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Replacing the CMOS battery - Dell T5820
Removal and installation instructions for replacing the CMOS battery in the host computer.

Replacements
- System
  - Coolant draining
  - Hoist Service Kit and Lifting Accessories
  - Power, Gradient, and RF (PGR) Cabinet
  - Penetration (PEN) Cabinet
  - Heat Exchange Cabinet
  - Global Operator Console (GOC)
    - Checking the GOC battery replacement
      Check the battery replacement sticker on the GOC.
    - HP 8400 Ethernet Switch Replacement
    - HP 8400 Computer Replacement
    - Dell T5810 Computer Replacement
    - Dell T5810 Lower Level FRU Replacement
    - GOC Audio Assembly Replacement - New GOC
    - GOC Power Distribution Supply Replacement
    - Keyboard, Mouse, and SCIM Replacement or Installation
    - HP 8400 Lower Level FRU Replacement
    - HP Z400 Computer Replacement
    - HP Z400 Ethernet Switch Replacement
    - HP Z400 Lower Level FRU Replacement
    - HP Z420 Computer Replacement
    - HP Z420 Lower Level FRU Replacement
    - Replacing the host computer - Dell T5820
      Removal and installation instructions to replace the host computer when upgrading the system.
    - Replacing the CMOS battery - Dell T5820
      Removal and installation instructions for replacing the CMOS battery in the host computer.
      - Electrical Safety
        You must follow all recommended safety procedures when servicing and working near energy sources.
      - Preparing the workstation for a computer replacement
        Prepare the workstation so all data is saved prior to shutting down and replacing the host computer in the GOC.
      - Shutting down the host computer
        Shutting down the host computer shuts down the system safely and turns off the power to the host computer.
      - Removing the CMOS battery - Dell T5820
        Remove the CMOS battery from the host computer.
      - Installing the CMOS battery - Dell T5820
      - Setting up the BIOS - Dell T5810/T5820
      - Starting up the host computer
        How to start the host computer.
      - Finalizing CMOS battery replacement - Dell T5820
        Finalize the CMOS battery replacement.
    - Replacing the DVD drive - Dell T5820
      Removal and installation instructions for replacing the DVD drive in the host computer.
    - Replacing the GOC hard drive - Dell T5820
      Removal and installation instructions for replacing the solid state drive (SSD) in the host computer.
    - ***
      Set up and calibrate the monitor for your system.
    - In-Room Display Fiber Optic Converter Box Replacement
    - LCD Monitor Installation
- Gradient
- RF
- Coils
- Magnet Enclosure
- Patient Table
- Spectroscopy

Discovery MR750 3.0T System Service Methods
5690009-2EN Revision 4
Object ID: 00000018WIA308D4840GYZ
Topic ID: id_2014923 Version: 4.1
Date: Jul 12, 2021 1:03:12 PM

Replacing the CMOS battery - Dell T5820

Prerequisites

The following tables represent a comprehensive roll-up of the tools, test equipment, consumables, and replacement parts you need to complete all possible tasks in this procedure.


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	60 minutes	10 minutes


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Screwdriver	1	-	-
Nonmagnetic Titanium Service Tool Kit, Small Set (can be used on magnets with magnetic fields > 1.5T)	1	5113258	-
ESD Mat	1	-	-
ESD Strap	1	-	-
DQA III Phantom	1	2321556	-
DQA Phantom Positioner	1	5554497	-


Consumables
Item	Quantity	Part number	Manufacturer
GE Equipment Maintenance Sticker	1	5661793	-


Replacement parts
Item	Quantity	Part number	Manufacturer
Dust Filter	1 (if needed)	5192248-5	-
Adhesive-Backed Velcro, 2 x 4 inches	2 (if needed)	46-317475P2	-
Host PC CMOS Battery, 3V, CR2032	1	5129534-3	-


Required conditions
Use an antistatic wrist strap and mat while performing this procedure to prevent electrostatic discharge (ESD). Access to both the front and rear of the operator console is required. Move the console away from walls and remove obstacles in the room.


Safety
Before working in any GE Healthcare MR suite or performing any GE Healthcare service procedure, you must: Have read and understood all hazard conditions and safety requirements in the latest revision of the GE Healthcare MR Service Safety Manual (5452735). Have successfully completed all relevant GE Healthcare Environmental Health and Safety (EHS) courses (or for non-GE employees, equivalent workplace training courses). Comply with all site-specific training and workplace safety requirements. If you have any safety concerns at any time, do not begin work or immediately stop work and move to a safe location. Immediately contact your supervisor or site safety officer for instructions on how to proceed.