and check for any thing behind the board tomorrow

[PeterOz]

could be power supply - long shot
check bios
do you have retain power to usb when computer off
if yes
disable
test

[PeterOz]

An Admin has given this suggestion
Click the Start menu and select Settings.
Select Update and Security.
Click Recovery.
Under Advanced startup, click Restart now. …
Select Troubleshoot.
Choose Advanced options.
Select UEFI Firmware Settings.
Click Restart to restart the system and enter UEFI (BIOS).

[supertramp]

thanks peter for suggestions, not sure in bios, to turn off usb power, in usb configuration i have 5 options, legacy usb support, xhci hand off, usb mass storage driver support, port 60/64 emulation, and mass storage device. the admin suggestion results in fuzzy screen and no advance screen, is there a key to push on start up that would take me to the advanced options?