Computers & Laptops

[ana101]

Hi, I would like to buy memory cards to upgrade my laptop, which has windows 32-bit. However, the ones I found (Web Code: 10152543) are: A kit of two 256M x 64-bit 2GB DDR2-667 CL4 SDRAM memory modules. So, what is the 64-bit here? does it have to match

[XL]

What is your laptop make and model?  Can it take DDR2?

http://www.futureshop.ca/en-CA/product/kingston-technology-kingston-4gb-ddr2-667mhz-laptop-memory-kh...

[ana101]

It is a Toshiba Satellite A200-AH6 (PSAE0C-AH608C)

http://www.toshiba.ca/web/product.grp?lg=en&section=1&group=223&product=7031&part=6474

Processor
  
 •Intel® Core™ Duo processor T2450 (2.0GHz, 533MHz FSB, L1 Cache 32KB/32KB, L2 Cache 2MB)
 
Memory 
  
•Standard Memory: 2x512 MB DDR2 (667 MHz)
•Maximum Memory: 4GB DDR2
•Expansion Modules: 512MB, 1024MB or 2048 DDR2
 
Hard Disk Drive 
  
•160.0 billion bytes, 2.5mm height, S-ATA, 5400rpm.

Graphics Controller 
•Mobile Intel® 945GM Express Chipset with up to 256MB
•shared video memory
 
 
Expansion 
  
•2 memory slots - each slot has a 512MB. Zero free slots. Slots can be filled with 256MB, 512MB, 1GB, 2 GB modules
•1 Express Card Slot
•Ports: 5-in-1 Bridge Media Adaptor (SD Card, xD picture card, Memory Stick, Memory Stick Pro, Multi Media Card), 4 USB 2.0, RJ11, RJ45, IEEE1394, external microphone port, headphone port, RGB, S-Video Out
 

[ana101]

Hi,

Is anyone able to reply to my questions regarding the compatibility of the new RAMs?

FYI, the old RAMs are: 2x DDR2 Qimonda 512MB 2Rx16 PC2-5300S-555-12-A0

The new ones are "A kit of two 256M x 64-bit 2GB (2048MB) DDR2-667 CL4 SDRAM (Synchronous DRAM) memory modules, based on sixteen 128M x 8-bit DDR2 FBGA components (per module). Each pair has been tested to run at DDR2 667MHz at low latency timing of 4-4-4-12 at 1.8V"

(http://www.futureshop.ca/en-CA/product/kingston-technology-kingston-4gb-ddr2-667mhz-laptop-memory-kh...)

1) What does the "64-bit" mean in the description of the new RAMs? considering my system runs on 32-bit.

2) The latency of the originial RAMs are 5-5-5-12. The new RAMs have 4-4-4-12. Do I need to adjust the timing manually to make the new RAMs work more efficiently? If so, how to do it?

Thanks a lot for your answers!

[PowerPipes]

Hi Ana,

1 - Speaks to architecture.  Since 64 bit can operate at 32 bit (the reverse would not be true) the issue is moot for your purposes.

2 - Not in my epxerience. Everything should be handled automatically by the hardware and the bios.

Hope that helps