AGP/PCI lock on AK86-L????????

[Bor]

overclock info

This overclock was stable in 3dmark, prime95, and UT2004 demo.

I noticed that the bios had a problem where it did not lock the memory frequency, which is the reason most benchmarks show the max FSB being low.

Since I have ddr400, overclocking the fsb overclocked my ram and which made my system unstable.

I set the memory frequency at ddr333 and manually set the memory timings for ddr400 to fix this problem.

At 245 fsb, the resulting memory frequency was 406 with ddr333 selected in bios.

I think perhaps the AGP/PCI are a function of the memory frequency and not the fsb.

Can you test for this using the new equipment?

I really dont think it is possible for me to run 445 fsb w/o a hitch with two hard drive, a dvd drive, pci tv tuner, and an agp card w/o some kind of reduction of PCI/AGP.

 

[Technonut]

Read This....

The big surprise here is that none of the current chipsets for Athlon 64 have a working PCI lock, whether they claim one or not. This was a complete surprise and our first inclination was to throw out the results, since speeds on the Athlon 64 are derived in a very different way with Hypertransport. However, oscilloscope results and tests elsewhere pretty much support our findings. There does not appear to be a working PCI lock on any current chipsets for Athlon 64. Certainly, this contributes to the poorer overclocking that we have seen on A64 inasmuch as on-board component frequencies and AGP bus are related to PCI bus

EDIT: BTW, welcome to the Forums..

 

[Bor]

I read that, which is why I am so confused

I was proposing that that the PCI/AGP was a function of memory frequency on the AK86. I just wanted them to test that.

They got the fsb to 252. I really think this is impossible w/o some sort of reduction of AGP/PCI.

 

[shiftomnimega]

This is interesting. I have nothing intelligent to say, but hopefully someone else might.