Troubleshooting Guide

 µ µ www.hp.com –11
$µ µ POST
660-Display cache
is detected
unreliable ( µµ
cache 
 )
  µµ
(cache) 
µµ 
  
  
.
  µ  
   
 µ.
912- Computer
Cover Has Been
Removed Since Last
System Startup
( µµ 

  
 
 µ)
 µµ 
 
   
 µ
  µ.
∆  µ .
917-Front Audio Not
Connected
( µ
µ  
 µ)
 µ µ
  
  
  µ .
   
µ µ  
918-Front USB Not
Connected
( µ
µ 
USB  
µ)
 µ µ
 USB 
  
  µ .
   
µ µ  USB.
919-Multi-Bay Riser
not Connected
(  
Multibay  
µ)
   
   
  
µ.
    .
µ   µµ µ (")
/µ   µ 