Hi

I'm trying to upgrade a Lenovo Ideapad Flex 5 from 8Gb of RAM to 16 GB. Sadly, the RAM is soldered to the board. I identified the current RAM as

Micron MT53E512M32D1NP-046 Specs


I was searching, and I found two modules that I think would work.


Option 1 Micron MT53E1G32D2NP-046 Specs


​Option 2 Micron MT53E1G32D2FW-046 Specs​



I would like to hear opinions on whether the options are suitable for the change.​

Thanks in advance for your answers

I have a Lenovo E15 Gen.3, motherboard NM-D481 with a defective USB-C port. The device starts with battery. When connected to the USB-C power supply, it does not start or charge. 20V is present at the input of the UT5 (High voltage USB PD power switch), 0V at the output
UT5 pin 3 (SNK_PS_EN) =0V
RPT3 Pin1+2 LDO 3V3 present
I suspect that the UT2 USB-C power controller is defective because the UT5 is only controlled by the UT2. However, the UT2 supplies on pin 33 (+LDO_3V3) which makes me wonder if it is defective after all. Unfortunately I don't have it here to test it.
...

Please share the schematic or boardview files for this Mainbord. Got a fried chip/device on the mainboard, and would like to fix it, and check the other both near the fried chip too.
I need to know the model and type of this fried device. Its maybe an capacitor, but am not sure.

Thank you very much!...

Hi please somebody can help me with this bios

Marca: Lenovo
Modelo: Legion 5 Pro 16ACH6H
Bios Chip: Wisbond 74M12JWSIQ
Mainboard Model: HY660 HY601 HY561 HY572 HY56C HY57K NM-D562 Rev: 3.0
Date fab: 2021
Sn: PF3BAAFT
MTM: 82JQ00FEUS

Hi, everyone.

I have this notebook that won't charge.
In Windows, the charger icon doesn't appear on the battery, but the charger turns on the notebook normally.

PU301:

Pin 5 (ACOK) - 5.97v
Pin 6 (ACDET) - 1.83v (should have 2.6)
Pin 16 (REGN) - 6v

PQ308 has no gate voltage, so it doesn't drive PQ309 low

With the battery connected, its voltage goes the reverse way to the jack, having 14v and not 20v:

PQ301 e PQ302

Pinos 1,2,3 14v

Pino 4 5v

Pinos 5,6,7,8 com 14v...

Hello everyone, I have an HP 840r G4 whose BIOS I reprogrammed, and when I turn it on, it takes a long time to boot up. This is not normal. Can you help me find the correct file? I've attached the original BIOS file.
SN: 5CG9184J31
Please help me.​...

Hello,

I have a Lenovo Legion 7 with the following specs:

• RTX 3080
• Ryzen 9 5900HX

A problem started suddenly overnight. The next morning, the laptop wouldn't boot properly — the RGB lighting on keyboard turned on, fans spun for a brief moment, but the screen remained black, and the Caps Lock key didn't respond (no indicator light).
When running on battery power, the laptop would stay in this state for about 35 seconds before automatically shutting off. When plugged into AC power, it would keep restarting every 35 seconds. Holding the power button would shut it down, but...

Does anyone have the manual/datasheet for how to control fan speed for this io chip found in lenovo ideapad notebooks :

ITE IT8586E http://www.ite.com.tw

thank you for any clues

​

Lenovo G565 Laptop onboard LCD Display does not turn on.
Only works with external Monitor.
I am trying to verify that the LCD signals from the motherboard are ok.
The LCD was working, but over time happened to not turn on more frequently.
Now dead.
Possibly the cable from MB to LCD is broken somewhere.

I just wonder how it is detected if external or internal monitor shall be activated ?

I found the following schematic on the net:


Problem 2:
The graphics chip ATI Mobility Radeon HD5470 seems defective.
On Win7...

hi,

unit is a : Lenovo ThinkPad E14 Gen 2 GE4B0 motherboard with the infamous QB6 mosfet de soldering off the board, however the usb c port was replaced by another shop not know the common issue. I replaced the qb6 with a AON7466 however the UB7 started to get really hot and unit would not turn on. I then replaced the UB7 and QB5. I now get 0V on VINT20_IN_F and VINT20_IN on both sides of F6106, however when I inject 12v on either side the unit boots up. Can this be an issue with the USB-C port not soldered properly? I so get 20V 0.039A on the usb-c meter. ...

Hello everyone,

I need a BIOS for the Thinkpad L13 Yoga Gen 4.
S/N: PW05KQH7
Type Number: 21FR-0005GE

A recent BIOS update from Lenovo has bricked the laptop.
Currently there is no charging light.
According to Lenovo's website, the BIOS version R26ET41W/EC R26HT28W (r26uj08w) has been withdrawn due to issues with the system failing to power on after the BIOS/EC update.

Hello everyone,

I have a question regarding this laptop. Laptop came from my friend, completely dead. No reaction for power button, Adpater etc. Diagnosis: burned HIS mostfet from VRAMs. After replacing the mosfet, Laptop starts to power up, KB lights up for few second and switch off, laptop remain ON but no display. Vents are switching ON after some time. No Caps Lock or reaction on USB stick. No display also through HDMI. All coils resistance seems to be OK except resistance on VRAMs – 15 Ohm ( as I study the other repairs or diagnostic of that laptop it should be around 90 -...

My Lenovo L13 Gen 2 was working perfectly until two days a when it refused to boot after previous used.

When I press the power button, the power led will lit and goes off immediately with the CPU fan concomitantly spinning for few seconds and then stop.

The reset button did not help to resolve the issue. I have also performed hard reset by:

1. Disconnected the battery
2. Unplug the adapter
3. Hold down the power button for 15sec. Then increased to 30sec, 45sec and finally to 1m.
4. Then plug the adapter.

Is it corrupt bios?​...

Following this guide (https://www.reddit.com/r/thinkpad/co...g_and_flashing) i re-flashed my t480s BIOS using an external (CH341A) programmer. The flash didnt work, so i reverted back to my BIOS backup successfully. The BIOS in the chip and the BIOS backup file are identical according to windows' file compare. The revert, however, didnt work: the only thing the computer does is flash the power button 3 times when AC power is connected. I've tried unplugging the CMOS battery, holding the reset button and holding down the power button- no signs of life....