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Problems Running 1066MHz Memory

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Last response: in Memory
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March 17, 2010 6:04:54 PM

Hi all,

I have the following system and have issues running my memory at 1066MHz:

- AMD Phenom II x4 965 (3.4GHz - Not Overclocked)
- Asus M4N78 Motherboard
- 4GB (2x2GB) Kingston HyperX 1066MHz DDR2 Memory (PC2-8500)

I have tried the following settings:

Memory Clock Mode - Manual
Memclock Value - 533MHz (x2 - 1066)
DRAM Timing Mode - Both DCT0 and DCT1
CAS Latency (CL) - 5 CLK
tRCD - 5 CLK
tRP - 5 CLK
tRAS - 15 CLK
Memory OverVoltage - Auto

However, about 5 minuted into using Windows (Windows 7 64 Bit Ultimate) I am given the BSOD. Everything is fine when using the auto settings for 800MHz.

Here is a link to the motherboard manual so that you can see the available settings in the bios:
http://pserver.x10hosting.com/E4378_M4N78.pdf


Many Thanks

RHINO89
a c 163 } Memory
March 17, 2010 6:52:13 PM

Hi, in the same manual that you post, you can find the answer to your problem.

Page 1-15

Due to AMD CPU limitation, DDR2 1066 is supported by AM3 / AM2+ CPU for one DIMM per channel only.When two DDR2 1066 DIMMs are installed, all DIMMs run at 800MHz frequency by default for system stability
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March 17, 2010 8:59:35 PM

saint19 said:
Hi, in the same manual that you post, you can find the answer to your problem.

Page 1-15

Due to AMD CPU limitation, DDR2 1066 is supported by AM3 / AM2+ CPU for one DIMM per channel only.When two DDR2 1066 DIMMs are installed, all DIMMs run at 800MHz frequency by default for system stability


Yes but the two DIMMs are in two different channels.
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a c 163 } Memory
March 17, 2010 9:11:50 PM

You also need change the voltage of the RAM.
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March 17, 2010 9:14:24 PM

saint19 said:
You also need change the voltage of the RAM.


What do I change it to?
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March 18, 2010 7:20:17 PM

Any suggestions?
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a c 163 } Memory
March 18, 2010 8:20:37 PM

^You change the voltage, in the same menu that you change the CL of your RAM.
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March 19, 2010 4:24:44 PM

saint19 said:
^You change the voltage, in the same menu that you change the CL of your RAM.


I asked what to change the values to - not where...
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April 10, 2010 4:29:37 PM

anything...
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!