02-21-2005 12:16 AM - last edited on 04-07-2013 06:20 PM by Cathy_xu
The system clock on my B1000 systems stops when the machine is off. This usually means an empty battery. But where is it? My manuals do not mention its location.
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02-21-2005 08:16 PM
you can find the infos in the 'Service Handbook' page 150.
The handbook you can find here:
General infos you also can find here:
02-21-2005 11:44 PM
02-23-2005 10:42 AM
There is absolutely nothing sourcing your battery from wherever you like.. provide it is the right kind!
You just have to be careful to ground yourself properly when working around the systenm board, to avoid static damage!
02-23-2005 10:44 AM
02-26-2005 04:00 AM
I opened my machine and located the clock, following the manual. It is located in a place that you can only reach if you have unusually long, slender fingers (like E.T.). When you pull out the clock chip, you are almost bound to bend the pins, and when you reinsert it, you are likely to break at least one. The clock chip has no replaceable battery; it is a rather specialized thing that you cannot buy at standard computer shops.
To cap things off: The B1000, if switched off, has an idle power consumption of 11 W, probably for keeping the LAN card hot for the power-on-LAN function (something that I do not use, which probably in snot even supported with this machine, but which I cannot disable). Of these wasted 11 W nothing is used for the system clock!
If there is ever a award for incompetent motherboard design, HP should win it for the B1000/C3000!
02-26-2005 11:01 AM
I know the sort, were used quite extensively some years ago.. Dallas chip I believe. I have replaced them before, and they are not as delicate as you might think!.. Sure, you have to prise it out , preferably with a chip extractor tool, which you can get.. or if you can gain access around the base, use a thin bladed screw driver. Replacement likewise, needs you to make sure the pins are dead straight on the holes.. use a torch to help you... and gently push it in slightly from on e end then straighten it by pushing on the other end etc, until it is fully in... So don't lose heart!
a couple of possibly relevant sites ..