HP Pavilion Power 15-cb G75A can't work on battery

[sopik78]

The notebook is working perfectly fine. However, I've noticed that the BIOS is not correctly identifying the CPU as a Ryzen 7.

[sopik78]

PF38GV5L, S/N from chassis, the board have SPI chip from donor board

[sopik78]

Hello everyone,
I'm encountering a rather unusual issue. I recently swapped the CPU on my Lenovo Legion 5 Pro 16ACH6H NM-D562 motherboard. The original processor was a Ryzen 5 5600H (code 100-000000296), and I replaced it with a Ryzen 7 5800H, which seems to be an engineering sample (code 100-000000295-40). The BIOS doesn't seem to fully recognize it. The laptop works, but the BIOS doesn't identify it as a Ryzen 7; it only detects the code 100-000000295-40. Is there anyone here who might be able to modify the BIOS so that the CPU is correctly identified?

Thanks a lot.
...

[sopik78]

Hello, could someone please help me with the BIOS for an Acer Nitro 5 AN515-55-73FG? The laptop powers on, all voltages seem fine, current stabilizes at around 1.5A, but there's no display. Original BIOS attached. Thank you very much!

AN515-55-73FG
MB LA-K862P GH51M REV 1A
SN: NHQB2EC0011100D4153400
MODEL: N20C1...

[sopik78]

I ordered the motherboard and found it's fully interchangeable, the only difference is the CPU.

[sopik78]

The problem has been resolved. The root cause was identified as a faulty Keyboard Controller (KBC), specifically the IT8987E chip. Following its replacement, the notebook now operates correctly on both AC power and battery power.

[sopik78]

I don't have another battery available, and I have no way to test it elsewhere. However, it appears to be fine; the voltage is stable, and it charges correctly

[sopik78]

Hello,
I have an interesting issue with an HP Pavilion Power 15-cb011nc laptop. The laptop works perfectly fine with the AC adapter connected, charges the battery correctly to 100%, but when the power adapter is disconnected in Windows, it shuts down immediately. When trying to power it on using only the battery, it only shows the "HP" logo, and as soon as it starts booting the operating system, it shuts down immediately. However, the voltage on +VIN is stable and holds at approximately 17V, which means the MOSFET controlling the battery power is correctly open and supplying the...

[sopik78]

Hello everyone, I'm looking into replacing the motherboard in my Lenovo Flex 5-14ALC LC56-14A with a compatible part from a Lenovo Flex5 14ARE LC55-14A. The form factor seems to be an exact match.

[sopik78]

Sorry. my mistake:

INVTPWM 0.67V
DISPOFF# 3.2V

[sopik78]

Hello, I have an issue with the backlight on my [B]HP 250 G8[/B] laptop. Here are the voltage readings:[LIST][*][B]INVPWR_B+[/B]: 19V[*][B]+LCD VDD[/B]: 3.3V[*][B]INVTPWM[/B]: 3.3V[*]It does not have a touchscreen.[/LIST]
Could someone advise me on what else to measure? I've already tested two different LCD panels.



[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3252811}[/ATTACH]Hello, I have an issue with the backlight on my [B]HP 250 G8[/B] laptop....

[sopik78]

Here......

[sopik78]

Friends,
can anybody share EC file for Lenovo IDEAPAD 110-17ikb DG710 NM-B031 rev 1.0 SN PF0MVYAB
Mine had no power for CPU, when changed DC-converter NPC81206, I have all main voltages on the board, KBC reads power button, starts with 0.34A, but no image on the screen.
BIOS and EC dump attached...

[sopik78]

Sorry, my mistake, the MB is like here:

Lakers U42 DIS MB
17819-2
448.0BX16.0021...

[sopik78]

Hello all,
looking for HP Envy X360 15-bp 924309-001 schematic and/or boardview, anybody can help please?

[sopik78]

Hello everyone,

I would like to ask if it is possible to replace the motherboard for the Lenovo Legion 5 16ACH6H NM-D562 with the NM-D601, which has a less powerful RTX 3050 chip. Has anyone tried this? NM-D562 is significantly more expensive than NM-D601.

Thank you.

[sopik78]

Many thanks mon2 👍

[sopik78]

Hello guys, please help me with identify a component on motherboard for Asus ES1-711 DA0ZYLMB6D0 rev: D. Schematic not available.
This IC should be DC-DC converter for 1.8V, marked 13 1 31, check attached files....

[sopik78]

Can you please provide how did you program that chip? I have similar problem with Y540-15IRH NM-C221...

[sopik78]

Hello, I would ask for help with Bios of HP Zbook 15 G3, APW50 La-C381p. I got board board with no DMI, board is working, but starts with Manufactory programming mode, while I have no Feature byte for SN CND82401P8.
How can I obtain the code?

Please help me...