Tell me if this is right.

[FishDog3]

The 266fsb T-birds are ddr chips. so the fsb is actualy 133, right?.

So to set a 1.2gig 266 chip at 1.2 I set fsb to 133x9.

[bodezafa]

10-4 good buddy

[kieron]

No you are wrong, the fsb is as quoted 266MHz, but instead of sending one package of data per clock cycle, two pockets of data are sent, so its not the same as 133 operating twice over, but 266 taking more data with it.
well there you go, hope u understand
kieron

[AZZKICKER]

kieron (Jul 19, 2001 01:06 p.m.):
No you are wrong, the fsb is as quoted 266MHz, but instead of sending one package of data per clock cycle, two pockets of data are sent, so its not the same as 133 operating twice over, but 266 taking more data with it.
well there you go, hope u understand
kieron


YEA....WHAT HE SAID !!!!!!!!!!!!!!!!

[bodezafa]

The FSB is only 133, Just because it sends data on both the up and down stroke of the clock cycle does not mean it is running @ 266. Thats why its called DDR, Double Data Rate

[FishDog3]

kieron (Jul 19, 2001 01:06 p.m.):
No you are wrong, the fsb is as quoted 266MHz, but instead of sending one package of data per clock cycle, two pockets of data are sent, so its not the same as 133 operating twice over, but 266 taking more data with it.
well there you go, hope u understand
kieron

I think that this is a point that some newbies like myself might get caught up on if they don't understand it. You cant set the multiplier to 266x(Mu) because the fsb is actually 133, the data is just sent twice in one clock cycle. So the bandwidth of the fsb is larger, but the speed of it is still 133.

I was just making sure I was right, thx.

fd

[Rottys-R-Us]

Crank it up as high as you can.

But BE safe with the heat !!!!

My 1.33/266 is @ 150x10, 1.80 c/v running great.

Good Luck.

[FishDog3]

Another point that I am confused on. How does the PCI bus deal with DDR, because at 133 a divider of 4 is good, but if the PCI bus sees it as 266 than it is going to be running way above 33. I am assuming that DDR does not have an effect on the PCI bus, this would be another example of 266DDR not being 266 but that it is actualy 133.

fd

[Goldwing]

The 266Mhz is only doubled internal to the CPU (and Ram if on a DDR board) the rest of the system sees it as 133Mhz.