• Brand: Lenovo
• model: T420
• Motherboard Model: LNVH-41-AB5700-f00g
• model: T420
• Motherboard Model: LNVH-41-AB5700-f00g
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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 -
Gigabyte G1 Assasain motherboard Bios IC model needed !
Bios ic fried and I cant read the model on top.
Thanks ! -
Hello guys, i need help with this problem, I have a NM-D041 mobo, it came with low impedance in 3v linear regulator rail, the cause was a damaged EC controller ITE8227e-192. I ordered a new one and replaced it. This laptop have a different chip for keyboard management and it8227e pins for programming ITE chips are not accesible through keyboard interface, I flashed it using i2c interface pins with vertyanov programmer because laptop was dead and SPI flash didn't have power (only 3v EC) so it couldn't access firmware stored in SPI memory. I read SPI and extracted it8227 firmware from original BIOS... -
hi, does anyone have schematics for a HP Elitebook 840 g9?
The specific motherboard model is: 6050A3452701-MB-A01
but schematics close to that are also appreciated. thanks in advance!!05-08-2025, 08:28 AM -
As title folks.
Looking to dismantle and repair a Lenovo Ideapad 300-14ISK Model Name 80Q6. Anyone has a schematic to this?...