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Asus P5B Deluxe WiFi and the QVL


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I want to buy a new PC-system with the Asus P5B Deluxe WiFi.

I have downloaded the QVL for this Motherboard to find out whtch RAM I can use. There are 3 different Corsair RAMs:

  • CM2X512A-6400
  • CM2X1024-6400PRO
  • CM2X1024-6400C4

The system shall have dual-ch. 1GB RAM. I think the PRO is too expansive for me. If I read it right the 512 is only single-ch. and the C4 dual but I can only find the CM2X1024-6400 at online shops. (I live in Germany.)

So where is the different between the CM2X1024-6400 and the CM2X1024-6400C4?



I hope you can help me.

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  • Corsair Employees
C4 means the modules are tested at Cas 4-4-4-12 with nothing after the part# the XM2S-6400 would tested at Cas 5-5-5-15, so the XM2S-6400C4 would be tested with slightly faster timings. I would suggest Twin2x2048-64--C4 for best performance in Dual channel.
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