PC Boots Without Display

[Maplez]

I have an old ThinkCentre M98p that will boot to windows but without display, I tried using the iGPU, an AMD RX 6300, Matrox M9128 but none give a display.

I've encountered this problem in the past on a dual socketed system I had, you will get a signal (nothing displayed though) and until the PC boots into windows and installs the driver I won't get any display.

I'm wondering if anyone knows how to fix this, I also get no display during POST, BIOS or boot.

[Robchil]

8 minutes ago, Maplez said:

I have an old ThinkCentre M98p that will boot to windows but without display, I tried using the iGPU, an AMD RX 6300, Matrox M9128 but none give a display.

I've encountered this problem in the past on a dual socketed system I had, you will get a signal (nothing displayed though) and until the PC boots into windows and installs the driver I won't get any display.

I'm wondering if anyone knows how to fix this, I also get no display during POST, BIOS or boot.

how do you know it's booting if you don't get any output?. 

does it show up in the network?. can you RDP to it? 

 

 

[Maplez]

11 minutes ago, Robchil said:

how do you know it's booting if you don't get any output?. 

does it show up in the network?. can you RDP to it? 

 

 

I hear the windows boot chime, I can also press Enter sign in after the chime, press alt+F4 then enter which shuts down the PC

[Robchil]

11 minutes ago, Maplez said:

I hear the windows boot chime, I can also press Enter sign in after the chime, press alt+F4 then enter which shuts down the PC

have you tried another monitor?.. or is it one of those all in one units?.. it should have option for secondary monitor tho. 

 

[Maplez]

It's a SFF PC, the monitor I'm using works, my test bench is using it rn.

 

[Robchil]

2 minutes ago, Maplez said:

It's a SFF PC, the monitor I'm using works, my test bench is using it rn.

 

well.. do you know username and password for the system?.. you should be able to read out the ip in the dhcp log on your router. just match it with the mac adress on your pc. it's usually marked somewhere on it. 

i would try remoting to it to find out what's wrong... 

[Maplez]

7 minutes ago, Robchil said:

well.. do you know username and password for the system?.. you should be able to read out the ip in the dhcp log on your router. just match it with the mac adress on your pc. it's usually marked somewhere on it. 

i would try remoting to it to find out what's wrong... 

It doesn't have a password.

I know windows will not show me anything useful since this isn't a windows problem but a bios problem.

I'm trying to figure out how to fix it since eventually (if im lucky) windows will install the driver and boot with display but I cannot access the bios, I am selling this PC so I need it to be working without any problems 

[Robchil]

1 minute ago, Maplez said:

It doesn't have a password.

I know windows will not show me anything useful since this isn't a windows problem but a bios problem.

I'm trying to figure out how to fix it since eventually (if im lucky) windows will install the driver and boot with display but I cannot access the bios, I am selling this PC so I need it to be working without any problems 

you can't get a post after resetting bios either? 

[Maplez]

15 minutes ago, Robchil said:

you can't get a post after resetting bios either? 

I get no display until the windows sign in screen. I can press the bios key and enter the bios but I cannot see anything.

[Robchil]

8 minutes ago, Maplez said:

I get no display until the windows sign in screen. I can press the bios key and enter the bios but I cannot see anything.

so you get display when loaded into windows? 

 

if you do it's because some system are out of bounce on the resolution or frequency it uses for bios on some monitors  and systems.. that's why trying another monitor would be smart.  even if it works normal on other systems. 

 

[Maplez]

11 minutes ago, Robchil said:

so you get display when loaded into windows? 

 

if you do it's because some system are out of bounce on the resolution or frequency it uses for bios on some monitors  and systems.. that's why trying another monitor would be smart.  even if it works normal on other systems. 

 

It fixed itself, seems to have been a problem with UEFI and CSM conflicts. Resetting the bios didn't fix it and I could never access the bios but hey its fixed. All I did was install windows with a PC set to UEFI only on its drive, but I already removed the drive and still got no display. OEM computers hurt my head

[Robchil]

Just now, Maplez said:

It fixed itself, seems to have been a problem with UEFI and CSM conflicts. Resetting the bios didn't fix it and I could never access the bios but hey its fixed. All I did was install windows with a PC set to UEFI only on its drive, but I already removed the drive and still got no display. OEM computers hurt my head

yeah.. UEFI have given me headache's before...  on lenovo and dells.