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How do I change Memory clock 1333 to 1600


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4 replies to this topic

#1 bigalexe

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Posted 19 September 2010 - 03:22 PM

I have an Asus M4A785TD-V EVO motherboard with 2x2GB DDR3-1600 GSkill RAM on it. It is apparently an issue with this RAM that it sometimes identifies itself to the system as the slightly slower variant DDR3-1333.

I have not overclocked before, I have no real intentions to in the future. However I paid for DDR3-1600 memory so I would like to make it run like it. Can someone explain (at drunken monkey level) the steps needed and the exact numbers to look for in order to change the settings in the BIOS to make this happen?
AMD Phenom II X6 2.8ghz
8GB DDR3 RAM
XFX ATI Radeon HD6850 1 GB DDR5, 26" Widescreen HDMI
500GB + 80GB HDD
Windows 7 Pro, Mozilla Firefox, AutoCAD 2011, Solidworks 2009
1/19/2012

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#2 dc3

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Posted 19 September 2010 - 05:51 PM

How about posting the make and model of the module/s? :thumbsup:

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#3 dpunisher

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Posted 19 September 2010 - 06:24 PM

Generally you will get the best performance running the memory 1:1.

The 1600 is likely the "XMP" profile. Not sure on AMD systems but you select the XMP profile in the BIOS, set voltage accordingly, and boot up. Be sure to bench the system before and after to see if performance has changed. Sometimes running looser timings at 1600 is little improvement over 1333 with tighter timings, especially if the ratio is not synched.

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#4 bigalexe

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Posted 19 September 2010 - 06:44 PM

Out of curiosity why does the memory module matter? I listed my motherboard which is where the BIOS is. Isn't the speed all that matters for the timing?

Model is as follows, information taken from Newegg Spec sheet. I should also note this is my only sticks in the PC, there are no other DIMMS that are holding the system back.

G.SKILL Ripjaws Series DDR3 1600 (PC3 12800), Model F3-12800CL9D-4GBRL
2x2GB Configuration
Timing: 9-9-9-24-2N
Voltage: 1.5V
ECC: No
Unbuffered
Dual Channel
AMD Phenom II X6 2.8ghz
8GB DDR3 RAM
XFX ATI Radeon HD6850 1 GB DDR5, 26" Widescreen HDMI
500GB + 80GB HDD
Windows 7 Pro, Mozilla Firefox, AutoCAD 2011, Solidworks 2009
1/19/2012

#5 hamluis

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Posted 20 September 2010 - 10:39 AM

Board Specs

Looking at the Memory Standard, I interpret that as saying that the board must be overclocked...to run the RAM at that speed. I could be wrong...again :thumbsup:.

Louis




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