No display signal after installing new motherboard

mcole1226 · Oct 16, 2017

I'm currently getting no display signal when I boot my PC. I recently swapped out my MSI Z270 Gaming M5 motherboard for an ASUS ROG STRIX Z270F after experiencing many issues with the former. As of right now, my PC contains the following parts:

Intel Core i7-7700k
ASUS ROG STRIX Z270F
Kingston HyperX Fury DDR4 2400MHz (2x8GB)
Samsung 850 EVO SSD (250GB)
WD Black HDD (1TB)
EVGA GeForce GTX 1080 Ti SC Black Edition GAMING
Corsair RM850i

After installing the new motherboard, I pressed the power button. I immediately saw the ASUS ROG splash screen for the BIOS on my monitor before it lost the signal and went black. The power remained on after the display signal was lost. I powered off my PC after a few minutes of waiting and unplugging and replugging the HDMI cable. I powered it on again and immediately got no display signal.

After rebooting a few times and immediately getting no display signal, I pulled my graphics card out and used the onboard graphics. I still got no display signal. I also tried using a DVI cable and a different monitor. Same result.

I then tried booting with only one RAM stick, but got the same result both times. I also tried booting with only one SATA drive, but got the same result both times as well.

After the aforementioned troubleshooting, I tried shorting the RTC RAM jumper to clear the CMOS. After that, I tried booting and saw the ASUS ROG splash screen for the BIOS again. I pressed the DEL key and then the F1 key to enter the BIOS. After entering the BIOS, I was able to move the mouse around for a few seconds until the display signal was lost again.

Now, I'm stuck. Each time I clear the CMOS, I can move around in the BIOS for a few seconds before losing the display signal again until the next CMOS clear. I've also checked the CPU and CPU socket for bent pins, but all seem OK.

I appreciate any and all help you have to give.

clutchc · Oct 16, 2017

Sounds like the board needs to go back, doesn't it. Might try again with no drives connected. Or better yet, take the board out of the case and try it breadboard fashion.

Another thing to consider is, did you inadvertently add an extra standoff that shouldn't be used. Not all boards require the same number of standoffs and/or not in the same locations. One might be shorting the back of the board.

mcole1226 · Oct 16, 2017

clutchc :

Others have suggested a defective motherboard to me, as well. Both my old and new motherboards used the same amount of standoffs/screws. I tried with no drives, but got the same result. I have not tried to bench test the motherboard (I'm hoping to avoid that, as I have all the cables routed perfectly).

I appreciate your help, friend. I'll probably send the motherboard back. If you have any further suggestions or advice, please feel free.

clutchc · Oct 16, 2017

mcole1226 :

Not just the same amount, but in the same location. Be sure the two closest to the PCI slots are both required or (if only one is used) the correct one is installed. Same with the ones directly across from those.

If you carefully remove the board, you can usually not disturb the cable management too much. Then when replacing with the same make/model board, things should return as they were. Breadboarding outside the case with just CPU/cooler, memory, PSU, monitor (to iGPU), KB, and (if needed) mouse connected will more or less prove out the board. Assuming you know those components are OK. You can start the system by momentarily shorting the two pins that the power button would connect to.

smorizio · Oct 17, 2017

if your mb has the usb flash back port use it put the newest bios on the mb see if the error stops.

mcole1226 · Oct 17, 2017

smorizio :

It doesn't, unfortunately. Thanks, though.

mcole1226 · Oct 19, 2017

clutchc :

mcole1226 :

Not just the same amount, but in the same location. Be sure the two closest to the PCI slots are both required or (if only one is used) the correct one is installed. Same with the ones directly across from those.

If you carefully remove the board, you can usually not disturb the cable management too much. Then when replacing with the same make/model board, things should return as they were. Breadboarding outside the case with just CPU/cooler, memory, PSU, monitor (to iGPU), KB, and (if needed) mouse connected will more or less prove out the board. Assuming you know those components are OK. You can start the system by momentarily shorting the two pins that the power button would connect to.

So, I replaced the motherboard, but I'm having the same issue. I also tried with a different PSU, but same result. Does that mean it's my CPU?

smorizio · Oct 19, 2017

will it post with no gpu and one ram stick. if not check for bent pins under the cpu or remove the mb from the case see if it dead shorted.

mcole1226 · Oct 19, 2017

smorizio :

It doesn't POST with or without the graphics card and it doesn't POST with any number of RAM sticks, including zero. I RMAed the new motherboard and I'm getting the same result with the replacement. So, it's not the motherboard or CPU socket pins, either.

clutchc · Oct 19, 2017

It almost sounds like the BIOS doesn't recognize the CPU. Like it needs the BIOS updated. But the website for that board shows all CPUs supported from the first BIOS (0604). So that is highly unlikely.

Darkbreeze · Oct 19, 2017

Actually, your system DOES include Crash free bios 3, and i'd probably at least TRY that before sending it back. Might just be a corrupted bios image. If you can download a more recent bios file to a flash drive you should be able to flash it that way. Maybe.

1.11.3
ASUS CrashFree BIOS 3
The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the
BIOS file when it fails or gets corrupted during the updating process. You can restore a
corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains
the BIOS file.
The BIOS file in the motherboard support DVD may be older than the BIOS file published
on the ASUS official website. If you want to use the newer BIOS file, download the file at
https://www.asus.com/support/
and save it to a USB flash drive.
Recovering the BIOS
To recover the BIOS:
1.
Turn on the system.
2.
Insert the motherboard support DVD to the optical drive, or the USB flash drive
containing the BIOS file to the USB port.
3.
The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and enters ASUS EZ Flash 3 automatically.
4.
The system requires you to enter BIOS Setup to recover the BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F5> to load default
BIOS values.

mcole1226 · Oct 21, 2017

Everyone, my issue turned out to be the CPU. Thanks for all your help.

clutchc · Oct 21, 2017

mcole1226 :

Wow! That doesn't happen often. Or was it user damaged?

mcole1226 · Oct 24, 2017

clutchc :

It was always problematic, but got worse as time went on.

Search

No display signal after installing new motherboard

mcole1226

Prominent

clutchc

Titan

mcole1226

Prominent

clutchc

Titan

smorizio

Titan

mcole1226

Prominent

mcole1226

Prominent

smorizio

Titan

mcole1226

Prominent

clutchc

Titan

Darkbreeze

Retired Mod

mcole1226

Prominent

clutchc

Titan

mcole1226

Prominent

TRENDING THREADS

Latest posts

Moderators online

Share this page