LENOVO IdeaCentre B540P CIH77S_v1.0_DIS SU2

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yashan
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LENOVO IdeaCentre B540P CIH77S_v1.0_DIS SU2

Post by yashan » 24 Nov 2016, 17:44

CIH77S_v1.0_DIS SU2 MX25L2026E.rar
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stanleo
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Joined: 14 Aug 2020, 20:36

Re: LENOVO IdeaCentre B540P CIH77S_v1.0_DIS SU2

Post by stanleo » 23 Aug 2020, 00:15

  1. Is this just the dGPU BIOS, because ROM chip size is only 256KB?
  2. Do you also have the Main BIOS (8MB) on BU2, EC BIOS (256KB) on EU2?
  3. Do you have the schematics for this DIS variant of the board?
I have Lenovo IdeaCentre B540p USA model from 2012 with i7, H77 chipset and nVidia GeForce GT650M (2GB DDR3 VRAM).
But my dGPU BIOS is only 128KB Pm25L010 chip. But your ROM chip is 256KB Macronix IC.
So I will have to swap my dGPU BIOS chip to 256KB of same brand model PMC or Macronix?
Will it be safe and will it work? Please PM me.
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