Can't find the CMOS battery!!?!?

[kingtbone]

I can't find the CMOS battery on this motherboard! Could it possbily be integrated? I also can't figure out what type of board it is. It's an old pentium clone, and I see no where for an external battery. Any help appreciated.

[sennister]

This sounds interesting. Any way you can get some more info or a Picture?

[SB]

Look for a black thing with "Dallas" on it.

[Taco]

Look for a black block about 1 1/2" X 3/4". It will say Dallas on it. OR look for another black box about the size of a AA battery stuck or vecroed along the side of the case.

[Darren Wilson]

Don't forget the little blue or green Barrel type soldered batteries also.

[Star Fleet]

Hi shawnMt,

What do you do when you find Dallas.


Paul

[SB]

You look to see if it's soldered onto the mainboard or if it's in a slot. If it's in a slot - kinda like a BIOS chip then it can be easily replaced.

[AlienDyne]

Most of the times, it's not soldered.

If it is a barrel type and it's soldered, try to locate a 4-pin external battery connector, where you can connect an external battery.

[condor]

some CMOS batteries are integrated with the real time clock...

in some cases they are soldred to the board ( and they can come in different shape and sizes)

The best Idea is to try and find your mother board manufecturer and model - we might be able to help by locating a manual etc...

[IvanoPP]

some CMOS batteries are integrated with the real time clock...

in some cases they are soldred to the board ( and they can come in different shape and sizes)

The best Idea is to try and find your mother board manufecturer and model - we might be able to help by locating a manual etc...

Hi to all,

first sorry for my english language because I'm italian !

I need to change the CMOS BATTERY for 5TF0/F2/F5 Motherboard (82430HX/P54C PCI Mainboard - SOYO COMPUTER CO., LTD.) , but also I don't find it ...
In this case the CMOS batteries is integrated with the real time clock ?

May you help me ?

Thank you in advantage.

Ivano

[Platypus]

Welcome to WinDrivers Ivano. You are right about the CMOS battery, it's inside the Real Time Clock as shown here:

http://stason.org/TULARC/pc/motherbo...TF0-F2-F5.html

If you note the brand and type number shown on the top of it, there might be an equivalent still obtainable, but it's years since I've tried to find one.

If it's not in a socket, it would have to be unsoldered from the board. I once found a type you could dismantle and solder in a new lithium cell, but it wasn't easy to do, and most can't be opened.

[IvanoPP]

Welcome to WinDrivers Ivano. You are right about the CMOS battery, it's inside the Real Time Clock as shown here:

http://stason.org/TULARC/pc/motherbo...TF0-F2-F5.html

If you note the brand and type number shown on the top of it, there might be an equivalent still obtainable, but it's years since I've tried to find one.

If it's not in a socket, it would have to be unsoldered from the board. I once found a type you could dismantle and solder in a new lithium cell, but it wasn't easy to do, and most can't be opened.

Ciao,

thank you for the quickly answer (and for the interesting and useful link) !

On the top of the RTC component there is the label "ODIN OEC12C887A" , on the bottom the label "9635-A 07733.1".
The RCT component may be removed from the MB , baut can't be (appear...) opened.

In consideration that the MB it's old (1996) , what can I do ?
It's possibile to find and purchase a new RCT component within inside the cmos battery ? (and if yes , where ?)

Thank you again in advance.

Ivano

[IvanoPP]

On the top of the RTC component there is the label "ODIN OEC12C887A".
It's possibile to find and purchase a new RCT component within inside the cmos battery ? (and if yes , where ?)

Wow ! I've found it in http://www.amazon.com/dp/B0028BJSGQ/...SIN=B0028BJSGQ

Have you any other suggestions ?

Ciao,
Ivano

[Star Fleet]

G'Day Condor,

Thanks for the reply. Been through the sites but cannot find the Manual to the board. The MOBO has P55TP4 stamped on it. As I said I've been to Asus Site and quite a few others but they don't have this one.

Regards

Paul

[kingtbone]

I'm guessing it's integrated with the RTC. It's called a Houston Tech HT12888A Real Time. So how do I go about replacing this? It doesn't feel like it wants to come out. I'm surprised I got any replies with the lack of knowledge I provided, thanks everyone. I still can't find the external battery connector either. Anyone wanna guess about the location or maybe give an alternate form of what I'm looking for?