AGP/PCI limits on a K8T800 board without bus locks

[jpunzel]

Alright, so I got $80 off an Abit KV8 on newegg with an Athlon 64 2800+. It was a damn good deal, but the board doesn't have any type of AGP/PCI lock for overclocking. I'm wondering how high I can push these busses until instability becomes an issue. If I relieve the memory speed bottleneck with DDR500, I'm able to run at 239/78/39 without any problems. The CPU doesn't get very hot at all. I have extremely reliable parts, and the only PCI device I have installed is a SB Live. My main concern is the corruption of my filesystem from the HDD controller running too fast. Can I go even further?

Basically, my question is this: What is the maximum stable AGP/PCI bus speed in my situation?

 

[glugglug]

Most PCI cards (other than Creative labs crap like your SBLive) will go to at least 37.5MHz without issues. Some will handle 41.66Mhz but I've had trouble with SCSI cards with PCI that high. My Voodoo1, S3 Virge, 3COM 905, and all ISA cards were fine with PCI running at 41.66 on my old Asus P2T4.

AGP cards on the other hand, are extremely finicky overclockers. Most AGP cards will not handle an overclock of more than about 10%. Maybe if you force AGP2x rather than AGP4x or 8x mode in the BIOS you will have better luck with this....

 

[Shimmishim]

from what i understand, the nvidia cards can go out of spec (frequency) more so than the ati cards...