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P5N32-SLI SE Deluxe


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Thanks for the reply Ram Guy, could you tell me if I can use instead the TWIN2X2048-8500C5*¹ memory?


I want to run at 1066MHz or at the least 800MHZ


My CPU will be the Intel X6800 - 2.93GHZ

2Gigs of ram (two modules)

No overclocking - for now

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I'm building my first computer. I have the P5N32-SLI SE Deluxe and an Intel X6800. I also bought CORSAIR TWIN2X2048-6400PRO, believing that this mobo supported DDR2 800, since Asus's web site says it does:



However, I'm looking at the manual, and it only mentions DDR2 667 and 533. I've also seen an entry in another forum by someone who said that their Corsair DDR2 800 memory did not work in this mobo, and that Asus tech support said it was not supported.


So, I'm confused. Some places say DDR2 800 is supported (Asus's web site) and some places say it isn't. I'd liek to know before I start putting the pieces together. Can I use the DDR2 800 I have? Do I have to tweak anything to get it to work? I should I exchange it for DDR2 667 or 533 (and which one)?


Thanks for helping,



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Hey Ram Guy,


Is Twin2x2048-8500 backward compatible to 6400 version(to get FSB 800MHz)? Just in case the Twin2x2048-8500 doesn't work at FSB 1066MHz, I can use the Twin2x2048-8500 with a lower FSB,- 800MHz.


Asus might fix the problem down the road and I don't have to replace the memory to get 1066Mhz(FSB). If the 1066MHz problem does exist with this motherboard.


Thx for ur help.

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  • 4 weeks later...

Well, I been trying to find an ETA for the Twin2x20486400C3 but no one has a ETA on these memory, they are very hard to get :(. I am tired of waiting, these memory are the only thing I am missing to complete my system.


So, RamGuy, can you recommand a memory module that is close to or better then the Twin2x20486400C3 for this motherboard. My spec again is


Intel x6800

P5n32 Sli Se deluxe

Antec 650W PSU

XFX 7950GX2 - 520MHZ


I want a timing as close to the spec of Twin2x20486400C3

Each module pair is tested together at 800MHz

EPP standard 3-4-3-9, 2.2V values at 800MHz


Should I get TWIN2X2048-6400C4, TWIN2X2048-8500C5, TWIN2X2048-8500C5D or TWIN2X2048-8888C4DF?


Thanks for your help.

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I have an Intel x6700 w/ P5N32-SLI SE Deluxe and am unable to get TWIN2X2048-6400C4 working with the system. One in set at 800Mhz works fine... but you put the second in and you have to clock it down to 667 and then its only about 80% stable. So I just took my second DIMM out until Asus decides they are going to fix this piece of crap
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I really want the Twin2x2048-6400C3 when it's in stock, so for the time being I can get TWIN2X1024-5400C4 (for about $140.00)to hold me over. Will this work on this motherboard?




I am running Twin2x1024a-6400. I had problems initially but that was due to faulty modules, got the replacements today - and everything is fine so far.


Hope this helps

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