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Problem upgrading to 8GB


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I've been trying to do a memory upgrade from my current 2x2GB Corsair Dominator Kit (CMP4GX3M2A1600C8 1600MHz 1.65v ver3.1) to a 2x4GB kit, but without any luck since Windows 8.1 freezes on start up.


I first tried with a Vengeance kit (CMZ8GX3M2A1600C9R 1600Mhz CL9 1.5v) and following Corsair's phone support exchanged it for a XMS3 (CMX8GX3M2A1600C9 1600Mhz CL9 1.65v ver.3.24), which is the one I'm trying to put to work now.


The results are the same: The BIOS boots fine, identifies the memory without problem but Windows still freezes at startup and Memtest freezes on test 2. This happens even with only one DIMM inserted, and regardless of using Default/Auto or XMP settings...

Putting the old memory in, everything works just fine.


I would really appreciate any help you could give.

Thank you.



CPU-Intel Core i5 680 (3.6Ghz)

Motherboard-ASUS P7P55D Pro

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You're talking about DRAM voltage, right?


Dou you think it could be related to IMC voltage? That's the one that varies most from the default (or auto) values to XMP values (from 1.150 to something around 1.300).


Actually, that's also the value that differs most from the old memory settings too. Pretty much everything else has similar values in both XMP profiles.

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Thank you for your help, but unfortunately it didn't work.

I ended up exchanging the new memory kit for a different one from another brand (sorry Corsair), and now it's working fine.

I still like Corsair products, and will buy them in the future, but incompatibility with two different memory kits that were supposed to work, just got too tiring after a week of messing around with the Bios.

Thank you once again.

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