Sun Microsystems Ultra 5, Service Manual

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5-4 Sun Ultra 5 Service Manual • February 2000
5.3.5 Lithium Battery
Caution –
On Sun motherboards, a lithium battery is molded into the real-time
clock, SDS No. M48T59Y, MK48TXXB-XX, M48T18-XXXPCZ, or M48T59W-XXXPCZ.
Batteries are not customer-replaceable parts. They may explode if mistreated. Do not
dispose of a battery in fire. Do not disassemble a battery or attempt to recharge it.
5.4 Tools Required
The following tools are required to service the Ultra 5 system.
■
No. 2 Phillips screwdriver (magnetized tip suggested)
■
Needle-nose pliers
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Grounding wrist strap
■
Digital voltage meter (DVM)
■
Antistatic mat
Place ESD-sensitive components such as the motherboard, circuit cards, hard drives,
and NVRAM/TOD on an antistatic mat. The following items can be used as an
antistatic mat:
■
Bag used to wrap a Sun replacement part
■
Shipping container used to package a Sun replacement part
■
Inner side (metal part) of the system cover
■
Sun ESD mat, part number 250-1088 (available through your Sun sales
representative)
■
Disposable ESD mat; shipped with replacement parts or optional system features