Can 3GB memory enable dual channel

[zbinho]

My MB is P5B,has 4 DIMM,and I already have 2×512MB.If I add 1GB to each channel,can it work on dual channels?

 

[kypron7]

I have 4x1gb, and it is in dual channel, though it shows 2.93 gb in windows xp pro. Benchmarking it shows that the 4x1gb is as fast as 2x1gb too.

 

[AVP]

to the last poster - wtf?
Anyways, yeah it should zbinho, from what I have heard...

 

[GuitarDaddy]

Originally posted by: zbinho
My MB is P5B,has 4 DIMM,and I already have 2×512MB.If I add 1GB to each channel,can it work on dual channels?

Yes, if you put 1.5gb in each channel

 

[Maiora]

Yes and that's the config to use if your os is 32 bit. Two 512MB sticks and two 1GB sticks = 3GB and dual channel. 🙂

 

[GuitarDaddy]

Originally posted by: AVP
to the last poster - wtf?
Anyways, yeah it should zbinho, from what I have heard...

He is correct 32bit Window XP and Vista can only access a maximum of 2.9-3.25 gb of ram depending on resource allocations. You need the x64 versions of the OS's to fully utilize anything over 3gb.

 

[AVP]

yeah but his reply had nothing to do with the question heh

 

[0roo0roo]

Originally posted by: kypron7
I have 4x1gb, and it is in dual channel, though it shows 2.93 gb in windows xp pro. Benchmarking it shows that the 4x1gb is as fast as 2x1gb too.

not running 64bit?

 

[Brainonska511]

Yes, provided the A channel is one set of matching RAM and the B channel is another set of matching RAM (A and B can be different amounts of RAM).

 

[Lonyo]

Yes you can. You can also run different numbers of sticks in each channel and still maintain dual channel if they have the same capacity (i.e. 1GB stick in one channel and 2x512MB in the other)
You can also run half dual channel with mixed capacities, i.e. 1x1024MB in one slot, and 1x512MB in the other slot, and have 1024MB working in dual channel, and 512MB in single channel (http://support.intel.com/support/motherboards/desktop/sb/CS-011965.htm#flex)