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Series of question regarding DRAM.

post #1 of 4
Thread Starter 
First of all, I want to clarify that this is my first time attempting to oc, so plz have patients to wut might seem like really trival question.
I have 3 * 2GB, PQI, DDR3, 1333MHz, 9 CL, Ram in my system.
Tech Spec says Voltage = 1.5V +-0.075
It seems that all overclock process involves increasing the DRAM Voltage to approximately 1.65V.
My first question is - is it necessary to increase volt? and if it is, is it safe to increase DRAM Voltage on my memory?
2 - how do you know if u have damaged ram? Is WOW crashes due to fatal error every 5-10 min a good indicator? Also I got the following from Prime95- "fatal error: rounding was .5, expected less than .4. Hardware failure dectected, consult stress.txt.file." (This occured after fine tuning with varies voltage. The error persists after I went to bios and reset everything to default)
3 - I can always use store bought 3 * 2GB (Multi-channel Kit: Triple Channel Kit) memory in 2 separate system that consist of 1 Dual channel and 1 single DIMM? (There is no magic lasso that binds the 3 memory together, forever)
4 - the whole "Timings (CL-nRCD-nRP)" thing, I have 9-9-9-24, wut are the significant of them? I see a lot of ppl manually lowering them, is that anything like after increase BCLK Freq, you might want to lower your cpu multiplier to balance things out? I can do a basic OC without worrying about them right?
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Hard DriveOptical DriveOSMonitor
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post #2 of 4
ok, first off, type like you are from earth and not from the internet, it makes things a little more difficult for us to decipher and formulate a response

1: It all depends on the quality of the chips on the ram sticks. some modules can tolerate a pretty decent overclock without increasing the voltage whereas others wont tolerate much of an overclock without increasing voltage a rather considerable amount. this is something you have to find out yourself.

2: the most surefire way of discovering failed ram is to return everything to stock and then use memtest to check everything. If bad blocks come up, then consider the entire stick bad, and if they come up all over the place, toss all the sticks, they are worthless now.

3: yes you can, but they will run in single channel configuration, which will put a bit of a hamper on performance by cutting the max possible bandwidth in half, which in turn can introduce one nasty bottleneck.

4: those numbers tell you how long it takes the ram chips to perform and then respond to a action requested by the processor. Lowering these, especially the CAS latency, can improve performance, but will come with the cost of either increased performance or a lower overclock cap. Its highly recommended you DONT tweak these until you have achieved the desired overclock, as doing so will most likely prevent you from reaching said overclock.
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post #3 of 4
Thread Starter 
I want to begin by saying thanks for the answers, but there are some confusion I'd like to clarify.
"type like you are from earth and not from the internet"
??? - I take that as my question is too detailed, thus hard for anyone to solve my rather personalized problem.

1. "It all depends"
That is very vague....
As I stated - "I have 3 * 2GB, PQI, DDR3, 1333MHz, 9 CL, Ram in my system."

2. "If bad blocks come up, then consider the entire stick bad, and if they come up all over the place, toss all the sticks, they are worthless now."
So, "entire stick bad" meaning only one stick of memory is bad, and "all sticks - worthless", meaning all 3 sticks of my memory is bad.
Also, wut is the difference between memtest and memtest+, which one should I use???

3. I asked because, if only 1 or 2 out of the 3 sticks of memory is bad, I can still use the left overs in dual or single configure.

4. I am hearing - u can and should ignore them during oc if u have no idea wut they mean.
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post #4 of 4
1: ok... some chips used my memory manufacturers are great for overclocking and running at tight timings. A good example of this was that one batch of DDR chips which could crack 500mhz @ 2-2-2-7, which is considered VERY good. Other chips are flat out terrible, eg: you try to overclock and you cant get them stable without greatly loosening the timings.

2: yes, yes, and im not sure, but read this and it should tell you everything you need to know about running memtest http://www.overclockers.com/forums/s...d.php?t=409152

3: yes you can. Triple channel kits are essentially the same as dual channel in the regards that all 3 sticks are matched up and work best together. If you loose one stick to failure, then its no different than a kit of dual channel memory.
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Leviathan
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Patriot Pyro 60GB Xigmatek Gaia Windows 7 Ultimate Acer S230HL 
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