Re: Gigabyte GA-Z170X-Gaming 3 Schermatics

Hi all,

Does anyone has a bios for a Gigabyte GA-Z170X-Gaming 3?

I have a motherboard that starts then switch off. I checked for shorts but could not find any.

It is strange that if a remove the connector from CPU rail, the motherboard starts in a kind of boot loop. As soon as I enter put the connector for CPU rail, then it switches off.

I was thinking to write first a bios in the chip (25L6473E) and then check if the issue still persists.

Re: Asus Prime Z270-A shuts down

Hi all,

Thanks for your reply, I worked more on the board and here are my latest findings.

It seems that around the flash chip W25Q128A I am missing some resistors, the missing resistor pads are square and shows a bit of solder compared to others that are showing round and flat. These are shown F1R16 and F1R15 in the attached schematics which is coming from a Asus Prime Z390-A R1.02 board. These resistors are also showing with the same ID in the attached boardview Asus STRIX Z270E GAMING R1.02A.

I ordered...

Re: Gigabyte GA-Z170X-Gaming 3 Schermatics

Here it is the schematic....

Re: Asus Prime Z270-A shuts down

Ok, I did further tests. As I mentioned I removed the flash chip and now when powering the board, CPU fan spins a bit, then turns off and then turns again on and ... then no more shutdown.

First I checked for any sign of shorts on USB connectors but there are none. Further from the power supply connector, I checked +12V, +3.3V and +5V and all are fine.

Then I was able to measure some voltages: VCORE = 0.936 V. There are two other coils on the upper part of CPU and these have 1.097 V (not sure what are these for).
...

Hi all,

I started looking into motherboards repair after watching lots of videos on dicky96's channel. Thanks for your work!

I have this Asus Prime Z270-A motherboard with the following symptoms: motherboard will turn on, then it executes its own tests, passes CPU and DRAM and then shuts down by itself. It is doing it no matter if memory module(s) are inserted or not. I checked for shorts, but I could not find any. I checked VCORE = 0.9V, but it shuts down itself very quick so really impossible to check for other voltages.

I was reading on the web...

Re: New Members - please post your introductions here

Hi all,

I am Chrys and my hobby is electronics. I was watching this forum for a long time, but I never posted something up to now.

It is nice to see people helping each other in this community!