If you go back and read OP's question, the manual answers it. That's was the only reason I suggested it.
It's not a great manual, but it must be read in context. The reader is expected to know that dual channel functions against *pairs* of modules. So obviously, with 3 modules, only 2 can be dual channel. An asterisk and footnote were left out. With some motherboards, all modules would drop to single channel when 3 are installed. "Something wrong with my logic above" I have to agree ... :-) Carl -----Original Message----- From: Windows Home/SOHO [mailto:[EMAIL PROTECTED] On Behalf Of Andy Medina Sent: Wednesday, May 24, 2006 10:48 PM To: [email protected] Subject: Re: Question about memory upgrade. On Wed, 24 May 2006, Carl Houseman wrote: > Finally, from the basic principle, we know that the 1GB > module will not have dual channel performance. If max > performance is the goal, he wants to buy two identical 1GB > modules. Jim suggested that maybe it might be possible to > treat 2 512's as one 1GB to dual-channel against the > additiona 1GB, but I find that *extremely* unlikely in a m/b > from Asus or any m/b at this price point (I'd be surprised to > see it in a m/b at any price point). The manual does say that three modules can operate in dual-channel mode. ASSuming the manual is correct, what is the combination that would give dual-channel mode? I knew B1 always had to be populated and matched with *either* A1 or A2 for dual-channel mode using 2 slots. But which is the so called third slot for 3 slot dual-channel mode operation, A1 or A2 (or even B1 for that matter)? ASSuming color coding, B1/A1 would be matched [B1/A1 are the same color], making A2 the so-called third slot. But we know the color coding rule has been broken by the B1/A2 combination. ASSuming the so-called third slot (whichever it is) can indeed still function in dual-channel mode (it says so in TFM), it would have to be 1Gb. All the above is still a hell of a lot of ASSuming ! Especially since TFM doesn't specify anything other than slot B1 has to be *populated* for dual-channel mode. There must be something wrong with the logic above if the "be surprised to see it in a m/b at any price point" is correct since TFM says dual-channel mode operation can be achieved using all **3** memory slots. TFM must be wrong. :) -- ---------------------------------------- The WIN-HOME mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html
