Dual channel vs. Single Channel

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Could you return the 512mb and swap it for 2 x 256mb Dual Channel sticks?
--
Cari (MS-MVP)
Printing & Imaging

In Loving Memory of our dear friend Alex Nichol MVP

"Ryan" <Ryan@discussions.microsoft.com> wrote in message
news:CD3D3481-5657-42D4-9DD8-8ECFF375B078@microsoft.com...
>I just got a 512MB module, which will throw off my already configured 2x256
> dual channel mode when I put it in there.
>
> This will put me at 1 gig of ram. Was wondering if I will see a difference
> in performance now that it will go from dual channel to single channel.
> Eventually, I will fill that last slot of bring the dual channel mode, but
> for right now, it's going to be single channel for now.
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Why not just install it and try, doesn't cost anything.

"Ryan" <Ryan@discussions.microsoft.com> wrote in message
news:3184CAC7-C4C9-4FF2-8B25-610461976CE0@microsoft.com...
Cari,

I probably could. I got it at Newegg.com. However, I would like to fill that
last slot with another 512 instead of a 256, bringing me in the end to 1.5
gig. I would hate to fill it across the way with 4x256.

I would much prefer maxing it out at 1.5 as opposed to 1 gig. Would the
performance drop even though I would be at 1 gig single channel? If so, I
could probably hold off installing the 512 until I get the last 512 and put
them in at the same time.

"Cari (MS-MVP)" wrote:

> Could you return the 512mb and swap it for 2 x 256mb Dual Channel sticks?
> --
> Cari (MS-MVP)
> Printing & Imaging
>
> In Loving Memory of our dear friend Alex Nichol MVP
>
> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
> news:CD3D3481-5657-42D4-9DD8-8ECFF375B078@microsoft.com...
> >I just got a 512MB module, which will throw off my already configured
> >2x256
> > dual channel mode when I put it in there.
> >
> > This will put me at 1 gig of ram. Was wondering if I will see a
> > difference
> > in performance now that it will go from dual channel to single channel.
> > Eventually, I will fill that last slot of bring the dual channel mode,
> > but
> > for right now, it's going to be single channel for now.
> >
>
>
>
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Hi Ryan,

Which processor are you using AMD64? Intel?

Dual-channel gives substantial performance difference with Intel, but not
with AMD64 (or even AMD Athlon XPs) - only around 3% or so.

The extra RAM will do loads of good.

Thanks,

John

"Ryan" <Ryan@discussions.microsoft.com> wrote in message
news:%23ENaHyTKFHA.2396@TK2MSFTNGP12.phx.gbl...
> Well I installed the memory and when I booted up, of course, it brought me
> to a special part of the BIOS and said it was now configured to single
> channel mode.
>
> The odd thing now, which is probably minor, is when it boots up, my system
> makes a single BIOS beep right before XP is displayed.
>
> Any idea on this?
>
>
> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
> news:CD3D3481-5657-42D4-9DD8-8ECFF375B078@microsoft.com...
>>I just got a 512MB module, which will throw off my already configured
>>2x256
>> dual channel mode when I put it in there.
>>
>> This will put me at 1 gig of ram. Was wondering if I will see a
>> difference
>> in performance now that it will go from dual channel to single channel.
>> Eventually, I will fill that last slot of bring the dual channel mode,
>> but
>> for right now, it's going to be single channel for now.
>
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Hi,

Motherboards supporting dual-channel DDR memory modules will require you to
populate (i.e., install) each RAM stick in a particular manner, for example
1 or 2, 2 or 3, etc. This will be outlined in your manual/pdf file on your
driver CD. It has nothing to do with the BIOS settings. Once you install
the RAM modules in the correct slots the BIOS will automatically detect
"dual-channel" mode and you should experience a *little* kick out of your
machine. Having identical RAM modules help, although unmatched ones may
also run.

JohnJ


"xfile" <cou-cou@remove.nospam.com> wrote in message
news:%23elxkQVKFHA.2812@TK2MSFTNGP15.phx.gbl...
> Hi,
>
> Which section of BIOS settings will I know if my DRAM is configured as
> single or dual channel.
>
> Thanks in advance.
>
> "JohnJ" <someone@somewhere.com>
> ???????:evqwSJUKFHA.2136@TK2MSFTNGP14.phx.gbl...
>> Hi Ryan,
>>
>> Which processor are you using AMD64? Intel?
>>
>> Dual-channel gives substantial performance difference with Intel, but not
>> with AMD64 (or even AMD Athlon XPs) - only around 3% or so.
>>
>> The extra RAM will do loads of good.
>>
>> Thanks,
>>
>> John
>>
>> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
>> news:%23ENaHyTKFHA.2396@TK2MSFTNGP12.phx.gbl...
>>> Well I installed the memory and when I booted up, of course, it brought
>>> me to a special part of the BIOS and said it was now configured to
>>> single channel mode.
>>>
>>> The odd thing now, which is probably minor, is when it boots up, my
>>> system makes a single BIOS beep right before XP is displayed.
>>>
>>> Any idea on this?
>>>
>>>
>>> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
>>> news:CD3D3481-5657-42D4-9DD8-8ECFF375B078@microsoft.com...
>>>>I just got a 512MB module, which will throw off my already configured
>>>>2x256
>>>> dual channel mode when I put it in there.
>>>>
>>>> This will put me at 1 gig of ram. Was wondering if I will see a
>>>> difference
>>>> in performance now that it will go from dual channel to single channel.
>>>> Eventually, I will fill that last slot of bring the dual channel mode,
>>>> but
>>>> for right now, it's going to be single channel for now.
>>>
>>>
>>
>>
>
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

The motherboard I have is D865GBF. The BIOS did detect, but I was curious
about the 1 beep during startup.

"JohnJ" wrote:

> Hi,
>
> Motherboards supporting dual-channel DDR memory modules will require you to
> populate (i.e., install) each RAM stick in a particular manner, for example
> 1 or 2, 2 or 3, etc. This will be outlined in your manual/pdf file on your
> driver CD. It has nothing to do with the BIOS settings. Once you install
> the RAM modules in the correct slots the BIOS will automatically detect
> "dual-channel" mode and you should experience a *little* kick out of your
> machine. Having identical RAM modules help, although unmatched ones may
> also run.
>
> JohnJ
>
> "xfile" <cou-cou@remove.nospam.com> wrote in message
> news:%23elxkQVKFHA.2812@TK2MSFTNGP15.phx.gbl...
> > Hi,
> >
> > Which section of BIOS settings will I know if my DRAM is configured as
> > single or dual channel.
> >
> > Thanks in advance.
> >
> > "JohnJ" <someone@somewhere.com>
> > ???????:evqwSJUKFHA.2136@TK2MSFTNGP14.phx.gbl...
> >> Hi Ryan,
> >>
> >> Which processor are you using AMD64? Intel?
> >>
> >> Dual-channel gives substantial performance difference with Intel, but not
> >> with AMD64 (or even AMD Athlon XPs) - only around 3% or so.
> >>
> >> The extra RAM will do loads of good.
> >>
> >> Thanks,
> >>
> >> John
> >>
> >> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
> >> news:%23ENaHyTKFHA.2396@TK2MSFTNGP12.phx.gbl...
> >>> Well I installed the memory and when I booted up, of course, it brought
> >>> me to a special part of the BIOS and said it was now configured to
> >>> single channel mode.
> >>>
> >>> The odd thing now, which is probably minor, is when it boots up, my
> >>> system makes a single BIOS beep right before XP is displayed.
> >>>
> >>> Any idea on this?
> >>>
> >>>
> >>> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
> >>> news:CD3D3481-5657-42D4-9DD8-8ECFF375B078@microsoft.com...
> >>>>I just got a 512MB module, which will throw off my already configured
> >>>>2x256
> >>>> dual channel mode when I put it in there.
> >>>>
> >>>> This will put me at 1 gig of ram. Was wondering if I will see a
> >>>> difference
> >>>> in performance now that it will go from dual channel to single channel.
> >>>> Eventually, I will fill that last slot of bring the dual channel mode,
> >>>> but
> >>>> for right now, it's going to be single channel for now.
> >>>
> >>>
> >>
> >>
> >
> >
>
>
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

Hi,

Thanks and I did have two identical 512MB installed and Yes, when I paid
attentions to the boot-up screen, I read it's dual channel.

Thanks.


"JohnJ" <someone@somewhere.com>
???????:eO$TZ5XKFHA.3340@TK2MSFTNGP14.phx.gbl...
> Well Ryan, as far as I know, that 1 beep just indicates a normal POST
> (power on self-test) on bootup.
>
> Thanks,
>
> JohnJ
>
> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
> news:65EA9E79-7DB2-4AE0-85BF-0CCBBCB6F66C@microsoft.com...
>> The motherboard I have is D865GBF. The BIOS did detect, but I was curious
>> about the 1 beep during startup.
>>
>> "JohnJ" wrote:
>>
>>> Hi,
>>>
>>> Motherboards supporting dual-channel DDR memory modules will require you
>>> to
>>> populate (i.e., install) each RAM stick in a particular manner, for
>>> example
>>> 1 or 2, 2 or 3, etc. This will be outlined in your manual/pdf file on
>>> your
>>> driver CD. It has nothing to do with the BIOS settings. Once you
>>> install
>>> the RAM modules in the correct slots the BIOS will automatically detect
>>> "dual-channel" mode and you should experience a *little* kick out of
>>> your
>>> machine. Having identical RAM modules help, although unmatched ones may
>>> also run.
>>>
>>> JohnJ
>>>
>>> "xfile" <cou-cou@remove.nospam.com> wrote in message
>>> news:%23elxkQVKFHA.2812@TK2MSFTNGP15.phx.gbl...
>>> > Hi,
>>> >
>>> > Which section of BIOS settings will I know if my DRAM is configured as
>>> > single or dual channel.
>>> >
>>> > Thanks in advance.
>>> >
>>> > "JohnJ" <someone@somewhere.com>
>>> > ???????:evqwSJUKFHA.2136@TK2MSFTNGP14.phx.gbl...
>>> >> Hi Ryan,
>>> >>
>>> >> Which processor are you using AMD64? Intel?
>>> >>
>>> >> Dual-channel gives substantial performance difference with Intel, but
>>> >> not
>>> >> with AMD64 (or even AMD Athlon XPs) - only around 3% or so.
>>> >>
>>> >> The extra RAM will do loads of good.
>>> >>
>>> >> Thanks,
>>> >>
>>> >> John
>>> >>
>>> >> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
>>> >> news:%23ENaHyTKFHA.2396@TK2MSFTNGP12.phx.gbl...
>>> >>> Well I installed the memory and when I booted up, of course, it
>>> >>> brought
>>> >>> me to a special part of the BIOS and said it was now configured to
>>> >>> single channel mode.
>>> >>>
>>> >>> The odd thing now, which is probably minor, is when it boots up, my
>>> >>> system makes a single BIOS beep right before XP is displayed.
>>> >>>
>>> >>> Any idea on this?
>>> >>>
>>> >>>
>>> >>> "Ryan" <Ryan@discussions.microsoft.com> wrote in message
>>> >>> news:CD3D3481-5657-42D4-9DD8-8ECFF375B078@microsoft.com...
>>> >>>>I just got a 512MB module, which will throw off my already
>>> >>>>configured
>>> >>>>2x256
>>> >>>> dual channel mode when I put it in there.
>>> >>>>
>>> >>>> This will put me at 1 gig of ram. Was wondering if I will see a
>>> >>>> difference
>>> >>>> in performance now that it will go from dual channel to single
>>> >>>> channel.
>>> >>>> Eventually, I will fill that last slot of bring the dual channel
>>> >>>> mode,
>>> >>>> but
>>> >>>> for right now, it's going to be single channel for now.
>>> >>>
>>> >>>
>>> >>
>>> >>
>>> >
>>> >
>>>
>>>
>>>
>
>

Archived from groups: microsoft.public.windowsxp.hardware (More info?)

if your mobo work only with dual channel, than it won't work if you put only
one single channel RAM on it.
Better you put other 2 x 512 or 2 x 256 dual channel on slot 2 and 4

good luck,
michael

"CB4" <CB4.1ng8yo@no-mx.forum.osnn.net> wrote in message
news:CB4.1ng8yo@no-mx.forum.osnn.net...
>
> I was wondering, I have a very similar setup, except I have a different
> mobo: the NVIDIA nForce 2 Ultra 400 Chipset Based K7N2 Delta2-LSR. I
> have 2x256 PC3200 running in dual-channel in slots 1 and 3. I was
> wondering, if I add a 512 to slot 2, will it necessarily turn off the
> dual channel for slots 1 and 3? Like it did for Ryan? Any help would be
> appreciated!
>
>
> --
> CB4
> ------------------------------------------------------------------------
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