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Posted by HC on October 7, 2005, 7:06 pm
Please log in for more thread options Barry, thanks for that explanation! 512Mb had been OK for my needs (XP)
until recently when I had a big photo scanning project and kept getting
an 'Out of Memory' error message.
Thanks again....at least I've learned something new today.
Bronwyn ;-)
Barry Watzman wrote:
> There is no automatic benefit to having RAM modules in matching pairs
> except on systems using "dual channel" memory, where there either is a
> benefit (if the memory is not a matching pair it will operate in a
> single-channel mode) or it just won't work at all. The chipset
> determines if the memory is capable of dual channel operation, and it's
> a significant enough feature that it should be prominently listed if the
> laptop offers it. [Note that the 845 chipset used in the OP's computer
> does not offer dual channel memory]
>
> For most users, the benefit from going beyond 512 megs with XP is small.
> This does depend on both what programs you are running and how you use
> the computer, but for the typical user of desktop apps, by the time you
> get to 512 megs you have most of the benefits that larger memory can
> provide. For gaming, CAD and some other applications, however, or users
> who often open many apps at once, going above 512 megs may be worthwhile.
>
>
> HC wrote:
>
>>
>> G'day David
>>
>> From my understanding it's best to have RAM modules in matching
>> pairs......ie 2 x 512Mb (to equal 1024Mb). Someone with more
>> knowledge can correct me here?
>>
>> How many slots does your Toshie have?
>>
>> The upgrade will be worth the extra speed gained. Good luck ;-)
>>
>>
>>
>> david.cardoso@gmail.com wrote:
>>
>>> Hi,
>>>
>>> My notebook (toshiba satellite 1955-S803) specification states that the
>>> memory is expandable to 1024MB.
>>>
>>> I wonder if I could have only one single module of 1024MB instead of
>>> two modules of 512. How do I know whether there is a limitation per
>>> module?
>>>
>>> Today, I have two modules of 256. Now I want to upgrade to 1GB memory
>>> but I am not sure whether I can use a single module of 1024.
>>>
>>> What do you say?
>>>
>>> This is exactly what it says in the specification:
>>>
>>> Memory
>>> · 512MB SDRAM (Expandable to 1024MB)
>>> · Expansion memory: SODIMM, PC2100 DDR SDRAM, 2.5V
>>> · Data/Address Bus Width; 64-bit/32-bit
>>> · BIOS ROM: Intel FWH; 4Mbit
>>> · Intel 845 Chipset
>>>
>>> The specification also suggests the use of the following modules:
>>>
>>> Kingston Memory
>>> KTT3614/128 128MB PC2100 DDR SDRAM
>>> KTT3614/256 256MB PC2100 DDR SDRAM
>>> KTT3614/512 512MB PC2100 DDR SDRAM
>>>
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