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ASUS P5E and 2 pairs of TWIN2X4096-8500C5D


tlon

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Dear Ramguy -

 

I recently moved from an nvidia mobo to a ASUS P5E Deluxe, and moved my 8 GB (4 sticks, 2 matched pairs) of TWIN2X4096-8500 RAM (version 2.1, 2.1v, 5-5-5-15 timing) to the ASUS mobo.

 

After a few days of running, I started seeing the telltale signs of memory corruption and ran memtest-x86 to discover a horrific number of errors.

 

This board's bios has quite a bit more detail than I am used to on stock systems; I've set the DRAM voltage to 2.1v and the timing to 2n 5-5-5-15 at DDR2-800 speed, but memory errors haven't gone away.

 

Can you please advise on A) known issues with this board and B) optimal or tested settings for this particular board. I'm deeply afraid that I may have bought into a board that is unstable with 4 sticks of 2GB dual-channel DDR ram.

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Note: There is no such thing as Dual Channel memory, as this is a property of the memory controller in how it handles memory. This is why you can place memory in different slot configurations on a motherboard and it will register as single or dual channel.

 

Test one stick at a time in the same slot using memtest86+ v4.00 (link on the left).

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With 4 modules I would suggest setting the memory frequency at DDR667 or DDR800 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.
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