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How to make different RAM Modules work together?

post #1 of 9
Thread Starter 
I have two 2GB sticks of OCZ RAM mixed with a single 4gb stick of generic/brandless RAM. I get BSOD everytime I mix the two. I usually have the dual OCZ's in two identical channels (DIMM 1 and 2) and have the 4GB generic stick in its own channel (DIMM 3).

I noticed the system is very stable when I use the two OCZ's only. The moment I insert the other in (after turning system off of course) I get BSOD at any given moment usually during some operation.

I tried manual timings and everything. These are DDR3 1333mhz for all three sticks. I tried 9-9-9-24 which is the usual rating for the speed.

Any ideas to make these two OCZ and the generic 4gb stick get along?
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post #2 of 9
If you're using the "Auto" setting in BIOS, then it's reading the SPD table on the stick closest to the cpu (DIMM0). Either put the slowest stick with the highest latency in that slot or choose the voltage and timings manually. I've had bad luck mixing ram even when set properly, but sometimes it works out okay.
Edit: I see you set timings manually, but did you set voltage also? Use the highest voltage of the sticks.
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post #3 of 9
Is the generic ram working 100%? Run memtest on it just in case.
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post #4 of 9
You will lose performance by using that 1x4GB DIMM; you will not be running proper dual channel. I suggest getting another 2x2GB kit, identical if you can, or a brand new 2x4GB/4x2GB kit.
post #5 of 9
Thread Starter 
The single 4gb stick seems to work ok if installed by itself without the other 2 OCZ. The same other way around, the OCZ tend to work ok by themselves without the 4gb stick. I can run memtest over the night for that 1 stick to see though.

Since there is no information I can find for that 4gb stick what do you think I should set the voltage to?
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post #6 of 9
1.6v
post #7 of 9
TLDR

Set the timings to the looses of the 2 sets and the volts to the higest of the 2 sets
post #8 of 9
Thread Starter 
Quote:
Originally Posted by CravinR1 View Post
TLDR
Set the timings to the looses of the 2 sets and the volts to the higest of the 2 sets

Alrighty. I actually typed "tldr" into google in an attempt to figure out what it meant, then came across "Too Long Didn't Read". If that is what you're meaning to say, all have to say is "whoa". 6 and a 1/2 lines of typed text are too long for you to read? What is the world coming to? What are you gonna go do instead? Watch re-runs of grey's anatomy? family guy? or download porn? The only word that comes to mind when people say things like "I don't have the time" or in this case "TLDR", is ignorance. You would rather go pleasure yourself doing something non-beneficial than something worthwhile, like helping someone with an answer. I bet my sweet *ss that even though this post is much longer than the OP, you will bother to read it, simply because I am dissing you, and everyone likes drama. Human beings.....hm

By the way thanks for that little input, I'll be sure to try it. Drive carefully on your way to that alarming world conference.
Edited by Acitone - 1/4/11 at 8:30pm
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post #9 of 9
TLDR

Google is right (I read your first sentence)

You're welcome
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