Question New motherboard does not POST

[joao.98.sampaio]

Hey there,

Recently I bought a new motherboard, new cpu, ram and ssd.
I wanted to upgrade my old pc, so now I've got:
Motherboard: ROG MAXIMUS XI Hero
CPU: i9 9900k
CPU Cooler: Cooler Master Nepton 240M
Memory: HyperX Predator RGB 16Gb 2933MHZ (2x8Gb)
PSU: Corsair AX860
GPU: GTX 1080 STRIX
Boot Drive: Samsung 970 EVO NVME 500gb (clean)

So I installed the new parts, try to run it and wouldn't recognize the memory, and had one yellow led in dram. So I updated the BIOS firmware, and now I get the same Led DRAM and a different Q Code (AC) which is "Reserved for ASL..." and says to go to this list of ASL status (there will be pic in the list), I don't know what that means and it doesn't Post...

I've already tried:
Booting with only one dimm
Tried it in dimm slots
Took it out of the case and do the same
Cleared CMOS


Now onnly has the power cables, CPU and cpu cooler, 1 dimm and it's out of the case, doesn't POST and gives me the same Q CODE, AC.

I just wanted know if it's possible to get it working, because I don't know what else to do to make it work...

Thank you,
Best regards

 

[alexoiu]

What code getting with RAM removed?

 

[bignastyid]

Is the monitor plugged into the motherboard or GPU? How is it connected(what cable? any adapters)?

 

[joao.98.sampaio]

What code getting with RAM removed?

Is the monitor plugged into the motherboard or GPU? How is it connected(what cable? any adapters)?

If I remove the memory it gives me Q code 53 which is memory not installed or something like that

And I'm using NO GPU at all, using a hdmi cable, tried with GPU too, same problem

 

[alexoiu]

Try testing with single RAM each slot on board. Make sure that you're inserting it all the way in. Some require more force to do it. See if still DRAM LED lit.

 

[bignastyid]

Since that board has usb bios flashback try using it to update the bios(again).

 

[Thomas Yiu]

Did you set the RAM as XMP? Install B2 slot? Ask a friend for DDR4 memory because it seems something with wrong with the memory (QLED light of DRAM)

 

[bignastyid]

Did you set the RAM as XMP? Install B2 slot? Ask a friend for DDR4 memory because it seems something with wrong with the memory (QLED light of DRAM)

Setting XMP requires entering the bios, which requires the board to complete post and output a video signal, both of which are not happening.

 

[bignastyid]

If reflashing the bios doesn't help then you may need to return/RMA the motherboard as ACPI issues usually indicate a borked bios.

 

[joao.98.sampaio]

Try testing with single RAM each slot on board. Make sure that you're inserting it all the way in. Some require more force to do it. See if still DRAM LED lit.

Since that board has usb bios flashback try using it to update the bios(again).

Did you set the RAM as XMP? Install B2 slot? Ask a friend for DDR4 memory because it seems something with wrong with the memory (QLED light of DRAM)

Already tried the two dimms alone in every slot, doesn't work either...

I will download the latest version again and update the BIOS again

No I didn't set the ram as xmp, the pc does not post... But I guess the problem is from the ram...

Thank you all for the help
Best regards

 

[joao.98.sampaio]

If reflashing the bios doesn't help then you may need to return/RMA the motherboard as ACPI issues usually indicate a borked bios.

What do you mean by bored bios?

Sorry

 

[bignastyid]

What do you mean by bored bios?

Sorry

Borked means bad

 

[joao.98.sampaio]

Borked means bad

So I did update again the BIOS and I got the same AC code

 

[joao.98.sampaio]

I think i figured it out, it POSTs now, I used the DIMM Slot B1 (which is not primary) and it did go to the BIOS, I'm now trying to install windows and see if it boots...

I'll update when I get some news, hopefully good news.

Thanks to everyone who tried to help!!
Best Regards

 

[bignastyid]

Good to hear. Odd it was throwing an ACPI code and not a ram code.

 

[alexoiu]

I think i figured it out, it POSTs now, I used the DIMM Slot B1 (which is not primary) and it did go to the BIOS, I'm now trying to install windows and see if it boots...

I'll update when I get some news, hopefully good news.

Thanks to everyone who tried to help!!
Best Regards

If only that slot working, then I suggest removing the CPU and checking the socket for bent pins. You can take a picture of the CPU socket and post it here.