Max RAM in 0G254H Motherboard?

mic1983 · Mar 25, 2014

Im trying to max out the performance of my machine, before shelling out on new rig.

I currently have;

XPS Desktop 430 - Intel® Core 2 Quad Processor Q9450 (2.66GHz, 1333MHz, 12MB cache) with X48 Chipset (ICH9R).
Motherboard - 0G254H

The motherboard spec says it supports 1333Mhz DDR3 Ram but the Intel page specifies the x48 Chipset supports 1600Mhz DDR3 Intel XMP. Can anyone confirm which is correct?

I have purchased 1333Mhz RAM, but have since noticed that the Chipset allows me to utilize 1600Mhz Intel XMP. Can anyone confirm this, and would it make sense to buy the faster RAM. Would the difference between the two be noticeable?

JOHNN93 · Mar 25, 2014

it says it supports a cpu with a front side bus running at 1600 mhz you will see at the memory specification section it supports 1333 mhz ddr 3
http://ark.intel.com/products/35143/Intel-82x48-Memory-Controller-Hub
i do not see intel xmp support

mic1983 · Mar 25, 2014

My understanding is that the X48 Chipset boosts its to run 1600Mhz XMP DDR3.

According to the below

http://www.tomsnetworking.de/uploads/media/Intel_4Series_Chipset_Chart.pdf

the second page on left suggest the x48 chipset as being able to have 'DDR3 Intel XMP 1600 MHz or DDR3 up to 1333 MHz, DDR2 up to 800 MHz'

JOHNN93 · Mar 25, 2014

the official intel page does not say that the chipset supports 1600 mhz ram.
with the processor you have even if you tried it it would run as 1333 mhz.

mic1983 · Mar 25, 2014

Another question I have is i plan on installing the 2x4gb tonight, removing the 4x1gb sticks i have. My mobo states it only supports 8gb max, but ive read on forums that is inaccurate, with some reporting it can take up to 16gb. Would leaving 2x1 gb as well as the new 2x4gb sticks jeopardise my pc, or would it just beep saying no. Also, is there an order as to which slots i put the RAM in. 4-4-1-1 or 4-1-4-1?

JOHNN93 · Mar 26, 2014

best is to put 4-0-4-0 even if you install the older ram and it gets to boot your fast rams should automaticaly run the same speed as the slow ram installed.based on intel the mmc intergrated in the chipset supports up to 8 gb.
the worst case will be the the system will not boot.on the motherboard there should be lables near the memory slots like a1 a2 b1 b2 instaling the memory in a1 b1 should make the memory run in dual chanel.8 gb is ok.

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Max RAM in 0G254H Motherboard?

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