Replacing units on an NVRAM adapter

About this section

This section provides information about the following procedures:

"Replacing NVRAM SIMMs"
"Replacing NVRAM lithium batteries"

You must prepare the NVRAM adapter before installing it in the filer. Preparations include adding memory or replacing batteries on the NVRAM adapter before installing it in the filer.

Note
The NVRAM adapter in the NetApp F700 series is different than the NVRAM adapter in other models of NetApp filers. You cannot interchange them with NVRAM adapters from other models of NetApp filers.

Replacing NVRAM SIMMs

F700 NVRAM configurations

Replacing the NVRAM SIMMs consists of the following two procedures.

Removing NVRAM SIMMs
Installing NVRAM SIMMs

The NetApp F700 series filers have the following NVRAM configurations.

Filer	NVRAM configuration
F720	Bank 0 occupied by two 4-MB NVRAM SIMMs, for 8 MB of NVRAM.
F740 and F760	Banks 0, 1, 2, and 3 occupied by eight 4-MB NVRAM SIMMs, for 32 MB of NVRAM.

NVRAM SIMM slots

The following figure shows the location of the NVRAM SIMM slots.

Removing NVRAM SIMMs

To remove the NVRAM SIMMs, complete the following steps.

Step	Action
1	Starting with the first occupied SIMM slot closest to the bottom edge of the adapter, press and hold down the mounting tabs with your thumbs while raising the SIMM with your index fingers.
2	Place the SIMMs you removed in an antistatic bag.

Installing NVRAM SIMMs

To install the NVRAM SIMMs, complete the following steps.

Step	Action
1	Hold the SIMM at the top corners to avoid damaging the components or the edge connector and turn the SIMM so that its locator notch is toward the lithium batteries.
2	Starting with the first unoccupied slot closest to the top edge of the NVRAM adapter, align the SIMM over the slot and then tilt the top edge of the SIMM at a slight angle toward the top edge of the NVRAM adapter.
3	Insert the SIMM at an angle into the slot. The SIMM should slide into the slot easily if you wiggle the SIMM into position. If not, realign the SIMM with the slot and try again.
4	Push downward on the top edge of the SIMM until the mounting tabs close over the SIMM to lock it in place. Caution Visually inspect the SIMM to verify that it is evenly aligned and fully inserted into the slot; otherwise, the SIMM could bend or break when pushed to the locked position.
5	Go to Installing an expansion adapter to install the NVRAM adapter.

Replacing NVRAM lithium batteries

NVRAM lithium batteries

The NVRAM adapter has two lithium batteries. Replacing the NVRAM lithium batteries consists of the following two procedures.

Removing the NVRAM lithium batteries
Installing the NVRAM lithium batteries
Caution
The lithium batteries on the NVRAM adapter differ from the lithium battery on the motherboard. You cannot interchange the batteries for the NVRAM adapter and the motherboard.

Battery locations:

The following figure shows the battery locations.

To protect data integrity during a power failure, replace both lithium batteries when the filer indicates that the batteries are low.

Removing the NVRAM lithium batteries

To remove the NVRAM lithium batteries, complete the following steps.

Step	Action
1	Lift up the lithium battery while pushing the battery toward the open side of the battery holder. You can insert a nonconducting tool, such as a credit card, to help lift the battery. Caution Do not bend the metal clip because this can damage the connection between the battery and the NVRAM adapter.

Step

Action

Lift up the lithium battery while pushing the battery toward the open side of the battery holder.

You can insert a nonconducting tool, such as a credit card, to help lift the battery.

Caution
Do not bend the metal clip because this can damage the connection between the battery and the NVRAM adapter.

Installing the NVRAM lithium batteries

To install the NVRAM lithium batteries, complete the following steps.

WARNING
Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.

AVERTISSEMENT
Il y a danger d'explosion s'il y a remplacement incorrect de la pile.

Remplacer la pile seulment avec une pile du même type ou d'un type équivalent recommandé par le fabricant. Mettre au rebut les piles usagées selon les instructions du fabricant.

ACHTUNG
Explosionsgefahr bei unsachgemäßem Austausch der Batterie.

Die batterien nur durch denselben oder einen vom Hersteller empfohlenen gleichwertigen Typ ersetzen. Gebrauchter Batterien nach Angaben des Herstellers loswerden.

Step	Action
1	Turn the battery so that the positive side is up (marked with a "+").
2	Push the battery under the metal clip through the open side of the battery holder so that the battery sits flush inside the battery holder.
3	Go to Installing an expansion adapter to install the NVRAM adapter.