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Compatible ddr2 cards for MSI P965 Neo w/ Pentium D 2.8Ghz

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January 16, 2010 10:09:29 AM

I have been researching memory all day and I want to make sure the ddr2 is compatible with my setup.

MSI P965 Neo
Pentium D 2.8Ghz

My mobo is compatible with Dual Channel DDR2 533/667/800 expandle to 4GB @ 800 or 8GB @ 533/667

I have decided to purchase 4 2GB DDR2 667. I want to get the best(fastest? stable?) RAM my computer will support.
Price is not a major concern.


Now I am confused about which chips are right.

1. Do I want PC2 5300, or PC2 5400 or is this just a rounding preference

2. What ram timing should I use? I have read too many contradictory things about this to make a confident decision.

3. Brand?


Any help is greatly appreciated, and recommendations are welcome.


Thank You in advance for your time and patience.
a c 128 } Memory
January 16, 2010 12:15:11 PM

You want pc6400, which is the same as ddr2 800. Frys has some 2x2gb for $69.99 after $15 rebate in their current ad.
January 16, 2010 1:06:56 PM

My motherboard has 4 slots, but can only handle up to 1gb ddr2 800 (4 x 1gb)

I want to get 2gb ddr2 633 (4 x 2gb) instead.
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a c 78 } Memory
January 16, 2010 3:10:01 PM

Follow o1die's recommendations. If need be, manually set the speed to 667MHz, but DDR2-800 that requires 1.8V should work. Tighter timings are better, i.e., 4-4-4-12 is better than 5-5-5-15.
a c 128 } Memory
January 16, 2010 3:22:25 PM

You can go with 4 1gb sticks of pc6400; it's the fastest ram your board takes, and costs no more than the slower pc5300.
January 16, 2010 7:50:45 PM

I am currently running 4 512gb of ddr2 pc4200 @ 4-4-4-12, and I do cpu/memory intensive music production/recording/editing. I run multiple programs wired into each other and many virtual instruments and my computer is lagging on windows xp 32 bit(fresh install). I am planning on dual booting windows 7.

Is 4gb of ddr2-800 really that much better than 8gb of ddr2-667? Even with a 64 bit operating system?
a c 78 } Memory
January 16, 2010 7:58:00 PM

When running all your programs, what are the Commit and Peak charges in Task Manager? What is the CPU utilization? That should help in determining where the bottleneck is.
January 17, 2010 10:09:55 AM


Sorry I had to work today, and I also have to work tomorrow. I am very appreciative of your responses. The nature of my 'bottleneck" is hard to recreate, as the nature of these propriety vsts etc, is quite random depending on how extensively I use them, and which DAWs are involved. You are completely right in your requirence of these statistics, but it is hard to view in the middle of a recording session.

I have read the full memory faq. And I appreciate the responses immensely.

What most interests me know is the reason why I would use 4gb 800 instead of 8gb 667.

I am not a video gamer, I only posted the card because of compatability reasons.
a c 78 } Memory
January 17, 2010 11:42:13 AM

At a minimum check the Peak Commit Charge in Task Manager and the CPU Usage History right after a run completes.
Quote:
What most interests me know is the reason why I would use 4gb 800 instead of 8gb 667.
Install 4GB if the Peak Commit Charge isn't even close to 4GB; otherwise install 8GB which might also work fine at 800MHz if you buy high quality modules like the G.Skill PI Black http://www.newegg.com/Product/Product.aspx?Item=N82E168... or the G.Skill HK http://www.newegg.com/Product/Product.aspx?Item=N82E168... Both kits require 1.9V to run stable at 4-4-4-12 timings.

I presume that you already know that Windows XP 32 can access a maximum of 3.25GB of memory and that if you install 8GB of RAM you need to use Windows 7 64-bit to access all available memory.
a c 128 } Memory
January 17, 2010 12:09:59 PM

Pc6400 is faster and shouldn't cost any more than pc5300. But you can use the slower ram if the price is cheaper.
January 18, 2010 12:07:33 PM

Thanks for your responses guys.

I have decided to take your advice and get the 800 ram. Worst case scenario I still have ram that will work when I buy a less dated motherboard. Besides most of my hardware extensive activities will take place in 32 xp until the programs I use are 100% 64 bit (W7) compatible.

Quick question though (if it comes down to it later)...If I run 2 800 1 gb cards dual channel, and then 2 667 2 gb cards dual.............I understand they will all run at 667. But will this give me an extra boost if 4gb isn't enough when my software is supported and i move to 64?


Basically:

4gb 800 vs 2gb 800 + 4gb 667 vs 8gb 667

Thanks for your thoughts on this.
a c 78 } Memory
January 18, 2010 12:36:59 PM

2gb 800 + 4gb 667 = 6 GB 667. The problem is that mixing modules sometimes leads to system instability, etc. When installing 4 modules, they should preferably all be the same and require voltage as close as possible to 1.8V.
!