Upgrading Memory 55
Replacing a Power-Supply Cord
To replace the AC power cord for a redundant power supply, perform the following
steps:
1. Locate a replacement power cord with the type of plug appropriate for your
geographical location.
2. Attach an ESD grounding strap to your bare wrist, and connect the strap to the
ESD point on the chassis or to an outside ESD point if the device is
disconnected from earth ground.
3. Unplug the power cord from the power-source receptacle.
4. Unplug the power cord from the appliance inlet on the power-supply faceplate.
5. Insert the appliance-coupler end of the replacement power cord into the
appliance inlet on the power-supply faceplate.
6. Insert the power-cord plug into an AC power-source receptacle.
7. Verify that the power cord does not block access to device components or
drape where people might trip on it.
Upgrading Memory
You can upgrade a device that has a single 256 MB single in-line memory module
(SIMM) dynamic random access memory (DRAM) module to two 512 MB modules
(1GB of memory).
To upgrade the memory on a device, perform the following steps:
1. Attach an ESD grounding strap to your bare wrist, and connect the strap to the
ESD point on the chassis or to an outside ESD point if the device is
disconnected from earth ground.
2. Press and release the power button to power off the device. Verify that the
POWER LED blinks and then turns off.
NOTE: Each power supply must be connected to a dedicated AC power feed.
NOTE: The device must have 1GB of memory installed to run ScreenOS content security
features:
Web filtering
Antivirus
Anti-spam
Intrusion protection system (deep inspection)
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