4-4
Sun Blade 100 Service Manual • October 2000
2. At the system
ok
prompt, type:
■
If the hard drive responds correctly to the
probe-ide
command, the message
shown in
CODE EXAMPLE 4-4
on page 4-8 is displayed, which means that the
system EIDE controller has successfully probed the device. This is an indication
that the motherboard is operating correctly.
■
If an optional hard drive is installed and one drive does not respond to the EIDE
controller probe but the other does, replace the unresponsive drive.
■
If the
probe-ide
test fails to show the device in the message, replace the drive
(see Section 7.3 “Hard Drives” on page 7-5). If replacing the hard drive does not
correct the problem, replace the motherboard.
4.4
Power Supply Test
This section describes how to test the power supply.
FIGURE B-1
on page B-1 and
TABLE B-1
on page B-2 describe power supply connector J501.
1. Power off the system, remove the system cover, and attach an antistatic wrist strap
as described in Chapter 5 “Preparing for Component Removal and Replacement.”
2. Disconnect the ribbon cables from the riser board to expose connector J501.
3. Defeat the power interlock.
4. Power on the system.
See Chapter 9 “Finishing Component Replacement.”
Caution –
With the system cover removed and the system powered on, there is
unprotected access to voltage and energy levels that are potentially hazardous to
equipment and personnel. If you are unsure how to safely proceed, please seek the
assistance of qualified service personnel.
5. Using a digital voltage meter (DVM), check the power supply output voltages as
follows:
Note –
Power supply connector J501 must remain connected to the riser board.
ok% reset-all
ok% probe-ide
Summary of Contents for Sun Blade 100
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Page 8: ...viii Sun Blade 100 Service Manual October 2000...
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Page 170: ...A 8 Sun Grover Service Manual October 2000...