If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Dual Channel Memory Qusestion
Hi, I have an Asus A7N8X Deluxe MB with 3 DIMM slots.
The manual says I scan use all three slots in dual channel mode. Huh? What confuses me is the term "dual channel." With three DIMMs??? Logically one would think this would be called tri-channel. Forgive my lack of knowledge on this subject. But I want to upgrade the memory for this motherboard, and I need to know how many DIMMs to buy for "dual channel" operation. Seeing as they are sold in pairs, and even called "dual channel" DDR and the manual says I can use three DIMMs for dual channel operation, I'm getting really confused. So, should I buy 2 or 3 Dual Channel DIMMs? Thanks, J. Middleman Posted Via Binaries.Net Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.binaries.net ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
#2
|
|||
|
|||
Middleman wrote:
So, should I buy 2 or 3 Dual Channel DIMMs? You only need 2 DIMMs for dual channel operation. One in the slot that is seperated from the others and one in either of the other two. You CAN run three DIMMs and still get dual channel operation. For example, 1 512M and 2 256M. But there is no real advantage to doing so. -- "Outback" Jon Gould | Let those who RIDE, 2003 Kawasaki Concours (wreck)| 1976 Honda CB750F (needs work)| DECIDE. 1972 Yamaha DS7 (project) | | HELMET LAWS SUCK CQ CQ CQ de KC2BNE | ______________________________|___________________ _________ AMD XP 2400+ @ 2180 MHz 768M PC2100 DDR @ 290 MHz Asus A7N8X-E Deluxe 120GB and 40GB Maxtor HD Asus GeForceFX 5600 (330/650) Cornerstone 21" Monitor Sony 52x40x52 CDRW NEC MultiSync 17" Monitor Sony 8X DVD+-RW Nostromo n50 Speedpad http://folding.stanford.edu - got folding? Team 33432 -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#3
|
|||
|
|||
"Outback Jon" wrote in message ... Middleman wrote: So, should I buy 2 or 3 Dual Channel DIMMs? You only need 2 DIMMs for dual channel operation. One in the slot that is seperated from the others and one in either of the other two. You CAN run three DIMMs and still get dual channel operation. For example, 1 512M and 2 256M. But there is no real advantage to doing so. -- "Outback" Jon Gould | Let those who RIDE, 2003 Kawasaki Concours (wreck)| 1976 Honda CB750F (needs work)| DECIDE. 1972 Yamaha DS7 (project) | | HELMET LAWS SUCK CQ CQ CQ de KC2BNE | ______________________________|___________________ _________ AMD XP 2400+ @ 2180 MHz 768M PC2100 DDR @ 290 MHz Asus A7N8X-E Deluxe 120GB and 40GB Maxtor HD Asus GeForceFX 5600 (330/650) Cornerstone 21" Monitor Sony 52x40x52 CDRW NEC MultiSync 17" Monitor Sony 8X DVD+-RW Nostromo n50 Speedpad http://folding.stanford.edu - got folding? Team 33432 One advantage is that you can buy 2ea. 256meg and run those as dual channel, until the price comes down on the 512meg sticks. Then put the 2 256 sticks in one channel and a 512 in the other for 1Gig total dual channel. Which I did, but it took the 1011 BIOS to make it work on my A7N8X-E Deluxe. OT: What do you think of the idea of having a PTO on a bike to power an ultralight plane? You could clamp the bike to the frame and connect the PTO then fly away. When you got near your destination you could land and unclamp the bike and ride the rest of the way. (or to a gas station) Luck; Ken |
#4
|
|||
|
|||
"Middleman" anonymous wrote in message ... Hi, I have an Asus A7N8X Deluxe MB with 3 DIMM slots. The manual says I scan use all three slots in dual channel mode. Huh? What confuses me is the term "dual channel." With three DIMMs??? Logically one would think this would be called tri-channel. Forgive my lack of knowledge on this subject. But I want to upgrade the memory for this motherboard, and I need to know how many DIMMs to buy for "dual channel" operation. Seeing as they are sold in pairs, and even called "dual channel" DDR and the manual says I can use three DIMMs for dual channel operation, I'm getting really confused. So, should I buy 2 or 3 Dual Channel DIMMs? Thanks, J. Middleman I think you are confusing channels and slots. Slots 1 & 2 = Channel 1 Slot 3 = Channel 2 I have 1 Gb of RAM using 3 DIMMs for dual channel operation as under : Slots 1 & 2 = 2 x 256Mb Slot 3 = 1 x 512Mb -- Doug Ramage |
#5
|
|||
|
|||
"Doug Ramage" wrote in message:
Slots 1 & 2 = Channel 1 Slot 3 = Channel 2 Ahh... This makes more sense. Okay, now I have another question. Why are some DIMMs being sold as pairs? Are they "matched?" Would I be better off to buy these rather than just individual DIMMs for dual channel operation? Also, why is there such a big price difference in the same size memory between brands? Would I be that much better spending almost twice as much for these other brands??? Thanks again... J. Middleman Posted Via Binaries.Net Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.binaries.net ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
#6
|
|||
|
|||
IMO, there is no need to pay a premium for so called matched memory. So long
as the sticks are the same speed and from the same manufacturer, that should be fine. I have 3 pairs of PC3200 RAM, none were bought as "matched", but each pair is the same brand and speed. I have had no problems, and all run in dual channel mode. However, ultra performance often relies on tight RAM timings for its extra performance, and matching could be more important. -- Doug Ramage "Middleman" anonymous wrote in message ... "Doug Ramage" wrote in message: Slots 1 & 2 = Channel 1 Slot 3 = Channel 2 Ahh... This makes more sense. Okay, now I have another question. Why are some DIMMs being sold as pairs? Are they "matched?" Would I be better off to buy these rather than just individual DIMMs for dual channel operation? Also, why is there such a big price difference in the same size memory between brands? Would I be that much better spending almost twice as much for these other brands??? Thanks again... J. Middleman Posted Via Binaries.Net Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.binaries.net ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
#7
|
|||
|
|||
I appreciate your advice, thanks...
J.Middleman Posted Via Binaries.Net Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.binaries.net ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
#8
|
|||
|
|||
Middleman wrote:
"Doug Ramage" wrote in message: Slots 1 & 2 = Channel 1 Slot 3 = Channel 2 Ahh... This makes more sense. Okay, now I have another question. Why are some DIMMs being sold as pairs? Are they "matched?" Yeah, but they don't need to be matched to run dual channel. They can be a different size, different number of chips, different manufactuer, different rated speed etc. As long as all DIMMs can run atthe speed you set them to, dual channel will work. Would I be better off to buy these rather than just individual DIMMs for dual channel operation? Nope. Unless they're cheaper... Also, why is there such a big price difference in the same size memory between brands? Would I be that much better spending almost twice as much for these other brands??? Timings. You can run the ram at higher frequencies and/or with tighter timings - thats what you pay the money for. Ben -- A7N8X FAQ: www.ben.pope.name/a7n8x_faq.html Questions by email will likely be ignored, please use the newsgroups. I'm not just a number. To many, I'm known as a String... |
#9
|
|||
|
|||
On Wed, 16 Jun 2004 19:52:35 +0100, "Ben Pope" wrote:
Middleman wrote: "Doug Ramage" wrote in message: Slots 1 & 2 = Channel 1 Slot 3 = Channel 2 Ahh... This makes more sense. Okay, now I have another question. Why are some DIMMs being sold as pairs? Are they "matched?" Yeah, but they don't need to be matched to run dual channel. They can be a different size, different number of chips, different manufactuer, different rated speed etc. As long as all DIMMs can run atthe speed you set them to, dual channel will work. lol recipe for a train wreck... |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Dual Channel memory vs. clock speed? | Key-Bored | Overclocking AMD Processors | 6 | October 20th 04 01:37 PM |
nf7 dual channel memory question? | Christo | Abit Motherboards | 0 | September 14th 04 12:48 PM |
MSI Master2-FAR and Dual 244's dual memory channel questions?!!? | Douglas Crane | AMD x86-64 Processors | 0 | August 27th 04 06:40 AM |
A7N8X, how identical memory required in dual channel mode ? | KK | Asus Motherboards | 6 | May 27th 04 06:19 PM |
Dual Channel Memory Question | CiRcUiT | Overclocking AMD Processors | 18 | September 19th 03 05:01 PM |