GE HEALTHCARE
DIRECTION 5394141, REVISION 5 LOGIQ™ P5 SEVICE MANUAL
Section 7-5 - Common Diagnostics 7-11
7-5-2-2 Hard Drive Tests
• Hard Drive Test (All) - The Hard Drive test examines your hard disk drive using a series of tests
to ensure that your drive can perform its functions.
The following tests are performed on your hard drive to ensure the hard disk controller and the drive
mechanism are working correctly. The disk surface itself is also checked.
NOTE: The hard drive test can take over ten minutes.
• Hard Drive: Linear Seek - Hard disk drive heads are moved from track 0 to the maximum track one
track at a time.
•
Hard Drive: Random Seek - Hard disk drive heads are moved randomly several hundred times.
•
Hard Drive: Funnel Seek - Hard disk drive heads are moved in a funnel fashion, i.e., from the first
track on the drive to the last, then to the second track, then to the second to last track, then to the
third track, and so on.
•
Hard Drive: Surface Scan - This test scans for surface defects on the hard disk drive.
7-5-2-3 Memory Tests
• Memory Test (All) - Eighteen test patterns are used to test memory locations. If errors are
detected, the address of the block the error was detected in is shown. During testing, these
diagnostics will also look out for parity errors and other exceptions. These will be added to the Test
Log as errors if encountered.
•
Memory: Pattern Test - PC-Doctor uses several test patterns to test as much memory as possible.
•
Memory: Parity Test - This test checks for parity errors on the memory bus during intensive string
transfer operations. If an error is detected, the address of the failed block is displayed.
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