MSI P35 Neo2 - setting correct frequencies?

[mrkocol]

I have an MSI P35 Neo2 board with an Intel Q9550 Quad Core CPU. The board is a year old, the CPU I just recently purchased to replace a 2.33GHz E6600 Duo Core. I am trying to set the correct values of this new setup without overclocking:

- FSB frequency: 1333Mhz
- CPU speed: 2.83Ghz
- Memory frequency: 800Mhz

When I popped in the new CPU and changed nothing else, everything seemed to be running okay but I noticed the BIOS was reporting the current CPU speed as 2333 MHz. I eventually changed the FSB frequency to 400, kept the multiplier at 7 and changed the memory ratio to 1:1 which got me the CPU at 2.80Ghz (close enough) and the memory still at 800Mhz. However, once I booted into Windows XP, I ran CPU-Z and it reported the FSB as 1600Mhz.

How do I get everything to be at the proper frequencies? I should also mention that the board's JB1 and JB2 jumpers are set to 333Mhz, as opposed to their factory default of 200Mhz. Do I leave the BIOS values as-is and change JB1 and JB2 to their default, or something else entirely? I don't know the best way to approach this.

Thanks in advance for your help.

 

[faster3200]

Well the rated fsb is your fsb (400 in this case) x 4 so, 1600mhz is correct. The standard multiplier for the Q9550 is 8.5 so, 334x8.5 should get you back to the settings you want. To get the mem to DDR2 800 you just have to adjust the divider.

You may have to flash the bios to a more recent one in order to get tings working properly though.

 

[rockbyter]

I be you'll be fine to leave the multiplier topped out (on auto) and push the fsb up accordinly. any of todays heatsinks should be fine on that, and be stable.

 

[mrkocol]

Thanks a lot for the advice. Looks like flashing the BIOS is probably what I need to do because I currently only have 6, 7 and 8 as the multiplier options. It was previously defaulting the multiplier to 7 when on Auto. Just to be safe, for now I used 333 x 8 with a memory ratio of 1:1.2.

 

[mrkocol]

Well, I just flashed my BIOS to version 1.9. While it worked and it expanded the multiplier options, it still doesn't go beyond 8. I have now something like 6, 6.5, 7, 7.5 and 8. 8.5 or 9 would be ideal, but perhaps the Neo2 board won't ever support that? (Mine is just a plain Neo2, not Neo2-FR or any other type.)