PE3M Small Form Factor PC
Maintenance
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MAINTENANCE
On a regular basis the inside of the PE3M unit should be cleaned out to prevent dust build up which could
eventually clog the fans and prevent efficient operation. Generally the enclosure design and the wiring layout
will ensure that the cooling is stable. However, bear in mind that any modifications to the installation may cause
a restriction of the air vents.
After a period of several years, it may be necessary to replace the battery on the processor board, if it cannot
maintain the CMOS memory whilst the AC power is disconnected.
Replacing the Processor Battery
The processor board includes a small 3V lithium battery (type CR-2032) to retain the BIOS settings in the
CMOS memory. Before attempting to replace the battery, please read the precautions detailed in the
introductory section. Remember that even discharged batteries can present a real personnel hazard if
mistreated.
CAUTION
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 instruction.
ATTENTION
Il y a danger d'explosion s'il y a remplacement incorrect de la batterie.
Remplacer uniquement avec une batterie du même type ou d'un type
recommandé par le constructeur.
Mettre au rébut les batteries usagées conformément aus instructions du
fabricant.
The battery is located on the motherboard adjacent to the AGP (brown) socket, underneath the hard disk
drive mounting plate.
Remove the hard drive assembly as follows:
Remove two screws from the rear top face of the chassis.
Lift the rear end of the hard drive bracket a little, and slide the bracket towards the rear to disengage the
two tabs at the front end.
Lift the drive assembly and disconnect the hard drive power lead connector.
Remove the hard drive UDMA ribbon cable from the Primary IDE connector (IDE1, blue) on the
motherboard.
Lift the hard drive assembly clear.
Disconnect the CD/DVD ribbon cable from the Secondary IDE connector on the motherboard (IDE2).
The battery is mounted vertically in the holder held in place by the clip in the top.
Do NOT under any circumstances try to remove the battery with metallic tools (pliers, tweezers etc.).
They will short out the battery with possible disastrous results.