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Ram ddr2-1066 on mb asus p5w dh deluxe-800mhz

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May 29, 2012 5:33:31 PM

Hello,
I need your help. I have a chance to get RAM modules for my mobo ASUS P5W DH Deluxe, BIOS v-3001, Win7 Ultimate x64. The modules are DDR2-8500 1066MHz 4x2GB. The mobo User Guide says that 800MHz is maximum. Will that 1066MHz RAM modules work?
Thanks for your response.
a b } Memory
a b Ĉ ASUS
May 29, 2012 7:10:34 PM

If your mobo supports underclocking, then you can run it.
May 29, 2012 7:33:52 PM

Double check to see if the RAM will actually fit in the RAM slot as the notch is moved between different types of RAM.
Flare
May 29, 2012 7:40:27 PM

99% of the time the ram has the SPD clock speeds and timings that the mother board can read for multiple settings.

So chances are if you plug in that 1066 ram the mother board will read the 800 SPD setting and tighten up the timings for you. Even if you plugged that ram into a 666 board chances are the ram has the speed and timmings that the board can read and it will just work.

Sometimes cheap off brand ram does not have the SPD information on it that the motherboard can read to automatically set the ram. In this case you would have to set the ram manually in the bios.
!