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  1. #1
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    Default What speed is my memory running at so I can upgrade it pleas

    I am very very confused.

    I have a MSI 7046 motheboard, it is a 3.06GHz Pentiunm 4 with a 533MHz FSB. 512Mb RAM

    I want to add another 512Mb RAM to my PC.

    I have used PCwizard, Everest, and the Crucial scan tool, and looked in Bios and it says PC3200

    Is the current RAM in my PC running at PC3200? or is it running at the slower PC2100 (or even PC2700).

    The reason I ask is that I have a spare 512Mb stick of PC2100 in a old PC, I didnt want to put it in as thought it would slow down too much and not match the bus speeds or whatever.

    Can someone please help, what speed is the factory built memory running at?

    if you download CPUz (http://www.cpuid.com/cpuz.php) This is what it states on the memory page (sorry cant find how to insert an image)

    Frequency: 133MHz
    FSBRAM 1:1

    on the CPU page it states
    Core SPeed 3059MHz
    Multiplier x23
    FSB 133MHz
    Bus Speed 532MHz

    If the current 512Mb speed is only running at PC2100 (although the actual stick can run at PC3200) I may as well use the stick I have and not have to buy another one.

    Basic question is: what speed is the current 512Mb stick inside running? PC2100,PC2700 or PC3200?

    If its at it full speed of PC3200 then I need to buy anohter one, if its running at PC2100 beacuse of the speed of the FSB anyway, I will install my spre PC2100.

    hope someone can put me out of my misery
    thanks
    Andy

  2. #2
    Member Spyware Fighter Grim322's Avatar
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    It can be confusing, but it looks to me like you have pc 3200 running at a slower speed. You should be able to change the speed in your BIOS. PC 3200 should be able to run at 200 mhz, but can run at 166 or 133. If you leave it at 133, the pc2100 might work, won't know until you try.
    So, try the pc2100 to save money and continue at 133mhz
    If it doesn't work, check your BIOS to bump up the memory to 200mhz (or at least 166), then add a new piece of pc3200.

    Charlie

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    thanks for the reply, I cant find a setting in the bios to do just the memory speed, without affecting the CPU speed as well. I dont want to overclock either.

    so I am stuck at a memory speed of PC2100, thats no problem really, as I now can fit the RAM I already have.

    Is there a real world jump in speeds anyway of I had the RAM running at PC3200 speed?

    would I see a difference day to day? or is it just in gaming or something?

    thanks
    Andy

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    Member Spyware Fighter Grim322's Avatar
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    Look in the BIOS again, there should be something having to do with DRAM/CPU clock. Click on it and see if there is something for DRAM clock. You should have an option to set manually or auto (SPD). Select manual and you should have an option to set to 166 or 200. I have a computer that should run pc3200, I have pc3200 installed, but it runs more stable at 166 which is fine with me. Charlie

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    nope cant find a setting, its all greyed out, all it says is 3.06GHz pentium 4

  6. #6
    Member Spyware Fighter Grim322's Avatar
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    What BIOS do you have? It should say at start up- Awards, Phoenix, AMI or something like that. Maybe we can figure out where the setting is. Charlie

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    its a OEM board, a MSI 7046, with a phoneix BIOS... but anyways...

    ok installed the extra 512 stick of PC2100 RAM to my motherboard which has an existing 512Mb stick of PC3200 RAM lthough running at 266MHz as determined in other posts ok?

    I ran another CPUz and it has now changed , basically the frequency has dropped from 133MHz to 106MHz and the FSBRAM ration has changed from 1:1 to 5:4.

    I am now totally and utterly confused again.

    I thought we had determined that the existing PC3200 RAM was underclocked with respect to the FSB at 133MHz. I now put the PC2100 stick in and everything changes, even though this should be running at PC2100 (266MHz speed)

    please please help and explain
    thanks

  8. #8
    Member texsized's Avatar
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    This is a great utility to identify ram speed and the manufacturer ctspd v0.9.2
    get it here

    http://www.woundedmoon.org/win32/ctspd092.html
    we are created with an equal opportunity to be unequal.

  9. #9
    Member texsized's Avatar
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    This is a great utility to identify ram speed and the manufacturer ctspd v0.9.2
    get it here

    http://www.woundedmoon.org/win32/ctspd092.html
    we are created with an equal opportunity to be unequal.

  10. #10
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    Hi - I hope this doesn't confuse the issue further. It may be of general interest.

    System RAM speed is controlled by bus width and bus speed.
    Bus width refers to the number of bits that can be sent to the CPU simultaneously,
    Bus speed refers to the number of times a group of bits can be sent each second.
    A Bus cycle occurs every time data travels from memory to the CPU.
    For example, a 100-MHz 64-bit bus is theoretically capable of sending 8 bytes (64 bits divided by 8 = 8 bytes) of data to the CPU 100 million times per second.
    Your MSI 7046 board has a 64 bit(8Byte) bus width which equates to, theoretically, 800MB’s per second at 100Mhz bus speed.
    Your memory speed (frequency), from CPUz is 133Mhz.
    Therefore, theoretically, your RAM speed is 800 x 133% = 1064MB per second.
    I know everything about nothing, nothing about everything and precious little about the bit in between.
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