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Upgrading NVIDIA nForce 680i

my PC specs. as attached file. i would like to upgrade PC with minimum fees. i was try to fix memory 800 mhz is not working. where current memory 2*2 OCZ PC2-8500 Platinum edition.
please advise
HALA-PC.txt
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TechnoFunc
Asked:
TechnoFunc
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1 Solution
 
_Commented:
At first glance, it looks like you need to up the voltage on the ram.
CPU-Z says they are at 1.8v, but the specs for the OCZ says 2.1 - 2.3v. And even thought you are not running them at the rated 1066mhz, you still need to get that ram to at least 2.0v to run at 800mhz.

If that Winbond motherboard will not let you do that, you will need to get different ram with a lower voltage requirement.
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TechnoFuncAuthor Commented:
what i can do to upgrade ram to 8 GB and what is better Ram spec and brand
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CallandorCommented:
This is Crucial's recommendation for your EVGA 122-CK-NF68 motherboard: http://www.crucial.com/store/listparts.aspx?model=nForce%20680i%20SLI%20(122-CK-NF68-AR)&Cat=RAM

1.8v is the correct voltage for the RAM.  You can get a pair of DDR2-667 4GB modules, but they are very expensive ($170 at newegg http://www.newegg.com/Product/Product.aspx?Item=N82E16820148274).  Your current configuration of 4GB total is good.

What exactly is wrong, that you want to upgrade?  The cpu, an E6600, can be upgraded to a quad core Q6600, but are you cpu limited?
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TechnoFuncAuthor Commented:
when running Oracle E-business Suite on Linux VMware the Performance go down and ram appear as full. that is why would like to upgrade the PC.

your recommendation to get pair DDR2-667 4GB is not optimum solution because i think current ram is better.

if the ram upgraded to 8 Gb may be better, what's your opinion for two kits of
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104073
and install Win 7 64 bit
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CallandorCommented:
Your current RAM is rated for higher performance, but your E6600 cpu runs at a 1066 front side bus, which only requires DDR2-533.  The RAM will not run faster than what the cpu sets the bus to.

I mention 2x4GB because there is some risk that mixing different RAM may cause instability, depending on how your motherboard handles them, and whenever you populate all 4 slots, you introduce a greater electrical load on the RAM circuit, again introducing instability.  However, two of the kits you mentioned will be cheaper, and if you are constrained in your budget, that may be the way to go.

More RAM helps VM setups, but I wonder why all your RAM disappears, unless Linux VMWare deliberately does this.
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TechnoFuncAuthor Commented:
as i understood i should replace current memory with new kits 2*4 DDR2-533. is it correct?
and 4*2 is not recommended .
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CallandorCommented:
You have understood correctly.
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