Security Lock Block Installation; Power Supply Memory Latch Function; Illustrated Parts Breakdown - Sun Microsystems Enterprise 250 Product Notes

Security Lock Block Installation

If you have difficulty installing the security lock block, it is likely that the screw
holes are misaligned. This sometimes happens when the side access cover is
removed and reinstalled incorrectly. To realign the screw holes, remove and reinstall
the side access panel. Push the access panel against the chassis until the screw holes
for the lock block are properly aligned. Then tighten the two captive screws at the
rear of the chassis to secure the panel in place.
For more information, see the following sections in the Sun Enterprise 250 Server
Owner's Guide:
"How to Remove the Side Access Panel"
"How to Install the Side Access Panel"
"How to Install the Security Lock Block"

Power Supply Memory Latch Function

The Sun Enterprise 250 power supply has a memory latch function that allows the
power supply to "remember" its last power on/off state in response to a power
outage or removal of the AC power cord. This feature allows the power supply to
resume operation automatically once power is restored. It also enables hot-swapping
of power supplies.
Under some circumstances, this feature can be misdiagnosed as a power supply
failure. If you remove a power supply from a system that is powered off and attempt
a hot-plug installation into a system that is powered on, the power supply will
remain in the Off state. This should not be interpreted as a power supply failure.
To activate the power supply, simply turn the front panel keyswitch from the
Power-On position to the Diagnostics position, and then back to the Power-On
position. Alternatively, you may press the Power-On key on a Sun Type-5 keyboard
attached to the system.

Illustrated Parts Breakdown

The following information is an addition to the table in the Sun Enterprise 250 Server
Owner's Guide.
Sun Enterprise 250 Server Product Notes 9