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Asus P5n-e Sli


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I'm building a system with the following:



1G Corsair XMS2 DDR2 800 - CM2X1024-6400

Intel Core 2 Duo E6300

XFX 7600GT Video Card


Lite-on SATA DVD-R drive


After installing my system, the fans spin for about 2 seconds and then turn off.

I can't get the system to post.


So, as I am debugging, I see that the ASUS manual states that only the Corsair CM2X1024-6400C4 is compatible with this MB.


Will my stick of memory not work because the timings are too high? Do I need to get another stick of memory to match?


Thanks in advance for any responses ...

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I would check to make certain that you have installed the CPU Fan/Heatsink Assembly correctly.


These LGA775 Fan/Heatsink Assemblies need to be pressed down on the CPU with quite some force or the system will fail to post and shut the system down.

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  • 8 months later...

Your Asus P5N-E SLI bios version is important - Updated it to latest to fix memory compatibility issues. Your power supply should be at least 600 Watts if you are overclocking.


I have similiar settings as yours.

Asus P5N-E SLI

Ultra Infinity 600W

ZALMAN CNPS7700 cooling fan

Eva Geforce 7600 GT

Two CM2X1024-6400 (XMS6405v5.2) 800Mhz (1GB Dimm) in yellow slots.


Overclocked: Unlinked 1500 FSB/950Mhz Memory => 3.0Ghz Stable passed all memtest+ (temp:cpu 50c/mb 44c)

This is a 40% increased in CPU speed.


My only issue is trying to used two more CM2X1024-6400. My cpu temp isnt cooler than I expected like others below 45c with my case open to the room.

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