DELL 02T7WRA02 ユーザーズマニュアル

Alert! Previous attempts at booting this system 
have failed at checkpoint [nnnn]. For help 
in resolving this problem, please note this 
checkpoint and contact Dell Technical  
Support — The computer failed to complete 

the boot routine three consecutive times for the 

same error. Contact Dell (see “Contacting Dell” 

on page 74).
CMOS checksum error — Possible system 

board failure or RTC battery low. Replace the 

battery (see the Service Manual at  
support.dell.com/manuals) or contact Dell (see 

“Contacting Dell” on page 74).
Hard-disk drive failure — Possible hard 

drive failure during POST. Contact Dell (see 

“Contacting Dell” on page 74).
Keyboard failure — Keyboard failure or 

loose cable.
To replace the keyboard, see the Service 

Manual at support.dell.com/manuals.

No boot device available — No bootable 

partition on hard drive, the hard drive cable is 

loose, or no bootable device exists.

If the hard drive is your boot device, ensure 

•

that the cables are connected and that the 

drive is installed properly and partitioned as 

a boot device.
Enter system setup and ensure that the boot 

•

sequence information is correct (see the Dell 

Technology Guide on your hard drive or at 
support.dell.com/manuals).

CAUTION - Hard Drive SELF MONITORING 
SYSTEM has reported that a parameter has 
exceeded its normal operating range. Dell 
recommends that you back up your data 
regularly. A parameter out of range may 
or may not indicate a potential hard drive 
problem — S.M.A.R.T error, possible hard drive 

failure. Contact Dell (see “Contacting Dell” on 

page 74).