Lombard DIMMs

Martin Schneider wrote:

> Are these http://www2.computeruniverse.net/info.asp?id=90146153 DIMMs
> the right ones for a Lombard G3 Powerbook?

Possibly. It is hard to tell without full specifications including
physical dimensions.

In order to work in a Lombard, it must meet the following requirements:

1. It must implement the "serial presence detect" EEPROM and it must be
correctly programmed to tell the computer the speed and size of the
DIMM.

2. The SPD EEPROM must be programmed with a profile which defines how
the DIMM will operate when running with a 100 MHz bus. Some PC133 DIMMs
omit this information so they won't work in older model Macs.

3. To physically fit in a Lombard, the DIMM must be no more than 2
inches tall for the top slot, or 1.5 inches for the bottom slot.

There are several other technical requirements that the DIMMs must meet,
such as buffering and speed issues depending on the number of SDRAM
chips on the DIMM.

In general, the safest bet is to order from a company who can supply
memory which is guaranteed to work in your model, based on a mechanism
for specifying which model you have. http://www.crucial.com and
http://www.macsales.com are two such suppliers.

--
David Empson
dempson.TakeThisOut@actrix.gen.nz
 >> Stay informed about: Lombard DIMMs 

David Empson schrieb:
> Martin Schneider wrote:
>
>> Are these http://www2.computeruniverse.net/info.asp?id=90146153 DIMMs
>> the right ones for a Lombard G3 Powerbook?
>
> Possibly. It is hard to tell without full specifications including
> physical dimensions.

Hi!

Thanks to both of you for the quick answers. Unfortunately, we're a
little far from the US to order a RAM module.

I think I'll just order with 14 days return offer and just try :-)

Best regards,
Martin
 >> Stay informed about: Lombard DIMMs 

In article , Martin Schneider
wrote:

> Hi!
>
> Are these http://www2.computeruniverse.net/info.asp?id=90146153 DIMMs
> the right ones for a Lombard G3 Powerbook?
>
> Thanks - im totally new to the Mac world. My first Mac :-)))
>
> Best regards,
> Martin

According to Mactracker, you can use 2 - PC66 3.3.V 144-pin SO-DIMM,
each 256 mb for a total of 512 mb. The lower slot can take only 1.25
inch tall. For example:

<http://eshop.macsales.com/item/Other%20World%20Computing/100SO256168L/>

Enjoy!
Dan
 >> Stay informed about: Lombard DIMMs