ABit AB-PT5 CMOS battery? \ VOGONS

ABit AB-PT5 CMOS battery?

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First post, by cprieto

Posted on 2021-04-07, 14:20

cprieto Offline

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Posts: 41
Joined: 2020-04-20, 15:05
Location: Germany

I got a ABit AB-PT5 rev 2.11 mobo a few months ago but now I am getting the dreaded error (at boot time):

CMOS checksum error - Defaults loaded
CMOS battery failed

Ok, I get it, the battery is dead but where is the battery? I cannot find anything like a battery in the mobo to replace 😐

Reading the win3x page (http://www.win3x.org/uh19/motherboard/show/118) it says

DALLAS RTC may be flat

in one of the probable problems, is that what I have to replace?

Thanks for any help pals!

Reply 1 of 2, by weedeewee

Posted on 2021-04-07, 14:29

weedeewee Offline

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Location: Belgium

You might want to look into this
https://www.google.com/search?q=Dallas+RTC+mod

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Reply 2 of 2, by mpe

Posted on 2021-04-07, 15:41

mpe Offline

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Joined: 2018-06-12, 21:19
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cprieto wrote on 2021-04-07, 14:20:
I got a ABit AB-PT5 rev 2.11 mobo a few months ago but now I am getting the dreaded error (at boot time): […]
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I got a ABit AB-PT5 rev 2.11 mobo a few months ago but now I am getting the dreaded error (at boot time):

CMOS checksum error - Defaults loaded
CMOS battery failed

Ok, I get it, the battery is dead but where is the battery? I cannot find anything like a battery in the mobo to replace 😐

The battery is inside the black "ODIN" module. It cannot be replaced, you need to replace the module (or mod it).

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