Overclocking AGP/PCI bus

[microfire]

When overclocking a system one would want to tap into everything they can get from it.
Seems that most people insist on locking their AGP/PCI bus down to 66/33. I know there is a little extra performance to be gain here, especailly on the PCI bus. I enjoy the increase in harddrive performance.
Now saying that, the AGP usally handles a reasonable amount of extra mhz so that really only leave the PCI to tend to. What would be a safe overclock of extra mhz above 33 on the PCI bus. My main concern here would be the relability of harddrives without comprimising anything like lost of data or damage to the drive.

 

[Grandpa Dan]

Both the agp and the pci are picky ******* and set in their ways. They meant to operate at 66/33 and by god thats where they want to stay....Thats the best way I know how to explain it.

 

[elv]

It really depends on the hardware.
Mobo, harddrive and card.
I am running 38/76 and havent had problems

 

[Jarhead7236]

i've read that ati cards are more sensitive to higher agp freqs than their nvidia counterparts...so i may put in a 5700ultra in my KT600 board(s)...

 

[johan851]

Yeah, my Radeon freaked out above 72mhz. Couldn't even break 180fsb with my KT400 board...thank goodness for nForce2!!

 

[microfire]

Tryed 74/37 with my new intel 865 chipset board and my sata harddrives would not boot. Backed it down to 70/35 and then no boot. In the end I had to reset the CMOS just so I could press delete to get back into the bios.
Funny though that I could run 74/37 all the same hardware with my old intel 845 chipset board all day long without a problem.

 

[grunid]

Using 70/35. No Problems. Could set at "fixed" on this SR7-8X.
Doing "mild" O/C on P4 2533Mhz to 2668Mhz with fsb at 140
therefore the AGP at 70 and the PCI at 35.