@lfb6, it tested after Coffeelake bad modding. Unsuccessfully.
Did you tried my chip dump?
Well, threadstarter did never answer, but it’s another board and in addition your link is dead.
Seems that some of Asus bios files do contain at least the static parts of this firmware, but there were som differences.
The answer of Michael_Code is cryptic to me, he proposed it / pointed in the direction but writes that he tested it unsuccessfullt??
Oh sorry i thought you started this thread. 
I think he solved the problem this is why not answering.
Hi, can you please reupload the file again?, Thanks!
I only see one linked file and the download link is valid.
I explain it. Flash-chip 64 Kb is firmware for TPU, TurboPowerUnit. Runs before even the SecCore phase in main BIOS. The Main BIOS contains a copy of the TPU module. When we port BIOS from 370 mobo to 270 mobo main BIOS see damaged TPU flash and rewrite it. Next start mobo Impossible. And we get a brick. Can restore only with CH-341 programmer. This port did for CofeLake CPU for old mobo.
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So this method will work? I already got tpu firmware by extracting it using uefitool (z370 prime bios).
@progamer
I understand correctly that you want write TPU dump to TPU flash-chip?
If YES - then answer yes.
Yeah because I’ve tried to flash bios to wrong chip, so now motherboard won’t start at all only show Rgb lights.
I too have a Asus Prime z270-A and it suddenly would not post.
I think Windows Update somehow corrupted it.
I have been searching for how to fix it. Trying to identify the bios chip on the board and how I would learn to use the tools. This and the Z390 post give me hope.
The chips on the board seem smaller than the ones I have seen on You tube and I haven’t seen any with a little notch on one end.
How do Identify the bios chip?
I googled model and picture. I would say bios chip is between two 16x slots and really close to the m.2 22110 screw-post. Reasoning is: there is 9-pin connector, which can be used to bios flashing.
I would try getting CH314 with 8-bin bios-clip. Probably cheapest way.
First read and make backup of current bios->just in case. Then download new one, add values from old bios to new one with FD44Editor or other tool. After saving, flash new edited bios.
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if y’all really are still having problems my uncle has a computer like this i’m sure he wouldn’t mind if i copied all his chips I have a programmer minus serial and mac of course. could be a little while next time i see him tho?
Search for a 128Mbit / 16 MByte SPI chip, read it’s content and check this dump with UEFIToolNE, you definitely don’t want to touch other chips if not needed. Structure should look like this:
Read at least two a 100 % identical dumps to be sure you can read properly. This way you can check your dump for obvious errors and be sure that you can read properly / the soic clip sits properly.
Thank you guys
I didn’t get an email showing you guys responded.
One difference I have is… case fans (and xmp led) will spin up and keep running if I push power on button (cpu must be installed) and no trouble beeps or trouble leds display only power and led
I found the same (wrong) chip as in the picture too bad their isn’t one of the right one on a Prime Z270-A board…lol
Let you know when, I think, I found it
Thanks 
I think you are right
Googled the numbers (best I could)
“e4 25Q128 13EDF 99 CHK 65215N bios chip”
And I saw the almost identical image from the following post.
I will start shopping for the tool you mentioned…
stay tuned
Buddy… There’s nothing like a visual inspection of your own IC, Asus and other OEMs will implement several models, yours could be not a 25Q128.
The location is correct and it’s the main SPI IC for the mb model.
Latest bios 1302 flash chips in VSCC table:
EF4018 (Winbond W25Q128)
20BA18 (Micron N25Q128)
C84018 (GigaDevice GD25x128)
EDIT: I didn’t understand if the shared photo was indeed of your board or taken from another user on the web, if its yours, all good.
Here is a close up
How do you mean “yours could be not a 25Q128.”?
Those are the first set of numbers at the top.
25Q128A 13EDF 99 CHN 65215N
Just trying to understand what you are saying…
Just trying to learn…
I have ordered Style A kit here
That should help me read the chips.
I saw a few on Amazon but they would have cost me $50 (including taxes)
Could of bought it even cheaper if I knew exactly what I needed in a kit…
Won’t see it till close to February.
Thanks for the links
Let you know when I scan the chip.
Later
just make sure you get a backup of whats on that chip and never delete that backup just in case.
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