Trouble with Neo4 Platnum and AMD X2 with dual channel memory

I just installed an X2 3800+ in my Neo4 Platnum board. The board had a 3500 in it and ran fine. When I installed the X2, the machine will no longer POST if the memory is in the dual channel mode. I flashed to the latest BIOS (1.8) and it still does not work. I am using 2 Corsair XMS 2-2-2-5 Dimms each at 512MB. The PC POSTs fine if I place both modules in the Green slots. It does not work with 1 in green and 1 in purple (with either Dimms1-2 or 3-4). Has anyone else seen this?

Todd,
Your last post help me understand your situation a bit better. Here are some questions for you:
1- On your old system did these memory sticks work fine has a dual channel pair? Were these 2 memory sticks bought has a dual channel rated matched pair?
2- In your own words give me your definition of POST?
3- In your own words give me your exact detailed rendition of what happens when you try to post with dual setup. (How far do you get? Where does it hang up?)
4- Can you access your BIOS if booting with only one memory stick? If so, this is only for testing purposes, set your memory as 2.5,3,3,8, and 2T and add 0.05 volts to both your CPU and memory recommended voltages. Save, exit, and then shut down your system. Re-install the second stick of RAM in a proper dual channel slot. Re-boot and see what happens. If successful posting and booting in dual channel with this BIOS config go back to your BIOS and tighten your board and memory timings one at a time until you ID the perfect BIOS config for your CPU and RAM. Do the same with your CPU & RAM voltages.
AMD CPUs encompass their own memory control devices. There might just be enough variance between your older & newer AMD chips to reject dual configuration. If this is the case you may be able to correct it by using step for above. If this does not work, you sould borrow some suitable and proven dual channel memory sticks from a friend to see if the will work in your rig as dual channel?
Just keep on trucking & you'll solve it

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I'll try asap slots 3 & 4.
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Hi,
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Elixir 2x512MB DDR 400 CL3
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No MAT or dot ram settings are 3,3,3.
I am bit running out of ideasö
before i forget i updated the bios from 3.3 to 3.5 but did not change the problems.
Maybe you guys have some ideas what else can i try.
thx a lot in advance. i hope i provided all informations which are necessary.
greetings faxe

Hi,
i tried a few more things which make confident that i have the problem narrowed down to the memory.
i tried to install windows again with only using the third memory slot single channel and it worked fine.
now i tried to go down with the memory speed to ddr333 and using dual channel and so far that seems to work too.
so i think i will go for other memory.
if you think i am wrong please correct me
greetings markus

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hi i ordered the mobo and when it came it didnt work so i sent it back
well the guy called my house and told me that he can send me the same mobo back , then he asked how i would be setting it up when i told him i had 2x sticks of 512 memory he told me that the mobo dont work well with dual channel
is this true or is he just tryin to get me to upgrade ???
thx
memory = 2x 512 mb ddr Samsung

Quote
when i told him i had 2x sticks of 512 memory he told me that the mobo dont work well with dual channel
is nearly as good as:
Quote
I called the reseller and he said it is completely normal for a computer to bomb out when running 3D.
https://forum-en.msi.com/index.php?topic=94728.msg681427#msg681427
maybe its the same person!

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hi
try slot 2&3.
what brand of memory?
what speed is the memory working in?
there is no option to disable or enable dual channel.
just put them in slot 1&3 or 2&3.
bye

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Dump question, but have you pickup the correct update e.g. for 64bit? ==> http://www.microsoft.com/downloads/details.aspx?FamilyId=91672C7C-614B-404C-850C-377541E93C18&displaylang=en
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Better double check it.
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Quote from: BOSSKILLER on 07-April-08, 23:55:36
Remove your OC then see how its goes.
"When the system boots in single channel mode (only 2 or 6gb of ram meaning 1 or 3 sticks installed into the 4 slots) its' rock stable. When it boots into dual channel mode (2 x 2 sticks or 2 x 4 sticks) extemely unstable. "
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Sorry for my English , English is my 3rd language
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Quote from: Alex.Ethuba on 06-August-09, 02:27:46
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