Hardware Question

Mansur, Warren warren.mansur at hp.com
Thu Apr 8 09:55:01 EDT 2004


> I recently got an Athlon 2000 and KM2M motherboard for my MythTV 
> project. Already having SDRam I decided to stick with it. 
> It's 100mhz ram.
> 
> When I set the 100mhz/133mhz FSB jumper to 133mhz it seems 
> like it boots 
> (no error beeps) but I get no video either from the onboard video or 
> from the AGP card I put in. If I set it to 100mzh it will 
> boot fine, but 
> my processor runs slower.
> 
> I thought that the ram freq should be separate from the CPU 
> freq, but I 
> could be wrong.. that's why I asking.

You have two things that determine the speed of the CPU, the bus speed and the multiplier. For example if your bus speed is 100mhz and your cpu has a multiplier of 2, then your CPU clock speed runs at 200Mhz.

So if you decrease the speed of your bus you'll decrease the speed of your CPU.

I'm not so familiar with RAM, but I _believe_ that you'd need to use a 100 Mhz bus for 100 Mhz RAM. Having said that, it depends upon the actual hardware (in some cases, RAM speed and bus speed differs).

One source: http://www.hwupgrade.com/overclock/cpu/index3.html

Regards,

Warren



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