what is your pci limit when pushing with setfsb/cpufsb from 66/66 or 66/100?

I'm booting at 110 FSB, so PCI is roughly 38MHz. PCI limit is roughly 44 MHz.

Problem is board gets cranky around 117 FSB. Need to get into the 1/4 divider but I don't think the CPU is up to it on air only.

So yor headroom is 32% of a given strap? I thought my board is a crap (having app.40% of headroom)  but seems like I'm too used to TUSL2.

3 hours ago, TerraRaptor said:

but seems like I'm too used to TUSL2.

?

For this time I'm tested only Asus Cuv4x-e and made 161mhz with SDR. Boot at 120mhz, the rest from windows. Vccio didn't help. For me need another volts on NB.

10 minutes ago, GRIFF said:

For this time I'm tested only Asus Cuv4x-e and made 161mhz with SDR. Boot at 120mhz, the rest from windows. Vccio didn't help. For me need another volts on NB.

Was it /4 pci divider action when booting with 120? In other way - are you able to go 161 with +PCI ram?

No, is the /3 divider.  /4 divider don't permit +33mhz of the sdr frequency.