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ECS KM400-M Deluxe PCB 1.0A and 1.0B

Posted: Sun May 09, 2010 9:18 pm
by rogon3
I have ECS KM400-M Deluxe PCB 1.0A mainboad.

And there is ECS KM400-M Deluxe PCB 1.0B.

Those 2 mainboads have the same chipset, layout, cpus, and use the same drivers.

But PCB 1.0A has less stable than 1.0B and they use different BIOS versions.

I want to flash the 1.0B into 1.0A for more stablity and perfomance.
Is it ppossible?



This is the lateest BIOS in 1.0A

BIOS Name BIOS for KM400-M Deluxe(PCB:1.0A)
Version 1.0b
Release Date 2003/11/27
File Size 256KB

And This is PCB 1.0B's

BIOS Name BIOS for KM400-M Deluxe(PCB:1.0B)
Version 1.0e
Release Date 2004/08/18
Update Description 1. Support DDR 400 in KM400 chipset
2. Support AMD new Sempron CPUs, L2 cache is 256K
3. Support KM400M B version
4. Updated the New VGA BIOS
Special Note
File Size 260KB <--- early versions have 256KB

Re: ECS KM400-M Deluxe PCB 1.0A and 1.0B

Posted: Sat May 15, 2010 7:40 pm
by edwin
Well, if you could use the 1.0B on the 1.0A board, why release seperate versions?

The answer is: no.

Re: ECS KM400-M Deluxe PCB 1.0A and 1.0B

Posted: Fri Aug 10, 2012 4:42 pm
by tomaharaja
I think what he is asking is if he can update the bios to V1.0b and the answer is yes. I just did it to my KM400-M 1.0a
then after updating to 1.0b, i tried 1.0e and it worked as well. I had to load optimized defualts in the bios to boot.
Now i can run 2x1GB of PC3200 ram.

The answer is: YES!

Re: ECS KM400-M Deluxe PCB 1.0A and 1.0B

Posted: Fri Aug 10, 2012 9:34 pm
by tomaharaja
To make myself clear i thought i would post again.

I have an ECS KM400-M PCB 1.0A and i updated the bios from version 1.0a to the 1.0b version found on the KM400-M 1.0A bios update page.

Then i updated to the 1.0E version found on the KM400-M 1.0b bios update page and insalled 2x1GB sticks of Crucial PC3200 ram and
the computer is running fine.

Re: ECS KM400-M Deluxe PCB 1.0A and 1.0B

Posted: Tue Aug 14, 2012 9:44 am
by edwin
Interesting. So you are running DDR400 memory at 400MHz FSB? What CPU?