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Topic # 29602 13-Jan-2009 09:54
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Wanting to help a friend put more RAM in his desktop. Looking at the current RAM (IBM desktop) it's DDR400 PC3300 SDRAM. This is a P4.  Looking at a couple of local sites I came across two types with nearly $30 difference in price

RAM One

RAM Two

One would think Kingston RAM would be "better" but I am not sure what unbuffered RAM means. Any thoughts on this?

Thanks

Larry




System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen. Harman Kardon HK AVR 254 7.1 receiver, Samsung 4K player, Google Chromecast

 


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  Reply # 189148 13-Jan-2009 10:21
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Unbuffered RAM:
There is no control between the chipset and the memory chips, meaning that data can be given to the chips at any time, even in the middle of a clock cycle.  Used in desktops, max 4 ram slots (usually), cheaper.

Buffered RAM:
Provides a delay (buffering) so that all data from the chipset is collecting at the beginning/end of a clock cycle.  Used in servers, usually slower (because of ECC), over 4 ram slots, expensive.

You can't mix buffered and unbuffered, just get unbuffered for a desktop machine (assuming the existing ram is regular unbuffered ram).

From your links, I would say the Adata is unbuffered also, the Kingston is more expensive because it's a top tier brand with a lifetime warranty.



4942 posts

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  Reply # 189190 13-Jan-2009 13:06
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Thanks. That makes sense. What confused me was for a while the Kingston memory was listed for $10 on Pricespy and when you went to the page it still showed $10. That is why I was confused why Kingston, a name brand was so cheap. They have fixed that now :(




System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR and Plex Server running on Gigabyte Brix (Windows 10 Pro), Sony BDP-S390 BD player, Pioneer AVR, Raspberry Pi running Kodi and Plex, Panasonic 60" 3D plasma, Google Chromecast

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen. Harman Kardon HK AVR 254 7.1 receiver, Samsung 4K player, Google Chromecast

 


My Google+ page 

 

 

 

https://plus.google.com/+laurencechiu

 

 


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