Deskpro XE466

[Guest]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

Got out a Deskpro XE466 that had been working perfectly only to find
that it now performs a memory check then stops and goes no further.
Could it be the CMOS battery and, if so, how do you change it? A lame
question I know but the battery appears to have a lug fitted to it that
connects to the motherboard and it's not obvious to me how to proceed.

Regards,

Alec

 

[Guest]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

tiv@hotmail.com wrote:
>
> Got out a Deskpro XE466 that had been working perfectly only to find
> that it now performs a memory check then stops and goes no further.
> Could it be the CMOS battery and, if so, how do you change it? A lame
> question I know but the battery appears to have a lug fitted to it that
> connects to the motherboard and it's not obvious to me how to proceed.
>

Now found it starts if left powered up for a while but it's dropped all
the settings so I guess the CMOS battery has gone. So the question is
how do you change it? It appears to be firmly attached to the
motherboard and not in a holder as is usual with these things.
Alternatively can i put a battery on the External CMOS/Clock Battery
connector and what kind?

Regards,

Alec

 

[hh]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

The replacement battery is a 4.5 volt alkaline battery. HP spare parts
should have it.
HH

<tiv@hotmail.com> wrote in message news:41B744CE.451B7322@hotmail.com...
>
>
> tiv@hotmail.com wrote:
>>
>> Got out a Deskpro XE466 that had been working perfectly only to find
>> that it now performs a memory check then stops and goes no further.
>> Could it be the CMOS battery and, if so, how do you change it? A lame
>> question I know but the battery appears to have a lug fitted to it that
>> connects to the motherboard and it's not obvious to me how to proceed.
>>
>
> Now found it starts if left powered up for a while but it's dropped all
> the settings so I guess the CMOS battery has gone. So the question is
> how do you change it? It appears to be firmly attached to the
> motherboard and not in a holder as is usual with these things.
> Alternatively can i put a battery on the External CMOS/Clock Battery
> connector and what kind?
>
> Regards,
>
> Alec

 

[Dave]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

Can the lug be rrmoved from the other side of board? if not what is the code
on the battery (Mine is CR2032 (a very standard battery)) if the lug is part
of the circuit you could just find where it connects to m/b and solder a
wire after destroying the lug.
<tiv@hotmail.com> wrote in message news:41B744CE.451B7322@hotmail.com...
>
>
> tiv@hotmail.com wrote:
>>
>> Got out a Deskpro XE466 that had been working perfectly only to find
>> that it now performs a memory check then stops and goes no further.
>> Could it be the CMOS battery and, if so, how do you change it? A lame
>> question I know but the battery appears to have a lug fitted to it that
>> connects to the motherboard and it's not obvious to me how to proceed.
>>
>
> Now found it starts if left powered up for a while but it's dropped all
> the settings so I guess the CMOS battery has gone. So the question is
> how do you change it? It appears to be firmly attached to the
> motherboard and not in a holder as is usual with these things.
> Alternatively can i put a battery on the External CMOS/Clock Battery
> connector and what kind?
>
> Regards,
>
> Alec

 

[Guest]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

Dave wrote:
>
> Can the lug be rrmoved from the other side of board? if not what is the code
> on the battery (Mine is CR2032 (a very standard battery)) if the lug is part
> of the circuit you could just find where it connects to m/b and solder a
> wire after destroying the lug.

The battery is a BR2335 and the lug appears to be attached to the top by
four tiny spot welds. When I get time I'll pull the logic board and have
a good look at the attachment. Tried pulling but all it does is to bend
the lug. Quite how the other pole of the battery contacts the board I
don't know, presumably the lug holds it in contact.

Regards,

Alec

 

[Guest]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

HH wrote:
>
> The replacement battery is a 4.5 volt alkaline battery. HP spare parts
> should have it.

Thanks, I'll follow that up.

Regards,

Alec

 

[Guest]

Archived from groups: alt.sys.pc-clone.compaq (More info?)

tiv@hotmail.com wrote:

>
> The battery is a BR2335 and the lug appears to be attached to the top by
> four tiny spot welds. When I get time I'll pull the logic board and have
> a good look at the attachment. Tried pulling but all it does is to bend
> the lug. Quite how the other pole of the battery contacts the board I
> don't know, presumably the lug holds it in contact.
>

Right, the motherboard is out and there are two lugs attached to the
battery, the one on the top and a smaller one underneath. The former has
two 'legs' and the latter one which pass through and are soldered to the
motherboard. As my soldering is not up to changing this I shall persue
the external battery route. It appears to be the commonly available
alkaline type with two wires attached terminating in a four way
connector with one way foolproofed to ensure correct polarity.

Thanks for all the help guys. I know the way forward now.

Regards,

Alec