Hi friends, I have a Lenovo G710 that doesn't want to boot. I tried to repair the power connector (it was broken and no longer had perfect contact) and after I fixed the problem and assembled the computer it did not start. Only the power LED lights up. The screen is closed, the supply voltage to the connector on the motherboard is 18.8v, in pin 3 it is 1.4v, there are no components that overheat. It's been a few days since I've been looking at it for a long time and I don't understand what got it, it worked perfectly. Am I doing something wrong with the commissioning? What do you say, how can I solve this problem. I think a scheme might be helpful, but I only found it in .bin format. Can you help me with a .pdf file or how to open this .bin file. Thanks.
-
-
Re: Motherboard scheme Lenovo G710 (20252)
Pegatron DUMBO2 schematic not available .The *.bin you found is most likely a bios dump. -
Re: Motherboard scheme Lenovo G710 (20252)
And yet, what schemes do you use. Colleagues on this forum exchange information and solve problems appeared at Lenovo G710 based on a hardware scheme, are posts with captures of this scheme, even on youtube are tutorials the same. So can you help me?Comment
-
Friends. I beg you to help me in this situation.
Lenovo X240 with a video problem. Native Intel drivers are not installed,
after installation, a black screen. It works with the standard Microsoft driver.
Understanding that there are problems with the video core,
I ordered a motherboard from Lenovo X250.
The laptop turns on, starts up, there is no image on the internal display.
The image is output to the external monitor.
I ordered another motherboard from Lenovo X250.
The laptop turns on, starts up, there is no image on the internal display.
... -
Hello everyone,
OK, so here is my issue.
This Lenovo B470 motherboard I am troubleshooting died and I identified it is the discrete Nvidia graphics chip that has lost it's ways!
So I removed it and now I am trying to change this motherboard to use UMA graphics, but I am having an issue interpreting the attached diagram. I have a 10K resistor in at the R2013 position and another one at the R2012. R2010 and R2011 are empty.
The motherboard starts, the fan spins but no display. It turns off by itself. I restart it and it does start but stays on...08-12-2024, 02:01 PM -
my laptop is lenovo flex 5 14ITL05
recently my power supply for this laptop developed a fault.
which caused a short in my usb c port -- verified with a new charger.
rant: so, i went to the repair tech in my country, he asked for a huge repair cost when i decided to get it done someplace else this "great person" nicked my bios chip, asked me to be aware for repair scams lol.
I was stupid and unable to find the flaw at the moment. Another repair tech told me that my bios chip was stolen and an 8mb bios chip is in place of that. he told me that a 32... -
Hello,
I need your help with an issue I'm encountering while diagnosing a NM-D471 REV 2.0 motherboard from a Lenovo laptop. The laptop won’t power on. I started by checking the power rails, including the main power line and the 3.3V and 5V rails.
I do have a proper 3.3V across the line, including at the chip responsible for managing 3.3V/5V—same goes for the 5V rail. I haven’t tried to simulate a power-on yet, since the main issue still needs to be resolved.
I have full access to the boardview, but I’m not sure what to check next to isolate the problem.
... -
Good evening everyone, I have recovered a Lenovo V520 desktop PC, on which I have mounted an NVDIA GF9500GT 512Mb graphics card (and it is not the only one I have tried) to replace the one originally mounted, namely NVIDIA GT730 (Lenovo code FRU01AJ853), I replaced it because it has 2 Display Port outputs that I cannot use, as I don't have such a monitor or DP/VGA converter. The problem: Windows I can see it, but the Lenovo logo or the BIOS/UEFI, not. So I can't enter the Bios. To view the Boot or the Bios, I have to remove the dedicated graphics card and connect to the integrated graphics (therefore...08-29-2024, 11:06 AM
Comment