Windows 10: I can only see the post / bios screen when booting on my DP monitor if I have CSM support...

I recently reset my bios and wiped my drives to start fresh. Ever since I did this I can only see the post/bios screen on my hdmi connection if nothing else is plugged in! CSM enabled will allow it to appear on the DisplayPort connection.

Weird!

submitted by /u/lwvfx
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:)

 

PC wont boot up (No POST, No Video)

I recently installed a new Asus M5A99X Evo r2.0. The motherboard green LED lights up and the case and cpu fans spin. But there is no video when its hooked up to my monitor.

Steps that i have tried:
"No POST", "system won't boot", and "no video output" troubleshooting checklist

Made sure all connections are properly connected.

Flashing the CMOS

Tested the PSU

Followed all steps in the user manual

If there are any links that you guys can point me to or suggestions that could help it would be highly appreciated. Thank you

 

No BIOS screen on boot

Situation:

Have recently redone water cooling loop. System has been running fine for the last 5 days. This morning I was trying to tidy up cabling and then booted it again to make sure it still worked and everything was connected.

The login prompt was on the screen, but I didn't have the keyboard there yet. About 15 minutes later I came back with keyboard and mouse from my other computer and it was off. Then I realized that the fan for the NB/IOH was not plugged in, and that it most likely was the reason it had turned off. Although I have not had a fan there longer than that, it does go up to 90C or more without one after a while.

Now each power on results in a fans an pump starting an leds on the MB, followed a power off and restart with no video on monitor at all. Can't get it to do anything else.

Steps tried already:

Reset BIOS by setting jumpers.
Reset BIOS by removing battery.
Remvoed ram and left one stick in.
Tried one stick of alternate ram.
Checked PSU with tester.

PSU looks ok and nothing else gets it past the blank screen. Always restarts again after I power it on.

Thanks for any suggestions.

 

Dual Monitor issue

Thanks Junaid for your prompt reply. Do you mean that changing the cable (DP port to DP port becomes DP port to HDMI port) can fix the problem? DP port connects to onboard display DP port and HDMI port connects to monitor's HDMI port.

Regards,

Wilson