HP Elitebook 820 G2 - BIOS LOCATION

[carlucci]

Hello, I have a laptop (HP Elitebook 820 G2) on my workbench that came from another computer repair shop and they messed it up.
They changed the BIOS chips, I can't find the electrical diagram of this motherboard, so I come to ask you, if you can tell me what is the bios chip "model" located on U365 and U366 ?

Thank you.

[RethoricalCheese]

Re: HP Elitebook 820 G2 - BIOS LOCATION

main is W25Q128FVSQ.

This is flash chip support list written in my dump:
20BA18h
C22018h
EF4018h
1C7018h
C84018h

Not sure about EC bios model tho.

[carlucci]

Re: HP Elitebook 820 G2 - BIOS LOCATION

Hi. Thank you for you answer, but I mean, in the board where is located the main bios? in U365 or in U366 ? because someone change the chips.

[carlucci]

Re: HP Elitebook 820 G2 - BIOS LOCATION

Hello ?!? anyone please.

[marcin02152]

Re: HP Elitebook 820 G2 - BIOS LOCATION

hi
main is U365 (25L12873F), EC is U366 (25Q16DVSIG)

[Mr.customer]

Re: HP Elitebook 820 G2 - BIOS LOCATION

what is the original main chip and original EC ?

[stingerchamp]

Re: HP Elitebook 820 G2 - BIOS LOCATION

Two bios chips

One near PCH called main bios

One near EC called EC bios , generally we programme KBC


In some boards

Only one chip PCH near

EC bios embedded inside EC