AT7 PCI divider

[Andrew Scott]

I'm sure I posted this last night, but I can't see it, so I will post it again, sorry for the duplication if you can all see the previous post.

Andrew

Hi all,

I have an early AT7, and I am trying to clock it. I'm meeting with OK results so far, I can get the FSB to about 145 (thats memory running at ~
178) but not any further. I think that it is my PCI devices (have most of the onboard stuff turned on, +a sound blaster and a PCI GF2).

so here's the question - does my AT7 support a PCI divider of 5? From what I can gather the motherboard will automagically use the higher divider when the FSB gets to 166?? My chip can't manage that, and I was hoping if any one could confirm this for me before I deconstruct my PC to unlock the chip.

any one any experiance with this?? Its the only way I can think that reviewers managed to get this board with memory running at over 200MHz, but I could be wrong.

cheers,
Andrew

 

[Wes Newell]

On Thu, 17 Jul 2003 18:17:10 +0000, Andrew Scott wrote:

so here's the question - does my AT7 support a PCI divider of 5? From what I can gather the motherboard will automagically use the higher divider when the FSB gets to 166?? My chip can't manage that, and I was hoping if any one could confirm this for me before I deconstruct my PC to unlock the chip.

Well, I don't have an AT7, but the manual shows the ratio can be set to 3, 4, or 5. But you must use user defined speeds, not the defaults.

 

[Andrew Scott]

k, ta. Its just that playing with that setting in the bios seems to make no differance to my benchmark scores, so I'm not convinced it does anything??

Andrew

"Wes Newell" wrote:

On Thu, 17 Jul 2003 18:17:10 +0000, Andrew Scott wrote:

so here's the question - does my AT7 support a PCI divider of 5? From
what I can gather the motherboard will automagically use the higher
divider when the FSB gets to 166?? My chip can't manage that, and I was
hoping if any one could confirm this for me before I deconstruct my PC to unlock the chip.

Well, I don't have an AT7, but the manual shows the ratio can be set to 3, 4, or 5. But you must use user defined speeds, not the defaults.

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