Memory speeds

[Jikusha]

I have 512 mb of OCZ pc3200 ddr400 but it only runs at 166.2 mhz when i check in cpu-z. I have a pentium 4 2.4C 1mb level 2 cache processor

 

[Mik3y]

that's prob because your cpu runs off a total fsb of 533mhz. 166mhz x 4 = 533mhz. i believe you have the 2.4A GHz prescott.

 

[Jikusha]

hmmmm cpu-z says that its a 2.4 pentium 4, fsb 533 and revision C stepping 3 . and also, 133mhzx4=532 not 166

 

[imported_Computer MAn]

Originally posted by: Mik3y
that's prob because your cpu runs off a total fsb of 533mhz. 166mhz x 4 = 533mhz. i believe you have the 2.4A GHz prescott.

 

[Jikusha]

... 166x4 is NOT 533, it is 644. 133x4=533

 

[MDE]

Originally posted by: Jikusha
... 166x4 is NOT 533, it is 644. 133x4=533

Then the memory is running faster than the FSB. Check your BIOS to make sure your settings are correct.

 

[imported_AndyT]

You didn't say what motherboard you have, but you will need to set the memory buss speed to 200mhz or 2:3 (not sure what you will see in the BIOS) to get the memory up to 200mhz.

Also the C model P$ only has 512kb (1/2mb) L1 cache. The Prescott E model have 1mb.

 

[stevty2889]

pentium 4 boards won't run the pc3200 memory at 200mhz unless you are running 200mhz fsb. Since you are running at 533mhz, you can't set the memory to run at 200mhz.