Just wanted to post this

Nuke

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Nov 13, 2008
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For those of you with ram problems with a AM3 Processor and GSkill DDR31600 and or other types of ram this worked for me and i've been trying to figure it out for a while now.

If you have an AMD CPU motherboard combo, and DDR3-1600 memory, the system should be configured as follows.

There are several ways to reach DDR3-1600, but this is the ideal method:

1. Set DRAM Frequency to DDR3-1333.

2. Set CPU Host/Bus Frequency to 240 (this will overclock the memory frequency to DDR3-1600)

2a. Raising the bus frequency will also overclock the CPU, so if you do not want this, you will need to lower CPU Ratio to your desired frequency. If you do want to keep it, you may need to raise CPU VCore to stabilize the overclock. If you have a Black Edition CPU, then it should be capable of the overclock without any voltage adjustments, but for non-BE's most likely you will need to raise CPU VCore.

3. Set timings to tCL 9 - tRCD 9 - tRP 9 - tRAS 24, or whatever your memory is rated for.

4. Set DRAM Voltage to 1.50V, or whatever your memory is rated for.

There are many different motherboards and memory, but they require the same changes. If you are unsure of what to change, refer to your motherboard user's manual. It will have more information about each option and its purpose.

If the system is slightly unstable, you may need to raise CPU-NB Voltage. This is the memory controller voltage, so raising this voltage can help with stability. Also, if you are using full slots or attempting any overclocking, raising this voltage can also help with stability.

Once these changes are made in BIOS, your system should be stable. For memory above the standard, majority of the time AUTO default settings will not work, so these settings are required for a perfectly stable system.

For DDR3-1600 CL9 kits, you can also attempt DDR3-1333 CL8 (8-8-8-24) 1.50V and this would be just as fast without needing to overclock the system. These are also good settings if you can not get DDR3-1600 to work, and you need fail-proof settings (without overclocking) to test the memory and make sure they are working properly.

m4a89td ram problems Gskill ram was my issue look below for specs. apparently AM3 socket does not like cl7@1600mhz and u have to acheive 1600mhz by raising your FSB which i just did and i played every game in my steam list and no crashes all day i'm happy.
 
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or you could just use the 4x ram divider, and get 1600MHz without needing to up of your HTT clock.
 
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