Question SOLVED No display output from iGPU and dGPU after installing dGPU

[Haekki]

EDIT: SOLVED - I checked every connection and reseated the RAM modules, everything is working well again!

Hi,

I have a problem with my older PC not outputting anything to my monitor and I would be very happy if someone could help me. I built this PC myself in 2017, here are the specs:

• Intel i5-7500 CPU
• Asus Prime H270M-Plus MB
• Corsair Vengeance LPX DDR4-2400 RAM
• Be Quiet! Pure Power 400W PSU
• Asus GT 1030 GPU
• Samsung EVO 960 SSD
• WIN 10 with latest updates

I was using the iGPU HDMI output on the mainboard until today, everything was running fine. Today I got a used GT 1030 and installed it. This PC already had a dGPU running for a few days not so long ago, there were no issues back then.

My problem now: both the GT 1030 and the HDMI port on the mainboard won't output anything via HDMI after I put in the GPU. I removed the 1030 after it wouldn't show any picture and plugged the display directly into the mainboard again - no picture either. (I was about to check for certain BIOS/UEFI settings in regards to output the display via dGPU/first PCIe slot)

I removed everything that isn't needed, tried another display, tried another HDMI cable, did a CMOS reset via battery/jumper - no luck. And now I'm stuck and in need of help. The same pc-display-cable-port combo was working only hours ago. Both displays and HDMI cables are working fine with other devices. The 1030 is spinning up, as do all the other fans. The LEDs on the mainboard indicate that there is power - the system itself seems to be running.

Right now there's only a keyboard and a HDMI cable plugged in, no HDD, no NVMe SSD, no GPU, no additional fans. What are my options here? I thought about flashing the BIOS via USB and to test the RAM modules one by one, but I guess there's something obvious I'm missing here.

Thanks in advance, I'd appreciate all the help I can get.

 

[Ralston18]

This:

"Be Quiet! Pure Power 400W PSU"

How old is the PSU? Original to build? History of heaving gaming use?

What was the original dgpu ("dedicated gpu")?

The GT1030 has a recommended PSU wattage of 300 watts. Likely established under ideal conditions. Peak loads could exceed the capabilities of the existing 400 watt Be Quiet PSU. Especially if old and heavily used.

Source for that used GT1030? Could have come from a bit-mining system and the GPU has its' own problems.....

Overall the power requirements of the entire build plus the GT1030 may require much more that 400 watts.

Read the following link:

https://www.tomshardware.com/reviews/best-psus,4229.html

Not with the intent of immediately purchasing a new PSU.

Just to learn more about PSUs and to apply the calculators to your build.

And, if possible try to borrow a known working PSU (at least 500 W) from a family member or friend. Swap in to replace the Be Quiet.

If modular - remember to use only the cables that come with the substitute PSU.

 

[Haekki]

This:

"Be Quiet! Pure Power 400W PSU"

How old is the PSU? Original to build? History of heaving gaming use?

What was the original dgpu ("dedicated gpu")?

The GT1030 has a recommended PSU wattage of 300 watts. Likely established under ideal conditions. Peak loads could exceed the capabilities of the existing 400 watt Be Quiet PSU. Especially if old and heavily used.

Source for that used GT1030? Could have come from a bit-mining system and the GPU has its' own problems.....

Overall the power requirements of the entire build plus the GT1030 may require much more that 400 watts.

Read the following link:

https://www.tomshardware.com/reviews/best-psus,4229.html

Not with the intent of immediately purchasing a new PSU.

Just to learn more about PSUs and to apply the calculators to your build.

And, if possible try to borrow a known working PSU (at least 500 W) from a family member or friend. Swap in to replace the Be Quiet.

If modular - remember to use only the cables that come with the substitute PSU.

Thank you for your reply. The PSU is also from 2017 and was powering this PC from day one. I never used this PC for gaming and always used the integrated GPU via HDMI, except for a few days last year when I tested an AMD RX 550.

After testing I switched back to the integrated GPU. The PSU was working with the RX 550 which should draw a little more than then GT 1030 - that's why I thought the 400W should be enough for the GT 1030.

The GPU was bought from a private seller who says that it was used in a normal office PC, for about a year.

Thank you for the link, I think the PSU could be the problem and I will try to test with another one. Still, I don't understand why I won't get any picture when I revert back to how the PC was running just this morning, e.g. without the GT 1030 and connected via HDMI port of the mainboard.

UPDATE: I tested both RAM modules and now I am getting a picture. Right now I am updating the BIOS version and re-doing all my BIOS settings. After that I will connect everything else, including the GPU. Will report back.