Dual Channel Ram in w510

I've got a w510. On Lenovo's site it says that it's capable of dual channel. i've got 2x2GB right now in my system at 1066. i ordered 2x4GB at 1066. my question is
will i still be able to run dual channel?
and if so, how do i arrange the ram being that two slots are in the back and the other two are on the other side underneath the keyboard.

Ram came in this morning. got lucky on the first try with getting it to run dual channel.
when i opened the ram slots on the back of the pc i placed a a 4gb stick on the left side.
then i lifted the keyboard for the other ram slots and they're placed on top of each other. i took the one on top out and placed a 4gb stick in there. then i placed that 2gb stick that was there and placed it in the only slot remaining. booted my pc and on the start up it said it was installing some stuff and something about dual. and then to make sure i checked cpu-z and it showed i was running dual.
this helped a bit on how to install the ram
http://www.youtube.com/watch?v=RBEzYombu2c
went from a 5.9 to 7.2 on the windows index score. now my lowest is the harddrive which is at a 5.9. probably going to wait until SSD becomes a lot cheaper to get one.

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with RAM banks on slot 1 & 3 or 2&4 as recomanded, the PC doesn't start up
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I thought you may be interested to know of my experience with memory on this motherboard. I had 2 x 256MB of Geil Value PC3200 DDR Ram on slots 1 and 3 for months and months with no problem at all - they were identical modules but NOT a matched pair - and ran in dual channel mode @ 2.5 3 3 6 and 400MHz according to CPU-Z ... absolutely no problems at all. These are double sided memory modules.
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can you refer to manual and check which DIMM slots are default? As far as I know, they're 1 and 3.
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Franknputer is right.
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Quote
I've tried the 1-3 and 2-4 slots with two 4gb sticks and it does not work, but the 1-2 and 2-4 works fine, have also tried all the individual sticks so none of them are faulty.
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Cheers Agian .....
Ok ATM im using the two slots that are together ... the stand alone slot is empty .....So I should move on om my Ram Sticks to the stand alone Dimm slot ???
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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
"This comes inside SP1 for vista 64, as noted with my other system during the build. "
Better double check it.
Install all four memory sticks and do a memory check with >>Memtest86<< 1st, ensure that no error(s) will comes during testing.
Also how about that?:
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. "
That means, timings are too tight, or they need a bit more vcore help, or some of the memory stick has failure.
"MSI P7N SLI Platinum - MS-7380 - Bios 2.0 on Vista Ultimate 64-bit - all updated."
That BIOS is not for your board, you should use 1.xx

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Thanks for your reply. I understand in reality I have really about 3.25 gigs. But if I had both sticks in would it be using all that 3.25 on one stick or would it split the 3.25 between the two sticks.
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Dual Channel Ram in w510

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