Service Manual


              .
  :50
                 .
  :100
 7 .   — 

            BIOS     .
  : 
       ) (      )HDD (  
 .
  :
                      .
  :
   
     UEFI      BIOS          
)UEFI.(
  :
 Absolute       BIOS   Absolute Persistence Module  
     Absolute.
  :
  TPM 2.0         )TPM (    .
  :
PPI Bypass               )PPI ( BIOS
    TPM PPI  .
  : 
PPI Bypass               )PPI ( BIOS
    TPM PPI   .
  : 
PPI Bypass               )PPI ( BIOS
   Clear.
  : 
          TPM      .   
     TPM  .
  :
           TPM      .   
     TPM   .
  :
SHA-256     BIOS TPM    SHA-256    
      )PCR (  TPM   BIOS.
  :
         PTT  PTT   .
  : 
42 