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dual channel memory
Hi,
Can someone explain to me exactly what dual channel memory is? I know that socket 939 boards can use it. I'm wondering if it's something that's enabled by the motherboard( will standard PC 3200 run in dual channel mode) or do you have to buy dual channel memory? I have an asrock k8 combo-z motherboard that has both socket 754 and socket 939 on it. So when I'm upgrading to a socket 939 processor will I just be able to move my Corsair PC 3200 memory over to the other slots for the 939 and have it run in dual channel mode? Thanks in advance for your assistance. |
#2
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"Dual channel" uses two ordinary DDR DIMMs in a parallel fashion to give a
128 bit wide path to memory. (Single channel is 64 bit.) It may not quite work out to a 2X performance factor, but it gives nice numbers in benchmarks. The DIMMs must be the same size. It might be a good idea if they are identical (which is what you get in a dual channel kit), but it may not be necessary. I'm running a pair of generic 512 MB DIMMs on an Asus A8V (Socket 939) mainboard. The DIMMs both use Samsung chips, but they were purchased a few months apart, and the chips have different part numbers. Works fine, although it wasn't guaranteed to work. I see that the K8 Combo-Z has separate memory slots for the two CPU sockets. There are 3 slots for the 939 socket; You probably have to use 2 slots to get dual-channel operation. (I have read that some nVidia chipsets support dual-channel without requiring paired memory, but the chipsets only support Athlons that have no native dual channel capability. If that's confusing, it's because I'm confused.) Address scrambled. Replace nkbob with bobkn. "Buddy Mills" no wrote in message ... Hi, Can someone explain to me exactly what dual channel memory is? I know that socket 939 boards can use it. I'm wondering if it's something that's enabled by the motherboard( will standard PC 3200 run in dual channel mode) or do you have to buy dual channel memory? I have an asrock k8 combo-z motherboard that has both socket 754 and socket 939 on it. So when I'm upgrading to a socket 939 processor will I just be able to move my Corsair PC 3200 memory over to the other slots for the 939 and have it run in dual channel mode? Thanks in advance for your assistance. |
#3
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Thanks for the explanation. That cleared it up for me.
Buddy "Bob Knowlden" wrote in message ... "Dual channel" uses two ordinary DDR DIMMs in a parallel fashion to give a 128 bit wide path to memory. (Single channel is 64 bit.) It may not quite work out to a 2X performance factor, but it gives nice numbers in benchmarks. The DIMMs must be the same size. It might be a good idea if they are identical (which is what you get in a dual channel kit), but it may not be necessary. I'm running a pair of generic 512 MB DIMMs on an Asus A8V (Socket 939) mainboard. The DIMMs both use Samsung chips, but they were purchased a few months apart, and the chips have different part numbers. Works fine, although it wasn't guaranteed to work. I see that the K8 Combo-Z has separate memory slots for the two CPU sockets. There are 3 slots for the 939 socket; You probably have to use 2 slots to get dual-channel operation. (I have read that some nVidia chipsets support dual-channel without requiring paired memory, but the chipsets only support Athlons that have no native dual channel capability. If that's confusing, it's because I'm confused.) Address scrambled. Replace nkbob with bobkn. "Buddy Mills" no wrote in message ... Hi, Can someone explain to me exactly what dual channel memory is? I know that socket 939 boards can use it. I'm wondering if it's something that's enabled by the motherboard( will standard PC 3200 run in dual channel mode) or do you have to buy dual channel memory? I have an asrock k8 combo-z motherboard that has both socket 754 and socket 939 on it. So when I'm upgrading to a socket 939 processor will I just be able to move my Corsair PC 3200 memory over to the other slots for the 939 and have it run in dual channel mode? Thanks in advance for your assistance. |
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