Re: Dell 5559 La-d071p

Changing bios chip keeps power stable, vr_on and slp3 active but no output voltage on vrm even after replacing pu603. With original bios vrm gets around 1v for a fraction of a second and goes off as slp3 went off. Any advice?

Attached schematics for reference....

Hello guys, I am working on this board but this one had a short on 5vs rail, so I found the following component short and replaced:
1. PU102
2. UZ2
3. PU603
4. PU605
5. HDA27

Now the led white for 1 second and off, only 5valws/3valws present. vr_on and slp3 is 3v active for 1 second and goes off.
Replaced bios chip from a donor board, now fan spins up. After solid white led goes off no display coming.
Does anyone has solution for this problem or did I miss something or did something wrong? Any help from you guys is very much appreciated....

Re: Dell 5567 i3 7100u dead shorted please help identify chip

Only chip SY8286BRAC will work. SY8286CRAC is for 5v

Re: Dell 5567 i3 7100u dead shorted please help identify chip



Most probably theres a short in +3vs rail, much likely a short mosfet. what voltage you registered on pl100?...

Re: Dell 15-AAL15 LA-D071P

Hello guys, I have somewhat same problem but this one had a short on 5vs rail, so I found the following component short and replaced:
1. PU102
2. UZ2
3. PU603
4. PU605
5. HDA27

Now the led white for 1 second and off, only 5valws/3valws present. Now for this 1 second signal vr_on is 3v on pin 40.
Replaced bios chip from a donor board, now fan spins up. After solid white led goes off no display coming.
Does anyone has solution for this problem or did I miss something or did something wrong? Any help...

Re: Motherboard schematics archive?

Hello guys, does anyone has any schematics for Asus motherboard P5GCMX1333? I have a few boards no display problems. Maybe related with pwm, a schematics may help to find the faults.

Kind regards
Nash

Re: New Members - please post your introductions here

Hello guys,
I am Nash from Mauritius island, I work as BDM for an IT firm. I've joined here at bad caps because I see very useful information here in troubleshooting computer accessories, and a good place to share and acquire knowledge in these related subjects.

Kind regards to you all