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Author Topic: Single Channel or Virtual Single-Channel message on boot.  (Read 2769 times)

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Gigabyte

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Hi there,

I get this message on boot. I would appreciate if somebody could tell me what are the exact memory requirements in order to enable dual channel mode. I have an 865P Neo. Do the memory sticks have to be the same size, frequency, etc?

Thanks in advance.

Gig
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NovJoe

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« Reply #1 on: 15-June-03, 04:27:49 »
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  • Hi Gigabyte,

    It is always recommended you get the same model, speed and capacity of the RAMs to run dual channel as the mobo will still detect both RAMs but only reconigsed them running in Dual Channel and therefore, it will double the RAM speed and halves the capacity. Getting the same type of RAMs will let mobo better detection and calculation of RAMs speed and capacity.

    Hope this info helps you...

    All the Best... :D!!!
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    Thudo

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    « Reply #2 on: 15-June-03, 05:31:13 »

    Uhmm.. what if you have the same type of ram on both channels? I'm using OCZ Enhanced Latency Dual-Channel Series 2x512MB PC3500 DDR 433MHz RAM on Dimms 3 and 4. Still showing as Single or Virtual Channel.

    Running v1.2 of Bios as I'm scared crapless that if I flash the board I'll get no better than a door stopper then wait days or weeks for a new board (need the system running for my small biz).

    MSI: Hope that v1.5 of the BIOS is coming along. I'm still thinking about exchanging for an Abit IS-7 as its kicking some serious butt in the benches.. (300Mhz FSB overclocking! Wooow!)
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    kwok_liangc

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    « Reply #3 on: 15-June-03, 11:38:29 »
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  • Quote
    Originally posted by NovJoe
    Hi Gigabyte,

    It is always recommended you get the same model, speed and capacity of the RAMs to run dual channel as the mobo will still detect both RAMs but only reconigsed them running in Dual Channel and therefore, it will double the RAM speed and halves the capacity. Getting the same type of RAMs will let mobo better detection and calculation of RAMs speed and capacity.



    That means, if I have 2 x PC 2700 512 MB ram , I would get twice the speed ( 333 x 2 = 666) but only 512 MB ? Then why is every apllication state that I have 1 GB of ram? ?(
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    Assaf

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    « Reply #4 on: 15-June-03, 12:59:33 »
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  • You put them both in the same channel, use DIMM 1&3.
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    Thudo

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    « Reply #5 on: 15-June-03, 14:50:17 »

    Interesting.. I tried all combinations but the only one that works is when they are on Dimm3 and 4. If I try any other combo the system will not POST. Remember.. I'm using OCZ Enhanced Latency Dual-Channel Series 2x512MB PC3500 DDR 433MHz RAM. Still showing as Single or Virtual Channel and using Bios v1.2.

    Anyone know what gives? Why does Dimm3 & 4 only work and the rest in combination do not? I want the Dual-Channel Feature (thats what I paid for)!

    Thanx all!
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    Petej61

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    « Reply #6 on: 15-June-03, 15:10:46 »

    Maybe you have a duff stick ...try each stick on its own and see what happens

    Another thing to try if they are both ok is to up your DDR voltage ...do you know what the voltage spec of your memory is?
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