difference between 200 and 266 fsb

[krakerman]

ok, i have a 200 fsb tbird. at the time i bought it i also got a mobo that only supported up to 200 fsb. now, is 266 fsb something they clock the chip at, or are there quality differences too? is it possible for me to get a board that supports 266 fsb and in essence make the cpu become a 266 fsb tbird?

[FRANK]

Post more information about your system, namely the motherboard model. You may be in for a pleasant surprise and find out that your board will in fact support the 266 (code "C") series CPU's. If not, the latest chips are offered in both 200 and 266 FSB configurations.

As far as performance, the 200MHz FSB CPU will operate at the same frequency as the 266, without the advantages of the higher FSB somewhat limiting the performance of the memory and some CPU intence programs that do take advantage of the faster bus. Probably not enough for you to notice in all but the most demanding applications.

[krakerman]

well, i have msi k7t po2a. i dont *think* it supports the 266 fsb. what im wondering is if i take a 200fsb chip and slap it in a mobo that supports 266fsb, what are the chances i can push the thing to run at 266? is that big a difference something physically different in the chips, or soemthing like clock speed, where the better chips jsut get sold at higher clock speeds? i already have a 1gig 200fsb tbird runnin in my present board

[FRANK]

According to MSI's site, that board has the KT133 chipset which means the maximum FSB in the 107 / 110 range.

As far as the CPU, I'm not aware of any quality differences between the 200 and 266 CPU's. From what I understand, AMD provides identical chips and sets the default FSB setting to one or the other, this way they provide continuing support for motherboards that have the older KT133 chipset.

[TranceBear]

What I have seen the 200mhz FSB chips run hotter and are easier to O/C. They are known to run at 266mhz FSB easily with good cooling.

[anarki_gr]

when you say good cooling what do u mean trancebear?

[SickBoy]

Well, my Duron ran at 133 (266 DDR) MHz FSB pretty easily.. you just gotta unlock the multiplier and lower it so that you have about an equivalent speed (e.g. 7.5x133 instead of 10x100). From my experience most AMD chips should run at 133 MHz FSB when you do this.

SickBoy

[TranceBear]

Originally posted by anarki_gr
when you say good cooling what do u mean trancebear?


a good heatsink/fan combo and good case ventilation. I would recommend at least a 120mm blowing in and 120mm blowing out if you have room. Idealy a 120mm on the top of the case is better cause heat rises. There are alot of good H/S combos out there from the $20 Vantec to the $80 Swifttec MC-462. I use the $40 Glaciator and it work just fine for me.