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how to check CPU on my laptop?

By kulaw1z · 4 replies
Apr 22, 2005
  1. Hello,

    I have just purchased an IBM laptop. I do not know much about computers, except for the basics.
    The computer was supposed to have 400MHz FSB - is this the same as CPU? How can I check that number in windows?

    When i look at the properties of "my computer", I see a number saying 209MHZ - what is that number representing?

  2. RickM

    RickM TS Member Posts: 27

    You can get a ton of informtion about your laptop or any computer if you download SysoftSandra... just click on the link below:

    The version you download is not the full version... some modules will not work but will give you the information you are looking for. After you download and install the program, click on the Icon... Under "Information Modules" click on Bios and CMOS information....the eighth line down Rated Speed/FSB will give you the info. Example: (3000Mhz/2 X 400Mhz) is telling you the CPU is 3.0Ghz and the FSB is 800 (2X400=800).
    The full version is a very in depth version and is $39.00 US.... Is absolutely worth it if you want to spend the $$.
    Good Luck.
  3. RickM

    RickM TS Member Posts: 27

    FSB ... (Front Side Bus) What does it mean ?

    Front-Side-Bus (FSB) is a term describing a Processor (CPU)-to-system memory data bus. It has also known as CPU bus speed, external CPU speed, memory bus and system bus. It is the speed that the CPU communicates with RAM (memory). The front side bus on a computer connects the processor to the north side bridge, which comprises the memory bus, PCI bus and AGP bus. In general, a faster frontside bus means higher processing speeds and a faster computer.

    For example the Pentium 4 has a “400Mhz Front Side Bus”, but it is in fact 100Mhz ‘quad pumped’. This means that data is transferred twice per clock cycle, on the rising and falling edge (like DDR memory which will be mentioned later), and also transfers two bytes of data at a time to effectively give four times the throughput of a 100Mhz front side bus. How fast your processor runs at is determined by applying a clock multiplier to the frontside bus speed. For example, a processor running at 550MHz might be using a 100 MHz FSB; this means there is a clock multiplier setting of 5.5, thus the CPU is set to run at 5.5 times the MHz speed of the front side bus: basically equating to 100 MHz x 5.5 = 550 MHz. Athlon processors are available in multiples of 100MHz, 133Mhz, 266MHz 333MHz and now with the AMD K8 3200+ and AMD Athlon64 FX-51 1600MHz FSB.
    Some motherboards offer the ability for the user to manually set the clock multiplier and FSB settings by changing jumpers. CPU and especially the "Big Name" computer manufacturers usually "lock" the preset multiplier setting into the chip or locked in the motherboard BIOS meaning manually-set multiplier settings are ignored in favor of the preset multiplier. When choosing a FSB speed for the CPU you chose, be aware that you'll need to purchase memory capable of this faster speed. Pushing the front-side bus to 110 MHz means you are also pushing your memory, be it PC100 (or higher, i.e. PC133), to 110 MHz. Typically a FSB today is dual or quad channel, meaning a FSB speed advertised as being "333 MHz" may actually be 166 MHz dual channel, effectively meaning 333 MHz of speed. CPUs work with front side bus speeds ranging from 133 MHz dual channel (266 MHz effective) to 200 MHz quad channel (800 MHz effective).

    I hope this helps too.
  4. RickM

    RickM TS Member Posts: 27

    Hi Again,
    To check out your CPU.

    Download and install CPU-Z
    Just click on this link for the "DOWNLOAD"

    It will tell you "ALL" you want to know about your CPU.
    I hope the info and links help you out and give you the information you are looking for .
  5. IronDuke

    IronDuke TS Rookie Posts: 856

    Computer info

    My preference for system info is Everest. To be found here: Everest Home Edition

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