Sun Ultra 20 Workstation
 

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In this Document
  Goal
  Solution

Applies to:

Goal

Solution

DISPATCH INSTRUCTIONS
- WHAT SKILLS DOES THE ENGINEER NEED:
- TIME ESTIMATE: 10 minutes
- TASK COMPLEXITY: 0

FIELD ENGINEER INSTRUCTIONS:
- PROBLEM OVERVIEW: Replacing or Adding DIMMs, determine which DIMM modules are not functioning properly so that they can be replaced.

- WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE
RESOLUTION ACTIVITY?:
- WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

Replacing
1. Turn off the power button on the back panel and all of the peripherals connected to the workstation.
2. Remove the left-side access panel.
3. Gently lay the system on its right side on a stable, nonslip surface.
4. Identify the location from which you will remove a DIMM.
5. Place your forefingers on the top of the DIMM.
6. Remove the DIMM by pressing down on the ejector bars at both ends of the DIMM socket
7. Set the DIMM aside on an antistatic mat.
8. Install a new DIMM as shown in Section 4.5.4.3, Installing a DIMM.

Install
When you install a DIMM in the workstation, keep the following guidelines in mind:
* Memory modules must be installed and removed in pairs, observing sequential slot positions.
* Populate DIMM sockets 1 and 2 first, followed by sockets 3 and 4.
Note - An exception to this guideline is when a DIMM module fails and becomes replaced with a unit shipped from Sun Microsystems. In that case, the DIMM modules may be replaced individually.

1. Turn off the power button on the back panel and all of the peripherals connected to the workstation.
2. Remove the left-side access panel.
3. Gently lay the system on its right side on a stable, nonslip surface.
4. Identify the DIMM slots.
5. Align the DIMM with the proper slot.
6. Insert the DIMM into the slot.
7. Repeat Step 4 through Step 6 for each DIMM that you want to replace.
8. Replace the left-side access panel.

Using both thumbs, press the DIMM straight down into the DIMM slot until both ejector levers click, locking the DIMM in the DIMM slot.
* The DIMMs must be inserted evenly, straight down along the DIMM slot until they are locked into place.
* The DIMM is seated when you hear a click and the DIMM ejector levers are in the vertical position.

OBTAIN CUSTOMER ACCEPTANCE
- WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO
AN OPERATIONAL STATE:

PARTS NOTE:
https://support.oracle.com/handbook_private/Systems/Ultra20/components.html

REFERENCE INFORMATION:

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