incorrect cpu external clock

[Theraven]

My Bios gives me the following message: "During the last boot up, your system hung for an improper cpu external speed setting. Your system is now working in safe mode (Bus: 100Mhz, Dram: 100 Mhz, PCI: 33Mhz) To optimize the system performance and reliability, make sure the cpu speed conforms to the specifications of your cpu"

I have a AMD thunderbird 900Mhz on an ASUS A7V motherboard with PC133 SDRAM. What is the difference between the internal and external speed of my cpu and how may I set them correctly. My motherboard is in jumperfree mode.

 

[DataFly]

The "cpu external speed setting" is the CPU's FSB. Have you overclocked the CPU at all by changing the FSB? If so, set it back to normal (100MHz). You might also want to consider setting the RAM to 100MHz even though it is capable of running at 133MHz to see if that fixes anything.

Does this happen every time you boot? What CPU speed does it show on the screen before loading Windows?

 

[Theraven]

It does not happen when I boot, but when I enter the Hardware setting panel of my Bios. When my computer boots up, the cpu speed indicated is 900 Mhz and no I haven't tried to overclock my brand new and expensive cpu. And I know that my BUS speed is 200 Mhz DDR.

 

[The_Duck]

Your Bus speed is 200 but your FSB should be 100. They are two different things on the athlon based boards. The FSB he is referring to is the Speed in which the ram and cpu talk. On athlons if you are setting the FSB to be 133 then it tries to run the bus at 266. Set the ram as 100mhz. Even though the ram is 133.

 

[DataFly]

So you can boot into Windows without getting forced into the BIOS? I would just ignore the message then, or, preferably, flash the BIOS to a newer revision and see if you still get the message. I'm pretty sure that you should be able to run the RAM at 133 while keeping the FSB at 100MHz, but I've never even seen a BIOS for those boards so I'm not 100% sure.