0187 EAIA data access error. The access to EEPROM has failed.
đọc rom con ATMEL bằng RT809F xong thì nó thành ra thế này ad có cách gì ko chỉ mình với, tks you!
A computer that has graphics chips built into the motherboard that use part of the computer's main memory for video memory is said to have Unified Memory Architecture
a board designed for use with adiscrete graphics card, so it doesn't have a GPU built in.
Mainboard X451CA mạch mở nguồn AC_BAT_SYS dùng BQ25A; đo tại PR8806 mất nguồn ra 19V AC_BAT_SYS
Đo thực tế ic sạc BQ25A: 20 =19v; 4 ACDRV = 0v; 5 ACOK = 0v; 6 ACDET = 3,3v.
Đúng ra chân 6 ACDET = 2.6v do phân áp từ 19V qua PR8814 127KOhm và PR8815 20KOhm.
Đo thực tế PR8814 trở tăng lên...
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