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#1
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Dualchannel DDR
Hopefully this isn't too stupid a question...
I currently have 2x512MB DDRs, I need to upgrade my RAM a little... If I were to purchase another pack of 2x512MB dual channel DDRs and add them to the system, can I still use dual channel? In other words, do each of the two banks need to be matches to the other bank, or do I just need to match the RAM within each bank? I'll purchase RAM as nearly identical to what I already use as I can, but it won't be the same lot number. -- Men are from Earth. Women are from Earth. Deal with it. |
#2
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"DevilsPGD" wrote in message .. . Hopefully this isn't too stupid a question... I currently have 2x512MB DDRs, I need to upgrade my RAM a little... If I were to purchase another pack of 2x512MB dual channel DDRs and add them to the system, can I still use dual channel? In other words, do each of the two banks need to be matches to the other bank, or do I just need to match the RAM within each bank? I'll purchase RAM as nearly identical to what I already use as I can, but it won't be the same lot number. -- Men are from Earth. Women are from Earth. Deal with it. You will not be able to use dual channel. There are only 2 slots that allow for dual channle if you throw ram in any others it bumps it back to single channel. |
#3
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In message "Chris Stolworthy"
did ramble: Hopefully this isn't too stupid a question... I currently have 2x512MB DDRs, I need to upgrade my RAM a little... If I were to purchase another pack of 2x512MB dual channel DDRs and add them to the system, can I still use dual channel? In other words, do each of the two banks need to be matches to the other bank, or do I just need to match the RAM within each bank? I'll purchase RAM as nearly identical to what I already use as I can, but it won't be the same lot number. You will not be able to use dual channel. There are only 2 slots that allow for dual channle if you throw ram in any others it bumps it back to single channel. That is inconsistent with the manual, and my reading online... GA-8IPE1000 Pro3 supports the Dual Channel Technology. After operating the Dual Channel Technology, the bandwidth of Memory Bus will add double up to 6.4GB/s. GA-8IPE1000 Pro3 includes 4 DIMM sockets, and each Channel has two DIMM sockets as following: Channel A : DIMM 1, DIMM 2 Channel B : DIMM 3, DIMM 4 If you want to operate the Dual Channel Technology, please note the following explanations due to the limitation of Intel® chipset specifications. 1. Only one DDR memory module is installed: The Dual Channel Technology can't operate when only one DDR memory module is installed. 2. Two DDR memory modules are installed (the same memory size and type): The Dual Channel Technology will operate when two memory modules are inserted individually into Channel A and B. If you install two memory modules in the same channel, the Dual Channel Technology will not operate. 3. Three DDR memory modules are installed: Please note that The Dual Channel Technology will not operate when three DDR memory modules are installed; part of them will not be detected. 4. Four DDR memory modules are installed: If you install four memory modules at the same time, the Dual Channel Technology will operate only when those modules have the same memory size and type. My question was more "how close a match does the second batch need to be" -- UNIX Sex {look;find;talk;grep;touch;finger;find;flex;unzip; mount;workbone; fsck;yes;gasp;fsck;yes;eject;umount;makeclean;zip; split;done;exit} |
#4
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I think Chris is wrong on this. I have a Gigabyte mobo as well and I can use
both channels. I think your mobo can handle up to 4GB of dual channel memory. With regard to your other question I'm pretty sure that as long as the memory sticks are matched in pairs it doesn't matter if you use different pairs. Like you said, you just need to match the ram within each bank. Cheers. Si "DevilsPGD" wrote in message .. . In message "Chris Stolworthy" did ramble: Hopefully this isn't too stupid a question... I currently have 2x512MB DDRs, I need to upgrade my RAM a little... If I were to purchase another pack of 2x512MB dual channel DDRs and add them to the system, can I still use dual channel? In other words, do each of the two banks need to be matches to the other bank, or do I just need to match the RAM within each bank? I'll purchase RAM as nearly identical to what I already use as I can, but it won't be the same lot number. You will not be able to use dual channel. There are only 2 slots that allow for dual channle if you throw ram in any others it bumps it back to single channel. That is inconsistent with the manual, and my reading online... GA-8IPE1000 Pro3 supports the Dual Channel Technology. After operating the Dual Channel Technology, the bandwidth of Memory Bus will add double up to 6.4GB/s. GA-8IPE1000 Pro3 includes 4 DIMM sockets, and each Channel has two DIMM sockets as following: Channel A : DIMM 1, DIMM 2 Channel B : DIMM 3, DIMM 4 If you want to operate the Dual Channel Technology, please note the following explanations due to the limitation of Intel® chipset specifications. 1. Only one DDR memory module is installed: The Dual Channel Technology can't operate when only one DDR memory module is installed. 2. Two DDR memory modules are installed (the same memory size and type): The Dual Channel Technology will operate when two memory modules are inserted individually into Channel A and B. If you install two memory modules in the same channel, the Dual Channel Technology will not operate. 3. Three DDR memory modules are installed: Please note that The Dual Channel Technology will not operate when three DDR memory modules are installed; part of them will not be detected. 4. Four DDR memory modules are installed: If you install four memory modules at the same time, the Dual Channel Technology will operate only when those modules have the same memory size and type. My question was more "how close a match does the second batch need to be" -- UNIX Sex {look;find;talk;grep;touch;finger;find;flex;unzip; mount;workbone; fsck;yes;gasp;fsck;yes;eject;umount;makeclean;zip; split;done;exit} |
#5
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In message "Si"
did ramble: I think Chris is wrong on this. I have a Gigabyte mobo as well and I can use both channels. I think your mobo can handle up to 4GB of dual channel memory. With regard to your other question I'm pretty sure that as long as the memory sticks are matched in pairs it doesn't matter if you use different pairs. Like you said, you just need to match the ram within each bank. That's my reading as well -- It's definitely possible to run dual channel DDR with 1 or 2 pairs though, the manual is very clear about that. I'll probably just do it, I think I can get "identical" pieces of DDR, but we'll see. -- A cheap shot is a terrible thing to waste. |
#6
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in theory, just match type, speed, and size.
but in practice, it is highly adviseable to not only get 4 identical modules from the same manufacturer but to also get all of them from the same lot. because of the flakiness of DDR operation, most memory manufacturers will honor this request. I build systems and I request same lots modules all the time. i havent had an issue with any system so far, but i do know people who have had good MB's and highly regarded memory and still had problems. one guy i know had a Asus P4C-800 board with Corsair memory and it wouldnt fly. I have built 7 systems in the past 3 months with either the P4P-800 or P4P-800E board with bargain crucial memory with out a hitch. basically, it simply boils down to the fact that you have to just try and see. make sure you can get an exchange first before you buy. if they wont do it, go elsewhere, there are plenty of vendors who will. ============== Posted through www.HowToFixComputers.com/bb - free access to hardware troubleshooting newsgroups. |
#7
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