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The Asus Tuf Gaming FX505GT Is A 15.6 Inch Laptop With A Intel Core i5 9300H And A GeForce GTX 1650. It has Windows 10 and was made by Asus in 2018.

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Black screen, but keyboard and fans work

My screen is black also HDMI output not working, i changed the BIOS battery to no avail.. keyboard lights up and fans work.

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Hi @tor_w ,

Try connecting an external monitor to the HDMI port and check if there are any images being displayed on it. Even a TV with HDMI ports can be used as an external monitor.

Press Fn+F9 (both together) to toggle the display between laptop only, external monitor only or both on together.


@jayeff no that did not work either


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Hi @tor_w ,

Seems as though the laptop is not starting correctly and passing POST. Perhaps due to a corrupted BIOS.

Try a full power refresh and check if that resolves the problem. A power refresh restores the BIOS to its factory default condition. Any user defined BIOS settings that you have changed to suit your particular requirements will have to be made again

Turn off the laptop and disconnect the charger if connected.

Open the laptop and disconnect the main battery from the motherboard. You don’t have to remove it, just disconnect it.

Remove the RTC coin cell battery from the motherboard. Note the orientation of the battery before removal. Usually it is +ve on top, marked on the battery. Whilst the RTC battery is out, measure its voltage. If it is <2.5V DC replace it. The battery type is marked on the battery. (CR2032?)

Here’s a image from a teardown video that may help.

Block Image

(click on image to enlarge)

Press and hold the laptop’s Power button for a full 30 seconds to drain any residual power left on the motherboard and then release it. This will restore the BIOS to default.

Correctly reinsert the RTC battery, reconnect the main battery, re assemble the laptop, connect the charger and try turning it on.

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i tried that also to no Avail



I assume that there is no HDD in the laptop but a SSD instead. If this is correct it is hard to know whether the laptop is booting up as you can't hear the SSD spin up as you can with HDDs.

Two things to try:

Try starting Windows in safe mode. If you can then at least it proves that it is booting OK and that it may be a normal startup booting problem or a driver problem.

If no good try getting into BIOS after starting the laptop and check if you can get into BIOS with a display. Press F2 very soon after pressing the Power button.

I don't know about your model but with some there is no device manufacturer's logo seen any more on startup as it seems that you go straight to the Windows boot screen, so the time frame to get into BIOS is very narrow, before it boots into Windows. This is because Fast Startup has been selected in Windows.

If you can't get into BIOS either then there is a motherboard problem.


could his issue be a video card issue?


@Ayden Aldrich

It might be a GPU problem but I don't think so.

The laptop has two GPU options. The discrete GPU (Nvidia) which is hard mounted (considered as non user removable) on the motherboard and the Intel GPU that is integrated in the Intel CPU.

It would be unusual for both of them to fail. Normally you should be able to access the integrated GPU if the discrete GPU has failed even if only to get into BIOS with a display assuming that the CPU hasn't also failed i.e. no startup


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