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Dual Channel DDR? GA-7N-400_L

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  #1  
Old 05-04-2004
Steve B's Avatar
TechSpot Member
 
Location: Perth, Western Australia
Member since: Apr 2004, 107 posts
Dual Channel DDR? GA-7N-400_L

HI, My m.Board supports dual channel DDR, but the manual is a bit vague...

I understand that a complimentary card in channel B will double the bandwidth, but will this also double the RAM? or is this only if both are in channel A.

The way I picture it - and I may be way off - is the 2 slots of channel A, or B are connected in serial, whereas the channels THEMSELVES are parallel.

I hope that I explained that clearly???!!!???

Thanks in advance, STEVE.

" A little knowledge is a dangerous thing "
SOMEONE Famous???
  #2  
Old 05-05-2004
Arris's Avatar
TechSpot Evangelist
 
Location: Aberdeen, Scotland, UK
Member since: Feb 2002, 3,033 posts
Using 2 x 512mb sticks of ram in dual channel mode will increase the bandwidth but also still give you 1024mb of system ram.

I often explain that dual channel ram operation is a similar concept to RAID-0 with hard disks.

I found this explanation over at PCStats forum

Quote:
Dual channel memory works just like RAID on a HDD. Basically the two memory controllers stripe the data accross/between both sticks of RAM to allow faster access. Functionally in single channel memory the one memory controller just assigns address to the RAM and realistaically sees one 'chunk' of RAM being the sum of all the sticks. In dual channel each controller address its stick of RAM independently and allows each stick to be access simultaniously.
Hope this explains things
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  #3  
Old 05-05-2004
Steve B's Avatar
TechSpot Member
 
Location: Perth, Western Australia
Member since: Apr 2004, 107 posts
Arris, YOU DA MAN !!!

I've learnt more perusing this site than anywhere else... Magazines etc.

Top Site !!!
  #4  
Old 05-01-2005
BloodRaven's Avatar
TechSpot Member
 
Location: Chandler, AZ (USA)
Member since: Apr 2004, 112 posts
ok so i just got 2x512 dual channel ddr sticks. the thing is when i put them in my compter it only sees that there is 512 in there...shouldnt it say that there is 1024? do i have to install some dual channel software or something? please help.
  #5  
Old 04-05-2007
TechSpot Member
 
Member since: Apr 2005, 59 posts
Thanks for that
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