Destroyer-Br
Member
Last Activity: Today, 01:00 PM
Joined: 02-09-2023
Location: Toledo Parana
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[COLOR=#e74c3c]Just to clarify, the correct motherboard model is LA‑L181P, not LA‑J871P.[/COLOR] -
[B]My response:[/B]
Thank you for your comments. I think you may have misunderstood some parts of my explanation, so let me clarify:[LIST=1][*][B]+3VALW Sequence[/B]
You're correct that +3VALW only appears once the board is triggered—so I did read the start‑up sequence properly.[*][B]EC_ON[/B]
EC_ON [I]is[/I] present even when the board is off. I confirmed this because I'm seeing +5VALWP generated by PU502, which receives 5V_EN via EC_ON directly from the SIO.[*][B]Main BIOS (UT5)[/B]
Asking whether the main BIOS is “working” doesn't make sense in this...Leave a comment:
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[B][B]Additional Info[/B][/B]
Just to complement the information:[LIST][*]No signs of [B]low impedance, shorts, or high consumption[/B] around [B]JPQ1, JPQ2[/B], or [B]after UQ2[/B].[*]I also tested by [B]injecting 3.3V via PJ302[/B] (with 19V present and the board switching 5V by itself).
→ The board [B]draws 0.184A (184mA)[/B] in this condition.[/LIST]
Regarding the [B]initial short on the Super I/O[/B] (which was the first component replaced):[LIST][*]The short was located on the [B]+3VLP line[/B].[*]After replacing the Super I/O, the impedance returned to...Leave a comment:
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[HELP] Acer AN515-55 (LA-J871P Rev: 1B) – Board won't power on after GPU investigation – Suspecting Super I/O or PCH
[B][HELP] Acer AN515-55 (LA-J871P Rev: 1B) – Board won't power on after GPU investigation – Suspecting Super I/O or PCH[/B]
Hi everyone,
I'm working on an Acer Nitro 5 unit with the following specs:[LIST][*][B]Motherboard[/B]: LA-J871P Rev: 1B[*][B]Model[/B]: Acer AN515-55-59MT[*][B]S/N[/B]: NHQ7JAL00403906A973400[*][B]SNID[/B]: 03902728734[/LIST][HR][/HR] [B][B]Initial Issue[/B][/B]
The laptop initially presented [B]graphic issues[/B] and [B]driver failure (Code 43)[/B] for the GPU.
After preventive maintenance (cleaning, thermal... -
The attachment did not upload, here is the bios backup...Leave a comment:
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Hello friends, how are you?
I need help cleaning the ME region of my Dump file.
This equipment is going through a PCH replacement, and I'm installing a new PCH today.
LA-L181P Motherboard Rev: 1B
ACER MODEL: AN515-57-79TD
S/N: NHQESAA005225086703400
SNID: 225034416Leave a comment:
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Could someone insert the serial data into the bios or put it in manufacturer mode to program it at power-on time?Leave a comment:
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LBTT1121[USER="590947"]LBTT1121[/USER]
I recorded the file you sent me, but the serial was different and the machine still takes more than 10 seconds to generate videoLeave a comment:
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Greetings, friends of profession and hobbies!
Could you help me with creating a bios file?
For DELL Inspiron 15 7000
Service Tag:
2ST2QK2
Express Code
6095454194
Motherboard:
BKD40 LA-D821P Rev:1.0 (A00) 2016-07-01
Config: I7 7500u + Nvidia 940MX
This notebook came from another service with the bios file changed, I don't have the original and with this or others that I record, it takes a long time to display the video (bios post) and also presents a TPM errorLeave a comment:
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TanksLeave a comment:
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New problem ahead with my case.
Notebook had turned on correctly, everything seemed fine, today I took it apart to finish the maintenance and then I would deliver it to the customer.
But the notebook stopped turning on, the blue LED lights up, I have 3.3valw and 5valw, but I don't have SUSP# so 3.3VS and 5VS are inactive.
Could it be that the EC was corrupted?Leave a comment:
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Thank you very much, I uploaded the file, changed the pch and it worked perfectly!
GRATEFUL [USER="237374"]SMDFlea[/USER] SMDFleaThank you very much, I uploaded the file, changed the pch and it worked perfectly!
GRATEFUL [USER="237374"]SMDFlea[/USER] Leave a comment:
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Hello friends, how are you?
I needed help to clean the ME region of my Dump file.
This equipment is undergoing PCH replacement, I am installing a new PCH today.
Motherboard LA-J871P Rev: 1B
ACER MODEL: AN515-55-59MT
S/N: NHQ7JAL00403906A973400
SNID: 03902728734...Leave a comment:
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