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Compatibility with P8z77-vPro and CMZ16GX3M4X1600C9


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Hi All,


Firstly thanks to anyone who takes the time to read and hopefully reply to this thread.


I have just installed CMZ16GX3M4X1600C9 into my P8Z77VPro.


I realise that I accidently purchased the CMZ16GX3M4X1600C9, rather than the CMZ16GX3M4A1600C9 which is actually on the QVL. (I hope you notice the X in the first model number and the A in the second)


It does however have the same timings and voltage, so I'm not sure how the modules are that different?? (if this is a ridiculous newbie complaint I am sorry)


It does not boot with all the DIMMS installed, occasionally when I run the Mem OK, it runs for a little while then turns itself off. I can get it to run for a while with 4GB in slot A2, but again I have to run Mem OK. (it says to save the memory settings - I go into the bios and hit f10 to save changes, but it might not re-boot the next time i turn it off.


I have not run Memtest, and I will try and do this this afternoon.


What I'm wondering is:

- Is my ram just not compatible???

- Might there be a problem with the mobo??

- Am i missing something obvious??


thanks dom

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You could try setting the DIMM voltage to 1.55 or even 1.6v and the system agent .2volts above default. But only add what you need to get them stable.


I would run the modules through memtest to see if you have a bad stick before you send them in. This could easily be MB related too.


Anyway, test each stick in the first slot and let them run for about 3 passes or until you get an error. No sense in going any further if they error. At least on that slot.


If you have any failing modules , test that module in the other slots to see if it is indeed that module or maybe a bad slot.


I would hate to see you send in perfectly good RAM

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