PC166 ram and slot a motherboards

[Me]

Hi,
I just upgraded my SLOT A motherboard to a 900mhz T-bird cpu and i want to try to get at least 1300mhz out of this cpu and i have a theory on how to achive this when i aquire certain items and mainly PC166
my specs are
Gigabyte 7IX slot a motherboard supports up to 1000mhz
900mhz 1.75 volts
128pc100, does not support FSB changing
voodoo 3 16meg agp
235 watt power supply
This setup currenty runs fine like a charm and i just recently slapped a fan on my voodoo 3 so i could overclock it to 197mhz cache speed from 166mhz.
Ok now this is my theory on how to achieve 1297mhz with the slot a
i know if i get a GFD i could easily make it to 1000 now the trick to get the extra 297 mhz is to raise my FSB to 133mhz ,pci speed 30mhz, however since i can not do this through my bios and my motherboard dosnt support it i will have to go around this by using a program call CpuFSB.
Now i just recently discovered this program about a week ago and it just happens to support my motherboard 7IX and i can change the FSB through the program at either FSB 120mhz,pci 20mhz or FSB 133,pci 33mhz to achieve the 297mhz. Since my pc100 dosnt work worth a crap i am thinking about getting the new PC166 at CAS-3 and at 150 CAS-2. I am however not sure if athlon slot a motherboards were willing to get that high even with pc133 in fact i heard that the max it could achieve was only 110mhz on some athlon slot a mainboards, but this was before the time of pc166 ram. Is this theory possible? Also i heard that when you change the FSB this does not affect the CPU in anyway so after this procedure would be completed it would not have any affect on the temperture unless i raised the multiplyier to 10x and 1.85 volts through the GFD.
Any help or explainations on why this would not work and not work is appreciated.

[Murphy]

Like you said, in theory this works, but if it will work in practice, it's highly inprobable.

I don't have experience with FSB OC'ing, never tried it seriously. I have a VIA 133KX chipset, they SUCK when it comes to FSB oc'ing. If you have a AMD chipset or a newer VIA one, you might have more luck, they do better. As far as I can remember, the Gigabyte mobo's are quite good in FSB oc'ing, I've seen some of them doing 117FSB. Maybe they do 133 too, but don't ask me..

And about temps: raising FSB means extra heat. More CPU-cycles=more heat. Don' know if they are linear dependant but though. Lower temps mean higher stability!!! You will need extra voltage for sure (Vcore), also add some VIO (3.3 to 3.4 V or even 3.65V), could help your mobo to get stable. Use radiate to calculte your wattage, is a nice prog. Maybe they have a link at the homepage under software or something like that.

What you are planning to do is set FSB to 133 (or something like that) and get PCI multiplyer from 1/3 to 1/4. Running your pci bus on normal speeds will certainly help. I see you have a T-bird core, they are somewhat more tolerant to high FSB, still no guarantees.

Play around and see what you get. And don't forget to let us know your experiences ;) .

Succes,