Error code a8 on Taichi z270

Hi there -

I recently got a Taichi z270 board.  It works... sort of.

Basically, every time I power up, it almost immediate shows an error code of a8, which is unfortunately not in the Dr. Debug documentation.  And it hangs immediately - no chance to get into UEFI or anything.

Then, if I immediate power off and power back up, the CPU fan spins up, stops, and then starts again, and the whole things boots as normal.  So I can use my PC, but obviously something is a little off.

I've done the whole "clear CMOS" thing, which seems to be a suggested response to a whole lot of errors, but it didn't fix the issue.

Any ideas?  I'm kinda lost here.

Thanks for the response!

So, I figured it out - it's actually a RAM issue.  It seems that my Corsair ram sticks (CMK16GX4M2B3000C15) are not officially supported by this board.  So even though the board will read their XMP profile (which is for 3000MHz), this problem occurs when I attempt to use it.  If I shut off XMP, the issue goes away.

That's a bit of a bummer, but at least I figured it out.

mbaren wrote: Hi there - I recently got a Taichi z270 board.  It works... sort of. Basically, every time I power up, it almost immediate shows an error code of a8, which is unfortunately not in the Dr. Debug documentation.  And it hangs immediately - no chance to get into UEFI or anything. Then, if I immediate power off and power back up, the CPU fan spins up, stops, and then starts again, and the whole things boots as normal.  So I can use my PC, but obviously something is a little off. I've done the whole "clear CMOS" thing, which seems to be a suggested response to a whole lot of errors, but it didn't fix the issue. Any ideas?  I'm kinda lost here.

So a memory, or really yet another DDR4 XMP profile issue. I've used XMP profiles with every mother board with DDR2 and DDR3 memory I've owned, but DDR4... I wouldn't use the XMP profile, or I should say I can't use them, nothing but problems.

What I use that works for me with DDR4 memory is the DRAM Tweaker feature in the DRAM Configuration screen. It looks like it just reads and lets you apply some of the XMP data/settings from the memory, but must be only a subset of the XMP data. Give that feature a try.

An A8 POST code? The Ax codes are generally SATA and storage drive related. Might be the memory that AHCI uses causes that failure when using the XMP profile.