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Asus M2N32 SLI Dlx, Bios 2205 and 6400C4 = Borked


Rambler

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Hi,

 

I've had my M2N32SLI Deluxe running bios 2001 with 4 x 1Gb sticks of 6400C4 RAM running stable for quite some time. The RAM in this configuration was manually set to 4-4-4-12-22-2T at 2.1v with an EPP profile of 'Optimal'.

 

I decided to upgrade the latest 13/03/2009 v2205 bios and I cant get a stable system.

 

Basically the system hangs on the bios screen and wont post.

 

I know its a ram related issue because pulling out a stick of ram allows the system to post.

 

I've tried setting the RAM manually with EPP disabled, setting it to auto with EPP enabled, and another number of combos and nothing works with this bios.

 

You can read my woes on the asus forum http://vip.asus.com/forum/view.aspx?id=20090323064904690&board_id=1&model=M2N32-SLI+Deluxe&page=1&SLanguage=en-us

 

Ive read that you can only run 4 sticks of ram on DDR2 667 to get a stable system under this bios and EPP profiles dont work with 4 or more sticks of RAM.

 

Is this right?

 

Any other pointers?

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Perhaps I can help you with this:

http://www.asktheramguy.com/forums/showthread.php?p=394612#post394612

 

I've postet there pictures of my BIOS settings (system stable now).

 

Additional information: With 4 x 1 GB I could never use timings like 4-4-4-12-22-2T (not with older BIOS versions and also not with the latest version 2205). With 2.1 volt my monitor was black and I have had to reset the BIOS per jumper. With other timings I could pass the BIOS but I got the message, that my Vista64 is not able to boot or there would be no system available.

So my last solution was to set 5-5-5-18-2T @677 MHz @1,9V and I reduced the voltage of my cpu from 1,3 to 1,2V due to alarming temperature values (over 90°C in idle mode. Now I have 42°C). Notice: Not every CPU can run with lower voltage!

The only succes with BIOS 2205: Now I can enable SLI-Ready memory "optimal". In earlier BIOS versions I couldn't enable this feature.

 

cu Mike

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  • Corsair Employees
With 4 modules I would suggest setting the memory frequency at DDR667 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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  • 1 month later...

Im starting tro wonder if these responces from Ram guy are electronically generated responces cuz they all have the same wording.

 

Mine is doing fine now since i got it to run at 800 now but im sure ASUS will have a followup bios to address all the funny ram issues with 2205.

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