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BSODs w/ Asus P5N32-E SLI and TWIN2X2048-8500C5D


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I just built my new rig and I really like it.


I finally saw the option in the BIOS to 'Enable SLI-Memory'. So I chose that option and started it out at CPUOC 0% since I've not overclocked anything on my system.


I boot into XP or Vista, and will BSOD. If I leave it disabled I'm fine.


The only thing I notice is at boot on POST, it shows freq of mem at 800mhz when disabled and 1067 when enabled. I've tried 0%, 1% and MAX and get same results.


Can someone please let me know what I'm doing wrong on getting this memory to work in an SLI config setup? (Yes I have dual 8800GTs). :)




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My EPP's never worked wither. Goto overclocking in you bois.

Select manual settings/

Edit FSB/MEM config and change top option to linked, then change ratio to 1:1

This will make the memory run at 1066Mhz.


Youll also need to change the memory timings in the bois to get the most out of them, get CPU-Z to show you the SPD on your mem and change the timings in the bois to match.

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Ok I made the changes in the BIOS that you recommended Psymn.


I need to still run CPU-Z so all the timings are on auto currently, but the bootup shows the memory at 1067 now.




This is what is on my modules.


XMS2-8500 1024MB 1066MHz 5-5-5-15 2.10v ver2.2 07460807

so looks like version 2.2


Hope that helps.



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I would recommend changing the following settings:


FSB-Memory Clock Mode: Unlinked


DDR FSB: 1066

tCL: 5

tRCD: 5

tRP: 5

tRAS: 15


Advanced Memory Settings:

tRRD: Auto

tRC: Auto

tWR: Auto

tWTR: Auto

tREF: Auto

Asysnc Latency: Auto




Vdimm: 2.15v


Test with Memtest and see what happens.

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