Question BIOS fail. No POST, No Beep. Power cycles

[stuominous]

I thought I updated correctly, I didn't.

I have an ACER Aspire TC-780A with 24G DDR4 RAM.

The computer powers on, the power supply fan initializes, the HDD initializes, there is no beep, no POST, no display, the CPU fan does not turn on. Then the computer powers off. It restarts on its own, does the same thing, then cycles endlessly until I pull the plug.

From what I have frantically researched, I need to reflash the BIOS. Great, I'll do that.

I need to find the correct file and the actual how-to. everything I find is for a laptop. I have a desktop.

Help??

 

[Bob.B]

I thought I updated correctly, I didn't.

I have an ACER Aspire TC-780A with 24G DDR4 RAM.

The computer powers on, the power supply fan initializes, the HDD initializes, there is no beep, no POST, no display, the CPU fan does not turn on. Then the computer powers off. It restarts on its own, does the same thing, then cycles endlessly until I pull the plug.

From what I have frantically researched, I need to reflash the BIOS. Great, I'll do that.

I need to find the correct file and the actual how-to. everything I find is for a laptop. I have a desktop.

Help??

Bios file.

Product Support | Acer Indonesia

How to.
https://community.acer.com/en/discu...e-bios-in-acer-aspire-tc-780a-windows-10-home

 

[stuominous]

Thank you for your prompt reply.

However, I cannot get to the beep. The Acer splash screen does not initialize. I cannot even get to the cmd screen to perform this exact operation.

Is there something that can be done at or prior to POST?

 

[Bob.B]

Thank you for your prompt reply.

However, I cannot get to the beep. The Acer splash screen does not initialize. I cannot even get to the cmd screen to perform this exact operation.

Is there something that can be done at or prior to POST?

Unplug all disk....both cables....test.

Test each stick of ram one at a time.

Replace the bios battery.

 

[SteveMcshwang]

Thank you for your prompt reply.

However, I cannot get to the beep. The Acer splash screen does not initialize. I cannot even get to the cmd screen to perform this exact operation.

Is there something that can be done at or prior to POST?

Did you already try removing your CMOS battery or shorting your CMOS jumper?

 

[stuominous]

Unplug all disk....both cables....test.

Test each stick of ram one at a time.

Replace the bios battery.

Ok.

Did as directed. No luck.

Did you already try removing your CMOS battery or shorting your CMOS jumper?

Yes.
Did both, actually.

 

[stuominous]

Ok. I've tried all the suggestions. No avail.

I now need to know: my Acer Aspire TC-780A - i5 7th gen 7400 or 7400t?

 

[Bob.B]

Ok. I've tried all the suggestions. No avail.

I now need to know: my Acer Aspire TC-780A - i5 7th gen 7400 or 7400t?

I don't see any mention of a 7400t for that machine.

Since it won't post I suppose the only way to be sure is to pull the cpu cooler and read the label on the cpu.

 

[stuominous]

Ok. I've decided to swap the motherboard. Hopefully this will prove fruitful.