In article <B86130E3.135%nospam@nospam.com>, MacMan <nospam@nospam.com>
wrote:
> Tyder det ikke på at det er batteriet?
Jo.
> Er det i så fald ikke lidt underligt at det allerede er løbet tør?
Jo.
> OG, kan man selv skifte det,
Ja, det sidder på bundkortet lige ved portene til USB osv.
> og hvad koster det?
100-150kr.
Jeg vil i øvrigt lige tillade mig at citere lidt fra en unavngiven kilde:
Logic Board Battery
Important: Apple highly recommends removing the battery when
handling the logic board. Make sure to use proper ESD protection
when handling modules.
The battery on the logic board controls the stored system settings,
such as date and time. It is only necessary to test the battery when
you can¹t power on the computer, or the date and time are reset
every time the AC power is removed.
The battery is also used to power the PMU chip (because the PMU
chip keeps time and must always be running) when the computer
is unplugged from the wall (AC power). The PMU is very sensitive
and touching any circuitry that is connected to the PMU can cause
it to crash. If the PMU crashes, the battery life goes from about
five years to about two days if the PMU is not reset. Once the bat-tery
goes dead, the PMU will reset the time and date to 12:00 AM
1/1/04 every time the AC power is removed. To fix this situa-tion,
replace the battery and reset the PMU (refer to ³Resetting
the PMU on the Logic Board² mentioned earlier in this chapter).
If the computer has a ³No Power² situation, check the battery
before replacing modules. When checking the battery, make sure
the computer is unplugged. Measure the voltage across the bat-tery¹s
BT1 positive and ground terminals. The battery should read
3.3 volts to 3.7 volts. If it¹s lower than 3.2 volts, replace the
battery and reset the PMU chip.
--
MVH Martin Edlich
http://www.edlich.dk
Henvendelser til min e-mail adresse vil blive betragtet som et ønske
om at betale for support, hvilket takseres med 800 kr/time.
(medmindre jeg selv er ude om det, og det er Off Topic).