Question about MSI K8MM-ILSR Motherboard

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Try to install 2gb PC2700/DDR333 memory on MS-6741 motherboard


I try to install 2 X 1GB PC2700 184 PIN 333 MHZ DDR RAM on a K8MM-ILSR (MS-6741) motherboard With the new memory the computer is working but it became unstable (frozen screen, windows errors..) Do I have to change the bios setup? My old ddr RAM was 2 X 512MB PC3200 184 PIN 400 MHZ. I have flash the AMI BIOS to version 3.7.

Thank you.


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  • lucbourdages Feb 27, 2009

    Hi jell587 and djmadrik,

    Thank you for your quick answers. The part number of the memory stick is 1GBUFURTULAA. I also verify and the memory is set to auto in the bios, so the problem is still the same.

    Thanks again


  • lucbourdages Feb 27, 2009

    Hi jell587,

    Thanks again for helping me with my problem. I bought this RAM on ebay ( )

    Here are the spec given by seller:

    Product Details:

    184-pin unbuffered DIMM

    • Density: High

    PC2700 333FSB

    2.5 Volts

    • 6 Layer unbuffered

    • CAS Latency 3

    • 4 Bank

    • Off-chip driver (OCD) impedance adjustment, and on die termination (ODT)
    Technical Information:

    Memory Size:
    1GB DDR 184 Pin

    Number: 2 x 1GB

    Memory Speed: 333Mhz

    More Information:

    Non ECC

    Non Registered


    6 Layer

    Non Parity

    Physical Characteristics:

    Form Factor: 184-pin DDR, Gold Pin, Green PCB

    Warranty: Life Time Manufacturer warranty

    • Performance: PC2700

    • Dual Channel ready

    • 2.5 Volts

    • DQ DQ Burst Frequency: 333MHz

    • Inputs and outputs are SSTL-18 compatible

    • CAS latency 3.0


    • SDRAM have 4 internal banks for concurrent operation

    • Differential clock inputs

    • Data is read or written on both clock edges

    • Bi-directional data strobe with one clock cycle preamble and one-half clock post-amble

    • Address and control signals are fully synchronous to positive clock edge

    • Programmable Operation:

    • Burst Type: Sequential or Interleave

    • Burst Length: 4, 8

    • Operation: Burst Read and Write

    • Auto Refresh (CBR) and Self Refresh Modes

    • Automatic and controlled precharge commands

    • Serial Presence Detect

    • SDRAMs in FBGA Package

    • RoHs compliance
    But I don't know what I have to write on the Bios to make it working fine.

    I already try to put PC3200 400 MHZ but the MOBO don't see it at all as it is written on the user guide (
    The mainboard provides two slots for 184-pin DDR SDRAM DIMM (Double In-Line
    Memory Module) modules and supports up to 2GB memory size. You can install
    PC2700/DDR333 & PC2100/DDR266 modules on the DDR DIMM slots (DDR 1~2).)

  • lucbourdages Feb 27, 2009

    OK Thank you,

    Now I know what to change on the Bios but i don't find the latency (I have AMI Bios 3.31a). I know that it's supposed to be under andvanced chipset features menu but I found notting to set the cas latency.

  • John Elliott
    John Elliott May 11, 2010

    Hey Luc,

    According to these are the memory sticks that are compatible with your unit. Can you post the exact part number of the 1gb memory you have installed so that we can cross reference it?




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Hiya Luc

the problem is with your memory, i have read your post and b4 you was using pc3200 and now using pc2700 have you made sure that the memory is set to auto in the bios as it sounds like it is still set to ddr 400 and not ddr 333

regards Rik

Posted on Feb 26, 2009

  • Richard Ray Feb 27, 2009

    hiya luc

    i notice that you only have 2 dimm slots on your mobo, i know that some boards have issue's with using max memory installed as this causes lock ups and random reboots this a limitation on the chipset



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Hey Luc,

I got a chance to check on that memory part number. Most of the sources that I ran across were outside of the USA (and there were very few of them). Was this memory purchased from an online vendor or over the counter at a brick and mortar store?

Here's the thing - I can't find any listings for this memory module on ebay which is odd because generally you can find anything by punching its part number into ebay and a lot of the time you get more detailed specs on the part thru ebay than you would thru a regular web search. I did determine that the specs you posted were pretty much right but I couldn't get any more advanced specs than what you provided.

You may want to source a diffrent module(s) for your unit using the specs I posted a link to before and going with the PC3200 mods. Just make sure you match the CL and voltage detailed for your machine.

I wish there was a better answer for you but if I can't verify the validity of the memory you're trying to use than I have to recommend going with a different module altogether.

Post back here with your progress on this, I'll be curious to see how it turns out.

Posted on Feb 27, 2009

  • John Elliott
    John Elliott Feb 27, 2009

    In the PC2700 style your machine calls for CL2.5:

    1GB: DDR PC2700 • CL=2.5 • Unbuffered • NON-ECC • DDR333 • 2.5V • 128Meg x 64

    If using PC3200:

    1GB: DDR PC3200 • CL=3 • Unbuffered • NON-ECC • DDR400 • 2.6V • 128Meg x 64

    Note the difference in voltage and latency (CL). The memory you purchased on ebay has a latency of 3 (although it has the correct voltage) when the PC2700 recommended for your mobo is 2.5.

    If any other tech monitoring this thread wants to comment on this please do.



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