Overclocking a duron, Can't use 133mhz bus!?

[Afrochops]

I've had a duron 650 in my machine overclocked to 900 for the past 10 months and I really like it but I cannot get the sys to post at 133 no matter what I do. I've yanked every component except the video card and tried each of my 2 sticks of pc133 ram by themselves and its still a nogo. Is there a gate on the processor that i need to close to achieve 133? any ideas. thanks in advance to any replies.
a.c.

ps.my specs are listed under my profile i think...

 

[DaejangNim]

i bet you forgot to change the ram speed from HOST+PCI CLOCK to just HOST CLOCK, your ram is probably running @ 166 which it can't do, all i did was change that setting when i got my kt133a mobo, its an unlocked duron 600, i went from 10x100(1000mhz) to 6x133(800mhz). it runs faster @ 800mhz with the 266 fsb than it did @ 1gig with the 200fsb.

 

[mstudd]

This question is too hard to answer, you have given no info whatsoever, not even motherboard type.
We would love to help you, just give us some info.

 

[Afrochops]

Sorry guys, I've been reading these forums for quite some time, I just haven't posted often.
specs
kt7-raid(the original flavah)
duron 650
pc133 generic stick of 256mb
radeon 32ddr
sblive 5.1
win98se

anyother pertinent details?

i'm going to try the host clock thing.

 

[BlueScreenVW]

The KT7-RAID board you (and I) have can't run above about 110 MHZ FSB. You need a KT7A for that.
EDIT: Make sure you get the most out of it by studying the BIOS optimization guide here.

 

[DarkMajiq]

Like BlueScreenVW said, the KT7-RAID is incapable of hitting those speeds, you need a motherboard based on the KT133A chipset (the A is important), such as the KT7A-RAID, Asus A7V133, Iwill KK266, etc...

The other option is one of the DDR chipsets, such as the AMD 760, ALi MaGiK1 or VIA KT266... But those also require DDR RAM.

 

[Stanman]

I don't know what you are doing there but a 650 running at 133 is 866 mhz. I have had several run ok at that speed in generic boards with no problens.