Re: Dell AW 13 R3 with cpu failure blink code

@chestercc: Thanks for sharing your experience!
Can I check if the CPU is dead?
I guess to check the CPU I have to fix the step-down controller first.

Re: Dell AW 13 R3 with cpu failure blink code

Hi piernov, PL300 to GND is 0.0V.
You suggest to replace the TPS51212DSCR_SON10_3X3 (step-down controller) because there should be some voltage at PL300? Thanks!

Hi all!

I was working on my emails and suddenly the system crashed in an instant. No life sign at all. Not even power leds.
On the mainboard a mosfet was burnt (see picture) so I decided to replace the two mosfets with new AON7422G.
The part numbers are PQ300 and PQ301 (see schematics).

After the replacement the laptop shows 2 red and 1 blue blink code.
That's a cpu failure code according to Dell.
Does that mean the repair went well?

I read that a corrupt bios could be the cause for cpu failure code so I created a bios dump...

Re: New Members - please post your introductions here

Hello all,
I am Luke from Germany!
Greetings!