Actions 23
Symptom 24
Actions 24
Power Supply Test 24
MLB Test 26
Disk Drive Errors 27
Symptom 27
Action 27
Symptom 27
Action 27
Determining a Failed DSIMM 28
4. Preparing the System 29
Halting the System 29
Halting a System that is Hung 30
Tools Needed 31
Antistatic Surface 32
Disconnecting External SCSI Peripherals 32
Removing the System Unit Cover 32
Attaching the Wrist Strap 34
Replacing the Cover 36
5. Main Logic Board 39
Tools Needed 39
Preparing Your System 39
Removing an SBus Card 40
Removing an MBus Module 44
Disconnecting the Internal Cables 46
Removing the MLB 47
Preparing the MLB 49
v
SPARCstation 10 Service Manual ♦ Revision A, July 1993
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