[Olpc-za] Fix clock problem

[Evert Groenewald]

Op 29/11/2010 11:09, het Josh-lin Schereka geskryf:
> Where can one but these olpc's and are they as great as the claim to be???
>
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> -----Original Message-----
> From: olpc-za-bounces at lists.laptop.org
> [mailto:olpc-za-bounces at lists.laptop.org] On Behalf Of Henk Boshoff
> Sent: 29 November 2010 11:02
> To: OLPC South Africa Interest Group
> Subject: Re: [Olpc-za] Fix clock problem
>
> Hi,
>
> I'm impressed by the size of the battery....
>
> The only piece of information I can give you is that it might be due to
> the Nokia built in security. Nokia usually has some proprietory stuff
> built into their cables, to prevent people from using standard cables on
> their phones. I suggest building up a cable from scratch. It is fairly
> easy to do, and would cost about R10.  If as much. You could source the
> components at any electronics shop... (Maybe a bit difficult in
> Saldanha, but try TV and Computer repair shops).  You could also buy
> general components from the following companies, and I'm sure they would
> be able to ship to you. (Depending on how much you are willing to pay
> for shipping I suppose). The connector part numbers for serial ports are
> usually called DB9 male and female.
>
> http://za.rs-online.com/web/    -->  RS Components
> http://www.communica.co.za/   -->  Communica, (Their webpage is currently
> down, but should go up again soon)
>
> I hope the information help you. If not ... mabye next time.
>
> Greetings
> Henk
>
>
> On 2010/11/28 09:09 PM, Evert Groenewald wrote:
>> Op 28/11/2010 20:04, het Henk Boshoff geskryf:
>>> On 2010/11/28 07:11 PM, Evert Groenewald wrote:
>>>> "RTC chip lost
>>>> power"http://wiki.laptop.org/go/Fix_clock  problem. I've tried without
>>>> much success to fix the problem.
>>> Hi Evert,
>>>
>>> By the sounds of it your Real Time Clock (RTC) chip does not work. (It
>>> is the chip that keeps time and some bios data for the computer, even
>>> when swithced off) My most obvious thought would be that the RTC clock
>>> battery needs replacement. I'm not 100% sure about architecture, and
>>> whether a dead battery would halt operation (Usually it wouldn't), but
>>> the battery is about the size of a R2 coin on the main board.
>>>
>>> Where are you based? Maybe you could pop in so that I can check your
>>> serial cable for you.
>>>
>>>
>>> Regards
>>> Henk Boshoff.
>>>
>>>
>>>
>> Hi Henk
>> Sorry in hindsight I should have been clearer as to what I have tried
>> before posting. I've changed the c-mos battery ( it is actually the size
>> of the old 1/2 (half) cent piece);-) . I then tried to get hold of a
>> serial adapter without success. So I then got the Nokia cable - as it
>> have a built in serial adapter- , unfortunately I don't have the tools
>> or knowledge to adapt the cable so I asked a friend to do it. Tonight I
>> tried it without success.
>> I live in the Saldanha area, which is a bit out of the way:-[ .
>>
>> evert
>> _______________________________________________
>> Olpc-za mailing list
>> Olpc-za at lists.laptop.org
>> http://lists.laptop.org/listinfo/olpc-za
>>
>
Hallo Josh-lin
The only place I currently am aware of, where you can buy a OLPC is on 
Ebay, in most cases they are second hand. I do not know of any 
place/agent/company that sells new OLPC's to the public.
What would you define as "great"?. This computer has a 450mhz 
processor,250mb ram and 1GB nand flash as main storage. Ok, it has built 
in wireless, a webcam, 3 usb ports, screen is sunlight readable, and 
battery time is 2 - 2.5 hours. The keyboard has been designed with kids 
in mind so adults tend to struggle on it. It is very well constructed - 
easy to take apart and put together again - is somewhat spillproof and 
can survive abuse that would permantly retire any other laptop save a  
"Toughbook".
Great would depend on what you want to do with it.
For me it is small, light, tough, with a sunlight readable screen and 
bright colours, and it works great. Oh yes, I can charge it from almost 
any 12v powersource.
For me that is great.
Opinions, taste, views, usage etc all differ.

evert