3gb ram only runs 333mhz

I have at msi k8n neo 4 platinium,i use 2 run 2gb of ram(2x1gb)i just got another gb(2x512),so all ram slots are full,but now they only runs 333mhz,why's that i got the latest bios 1b

Hi,
I understand that you try to run 4 sticks of memory and it drops to DDR333?
Well it's because of the CPU, AMD64's only support 4 banks of memory at full speed, but banks are not the same as slots.
1 stick single sided = 1 bank
1 stick double sided = 2 banks
so 4 sticks double sided = 8 banks, ergo it drops.
Some are lucky that it doesn't drop, but for most, yes it drops.

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< Edited by Host >

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I'm running into some problems with the amount of free RAM I have available to me, and it's causing serious performance problems.
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About OS X Memory Management and Usage
Reading system memory usage in Activity Monitor
Memory Management in Mac OS X
Performance Guidelines- Memory Management in Mac OS X
A detailed look at memory usage in OS X
Understanding top output in the Terminal
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Well I was totally set on getting a MBP until I saw my friends 24" iMac and I fell in love.
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Glad you got it solved. Yes, before posting, people should try the search feature, especially now with the new improved server. But, your post is still valuable and someone may find it in their search which would lead them to the solution.
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Solved!
Go to Solution.

Welcome to the forum!
The CPU will run at full speed only when sufficiently loaded, what you're seeing is Intel SpeedStep Technology at its very best.
Open up 30 Firefox windows, and watch a youtube video on the 31st, you'll see that processor fly up to 1998Mhz in no time...
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George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

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Now that I've added 2x256MB to my setup to get 1,5GB for Battlefield 2 and all 4 banks are filled, I can get neither the timings nor the frequency as high as I used to.
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Hallo,
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I know that it can see only 2gb, the problem is that you cannot install a total of 3gb because it doesn't boot.
If it could boot, i would still see 2gb ram, however maybe i could use the extra 1gb as ramdisk, which if i create it
now i will have to subtract it from the 2gb that it has.
So the question is can i boot it somehow with 3gb which right now i can't?
Thanks.
Message was edited by: claw

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Link to picture
thank you for looking
Eastham.
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Do you have a charged genuine battery installed and is the cpu operating at normal temps?
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I have this exact same setup, powering a 24" Dell and a 23" apple monitor - but with 4 gigs of RAM as the previous post suggests. It's awesome (I'm opening 10 mp Nikon NEFs on mine, FWIW).
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3gb ram only runs 333mhz

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