IndiaReFix - Laptop & TV Repair Forum

Dear All,

I present you here 100% working method to disable the GPU on Macbook Pro 2011.

Acer 5536G motherboard 08252-2 came in with no boot. All voltages checked OK. BIOS flashed, but no change. Connected debug card to LPC bus and found post code "00", which means the processor is not running the BIOS. Checked the CPU reset lines on scope and found normal. At this point, it i...

sir i have samsung np-n100sp the flash drive, mouse and external keyboard did not recognize on bios utility and windows but 5v is present the data - & + pin 2&3 goes to tiger point ic, that ic getting heat...what solution for this problem sir Check USB load switch IC which gets short-circui...

Macbook Pro A1286 820-2850-A - Randomly shuts down or shows error at boot "GPU panic/ Kernel Panic". This is a known issue in Mid 2010 Macbook Pro of bad Nvidia Chip, hence i straightway ordered the graphics chip & replaced. The result is Cris-cross pattern on screen and shutdowns... :...

White screen means LCDVDD 3.3V is missing. Try manually supplying 3.3V and see if you get picture. If yes, you know where the fault is..

All the best.

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Here goes the second part. Acer V5-121 does not detect battery, doesn't charge. Interesting case showing how to deal with compatible battery issues [hidden]Knowing that Acer restricts the battery to certain models only, it is logical to think that this is done through BIOS. The battery I ordered had...

Part IInd

HP DV6500 does not boot. The board is DA0AT3.... 19V load switch of main DC power toggles on and off continuously. Surprised to find that the charger IC Max8724 is missing. MAX8724 replaced and 19V rail is stable. Attempt to power on results in fans spinning, but no display. PLTRST signal found ok. ...

Thanks for updating. I had similar issue with Lenovo once. The board doesnt boot up thinking that the lid switch is activated.

Don't you think this is bad connection at PCH rather than PCH going bad? Did you check for open traces?

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